/* Asynchronous subprocess control for GNU Emacs.
-Copyright (C) 1985-1988, 1993-1996, 1998-1999, 2001-2015 Free Software
+Copyright (C) 1985-1988, 1993-1996, 1998-1999, 2001-2016 Free Software
Foundation, Inc.
This file is part of GNU Emacs.
#include "coding.h"
#include "process.h"
#include "frame.h"
-#include "termhooks.h"
#include "termopts.h"
-#include "commands.h"
#include "keyboard.h"
#include "blockinput.h"
-#include "dispextern.h"
-#include "composite.h"
#include "atimer.h"
#include "sysselect.h"
#include "syssignal.h"
/* Work around GCC 4.7.0 bug with strict overflow checking; see
<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52904>.
- These lines can be removed once the GCC bug is fixed. */
-#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+ This bug appears to be fixed in GCC 5.1, so don't work around it there. */
+#if __GNUC__ == 4 && __GNUC_MINOR__ >= 3
# pragma GCC diagnostic ignored "-Wstrict-overflow"
#endif
\f
#define NETCONN1_P(p) (EQ (p->type, Qnetwork))
#define SERIALCONN_P(p) (EQ (XPROCESS (p)->type, Qserial))
#define SERIALCONN1_P(p) (EQ (p->type, Qserial))
+#define PIPECONN_P(p) (EQ (XPROCESS (p)->type, Qpipe))
+#define PIPECONN1_P(p) (EQ (p->type, Qpipe))
/* Number of events of change of status of a process. */
static EMACS_INT process_tick;
# define HAVE_SEQPACKET
#endif
-#if !defined (ADAPTIVE_READ_BUFFERING) && !defined (NO_ADAPTIVE_READ_BUFFERING)
-#define ADAPTIVE_READ_BUFFERING
-#endif
-
-#ifdef ADAPTIVE_READ_BUFFERING
#define READ_OUTPUT_DELAY_INCREMENT (TIMESPEC_RESOLUTION / 100)
#define READ_OUTPUT_DELAY_MAX (READ_OUTPUT_DELAY_INCREMENT * 5)
#define READ_OUTPUT_DELAY_MAX_MAX (READ_OUTPUT_DELAY_INCREMENT * 7)
static bool process_output_skip;
-#else
-#define process_output_delay_count 0
-#endif
-
static void create_process (Lisp_Object, char **, Lisp_Object);
#ifdef USABLE_SIGIO
static bool keyboard_bit_set (fd_set *);
/* Indexed by descriptor, gives the process (if any) for that descriptor. */
static Lisp_Object chan_process[FD_SETSIZE];
+#ifdef HAVE_GETADDRINFO_A
+/* Pending DNS requests. */
+static Lisp_Object dns_processes;
+static void wait_for_socket_fds (Lisp_Object process, char *name);
+#endif
/* Alist of elements (NAME . PROCESS). */
static Lisp_Object Vprocess_alist;
p->sentinel = NILP (val) ? Qinternal_default_process_sentinel : val;
}
static void
-pset_status (struct Lisp_Process *p, Lisp_Object val)
-{
- p->status = val;
-}
-static void
pset_tty_name (struct Lisp_Process *p, Lisp_Object val)
{
p->tty_name = val;
{
p->write_queue = val;
}
+static void
+pset_stderrproc (struct Lisp_Process *p, Lisp_Object val)
+{
+ p->stderrproc = val;
+}
\f
static Lisp_Object
if (fd >= 0)
{
-#ifdef PTY_OPEN
+#ifdef PTY_TTY_NAME_SPRINTF
+ PTY_TTY_NAME_SPRINTF
+#else
+ sprintf (pty_name, "/dev/tty%c%x", c, i);
+#endif /* no PTY_TTY_NAME_SPRINTF */
+
/* Set FD's close-on-exec flag. This is needed even if
PT_OPEN calls posix_openpt with O_CLOEXEC, since POSIX
doesn't require support for that combination.
+ Do this after PTY_TTY_NAME_SPRINTF, which on some platforms
+ doesn't work if the close-on-exec flag is set (Bug#20555).
Multithreaded platforms where posix_openpt ignores
O_CLOEXEC (or where PTY_OPEN doesn't call posix_openpt)
have a race condition between the PTY_OPEN and here. */
fcntl (fd, F_SETFD, FD_CLOEXEC);
-#endif
- /* Check to make certain that both sides are available
- this avoids a nasty yet stupid bug in rlogins. */
-#ifdef PTY_TTY_NAME_SPRINTF
- PTY_TTY_NAME_SPRINTF
-#else
- sprintf (pty_name, "/dev/tty%c%x", c, i);
-#endif /* no PTY_TTY_NAME_SPRINTF */
+
+ /* Check to make certain that both sides are available.
+ This avoids a nasty yet stupid bug in rlogins. */
if (faccessat (AT_FDCWD, pty_name, R_OK | W_OK, AT_EACCESS) != 0)
{
emacs_close (fd);
#ifdef HAVE_GNUTLS
p->gnutls_initstage = GNUTLS_STAGE_EMPTY;
+ p->gnutls_boot_parameters = Qnil;
#endif
/* If name is already in use, modify it until it is unused. */
p = XPROCESS (process);
p->raw_status_new = 0;
- if (NETCONN1_P (p) || SERIALCONN1_P (p))
+ if (NETCONN1_P (p) || SERIALCONN1_P (p) || PIPECONN1_P (p))
{
pset_status (p, list2 (Qexit, make_number (0)));
p->tick = ++process_tick;
status = p->status;
if (CONSP (status))
status = XCAR (status);
- if (NETCONN1_P (p) || SERIALCONN1_P (p))
+ if (NETCONN1_P (p) || SERIALCONN1_P (p) || PIPECONN1_P (p))
{
if (EQ (status, Qexit))
status = Qclosed;
This is a list of strings, the first string being the program executed
and the rest of the strings being the arguments given to it.
For a network or serial process, this is nil (process is running) or t
-\(process is stopped). */)
+(process is stopped). */)
(register Lisp_Object process)
{
CHECK_PROCESS (process);
CHECK_BUFFER (buffer);
p = XPROCESS (process);
pset_buffer (p, buffer);
- if (NETCONN1_P (p) || SERIALCONN1_P (p))
+ if (NETCONN1_P (p) || SERIALCONN1_P (p) || PIPECONN1_P (p))
pset_childp (p, Fplist_put (p->childp, QCbuffer, buffer));
setup_process_coding_systems (process);
return buffer;
struct Lisp_Process *p;
CHECK_PROCESS (process);
+
p = XPROCESS (process);
/* Don't signal an error if the process's input file descriptor
}
pset_filter (p, filter);
- if (NETCONN1_P (p) || SERIALCONN1_P (p))
+ if (NETCONN1_P (p) || SERIALCONN1_P (p) || PIPECONN1_P (p))
pset_childp (p, Fplist_put (p->childp, QCfilter, filter));
setup_process_coding_systems (process);
return filter;
sentinel = Qinternal_default_process_sentinel;
pset_sentinel (p, sentinel);
- if (NETCONN1_P (p) || SERIALCONN1_P (p))
+ if (NETCONN1_P (p) || SERIALCONN1_P (p) || PIPECONN1_P (p))
pset_childp (p, Fplist_put (p->childp, QCsentinel, sentinel));
return sentinel;
}
CHECK_RANGED_INTEGER (height, 0, USHRT_MAX);
CHECK_RANGED_INTEGER (width, 0, USHRT_MAX);
- if (XPROCESS (process)->infd < 0
+ if (NETCONN_P (process)
+ || XPROCESS (process)->infd < 0
|| (set_window_size (XPROCESS (process)->infd,
XINT (height), XINT (width))
< 0))
contact = XPROCESS (process)->childp;
#ifdef DATAGRAM_SOCKETS
+
+ if (NETCONN_P (process))
+ wait_for_socket_fds (process, "process-contact");
+
if (DATAGRAM_CONN_P (process)
&& (EQ (key, Qt) || EQ (key, QCremote)))
contact = Fplist_put (contact, QCremote,
Fprocess_datagram_address (process));
#endif
- if ((!NETCONN_P (process) && !SERIALCONN_P (process)) || EQ (key, Qt))
+ if ((!NETCONN_P (process) && !SERIALCONN_P (process) && !PIPECONN_P (process))
+ || EQ (key, Qt))
return contact;
if (NILP (key) && NETCONN_P (process))
return list2 (Fplist_get (contact, QChost),
if (NILP (key) && SERIALCONN_P (process))
return list2 (Fplist_get (contact, QCport),
Fplist_get (contact, QCspeed));
+ /* FIXME: Return a meaningful value (e.g., the child end of the pipe)
+ if the pipe process is useful for purposes other than receiving
+ stderr. */
+ if (NILP (key) && PIPECONN_P (process))
+ return Qt;
return Fplist_get (contact, key);
}
:sentinel SENTINEL -- Install SENTINEL as the process sentinel.
+:stderr STDERR -- STDERR is either a buffer or a pipe process attached
+to the standard error of subprocess. Specifying this implies
+`:connection-type' is set to `pipe'.
+
usage: (make-process &rest ARGS) */)
(ptrdiff_t nargs, Lisp_Object *args)
{
Lisp_Object buffer, name, command, program, proc, contact, current_dir, tem;
+ Lisp_Object xstderr, stderrproc;
ptrdiff_t count = SPECPDL_INDEX ();
- struct gcpro gcpro1;
USE_SAFE_ALLOCA;
if (nargs == 0)
/* Save arguments for process-contact and clone-process. */
contact = Flist (nargs, args);
- GCPRO1 (contact);
buffer = Fplist_get (contact, QCbuffer);
if (!NILP (buffer))
/* Make sure that the child will be able to chdir to the current
buffer's current directory, or its unhandled equivalent. We
can't just have the child check for an error when it does the
- chdir, since it's in a vfork.
-
- We have to GCPRO around this because Fexpand_file_name and
- Funhandled_file_name_directory might call a file name handling
- function. The argument list is protected by the caller, so all
- we really have to worry about is buffer. */
- {
- struct gcpro gcpro1;
- GCPRO1 (buffer);
- current_dir = encode_current_directory ();
- UNGCPRO;
- }
+ chdir, since it's in a vfork. */
+ current_dir = encode_current_directory ();
name = Fplist_get (contact, QCname);
CHECK_STRING (name);
if (!NILP (program))
CHECK_STRING (program);
+ stderrproc = Qnil;
+ xstderr = Fplist_get (contact, QCstderr);
+ if (PROCESSP (xstderr))
+ {
+ if (!PIPECONN_P (xstderr))
+ error ("Process is not a pipe process");
+ stderrproc = xstderr;
+ }
+ else if (!NILP (xstderr))
+ {
+ CHECK_STRING (program);
+ stderrproc = CALLN (Fmake_pipe_process,
+ QCname,
+ concat2 (name, build_string (" stderr")),
+ QCbuffer,
+ Fget_buffer_create (xstderr));
+ }
+
proc = make_process (name);
/* If an error occurs and we can't start the process, we want to
remove it from the process list. This means that each error
pset_plist (XPROCESS (proc), Qnil);
pset_type (XPROCESS (proc), Qreal);
pset_buffer (XPROCESS (proc), buffer);
- pset_sentinel (XPROCESS (proc), Qinternal_default_process_sentinel);
- pset_filter (XPROCESS (proc), Qinternal_default_process_filter);
+ pset_sentinel (XPROCESS (proc), Fplist_get (contact, QCsentinel));
+ pset_filter (XPROCESS (proc), Fplist_get (contact, QCfilter));
pset_command (XPROCESS (proc), Fcopy_sequence (command));
if (tem = Fplist_get (contact, QCnoquery), !NILP (tem))
else
report_file_error ("Unknown connection type", tem);
+ if (!NILP (stderrproc))
+ {
+ pset_stderrproc (XPROCESS (proc), stderrproc);
+
+ XPROCESS (proc)->pty_flag = false;
+ }
+
#ifdef HAVE_GNUTLS
/* AKA GNUTLS_INITSTAGE(proc). */
XPROCESS (proc)->gnutls_initstage = GNUTLS_STAGE_EMPTY;
pset_gnutls_cred_type (XPROCESS (proc), Qnil);
#endif
-#ifdef ADAPTIVE_READ_BUFFERING
XPROCESS (proc)->adaptive_read_buffering
= (NILP (Vprocess_adaptive_read_buffering) ? 0
: EQ (Vprocess_adaptive_read_buffering, Qt) ? 1 : 2);
-#endif
/* Make the process marker point into the process buffer (if any). */
if (BUFFERP (buffer))
/* Qt denotes we have not yet called Ffind_operation_coding_system. */
Lisp_Object coding_systems = Qt;
Lisp_Object val, *args2;
- struct gcpro gcpro1, gcpro2;
tem = Fplist_get (contact, QCcoding);
if (!NILP (tem))
args2[i++] = buffer;
for (tem2 = command; CONSP (tem2); tem2 = XCDR (tem2))
args2[i++] = XCAR (tem2);
- GCPRO2 (proc, current_dir);
if (!NILP (program))
coding_systems = Ffind_operation_coding_system (nargs2, args2);
- UNGCPRO;
if (CONSP (coding_systems))
val = XCAR (coding_systems);
else if (CONSP (Vdefault_process_coding_system))
args2[i++] = buffer;
for (tem2 = command; CONSP (tem2); tem2 = XCDR (tem2))
args2[i++] = XCAR (tem2);
- GCPRO2 (proc, current_dir);
if (!NILP (program))
coding_systems = Ffind_operation_coding_system (nargs2, args2);
- UNGCPRO;
}
if (CONSP (coding_systems))
val = XCDR (coding_systems);
&& !(SCHARS (program) > 1
&& IS_DEVICE_SEP (SREF (program, 1))))
{
- struct gcpro gcpro1, gcpro2;
-
tem = Qnil;
- GCPRO2 (buffer, current_dir);
openp (Vexec_path, program, Vexec_suffixes, &tem,
make_number (X_OK), false);
- UNGCPRO;
if (NILP (tem))
report_file_error ("Searching for program", program);
tem = Fexpand_file_name (tem, Qnil);
tem = remove_slash_colon (tem);
Lisp_Object arg_encoding = Qnil;
- struct gcpro gcpro1;
- GCPRO1 (tem);
/* Encode the file name and put it in NEW_ARGV.
That's where the child will use it to execute the program. */
new_argc++;
}
- UNGCPRO;
-
/* Now that everything is encoded we can collect the strings into
NEW_ARGV. */
char **new_argv;
else
create_pty (proc);
- UNGCPRO;
SAFE_FREE ();
return unbind_to (count, proc);
}
int inchannel, outchannel;
pid_t pid;
int vfork_errno;
- int forkin, forkout;
+ int forkin, forkout, forkerr = -1;
bool pty_flag = 0;
char pty_name[PTY_NAME_SIZE];
Lisp_Object lisp_pty_name = Qnil;
outchannel = p->open_fd[WRITE_TO_SUBPROCESS];
inchannel = p->open_fd[READ_FROM_SUBPROCESS];
forkout = p->open_fd[SUBPROCESS_STDOUT];
+
+ if (!NILP (p->stderrproc))
+ {
+ struct Lisp_Process *pp = XPROCESS (p->stderrproc);
+
+ forkerr = pp->open_fd[SUBPROCESS_STDOUT];
+
+ /* Close unnecessary file descriptors. */
+ close_process_fd (&pp->open_fd[WRITE_TO_SUBPROCESS]);
+ close_process_fd (&pp->open_fd[SUBPROCESS_STDIN]);
+ }
}
#ifndef WINDOWSNT
#ifndef WINDOWSNT
/* vfork, and prevent local vars from being clobbered by the vfork. */
- {
- Lisp_Object volatile current_dir_volatile = current_dir;
- Lisp_Object volatile lisp_pty_name_volatile = lisp_pty_name;
- char **volatile new_argv_volatile = new_argv;
- int volatile forkin_volatile = forkin;
- int volatile forkout_volatile = forkout;
- struct Lisp_Process *p_volatile = p;
-
- pid = vfork ();
-
- current_dir = current_dir_volatile;
- lisp_pty_name = lisp_pty_name_volatile;
- new_argv = new_argv_volatile;
- forkin = forkin_volatile;
- forkout = forkout_volatile;
- p = p_volatile;
-
- pty_flag = p->pty_flag;
- }
+ Lisp_Object volatile current_dir_volatile = current_dir;
+ Lisp_Object volatile lisp_pty_name_volatile = lisp_pty_name;
+ char **volatile new_argv_volatile = new_argv;
+ int volatile forkin_volatile = forkin;
+ int volatile forkout_volatile = forkout;
+ int volatile forkerr_volatile = forkerr;
+ struct Lisp_Process *p_volatile = p;
+
+ pid = vfork ();
+
+ current_dir = current_dir_volatile;
+ lisp_pty_name = lisp_pty_name_volatile;
+ new_argv = new_argv_volatile;
+ forkin = forkin_volatile;
+ forkout = forkout_volatile;
+ forkerr = forkerr_volatile;
+ p = p_volatile;
+
+ pty_flag = p->pty_flag;
if (pid == 0)
#endif /* not WINDOWSNT */
{
- int xforkin = forkin;
- int xforkout = forkout;
-
/* Make the pty be the controlling terminal of the process. */
#ifdef HAVE_PTYS
/* First, disconnect its current controlling terminal. */
process_set_signal to fail on SGI when using a pipe. */
setsid ();
/* Make the pty's terminal the controlling terminal. */
- if (pty_flag && xforkin >= 0)
+ if (pty_flag && forkin >= 0)
{
#ifdef TIOCSCTTY
/* We ignore the return value
because faith@cs.unc.edu says that is necessary on Linux. */
- ioctl (xforkin, TIOCSCTTY, 0);
+ ioctl (forkin, TIOCSCTTY, 0);
#endif
}
#if defined (LDISC1)
- if (pty_flag && xforkin >= 0)
+ if (pty_flag && forkin >= 0)
{
struct termios t;
- tcgetattr (xforkin, &t);
+ tcgetattr (forkin, &t);
t.c_lflag = LDISC1;
- if (tcsetattr (xforkin, TCSANOW, &t) < 0)
+ if (tcsetattr (forkin, TCSANOW, &t) < 0)
emacs_perror ("create_process/tcsetattr LDISC1");
}
#else
#if defined (NTTYDISC) && defined (TIOCSETD)
- if (pty_flag && xforkin >= 0)
+ if (pty_flag && forkin >= 0)
{
/* Use new line discipline. */
int ldisc = NTTYDISC;
- ioctl (xforkin, TIOCSETD, &ldisc);
+ ioctl (forkin, TIOCSETD, &ldisc);
}
#endif
#endif
/* I wonder if emacs_close (emacs_open (SSDATA (lisp_pty_name), ...))
would work? */
- if (xforkin >= 0)
- emacs_close (xforkin);
- xforkout = xforkin = emacs_open (SSDATA (lisp_pty_name), O_RDWR, 0);
+ if (forkin >= 0)
+ emacs_close (forkin);
+ forkout = forkin = emacs_open (SSDATA (lisp_pty_name), O_RDWR, 0);
- if (xforkin < 0)
+ if (forkin < 0)
{
emacs_perror (SSDATA (lisp_pty_name));
_exit (EXIT_CANCELED);
unblock_child_signal (&oldset);
if (pty_flag)
- child_setup_tty (xforkout);
+ child_setup_tty (forkout);
+
+ if (forkerr < 0)
+ forkerr = forkout;
#ifdef WINDOWSNT
- pid = child_setup (xforkin, xforkout, xforkout, new_argv, 1, current_dir);
+ pid = child_setup (forkin, forkout, forkerr, new_argv, 1, current_dir);
#else /* not WINDOWSNT */
- child_setup (xforkin, xforkout, xforkout, new_argv, 1, current_dir);
+ child_setup (forkin, forkout, forkerr, new_argv, 1, current_dir);
#endif /* not WINDOWSNT */
}
close_process_fd (&p->open_fd[READ_FROM_EXEC_MONITOR]);
}
#endif
+ if (!NILP (p->stderrproc))
+ {
+ struct Lisp_Process *pp = XPROCESS (p->stderrproc);
+ close_process_fd (&pp->open_fd[SUBPROCESS_STDOUT]);
+ }
}
}
p->pid = -2;
}
+DEFUN ("make-pipe-process", Fmake_pipe_process, Smake_pipe_process,
+ 0, MANY, 0,
+ doc: /* Create and return a bidirectional pipe process.
+
+In Emacs, pipes are represented by process objects, so input and
+output work as for subprocesses, and `delete-process' closes a pipe.
+However, a pipe process has no process id, it cannot be signaled,
+and the status codes are different from normal processes.
+
+Arguments are specified as keyword/argument pairs. The following
+arguments are defined:
+
+:name NAME -- NAME is the name of the process. It is modified if necessary to make it unique.
+
+:buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate
+with the process. Process output goes at the end of that buffer,
+unless you specify an output stream or filter function to handle the
+output. If BUFFER is not given, the value of NAME is used.
+
+:coding CODING -- If CODING is a symbol, it specifies the coding
+system used for both reading and writing for this process. If CODING
+is a cons (DECODING . ENCODING), DECODING is used for reading, and
+ENCODING is used for writing.
+
+:noquery BOOL -- When exiting Emacs, query the user if BOOL is nil and
+the process is running. If BOOL is not given, query before exiting.
+
+:stop BOOL -- Start process in the `stopped' state if BOOL non-nil.
+In the stopped state, a pipe process does not accept incoming data,
+but you can send outgoing data. The stopped state is cleared by
+`continue-process' and set by `stop-process'.
+
+:filter FILTER -- Install FILTER as the process filter.
+
+:sentinel SENTINEL -- Install SENTINEL as the process sentinel.
+
+usage: (make-pipe-process &rest ARGS) */)
+ (ptrdiff_t nargs, Lisp_Object *args)
+{
+ Lisp_Object proc, contact;
+ struct Lisp_Process *p;
+ Lisp_Object name, buffer;
+ Lisp_Object tem;
+ ptrdiff_t specpdl_count;
+ int inchannel, outchannel;
+
+ if (nargs == 0)
+ return Qnil;
+
+ contact = Flist (nargs, args);
+
+ name = Fplist_get (contact, QCname);
+ CHECK_STRING (name);
+ proc = make_process (name);
+ specpdl_count = SPECPDL_INDEX ();
+ record_unwind_protect (remove_process, proc);
+ p = XPROCESS (proc);
+
+ if (emacs_pipe (p->open_fd + SUBPROCESS_STDIN) != 0
+ || emacs_pipe (p->open_fd + READ_FROM_SUBPROCESS) != 0)
+ report_file_error ("Creating pipe", Qnil);
+ outchannel = p->open_fd[WRITE_TO_SUBPROCESS];
+ inchannel = p->open_fd[READ_FROM_SUBPROCESS];
+
+ fcntl (inchannel, F_SETFL, O_NONBLOCK);
+ fcntl (outchannel, F_SETFL, O_NONBLOCK);
+
+#ifdef WINDOWSNT
+ register_aux_fd (inchannel);
+#endif
+
+ /* Record this as an active process, with its channels. */
+ chan_process[inchannel] = proc;
+ p->infd = inchannel;
+ p->outfd = outchannel;
+
+ if (inchannel > max_process_desc)
+ max_process_desc = inchannel;
+
+ buffer = Fplist_get (contact, QCbuffer);
+ if (NILP (buffer))
+ buffer = name;
+ buffer = Fget_buffer_create (buffer);
+ pset_buffer (p, buffer);
+
+ pset_childp (p, contact);
+ pset_plist (p, Fcopy_sequence (Fplist_get (contact, QCplist)));
+ pset_type (p, Qpipe);
+ pset_sentinel (p, Fplist_get (contact, QCsentinel));
+ pset_filter (p, Fplist_get (contact, QCfilter));
+ pset_log (p, Qnil);
+ if (tem = Fplist_get (contact, QCnoquery), !NILP (tem))
+ p->kill_without_query = 1;
+ if (tem = Fplist_get (contact, QCstop), !NILP (tem))
+ pset_command (p, Qt);
+ eassert (! p->pty_flag);
+
+ if (!EQ (p->command, Qt))
+ {
+ FD_SET (inchannel, &input_wait_mask);
+ FD_SET (inchannel, &non_keyboard_wait_mask);
+ }
+ p->adaptive_read_buffering
+ = (NILP (Vprocess_adaptive_read_buffering) ? 0
+ : EQ (Vprocess_adaptive_read_buffering, Qt) ? 1 : 2);
+
+ /* Make the process marker point into the process buffer (if any). */
+ if (BUFFERP (buffer))
+ set_marker_both (p->mark, buffer,
+ BUF_ZV (XBUFFER (buffer)),
+ BUF_ZV_BYTE (XBUFFER (buffer)));
+
+ {
+ /* Setup coding systems for communicating with the network stream. */
+
+ /* Qt denotes we have not yet called Ffind_operation_coding_system. */
+ Lisp_Object coding_systems = Qt;
+ Lisp_Object val;
+
+ tem = Fplist_get (contact, QCcoding);
+ val = Qnil;
+ if (!NILP (tem))
+ {
+ val = tem;
+ if (CONSP (val))
+ val = XCAR (val);
+ }
+ else if (!NILP (Vcoding_system_for_read))
+ val = Vcoding_system_for_read;
+ else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters)))
+ || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters))))
+ /* We dare not decode end-of-line format by setting VAL to
+ Qraw_text, because the existing Emacs Lisp libraries
+ assume that they receive bare code including a sequence of
+ CR LF. */
+ val = Qnil;
+ else
+ {
+ if (CONSP (coding_systems))
+ val = XCAR (coding_systems);
+ else if (CONSP (Vdefault_process_coding_system))
+ val = XCAR (Vdefault_process_coding_system);
+ else
+ val = Qnil;
+ }
+ pset_decode_coding_system (p, val);
+
+ if (!NILP (tem))
+ {
+ val = tem;
+ if (CONSP (val))
+ val = XCDR (val);
+ }
+ else if (!NILP (Vcoding_system_for_write))
+ val = Vcoding_system_for_write;
+ else if (NILP (BVAR (current_buffer, enable_multibyte_characters)))
+ val = Qnil;
+ else
+ {
+ if (CONSP (coding_systems))
+ val = XCDR (coding_systems);
+ else if (CONSP (Vdefault_process_coding_system))
+ val = XCDR (Vdefault_process_coding_system);
+ else
+ val = Qnil;
+ }
+ pset_encode_coding_system (p, val);
+ }
+ /* This may signal an error. */
+ setup_process_coding_systems (proc);
+
+ specpdl_ptr = specpdl + specpdl_count;
+
+ return proc;
+}
+
\f
/* Convert an internal struct sockaddr to a lisp object (vector or string).
The address family of sa is not included in the result. */
{
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa;
uint16_t *ip6 = (uint16_t *)&sin6->sin6_addr;
- len = sizeof (sin6->sin6_addr) + 1;
+ len = sizeof (sin6->sin6_addr) / 2 + 1;
hostport = XINT (p->contents[--len]);
sin6->sin6_port = htons (hostport);
for (i = 0; i < len; i++)
CHECK_PROCESS (process);
+ if (NETCONN_P (process))
+ wait_for_socket_fds (process, "process-datagram-address");
+
if (!DATAGRAM_CONN_P (process))
return Qnil;
CHECK_PROCESS (process);
+ if (NETCONN_P (process))
+ wait_for_socket_fds (process, "set-process-datagram-address");
+
if (!DATAGRAM_CONN_P (process))
return Qnil;
if (!NETCONN1_P (p))
error ("Process is not a network process");
+ wait_for_socket_fds (process, "set-network-process-option");
+
s = p->infd;
if (s < 0)
error ("Process is not running");
:flowcontrol FLOWCONTROL -- FLOWCONTROL determines the type of
flowcontrol to be used, which is either nil (don't use flowcontrol),
the symbol `hw' (use RTS/CTS hardware flowcontrol), or the symbol `sw'
-\(use XON/XOFF software flowcontrol). If FLOWCONTROL is not given, no
+(use XON/XOFF software flowcontrol). If FLOWCONTROL is not given, no
flowcontrol is used.
`serial-process-configure' is called by `make-serial-process' for the
Examples:
-\(serial-process-configure :process "/dev/ttyS0" :speed 1200)
+(serial-process-configure :process "/dev/ttyS0" :speed 1200)
-\(serial-process-configure
- :buffer "COM1" :stopbits 1 :parity 'odd :flowcontrol 'hw)
+(serial-process-configure
+ :buffer "COM1" :stopbits 1 :parity \\='odd :flowcontrol \\='hw)
-\(serial-process-configure :port "\\\\.\\COM13" :bytesize 7)
+(serial-process-configure :port "\\\\.\\COM13" :bytesize 7)
usage: (serial-process-configure &rest ARGS) */)
(ptrdiff_t nargs, Lisp_Object *args)
struct Lisp_Process *p;
Lisp_Object contact = Qnil;
Lisp_Object proc = Qnil;
- struct gcpro gcpro1;
contact = Flist (nargs, args);
- GCPRO1 (contact);
proc = Fplist_get (contact, QCprocess);
if (NILP (proc))
error ("Not a serial process");
if (NILP (Fplist_get (p->childp, QCspeed)))
- {
- UNGCPRO;
- return Qnil;
- }
+ return Qnil;
serial_configure (p, contact);
-
- UNGCPRO;
return Qnil;
}
Examples:
-\(make-serial-process :port "/dev/ttyS0" :speed 9600)
+(make-serial-process :port "/dev/ttyS0" :speed 9600)
-\(make-serial-process :port "COM1" :speed 115200 :stopbits 2)
+(make-serial-process :port "COM1" :speed 115200 :stopbits 2)
-\(make-serial-process :port "\\\\.\\COM13" :speed 1200 :bytesize 7 :parity 'odd)
+(make-serial-process :port "\\\\.\\COM13" :speed 1200 :bytesize 7 :parity \\='odd)
-\(make-serial-process :port "/dev/tty.BlueConsole-SPP-1" :speed nil)
+(make-serial-process :port "/dev/tty.BlueConsole-SPP-1" :speed nil)
usage: (make-serial-process &rest ARGS) */)
(ptrdiff_t nargs, Lisp_Object *args)
int fd = -1;
Lisp_Object proc, contact, port;
struct Lisp_Process *p;
- struct gcpro gcpro1;
Lisp_Object name, buffer;
Lisp_Object tem, val;
ptrdiff_t specpdl_count;
return Qnil;
contact = Flist (nargs, args);
- GCPRO1 (contact);
port = Fplist_get (contact, QCport);
if (NILP (port))
specpdl_ptr = specpdl + specpdl_count;
- UNGCPRO;
return proc;
}
-/* Create a network stream/datagram client/server process. Treated
- exactly like a normal process when reading and writing. Primary
- differences are in status display and process deletion. A network
- connection has no PID; you cannot signal it. All you can do is
- stop/continue it and deactivate/close it via delete-process. */
-
-DEFUN ("make-network-process", Fmake_network_process, Smake_network_process,
- 0, MANY, 0,
- doc: /* Create and return a network server or client process.
-
-In Emacs, network connections are represented by process objects, so
-input and output work as for subprocesses and `delete-process' closes
-a network connection. However, a network process has no process id,
-it cannot be signaled, and the status codes are different from normal
-processes.
+void set_network_socket_coding_system (Lisp_Object proc)
+{
+ Lisp_Object tem;
+ struct Lisp_Process *p = XPROCESS (proc);
+ Lisp_Object contact = p->childp;
+ Lisp_Object service, host, name;
+ Lisp_Object coding_systems = Qt;
+ Lisp_Object val;
-Arguments are specified as keyword/argument pairs. The following
-arguments are defined:
+ service = Fplist_get (contact, QCservice);
+ host = Fplist_get (contact, QChost);
+ name = Fplist_get (contact, QCname);
-:name NAME -- NAME is name for process. It is modified if necessary
-to make it unique.
+ tem = Fplist_member (contact, QCcoding);
+ if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem))))
+ tem = Qnil; /* No error message (too late!). */
-:buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate
-with the process. Process output goes at end of that buffer, unless
-you specify an output stream or filter function to handle the output.
-BUFFER may be also nil, meaning that this process is not associated
-with any buffer.
+ /* Setup coding systems for communicating with the network stream. */
+ /* Qt denotes we have not yet called Ffind_operation_coding_system. */
-:host HOST -- HOST is name of the host to connect to, or its IP
+ if (!NILP (tem))
+ {
+ val = XCAR (XCDR (tem));
+ if (CONSP (val))
+ val = XCAR (val);
+ }
+ else if (!NILP (Vcoding_system_for_read))
+ val = Vcoding_system_for_read;
+ else if ((!NILP (p->buffer) &&
+ NILP (BVAR (XBUFFER (p->buffer), enable_multibyte_characters)))
+ || (NILP (p->buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters))))
+ /* We dare not decode end-of-line format by setting VAL to
+ Qraw_text, because the existing Emacs Lisp libraries
+ assume that they receive bare code including a sequence of
+ CR LF. */
+ val = Qnil;
+ else
+ {
+ if (NILP (host) || NILP (service))
+ coding_systems = Qnil;
+ else
+ coding_systems = CALLN (Ffind_operation_coding_system,
+ Qopen_network_stream, name, p->buffer,
+ host, service);
+ if (CONSP (coding_systems))
+ val = XCAR (coding_systems);
+ else if (CONSP (Vdefault_process_coding_system))
+ val = XCAR (Vdefault_process_coding_system);
+ else
+ val = Qnil;
+ }
+ pset_decode_coding_system (p, val);
+
+ if (!NILP (tem))
+ {
+ val = XCAR (XCDR (tem));
+ if (CONSP (val))
+ val = XCDR (val);
+ }
+ else if (!NILP (Vcoding_system_for_write))
+ val = Vcoding_system_for_write;
+ else if (NILP (BVAR (current_buffer, enable_multibyte_characters)))
+ val = Qnil;
+ else
+ {
+ if (EQ (coding_systems, Qt))
+ {
+ if (NILP (host) || NILP (service))
+ coding_systems = Qnil;
+ else
+ coding_systems = CALLN (Ffind_operation_coding_system,
+ Qopen_network_stream, name, p->buffer,
+ host, service);
+ }
+ if (CONSP (coding_systems))
+ val = XCDR (coding_systems);
+ else if (CONSP (Vdefault_process_coding_system))
+ val = XCDR (Vdefault_process_coding_system);
+ else
+ val = Qnil;
+ }
+ pset_encode_coding_system (p, val);
+
+ pset_decoding_buf (p, empty_unibyte_string);
+ p->decoding_carryover = 0;
+ pset_encoding_buf (p, empty_unibyte_string);
+
+ p->inherit_coding_system_flag
+ = !(!NILP (tem) || NILP (p->buffer) || !inherit_process_coding_system);
+}
+
+void connect_network_socket (Lisp_Object proc, Lisp_Object ip_addresses)
+{
+ ptrdiff_t count = SPECPDL_INDEX ();
+ ptrdiff_t count1;
+ int s = -1, outch, inch;
+ int xerrno = 0;
+ Lisp_Object ip_address;
+ int family;
+ struct sockaddr *sa = NULL;
+ int ret;
+ int addrlen;
+ struct Lisp_Process *p = XPROCESS (proc);
+ Lisp_Object contact = p->childp;
+ int optbits = 0;
+
+ /* Do this in case we never enter the while-loop below. */
+ count1 = SPECPDL_INDEX ();
+ s = -1;
+
+ while (!NILP (ip_addresses))
+ {
+ ip_address = XCAR (ip_addresses);
+ ip_addresses = XCDR (ip_addresses);
+
+#ifdef WINDOWSNT
+ retry_connect:
+#endif
+
+ addrlen = get_lisp_to_sockaddr_size (ip_address, &family);
+ if (sa)
+ free (sa);
+ sa = xmalloc (addrlen);
+ conv_lisp_to_sockaddr (family, ip_address, sa, addrlen);
+
+ s = socket (family, p->socktype | SOCK_CLOEXEC, p->ai_protocol);
+ if (s < 0)
+ {
+ xerrno = errno;
+ continue;
+ }
+
+#ifdef DATAGRAM_SOCKETS
+ if (!p->is_server && p->socktype == SOCK_DGRAM)
+ break;
+#endif /* DATAGRAM_SOCKETS */
+
+#ifdef NON_BLOCKING_CONNECT
+ if (p->is_non_blocking_client)
+ {
+ ret = fcntl (s, F_SETFL, O_NONBLOCK);
+ if (ret < 0)
+ {
+ xerrno = errno;
+ emacs_close (s);
+ s = -1;
+ continue;
+ }
+ }
+#endif
+
+ /* Make us close S if quit. */
+ record_unwind_protect_int (close_file_unwind, s);
+
+ /* Parse network options in the arg list. We simply ignore anything
+ which isn't a known option (including other keywords). An error
+ is signaled if setting a known option fails. */
+ {
+ Lisp_Object params = contact, key, val;
+
+ while (!NILP (params))
+ {
+ key = XCAR (params);
+ params = XCDR (params);
+ val = XCAR (params);
+ params = XCDR (params);
+ optbits |= set_socket_option (s, key, val);
+ }
+ }
+
+ if (p->is_server)
+ {
+ /* Configure as a server socket. */
+
+ /* SO_REUSEADDR = 1 is default for server sockets; must specify
+ explicit :reuseaddr key to override this. */
+#ifdef HAVE_LOCAL_SOCKETS
+ if (family != AF_LOCAL)
+#endif
+ if (!(optbits & (1 << OPIX_REUSEADDR)))
+ {
+ int optval = 1;
+ if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval))
+ report_file_error ("Cannot set reuse option on server socket", Qnil);
+ }
+
+ if (bind (s, sa, addrlen))
+ report_file_error ("Cannot bind server socket", Qnil);
+
+#ifdef HAVE_GETSOCKNAME
+ if (p->port == 0)
+ {
+ struct sockaddr_in sa1;
+ socklen_t len1 = sizeof (sa1);
+ if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0)
+ {
+ Lisp_Object service;
+ service = make_number (ntohs (sa1.sin_port));
+ contact = Fplist_put (contact, QCservice, service);
+ // Save the port number so that we can stash it in
+ // the process object later.
+ ((struct sockaddr_in *)sa)->sin_port = sa1.sin_port;
+ }
+ }
+#endif
+
+ if (p->socktype != SOCK_DGRAM && listen (s, p->backlog))
+ report_file_error ("Cannot listen on server socket", Qnil);
+
+ break;
+ }
+
+ immediate_quit = 1;
+ QUIT;
+
+ ret = connect (s, sa, addrlen);
+ xerrno = errno;
+
+ if (ret == 0 || xerrno == EISCONN)
+ {
+ /* The unwind-protect will be discarded afterwards.
+ Likewise for immediate_quit. */
+ break;
+ }
+
+#ifdef NON_BLOCKING_CONNECT
+#ifdef EINPROGRESS
+ if (p->is_non_blocking_client && xerrno == EINPROGRESS)
+ break;
+#else
+#ifdef EWOULDBLOCK
+ if (p->is_non_blocking_client && xerrno == EWOULDBLOCK)
+ break;
+#endif
+#endif
+#endif
+
+#ifndef WINDOWSNT
+ if (xerrno == EINTR)
+ {
+ /* Unlike most other syscalls connect() cannot be called
+ again. (That would return EALREADY.) The proper way to
+ wait for completion is pselect(). */
+ int sc;
+ socklen_t len;
+ fd_set fdset;
+ retry_select:
+ FD_ZERO (&fdset);
+ FD_SET (s, &fdset);
+ QUIT;
+ sc = pselect (s + 1, NULL, &fdset, NULL, NULL, NULL);
+ if (sc == -1)
+ {
+ if (errno == EINTR)
+ goto retry_select;
+ else
+ report_file_error ("Failed select", Qnil);
+ }
+ eassert (sc > 0);
+
+ len = sizeof xerrno;
+ eassert (FD_ISSET (s, &fdset));
+ if (getsockopt (s, SOL_SOCKET, SO_ERROR, &xerrno, &len) < 0)
+ report_file_error ("Failed getsockopt", Qnil);
+ if (xerrno)
+ report_file_errno ("Failed connect", Qnil, xerrno);
+ break;
+ }
+#endif /* !WINDOWSNT */
+
+ immediate_quit = 0;
+
+ /* Discard the unwind protect closing S. */
+ specpdl_ptr = specpdl + count1;
+ emacs_close (s);
+ s = -1;
+
+#ifdef WINDOWSNT
+ if (xerrno == EINTR)
+ goto retry_connect;
+#endif
+ }
+
+ if (s >= 0)
+ {
+#ifdef DATAGRAM_SOCKETS
+ if (p->socktype == SOCK_DGRAM)
+ {
+ if (datagram_address[s].sa)
+ emacs_abort ();
+
+ datagram_address[s].sa = xmalloc (addrlen);
+ datagram_address[s].len = addrlen;
+ if (p->is_server)
+ {
+ Lisp_Object remote;
+ memset (datagram_address[s].sa, 0, addrlen);
+ if (remote = Fplist_get (contact, QCremote), !NILP (remote))
+ {
+ int rfamily, rlen;
+ rlen = get_lisp_to_sockaddr_size (remote, &rfamily);
+ if (rlen != 0 && rfamily == family
+ && rlen == addrlen)
+ conv_lisp_to_sockaddr (rfamily, remote,
+ datagram_address[s].sa, rlen);
+ }
+ }
+ else
+ memcpy (datagram_address[s].sa, sa, addrlen);
+ }
+#endif
+
+ contact = Fplist_put (contact, p->is_server? QClocal: QCremote,
+ conv_sockaddr_to_lisp (sa, addrlen));
+#ifdef HAVE_GETSOCKNAME
+ if (!p->is_server)
+ {
+ struct sockaddr_in sa1;
+ socklen_t len1 = sizeof (sa1);
+ if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0)
+ contact = Fplist_put (contact, QClocal,
+ conv_sockaddr_to_lisp ((struct sockaddr *)&sa1, len1));
+ }
+#endif
+ }
+
+ immediate_quit = 0;
+
+ if (s < 0)
+ {
+ /* If non-blocking got this far - and failed - assume non-blocking is
+ not supported after all. This is probably a wrong assumption, but
+ the normal blocking calls to open-network-stream handles this error
+ better. */
+ if (p->is_non_blocking_client)
+ return;
+
+ report_file_errno ((p->is_server
+ ? "make server process failed"
+ : "make client process failed"),
+ contact, xerrno);
+ }
+
+ inch = s;
+ outch = s;
+
+ chan_process[inch] = proc;
+
+ fcntl (inch, F_SETFL, O_NONBLOCK);
+
+ p = XPROCESS (proc);
+ p->open_fd[SUBPROCESS_STDIN] = inch;
+ p->infd = inch;
+ p->outfd = outch;
+
+ /* Discard the unwind protect for closing S, if any. */
+ specpdl_ptr = specpdl + count1;
+
+ /* Unwind bind_polling_period and request_sigio. */
+ unbind_to (count, Qnil);
+
+ if (p->is_server && p->socktype != SOCK_DGRAM)
+ pset_status (p, Qlisten);
+
+ /* Make the process marker point into the process buffer (if any). */
+ if (BUFFERP (p->buffer))
+ set_marker_both (p->mark, p->buffer,
+ BUF_ZV (XBUFFER (p->buffer)),
+ BUF_ZV_BYTE (XBUFFER (p->buffer)));
+
+#ifdef NON_BLOCKING_CONNECT
+ if (p->is_non_blocking_client)
+ {
+ /* We may get here if connect did succeed immediately. However,
+ in that case, we still need to signal this like a non-blocking
+ connection. */
+ pset_status (p, Qconnect);
+ if (!FD_ISSET (inch, &connect_wait_mask))
+ {
+ FD_SET (inch, &connect_wait_mask);
+ FD_SET (inch, &write_mask);
+ num_pending_connects++;
+ }
+ }
+ else
+#endif
+ /* A server may have a client filter setting of Qt, but it must
+ still listen for incoming connects unless it is stopped. */
+ if ((!EQ (p->filter, Qt) && !EQ (p->command, Qt))
+ || (EQ (p->status, Qlisten) && NILP (p->command)))
+ {
+ FD_SET (inch, &input_wait_mask);
+ FD_SET (inch, &non_keyboard_wait_mask);
+ }
+
+ if (inch > max_process_desc)
+ max_process_desc = inch;
+
+ setup_process_coding_systems (proc);
+
+#ifdef HAVE_GNUTLS
+ /* Continue the asynchronous connection. */
+ if (!NILP (p->gnutls_boot_parameters))
+ {
+ Lisp_Object boot, params = p->gnutls_boot_parameters;
+
+ boot = Fgnutls_boot (proc, XCAR (params), XCDR (params));
+ p->gnutls_boot_parameters = Qnil;
+
+ if (NILP (boot) || STRINGP (boot) ||
+ p->gnutls_initstage != GNUTLS_STAGE_READY)
+ {
+ deactivate_process (proc);
+ if (NILP (boot))
+ pset_status (p, list2 (Qfailed,
+ build_string ("TLS negotiation failed")));
+ else
+ pset_status (p, list2 (Qfailed, boot));
+ }
+ else
+ {
+ Lisp_Object result = Qt;
+
+ if (!NILP (Ffboundp (Qnsm_verify_connection)))
+ result = call3 (Qnsm_verify_connection,
+ proc,
+ Fplist_get (contact, QChost),
+ Fplist_get (contact, QCservice));
+
+ if (NILP (result))
+ {
+ pset_status (p, list2 (Qfailed,
+ build_string ("The Network Security Manager stopped the connections")));
+ deactivate_process (proc);
+ }
+ else
+ {
+ /* If we cleared the connection wait mask before we did
+ the TLS setup, then we have to say that the process
+ is finally "open" here. */
+ if (! FD_ISSET (p->outfd, &connect_wait_mask))
+ {
+ pset_status (p, Qrun);
+ /* Execute the sentinel here. If we had relied on
+ status_notify to do it later, it will read input
+ from the process before calling the sentinel. */
+ exec_sentinel (proc, build_string ("open\n"));
+ }
+ }
+ }
+ }
+#endif
+
+}
+
+#ifndef HAVE_GETADDRINFO
+static Lisp_Object
+conv_numerical_to_lisp (unsigned char *number, unsigned int length, int port)
+{
+ Lisp_Object address = Fmake_vector (make_number (length + 1), Qnil);
+ register struct Lisp_Vector *p = XVECTOR (address);
+ int i;
+
+ p->contents[length] = make_number (port);
+ for (i = 0; i < length; i++)
+ p->contents[i] = make_number (*(number + i));
+
+ return address;
+}
+#endif
+
+/* Create a network stream/datagram client/server process. Treated
+ exactly like a normal process when reading and writing. Primary
+ differences are in status display and process deletion. A network
+ connection has no PID; you cannot signal it. All you can do is
+ stop/continue it and deactivate/close it via delete-process. */
+
+DEFUN ("make-network-process", Fmake_network_process, Smake_network_process,
+ 0, MANY, 0,
+ doc: /* Create and return a network server or client process.
+
+In Emacs, network connections are represented by process objects, so
+input and output work as for subprocesses and `delete-process' closes
+a network connection. However, a network process has no process id,
+it cannot be signaled, and the status codes are different from normal
+processes.
+
+Arguments are specified as keyword/argument pairs. The following
+arguments are defined:
+
+:name NAME -- NAME is name for process. It is modified if necessary
+to make it unique.
+
+:buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate
+with the process. Process output goes at end of that buffer, unless
+you specify an output stream or filter function to handle the output.
+BUFFER may be also nil, meaning that this process is not associated
+with any buffer.
+
+:host HOST -- HOST is name of the host to connect to, or its IP
address. The symbol `local' specifies the local host. If specified
for a server process, it must be a valid name or address for the local
host, and only clients connecting to that address will be accepted.
is a cons (DECODING . ENCODING), DECODING is used for reading, and
ENCODING is used for writing.
-:nowait BOOL -- If BOOL is non-nil for a stream type client process,
-return without waiting for the connection to complete; instead, the
-sentinel function will be called with second arg matching "open" (if
-successful) or "failed" when the connect completes. Default is to use
-a blocking connect (i.e. wait) for stream type connections.
+:nowait BOOL -- If NOWAIT is non-nil for a stream type client
+process, return without waiting for the connection to complete;
+instead, the sentinel function will be called with second arg matching
+"open" (if successful) or "failed" when the connect completes.
+Default is to use a blocking connect (i.e. wait) for stream type
+connections.
:noquery BOOL -- Query the user unless BOOL is non-nil, and process is
running when Emacs is exited.
:plist PLIST -- Install PLIST as the new process's initial plist.
+:tls-parameters LIST -- is a list that should be supplied if you're
+opening a TLS connection. The first element is the TLS type (either
+`gnutls-x509pki' or `gnutls-anon'), and the remaining elements should
+be a keyword list accepted by gnutls-boot (as returned by
+`gnutls-boot-parameters').
+
:server QLEN -- if QLEN is non-nil, create a server process for the
specified FAMILY, SERVICE, and connection type (stream or datagram).
If QLEN is an integer, it is used as the max. length of the server's
Lisp_Object proc;
Lisp_Object contact;
struct Lisp_Process *p;
-#ifdef HAVE_GETADDRINFO
- struct addrinfo ai, *res, *lres;
- struct addrinfo hints;
+#if defined(HAVE_GETADDRINFO) || defined(HAVE_GETADDRINFO_A)
+ struct addrinfo *hints;
const char *portstring;
char portbuf[128];
-#else /* HAVE_GETADDRINFO */
- struct _emacs_addrinfo
- {
- int ai_family;
- int ai_socktype;
- int ai_protocol;
- int ai_addrlen;
- struct sockaddr *ai_addr;
- struct _emacs_addrinfo *ai_next;
- } ai, *res, *lres;
-#endif /* HAVE_GETADDRINFO */
- struct sockaddr_in address_in;
+#endif
#ifdef HAVE_LOCAL_SOCKETS
struct sockaddr_un address_un;
#endif
- int port;
- int ret = 0;
- int xerrno = 0;
- int s = -1, outch, inch;
- struct gcpro gcpro1;
- ptrdiff_t count = SPECPDL_INDEX ();
- ptrdiff_t count1;
- Lisp_Object colon_address; /* Either QClocal or QCremote. */
+ int port = 0;
Lisp_Object tem;
Lisp_Object name, buffer, host, service, address;
Lisp_Object filter, sentinel;
- bool is_non_blocking_client = 0;
- bool is_server = 0;
- int backlog = 5;
+ Lisp_Object ip_addresses = Qnil;
int socktype;
int family = -1;
+ int ai_protocol = 0;
+#ifdef HAVE_GETADDRINFO_A
+ struct gaicb **dns_requests = NULL;
+#endif
+ ptrdiff_t count = SPECPDL_INDEX ();
if (nargs == 0)
return Qnil;
/* Save arguments for process-contact and clone-process. */
contact = Flist (nargs, args);
- GCPRO1 (contact);
#ifdef WINDOWSNT
/* Ensure socket support is loaded if available. */
else if (EQ (tem, Qdatagram))
socktype = SOCK_DGRAM;
#endif
-#ifdef HAVE_SEQPACKET
- else if (EQ (tem, Qseqpacket))
- socktype = SOCK_SEQPACKET;
-#endif
- else
- error ("Unsupported connection type");
-
- /* :server BOOL */
- tem = Fplist_get (contact, QCserver);
- if (!NILP (tem))
- {
- /* Don't support network sockets when non-blocking mode is
- not available, since a blocked Emacs is not useful. */
- is_server = 1;
- if (TYPE_RANGED_INTEGERP (int, tem))
- backlog = XINT (tem);
- }
-
- /* Make colon_address an alias for :local (server) or :remote (client). */
- colon_address = is_server ? QClocal : QCremote;
-
- /* :nowait BOOL */
- if (!is_server && socktype != SOCK_DGRAM
- && (tem = Fplist_get (contact, QCnowait), !NILP (tem)))
- {
-#ifndef NON_BLOCKING_CONNECT
- error ("Non-blocking connect not supported");
-#else
- is_non_blocking_client = 1;
+#ifdef HAVE_SEQPACKET
+ else if (EQ (tem, Qseqpacket))
+ socktype = SOCK_SEQPACKET;
#endif
- }
+ else
+ error ("Unsupported connection type");
name = Fplist_get (contact, QCname);
buffer = Fplist_get (contact, QCbuffer);
CHECK_STRING (name);
- /* Initialize addrinfo structure in case we don't use getaddrinfo. */
- ai.ai_socktype = socktype;
- ai.ai_protocol = 0;
- ai.ai_next = NULL;
- res = &ai;
-
/* :local ADDRESS or :remote ADDRESS */
- address = Fplist_get (contact, colon_address);
+ tem = Fplist_get (contact, QCserver);
+ if (!NILP (tem))
+ address = Fplist_get (contact, QCremote);
+ else
+ address = Fplist_get (contact, QClocal);
if (!NILP (address))
{
host = service = Qnil;
- if (!(ai.ai_addrlen = get_lisp_to_sockaddr_size (address, &family)))
+ if (!get_lisp_to_sockaddr_size (address, &family))
error ("Malformed :address");
- ai.ai_family = family;
- ai.ai_addr = alloca (ai.ai_addrlen);
- conv_lisp_to_sockaddr (family, address, ai.ai_addr, ai.ai_addrlen);
+
+ ip_addresses = Fcons (address, Qnil);
goto open_socket;
}
else
error ("Unknown address family");
- ai.ai_family = family;
-
/* :service SERVICE -- string, integer (port number), or t (random port). */
service = Fplist_get (contact, QCservice);
/* :host HOST -- hostname, ip address, or 'local for localhost. */
host = Fplist_get (contact, QChost);
- if (!NILP (host))
+ if (NILP (host))
+ {
+ /* The "connection" function gets it bind info from the address we're
+ given, so use this dummy address if nothing is specified. */
+#ifdef HAVE_LOCAL_SOCKETS
+ if (family != AF_LOCAL)
+#endif
+ host = build_string ("127.0.0.1");
+ }
+ else
{
if (EQ (host, Qlocal))
/* Depending on setup, "localhost" may map to different IPv4 and/or
{
if (!NILP (host))
{
- message (":family local ignores the :host \"%s\" property",
- SDATA (host));
+ message (":family local ignores the :host property");
contact = Fplist_put (contact, QChost, Qnil);
host = Qnil;
}
CHECK_STRING (service);
- memset (&address_un, 0, sizeof address_un);
- address_un.sun_family = AF_LOCAL;
if (sizeof address_un.sun_path <= SBYTES (service))
error ("Service name too long");
- lispstpcpy (address_un.sun_path, service);
- ai.ai_addr = (struct sockaddr *) &address_un;
- ai.ai_addrlen = sizeof address_un;
- goto open_socket;
- }
-#endif
-
- /* Slow down polling to every ten seconds.
- Some kernels have a bug which causes retrying connect to fail
- after a connect. Polling can interfere with gethostbyname too. */
-#ifdef POLL_FOR_INPUT
- if (socktype != SOCK_DGRAM)
- {
- record_unwind_protect_void (run_all_atimers);
- bind_polling_period (10);
- }
-#endif
-
-#ifdef HAVE_GETADDRINFO
- /* If we have a host, use getaddrinfo to resolve both host and service.
- Otherwise, use getservbyname to lookup the service. */
- if (!NILP (host))
- {
-
- /* SERVICE can either be a string or int.
- Convert to a C string for later use by getaddrinfo. */
- if (EQ (service, Qt))
- portstring = "0";
- else if (INTEGERP (service))
- {
- sprintf (portbuf, "%"pI"d", XINT (service));
- portstring = portbuf;
- }
- else
- {
- CHECK_STRING (service);
- portstring = SSDATA (service);
- }
-
- immediate_quit = 1;
- QUIT;
- memset (&hints, 0, sizeof (hints));
- hints.ai_flags = 0;
- hints.ai_family = family;
- hints.ai_socktype = socktype;
- hints.ai_protocol = 0;
-
-#ifdef HAVE_RES_INIT
- res_init ();
-#endif
-
- ret = getaddrinfo (SSDATA (host), portstring, &hints, &res);
- if (ret)
-#ifdef HAVE_GAI_STRERROR
- error ("%s/%s %s", SSDATA (host), portstring, gai_strerror (ret));
-#else
- error ("%s/%s getaddrinfo error %d", SSDATA (host), portstring, ret);
-#endif
- immediate_quit = 0;
-
+ ip_addresses = Fcons (service, Qnil);
goto open_socket;
}
-#endif /* HAVE_GETADDRINFO */
-
- /* We end up here if getaddrinfo is not defined, or in case no hostname
- has been specified (e.g. for a local server process). */
-
- if (EQ (service, Qt))
- port = 0;
- else if (INTEGERP (service))
- port = htons ((unsigned short) XINT (service));
- else
- {
- struct servent *svc_info;
- CHECK_STRING (service);
- svc_info = getservbyname (SSDATA (service),
- (socktype == SOCK_DGRAM ? "udp" : "tcp"));
- if (svc_info == 0)
- error ("Unknown service: %s", SDATA (service));
- port = svc_info->s_port;
- }
-
- memset (&address_in, 0, sizeof address_in);
- address_in.sin_family = family;
- address_in.sin_addr.s_addr = INADDR_ANY;
- address_in.sin_port = port;
-
-#ifndef HAVE_GETADDRINFO
- if (!NILP (host))
- {
- struct hostent *host_info_ptr;
-
- /* gethostbyname may fail with TRY_AGAIN, but we don't honor that,
- as it may `hang' Emacs for a very long time. */
- immediate_quit = 1;
- QUIT;
-
-#ifdef HAVE_RES_INIT
- res_init ();
-#endif
-
- host_info_ptr = gethostbyname (SDATA (host));
- immediate_quit = 0;
-
- if (host_info_ptr)
- {
- memcpy (&address_in.sin_addr, host_info_ptr->h_addr,
- host_info_ptr->h_length);
- family = host_info_ptr->h_addrtype;
- address_in.sin_family = family;
- }
- else
- /* Attempt to interpret host as numeric inet address. */
- {
- unsigned long numeric_addr;
- numeric_addr = inet_addr (SSDATA (host));
- if (numeric_addr == -1)
- error ("Unknown host \"%s\"", SDATA (host));
-
- memcpy (&address_in.sin_addr, &numeric_addr,
- sizeof (address_in.sin_addr));
- }
-
- }
-#endif /* not HAVE_GETADDRINFO */
-
- ai.ai_family = family;
- ai.ai_addr = (struct sockaddr *) &address_in;
- ai.ai_addrlen = sizeof address_in;
-
- open_socket:
-
- /* Do this in case we never enter the for-loop below. */
- count1 = SPECPDL_INDEX ();
- s = -1;
-
- for (lres = res; lres; lres = lres->ai_next)
- {
- ptrdiff_t optn;
- int optbits;
-
-#ifdef WINDOWSNT
- retry_connect:
-#endif
-
- s = socket (lres->ai_family, lres->ai_socktype | SOCK_CLOEXEC,
- lres->ai_protocol);
- if (s < 0)
- {
- xerrno = errno;
- continue;
- }
-
-#ifdef DATAGRAM_SOCKETS
- if (!is_server && socktype == SOCK_DGRAM)
- break;
-#endif /* DATAGRAM_SOCKETS */
-
-#ifdef NON_BLOCKING_CONNECT
- if (is_non_blocking_client)
- {
- ret = fcntl (s, F_SETFL, O_NONBLOCK);
- if (ret < 0)
- {
- xerrno = errno;
- emacs_close (s);
- s = -1;
- continue;
- }
- }
-#endif
-
- /* Make us close S if quit. */
- record_unwind_protect_int (close_file_unwind, s);
-
- /* Parse network options in the arg list.
- We simply ignore anything which isn't a known option (including other keywords).
- An error is signaled if setting a known option fails. */
- for (optn = optbits = 0; optn < nargs - 1; optn += 2)
- optbits |= set_socket_option (s, args[optn], args[optn + 1]);
-
- if (is_server)
- {
- /* Configure as a server socket. */
-
- /* SO_REUSEADDR = 1 is default for server sockets; must specify
- explicit :reuseaddr key to override this. */
-#ifdef HAVE_LOCAL_SOCKETS
- if (family != AF_LOCAL)
-#endif
- if (!(optbits & (1 << OPIX_REUSEADDR)))
- {
- int optval = 1;
- if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval))
- report_file_error ("Cannot set reuse option on server socket", Qnil);
- }
-
- if (bind (s, lres->ai_addr, lres->ai_addrlen))
- report_file_error ("Cannot bind server socket", Qnil);
-
-#ifdef HAVE_GETSOCKNAME
- if (EQ (service, Qt))
- {
- struct sockaddr_in sa1;
- socklen_t len1 = sizeof (sa1);
- if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0)
- {
- ((struct sockaddr_in *)(lres->ai_addr))->sin_port = sa1.sin_port;
- service = make_number (ntohs (sa1.sin_port));
- contact = Fplist_put (contact, QCservice, service);
- }
- }
-#endif
-
- if (socktype != SOCK_DGRAM && listen (s, backlog))
- report_file_error ("Cannot listen on server socket", Qnil);
-
- break;
- }
-
- immediate_quit = 1;
- QUIT;
-
- ret = connect (s, lres->ai_addr, lres->ai_addrlen);
- xerrno = errno;
-
- if (ret == 0 || xerrno == EISCONN)
- {
- /* The unwind-protect will be discarded afterwards.
- Likewise for immediate_quit. */
- break;
- }
-
-#ifdef NON_BLOCKING_CONNECT
-#ifdef EINPROGRESS
- if (is_non_blocking_client && xerrno == EINPROGRESS)
- break;
-#else
-#ifdef EWOULDBLOCK
- if (is_non_blocking_client && xerrno == EWOULDBLOCK)
- break;
-#endif
-#endif
-#endif
-
-#ifndef WINDOWSNT
- if (xerrno == EINTR)
- {
- /* Unlike most other syscalls connect() cannot be called
- again. (That would return EALREADY.) The proper way to
- wait for completion is pselect(). */
- int sc;
- socklen_t len;
- fd_set fdset;
- retry_select:
- FD_ZERO (&fdset);
- FD_SET (s, &fdset);
- QUIT;
- sc = pselect (s + 1, NULL, &fdset, NULL, NULL, NULL);
- if (sc == -1)
- {
- if (errno == EINTR)
- goto retry_select;
- else
- report_file_error ("Failed select", Qnil);
- }
- eassert (sc > 0);
-
- len = sizeof xerrno;
- eassert (FD_ISSET (s, &fdset));
- if (getsockopt (s, SOL_SOCKET, SO_ERROR, &xerrno, &len) < 0)
- report_file_error ("Failed getsockopt", Qnil);
- if (xerrno)
- report_file_errno ("Failed connect", Qnil, xerrno);
- break;
- }
-#endif /* !WINDOWSNT */
-
- immediate_quit = 0;
-
- /* Discard the unwind protect closing S. */
- specpdl_ptr = specpdl + count1;
- emacs_close (s);
- s = -1;
-
-#ifdef WINDOWSNT
- if (xerrno == EINTR)
- goto retry_connect;
#endif
+
+ /* Slow down polling to every ten seconds.
+ Some kernels have a bug which causes retrying connect to fail
+ after a connect. Polling can interfere with gethostbyname too. */
+#ifdef POLL_FOR_INPUT
+ if (socktype != SOCK_DGRAM)
+ {
+ record_unwind_protect_void (run_all_atimers);
+ bind_polling_period (10);
}
+#endif
- if (s >= 0)
+#if defined (HAVE_GETADDRINFO) || defined (HAVE_GETADDRINFO_A)
+ if (!NILP (host))
{
-#ifdef DATAGRAM_SOCKETS
- if (socktype == SOCK_DGRAM)
+
+ /* SERVICE can either be a string or int.
+ Convert to a C string for later use by getaddrinfo. */
+ if (EQ (service, Qt))
+ portstring = "0";
+ else if (INTEGERP (service))
{
- if (datagram_address[s].sa)
- emacs_abort ();
- datagram_address[s].sa = xmalloc (lres->ai_addrlen);
- datagram_address[s].len = lres->ai_addrlen;
- if (is_server)
- {
- Lisp_Object remote;
- memset (datagram_address[s].sa, 0, lres->ai_addrlen);
- if (remote = Fplist_get (contact, QCremote), !NILP (remote))
- {
- int rfamily, rlen;
- rlen = get_lisp_to_sockaddr_size (remote, &rfamily);
- if (rlen != 0 && rfamily == lres->ai_family
- && rlen == lres->ai_addrlen)
- conv_lisp_to_sockaddr (rfamily, remote,
- datagram_address[s].sa, rlen);
- }
- }
- else
- memcpy (datagram_address[s].sa, lres->ai_addr, lres->ai_addrlen);
+ sprintf (portbuf, "%"pI"d", XINT (service));
+ portstring = portbuf;
}
-#endif
- contact = Fplist_put (contact, colon_address,
- conv_sockaddr_to_lisp (lres->ai_addr, lres->ai_addrlen));
-#ifdef HAVE_GETSOCKNAME
- if (!is_server)
+ else
{
- struct sockaddr_in sa1;
- socklen_t len1 = sizeof (sa1);
- if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0)
- contact = Fplist_put (contact, QClocal,
- conv_sockaddr_to_lisp ((struct sockaddr *)&sa1, len1));
+ CHECK_STRING (service);
+ portstring = SSDATA (service);
}
-#endif
+
+ hints = xzalloc (sizeof (struct addrinfo));
+ hints->ai_flags = 0;
+ hints->ai_family = family;
+ hints->ai_socktype = socktype;
+ hints->ai_protocol = 0;
}
- immediate_quit = 0;
+#endif
+
+#ifdef HAVE_GETADDRINFO_A
+ if (!NILP (Fplist_get (contact, QCnowait)) &&
+ !NILP (host))
+ {
+ int ret;
+
+ printf("Async DNS for '%s'\n", SSDATA (host));
+ dns_requests = xmalloc (sizeof (struct gaicb*));
+ dns_requests[0] = xmalloc (sizeof (struct gaicb));
+ dns_requests[0]->ar_name = strdup (SSDATA (host));
+ dns_requests[0]->ar_service = strdup (portstring);
+ dns_requests[0]->ar_request = hints;
+ dns_requests[0]->ar_result = NULL;
+
+ ret = getaddrinfo_a (GAI_NOWAIT, dns_requests, 1, NULL);
+ if (ret)
+ error ("%s/%s getaddrinfo_a error %d", SSDATA (host), portstring, ret);
+
+ goto open_socket;
+ }
+#endif /* HAVE_GETADDRINFO_A */
#ifdef HAVE_GETADDRINFO
- if (res != &ai)
+ /* If we have a host, use getaddrinfo to resolve both host and service.
+ Otherwise, use getservbyname to lookup the service. */
+
+ if (!NILP (host))
{
- block_input ();
+ struct addrinfo *res, *lres;
+ int ret;
+
+ immediate_quit = 1;
+ QUIT;
+
+#ifdef HAVE_RES_INIT
+ res_init ();
+#endif
+
+ ret = getaddrinfo (SSDATA (host), portstring, hints, &res);
+ if (ret)
+#ifdef HAVE_GAI_STRERROR
+ error ("%s/%s %s", SSDATA (host), portstring, gai_strerror (ret));
+#else
+ error ("%s/%s getaddrinfo error %d", SSDATA (host), portstring, ret);
+#endif
+ immediate_quit = 0;
+
+ for (lres = res; lres; lres = lres->ai_next)
+ {
+ ip_addresses = Fcons (conv_sockaddr_to_lisp
+ (lres->ai_addr, lres->ai_addrlen),
+ ip_addresses);
+ ai_protocol = lres->ai_protocol;
+ }
+
+ ip_addresses = Fnreverse (ip_addresses);
+
freeaddrinfo (res);
- unblock_input ();
+ xfree (hints);
+
+ goto open_socket;
}
-#endif
+#endif /* HAVE_GETADDRINFO */
- if (s < 0)
+ /* We end up here if getaddrinfo is not defined, or in case no hostname
+ has been specified (e.g. for a local server process). */
+
+ if (EQ (service, Qt))
+ port = 0;
+ else if (INTEGERP (service))
+ port = (unsigned short) XINT (service);
+ else
{
- /* If non-blocking got this far - and failed - assume non-blocking is
- not supported after all. This is probably a wrong assumption, but
- the normal blocking calls to open-network-stream handles this error
- better. */
- if (is_non_blocking_client)
- return Qnil;
+ struct servent *svc_info;
+ CHECK_STRING (service);
+ svc_info = getservbyname (SSDATA (service),
+ (socktype == SOCK_DGRAM ? "udp" : "tcp"));
+ if (svc_info == 0)
+ error ("Unknown service: %s", SDATA (service));
+ port = ntohs (svc_info->s_port);
+ }
+
+#ifndef HAVE_GETADDRINFO
+ if (!NILP (host))
+ {
+ struct hostent *host_info_ptr;
+
+ /* gethostbyname may fail with TRY_AGAIN, but we don't honor that,
+ as it may `hang' Emacs for a very long time. */
+ immediate_quit = 1;
+ QUIT;
+
+#ifdef HAVE_RES_INIT
+ res_init ();
+#endif
+
+ host_info_ptr = gethostbyname ((const char *) SDATA (host));
+ immediate_quit = 0;
+
+ if (host_info_ptr)
+ {
+ ip_addresses = Fcons (conv_numerical_to_lisp
+ ((unsigned char *) host_info_ptr->h_addr,
+ host_info_ptr->h_length,
+ port),
+ Qnil);
+ }
+ else
+ /* Attempt to interpret host as numeric inet address. This
+ only works for IPv4 addresses. */
+ {
+ unsigned long numeric_addr = inet_addr (SSDATA (host));
+
+ if (numeric_addr == -1)
+ error ("Unknown host \"%s\"", SDATA (host));
+
+ ip_addresses = Fcons (conv_numerical_to_lisp
+ ((unsigned char *) &numeric_addr, 4, port),
+ Qnil);
+ }
- report_file_errno ((is_server
- ? "make server process failed"
- : "make client process failed"),
- contact, xerrno);
}
+#endif /* not HAVE_GETADDRINFO */
- inch = s;
- outch = s;
+ open_socket:
if (!NILP (buffer))
buffer = Fget_buffer_create (buffer);
proc = make_process (name);
-
- chan_process[inch] = proc;
-
- fcntl (inch, F_SETFL, O_NONBLOCK);
-
p = XPROCESS (proc);
-
pset_childp (p, contact);
pset_plist (p, Fcopy_sequence (Fplist_get (contact, QCplist)));
pset_type (p, Qnetwork);
if ((tem = Fplist_get (contact, QCstop), !NILP (tem)))
pset_command (p, Qt);
p->pid = 0;
-
- p->open_fd[SUBPROCESS_STDIN] = inch;
- p->infd = inch;
- p->outfd = outch;
-
- /* Discard the unwind protect for closing S, if any. */
- specpdl_ptr = specpdl + count1;
-
- /* Unwind bind_polling_period and request_sigio. */
- unbind_to (count, Qnil);
-
- if (is_server && socktype != SOCK_DGRAM)
- pset_status (p, Qlisten);
-
- /* Make the process marker point into the process buffer (if any). */
- if (BUFFERP (buffer))
- set_marker_both (p->mark, buffer,
- BUF_ZV (XBUFFER (buffer)),
- BUF_ZV_BYTE (XBUFFER (buffer)));
-
-#ifdef NON_BLOCKING_CONNECT
- if (is_non_blocking_client)
- {
- /* We may get here if connect did succeed immediately. However,
- in that case, we still need to signal this like a non-blocking
- connection. */
- pset_status (p, Qconnect);
- if (!FD_ISSET (inch, &connect_wait_mask))
- {
- FD_SET (inch, &connect_wait_mask);
- FD_SET (inch, &write_mask);
- num_pending_connects++;
- }
- }
- else
+ p->backlog = 5;
+ p->is_non_blocking_client = 0;
+ p->is_server = 0;
+ p->port = port;
+ p->socktype = socktype;
+ p->ai_protocol = ai_protocol;
+#ifdef HAVE_GETADDRINFO_A
+ p->dns_requests = NULL;
+#endif
+#ifdef HAVE_GNUTLS
+ tem = Fplist_get (contact, QCtls_parameters);
+ CHECK_LIST (tem);
+ p->gnutls_boot_parameters = tem;
#endif
- /* A server may have a client filter setting of Qt, but it must
- still listen for incoming connects unless it is stopped. */
- if ((!EQ (p->filter, Qt) && !EQ (p->command, Qt))
- || (EQ (p->status, Qlisten) && NILP (p->command)))
- {
- FD_SET (inch, &input_wait_mask);
- FD_SET (inch, &non_keyboard_wait_mask);
- }
-
- if (inch > max_process_desc)
- max_process_desc = inch;
-
- tem = Fplist_member (contact, QCcoding);
- if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem))))
- tem = Qnil; /* No error message (too late!). */
-
- {
- /* Setup coding systems for communicating with the network stream. */
- struct gcpro gcpro1;
- /* Qt denotes we have not yet called Ffind_operation_coding_system. */
- Lisp_Object coding_systems = Qt;
- Lisp_Object val;
- if (!NILP (tem))
- {
- val = XCAR (XCDR (tem));
- if (CONSP (val))
- val = XCAR (val);
- }
- else if (!NILP (Vcoding_system_for_read))
- val = Vcoding_system_for_read;
- else if ((!NILP (buffer) && NILP (BVAR (XBUFFER (buffer), enable_multibyte_characters)))
- || (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters))))
- /* We dare not decode end-of-line format by setting VAL to
- Qraw_text, because the existing Emacs Lisp libraries
- assume that they receive bare code including a sequence of
- CR LF. */
- val = Qnil;
- else
- {
- if (NILP (host) || NILP (service))
- coding_systems = Qnil;
- else
- {
- GCPRO1 (proc);
- coding_systems = CALLN (Ffind_operation_coding_system,
- Qopen_network_stream, name, buffer,
- host, service);
- UNGCPRO;
- }
- if (CONSP (coding_systems))
- val = XCAR (coding_systems);
- else if (CONSP (Vdefault_process_coding_system))
- val = XCAR (Vdefault_process_coding_system);
- else
- val = Qnil;
- }
- pset_decode_coding_system (p, val);
+ set_network_socket_coding_system (proc);
- if (!NILP (tem))
- {
- val = XCAR (XCDR (tem));
- if (CONSP (val))
- val = XCDR (val);
- }
- else if (!NILP (Vcoding_system_for_write))
- val = Vcoding_system_for_write;
- else if (NILP (BVAR (current_buffer, enable_multibyte_characters)))
- val = Qnil;
- else
- {
- if (EQ (coding_systems, Qt))
- {
- if (NILP (host) || NILP (service))
- coding_systems = Qnil;
- else
- {
- GCPRO1 (proc);
- coding_systems = CALLN (Ffind_operation_coding_system,
- Qopen_network_stream, name, buffer,
- host, service);
- UNGCPRO;
- }
- }
- if (CONSP (coding_systems))
- val = XCDR (coding_systems);
- else if (CONSP (Vdefault_process_coding_system))
- val = XCDR (Vdefault_process_coding_system);
- else
- val = Qnil;
- }
- pset_encode_coding_system (p, val);
- }
- setup_process_coding_systems (proc);
+ unbind_to (count, Qnil);
- pset_decoding_buf (p, empty_unibyte_string);
- p->decoding_carryover = 0;
- pset_encoding_buf (p, empty_unibyte_string);
+ /* :server BOOL */
+ tem = Fplist_get (contact, QCserver);
+ if (!NILP (tem))
+ {
+ /* Don't support network sockets when non-blocking mode is
+ not available, since a blocked Emacs is not useful. */
+ p->is_server = 1;
+ if (TYPE_RANGED_INTEGERP (int, tem))
+ p->backlog = XINT (tem);
+ }
- p->inherit_coding_system_flag
- = !(!NILP (tem) || NILP (buffer) || !inherit_process_coding_system);
+ /* :nowait BOOL */
+ if (!p->is_server && socktype != SOCK_DGRAM
+ && (tem = Fplist_get (contact, QCnowait), !NILP (tem)))
+ {
+#ifndef NON_BLOCKING_CONNECT
+ error ("Non-blocking connect not supported");
+#else
+ p->is_non_blocking_client = 1;
+#endif
+ }
+
+#ifdef HAVE_GETADDRINFO_A
+ /* If we're doing async address resolution, the list of addresses
+ here will be nil, so we postpone connecting to the server. */
+ if (!p->is_server && NILP (ip_addresses))
+ {
+ p->dns_requests = dns_requests;
+ p->status = Qconnect;
+ dns_processes = Fcons (proc, dns_processes);
+ }
+ else
+ {
+ connect_network_socket (proc, ip_addresses);
+ }
+#else /* HAVE_GETADDRINFO_A */
+ connect_network_socket (proc, ip_addresses);
+#endif
- UNGCPRO;
return proc;
}
emacs_gnutls_deinit (proc);
#endif /* HAVE_GNUTLS */
-#ifdef ADAPTIVE_READ_BUFFERING
if (p->read_output_delay > 0)
{
if (--process_output_delay_count < 0)
p->read_output_delay = 0;
p->read_output_skip = 0;
}
-#endif
/* Beware SIGCHLD hereabouts. */
exec_sentinel (proc, concat3 (open_from, host_string, nl));
}
+#ifdef HAVE_GETADDRINFO_A
+static Lisp_Object
+check_for_dns (Lisp_Object proc)
+{
+ struct Lisp_Process *p = XPROCESS (proc);
+ Lisp_Object ip_addresses = Qnil;
+ int ret = 0;
+
+ /* Sanity check. */
+ if (! p->dns_requests)
+ return Qnil;
+
+ /* This process should not already be connected (or killed). */
+ if (!EQ (p->status, Qconnect))
+ return Qnil;
+
+ ret = gai_error (p->dns_requests[0]);
+ if (ret == EAI_INPROGRESS)
+ return Qt;
+
+ /* We got a response. */
+ if (ret == 0)
+ {
+ struct addrinfo *res;
+
+ for (res = p->dns_requests[0]->ar_result; res; res = res->ai_next)
+ {
+ ip_addresses = Fcons (conv_sockaddr_to_lisp
+ (res->ai_addr, res->ai_addrlen),
+ ip_addresses);
+ }
+
+ ip_addresses = Fnreverse (ip_addresses);
+ freeaddrinfo (p->dns_requests[0]->ar_result);
+ }
+ /* The DNS lookup failed. */
+ else
+ {
+ deactivate_process (proc);
+ pset_status (p, (list2
+ (Qfailed,
+ concat3 (build_string ("Name lookup of "),
+ build_string (p->dns_requests[0]->ar_name),
+ build_string (" failed")))));
+ }
+
+ xfree ((void *)p->dns_requests[0]->ar_request);
+ xfree ((void *)p->dns_requests[0]->ar_name);
+ xfree ((void *)p->dns_requests[0]->ar_service);
+ xfree (p->dns_requests[0]);
+ xfree (p->dns_requests);
+ p->dns_requests = NULL;
+
+ return ip_addresses;
+}
+
+#endif /* HAVE_GETADDRINFO_A */
+
+static void
+wait_for_socket_fds (Lisp_Object process, char *name)
+{
+ while (XPROCESS (process)->infd < 0 &&
+ EQ (XPROCESS (process)->status, Qconnect))
+ {
+ printf("Waiting for socket from %s...\n", name);
+ wait_reading_process_output (0, 20 * 1000 * 1000, 0, 0, Qnil, NULL, 0);
+ }
+}
+
+static void
+wait_while_connecting (Lisp_Object process)
+{
+ while (EQ (XPROCESS (process)->status, Qconnect))
+ {
+ printf("Waiting for connection...\n");
+ wait_reading_process_output (0, 20 * 1000 * 1000, 0, 0, Qnil, NULL, 0);
+ }
+}
+
+static void
+wait_for_tls_negotiation (Lisp_Object process)
+{
+#ifdef HAVE_GNUTLS
+ while (EQ (XPROCESS (process)->status, Qconnect) &&
+ !NILP (XPROCESS (process)->gnutls_boot_parameters))
+ {
+ printf("Waiting for TLS...\n");
+ wait_reading_process_output (0, 20 * 1000 * 1000, 0, 0, Qnil, NULL, 0);
+ }
+#endif
+}
+
/* This variable is different from waiting_for_input in keyboard.c.
It is used to communicate to a lisp process-filter/sentinel (via the
function Fwaiting_for_user_input_p below) whether Emacs was waiting
bool no_avail;
int xerrno;
Lisp_Object proc;
- struct timespec timeout, end_time;
- int got_some_input = -1;
+ struct timespec timeout, end_time, timer_delay;
+ struct timespec got_output_end_time = invalid_timespec ();
+ enum { MINIMUM = -1, TIMEOUT, INFINITY } wait;
+ int got_some_output = -1;
ptrdiff_t count = SPECPDL_INDEX ();
+ /* Close to the current time if known, an invalid timespec otherwise. */
+ struct timespec now = invalid_timespec ();
+
FD_ZERO (&Available);
FD_ZERO (&Writeok);
waiting_for_user_input_p);
waiting_for_user_input_p = read_kbd;
- if (time_limit < 0)
- {
- time_limit = 0;
- nsecs = -1;
- }
- else if (TYPE_MAXIMUM (time_t) < time_limit)
+ if (TYPE_MAXIMUM (time_t) < time_limit)
time_limit = TYPE_MAXIMUM (time_t);
- /* Since we may need to wait several times,
- compute the absolute time to return at. */
- if (time_limit || nsecs > 0)
+ if (time_limit < 0 || nsecs < 0)
+ wait = MINIMUM;
+ else if (time_limit > 0 || nsecs > 0)
{
- timeout = make_timespec (time_limit, nsecs);
- end_time = timespec_add (current_timespec (), timeout);
+ wait = TIMEOUT;
+ now = current_timespec ();
+ end_time = timespec_add (now, make_timespec (time_limit, nsecs));
}
+ else
+ wait = INFINITY;
while (1)
{
- bool timeout_reduced_for_timers = false;
+ bool process_skipped = false;
/* If calling from keyboard input, do not quit
since we want to return C-g as an input character.
if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell)))
break;
- /* After reading input, vacuum up any leftovers without waiting. */
- if (0 <= got_some_input)
- nsecs = -1;
-
- /* Compute time from now till when time limit is up. */
- /* Exit if already run out. */
- if (nsecs < 0)
+#ifdef HAVE_GETADDRINFO_A
+ if (!NILP (dns_processes))
{
- /* A negative timeout means
- gobble output available now
- but don't wait at all. */
+ Lisp_Object dns_list = dns_processes, dns, ip_addresses,
+ answers = Qnil, answer, new = Qnil;
+ struct Lisp_Process *p;
+
+ /* This is programmed in a somewhat awkward fashion because
+ calling connect_network_socket might make us end up back
+ here again, and we would have a race condition with
+ segfaults. So first go through all pending requests and see
+ whether we got any answers. */
+ while (!NILP (dns_list))
+ {
+ dns = XCAR (dns_list);
+ dns_list = XCDR (dns_list);
+ p = XPROCESS (dns);
+ if (p && p->dns_requests)
+ {
+ if (! wait_proc || p == wait_proc)
+ {
+ ip_addresses = check_for_dns (dns);
+ if (EQ (ip_addresses, Qt))
+ new = Fcons (dns, new);
+ else
+ answers = Fcons (Fcons (dns, ip_addresses), answers);
+ }
+ else
+ new = Fcons (dns, new);
+ }
+ }
- timeout = make_timespec (0, 0);
+ /* Replace with the list of DNS requests still not responded
+ to. */
+ dns_processes = new;
+
+ /* Then continue the connection for the successful
+ requests. */
+ while (!NILP (answers))
+ {
+ answer = XCAR (answers);
+ answers = XCDR (answers);
+ if (!NILP (XCDR (answer)))
+ connect_network_socket (XCAR (answer), XCDR (answer));
+ }
}
- else if (time_limit || nsecs > 0)
+#endif /* HAVE_GETADDRINFO_A */
+
+ /* Compute time from now till when time limit is up. */
+ /* Exit if already run out. */
+ if (wait == TIMEOUT)
{
- struct timespec now = current_timespec ();
+ if (!timespec_valid_p (now))
+ now = current_timespec ();
if (timespec_cmp (end_time, now) <= 0)
break;
timeout = timespec_sub (end_time, now);
}
else
- {
- timeout = make_timespec (100000, 0);
- }
+ timeout = make_timespec (wait < TIMEOUT ? 0 : 100000, 0);
/* Normally we run timers here.
But not if wait_for_cell; in those cases,
if (NILP (wait_for_cell)
&& just_wait_proc >= 0)
{
- struct timespec timer_delay;
-
do
{
unsigned old_timers_run = timers_run;
&& requeued_events_pending_p ())
break;
- /* A negative timeout means do not wait at all. */
- if (nsecs >= 0)
- {
- if (timespec_valid_p (timer_delay))
- {
- if (timespec_cmp (timer_delay, timeout) < 0)
- {
- timeout = timer_delay;
- timeout_reduced_for_timers = true;
- }
- }
- else
- {
- /* This is so a breakpoint can be put here. */
- wait_reading_process_output_1 ();
- }
- }
- }
+ /* This is so a breakpoint can be put here. */
+ if (!timespec_valid_p (timer_delay))
+ wait_reading_process_output_1 ();
+ }
/* Cause C-g and alarm signals to take immediate action,
and cause input available signals to zero out timeout.
/* It's okay for us to do this and then continue with
the loop, since timeout has already been zeroed out. */
clear_waiting_for_input ();
- got_some_input = status_notify (NULL, wait_proc);
+ got_some_output = status_notify (NULL, wait_proc);
if (do_display) redisplay_preserve_echo_area (13);
}
}
if (wait_proc && wait_proc->raw_status_new)
update_status (wait_proc);
if (wait_proc
- && wait_proc->infd >= 0
&& ! EQ (wait_proc->status, Qrun)
&& ! EQ (wait_proc->status, Qconnect))
{
bool read_some_bytes = false;
clear_waiting_for_input ();
- XSETPROCESS (proc, wait_proc);
- /* Read data from the process, until we exhaust it. */
- while (true)
+ /* If data can be read from the process, do so until exhausted. */
+ if (wait_proc->infd >= 0)
{
- int nread = read_process_output (proc, wait_proc->infd);
- if (nread < 0)
+ XSETPROCESS (proc, wait_proc);
+
+ while (true)
{
- if (errno == EIO || errno == EAGAIN)
- break;
+ int nread = read_process_output (proc, wait_proc->infd);
+ if (nread < 0)
+ {
+ if (errno == EIO || errno == EAGAIN)
+ break;
#ifdef EWOULDBLOCK
- if (errno == EWOULDBLOCK)
- break;
+ if (errno == EWOULDBLOCK)
+ break;
#endif
- }
- else
- {
- if (got_some_input < nread)
- got_some_input = nread;
- if (nread == 0)
- break;
- read_some_bytes = true;
+ }
+ else
+ {
+ if (got_some_output < nread)
+ got_some_output = nread;
+ if (nread == 0)
+ break;
+ read_some_bytes = true;
+ }
}
}
+
if (read_some_bytes && do_display)
redisplay_preserve_echo_area (10);
no_avail = 1;
FD_ZERO (&Available);
}
-
- if (!no_avail)
+ else
{
-
-#ifdef ADAPTIVE_READ_BUFFERING
/* Set the timeout for adaptive read buffering if any
process has non-zero read_output_skip and non-zero
read_output_delay, and we are not reading output for a
Vprocess_adaptive_read_buffering is nil. */
if (process_output_skip && check_delay > 0)
{
- int nsecs = timeout.tv_nsec;
- if (timeout.tv_sec > 0 || nsecs > READ_OUTPUT_DELAY_MAX)
- nsecs = READ_OUTPUT_DELAY_MAX;
+ int adaptive_nsecs = timeout.tv_nsec;
+ if (timeout.tv_sec > 0 || adaptive_nsecs > READ_OUTPUT_DELAY_MAX)
+ adaptive_nsecs = READ_OUTPUT_DELAY_MAX;
for (channel = 0; check_delay > 0 && channel <= max_process_desc; channel++)
{
proc = chan_process[channel];
if (!XPROCESS (proc)->read_output_skip)
continue;
FD_CLR (channel, &Available);
+ process_skipped = true;
XPROCESS (proc)->read_output_skip = 0;
- if (XPROCESS (proc)->read_output_delay < nsecs)
- nsecs = XPROCESS (proc)->read_output_delay;
+ if (XPROCESS (proc)->read_output_delay < adaptive_nsecs)
+ adaptive_nsecs = XPROCESS (proc)->read_output_delay;
}
}
- timeout = make_timespec (0, nsecs);
+ timeout = make_timespec (0, adaptive_nsecs);
process_output_skip = 0;
}
-#endif
+
+ /* If we've got some output and haven't limited our timeout
+ with adaptive read buffering, limit it. */
+ if (got_some_output > 0 && !process_skipped
+ && (timeout.tv_sec
+ || timeout.tv_nsec > READ_OUTPUT_DELAY_INCREMENT))
+ timeout = make_timespec (0, READ_OUTPUT_DELAY_INCREMENT);
+
+
+ if (NILP (wait_for_cell) && just_wait_proc >= 0
+ && timespec_valid_p (timer_delay)
+ && timespec_cmp (timer_delay, timeout) < 0)
+ {
+ if (!timespec_valid_p (now))
+ now = current_timespec ();
+ struct timespec timeout_abs = timespec_add (now, timeout);
+ if (!timespec_valid_p (got_output_end_time)
+ || timespec_cmp (timeout_abs, got_output_end_time) < 0)
+ got_output_end_time = timeout_abs;
+ timeout = timer_delay;
+ }
+ else
+ got_output_end_time = invalid_timespec ();
+
+ /* NOW can become inaccurate if time can pass during pselect. */
+ if (timeout.tv_sec > 0 || timeout.tv_nsec > 0)
+ now = invalid_timespec ();
#if defined (HAVE_NS)
nfds = ns_select
data is available in the buffers manually. */
if (nfds == 0)
{
+ fd_set tls_available;
+ int set = 0;
+
+ FD_ZERO (&tls_available);
if (! wait_proc)
{
/* We're not waiting on a specific process, so loop
{
nfds++;
eassert (p->infd == channel);
- FD_SET (p->infd, &Available);
+ FD_SET (p->infd, &tls_available);
+ set++;
}
}
}
nfds = 1;
eassert (0 <= wait_proc->infd);
/* Set to Available. */
- FD_SET (wait_proc->infd, &Available);
+ FD_SET (wait_proc->infd, &tls_available);
+ set++;
}
}
+ if (set)
+ Available = tls_available;
}
#endif
}
/* If we woke up due to SIGWINCH, actually change size now. */
do_pending_window_change (0);
- if ((time_limit || nsecs) && nfds == 0 && ! timeout_reduced_for_timers)
- /* We waited the full specified time, so return now. */
- break;
+ if (nfds == 0)
+ {
+ /* Exit the main loop if we've passed the requested timeout,
+ or aren't skipping processes and got some output and
+ haven't lowered our timeout due to timers or SIGIO and
+ have waited a long amount of time due to repeated
+ timers. */
+ if (wait < TIMEOUT)
+ break;
+ struct timespec cmp_time
+ = (wait == TIMEOUT
+ ? end_time
+ : (!process_skipped && got_some_output > 0
+ && (timeout.tv_sec > 0 || timeout.tv_nsec > 0))
+ ? got_output_end_time
+ : invalid_timespec ());
+ if (timespec_valid_p (cmp_time))
+ {
+ now = current_timespec ();
+ if (timespec_cmp (cmp_time, now) <= 0)
+ break;
+ }
+ }
+
if (nfds < 0)
{
if (xerrno == EINTR)
buffered-ahead character if we have one. */
nread = read_process_output (proc, channel);
- if ((!wait_proc || wait_proc == XPROCESS (proc)) && got_some_input < nread)
- got_some_input = nread;
+ if ((!wait_proc || wait_proc == XPROCESS (proc))
+ && got_some_output < nread)
+ got_some_output = nread;
if (nread > 0)
{
+ /* Vacuum up any leftovers without waiting. */
+ if (wait_proc == XPROCESS (proc))
+ wait = MINIMUM;
/* Since read_process_output can run a filter,
which can call accept-process-output,
don't try to read from any other processes
available now and a closed pipe.
With luck, a closed pipe will be accompanied by
subprocess termination and SIGCHLD. */
- else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc))
+ else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)
+ && !PIPECONN_P (proc))
;
#endif
#ifdef HAVE_PTYS
#endif /* HAVE_PTYS */
/* If we can detect process termination, don't consider the
process gone just because its pipe is closed. */
- else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc))
+ else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)
+ && !PIPECONN_P (proc))
;
+ else if (nread == 0 && PIPECONN_P (proc))
+ {
+ /* Preserve status of processes already terminated. */
+ XPROCESS (proc)->tick = ++process_tick;
+ deactivate_process (proc);
+ if (EQ (XPROCESS (proc)->status, Qrun))
+ pset_status (XPROCESS (proc),
+ list2 (Qexit, make_number (0)));
+ }
else
{
/* Preserve status of processes already terminated. */
}
else
{
- pset_status (p, Qrun);
- /* Execute the sentinel here. If we had relied on
- status_notify to do it later, it will read input
- from the process before calling the sentinel. */
- exec_sentinel (proc, build_string ("open\n"));
+ if (NILP (p->gnutls_boot_parameters))
+ {
+ pset_status (p, Qrun);
+ /* Execute the sentinel here. If we had relied on
+ status_notify to do it later, it will read input
+ from the process before calling the sentinel. */
+ exec_sentinel (proc, build_string ("open\n"));
+ }
+
if (0 <= p->infd && !EQ (p->filter, Qt)
&& !EQ (p->command, Qt))
{
QUIT;
}
- return got_some_input;
+ return got_some_output;
}
\f
/* Given a list (FUNCTION ARGS...), apply FUNCTION to the ARGS. */
#endif
nbytes = emacs_read (channel, chars + carryover + buffered,
readmax - buffered);
-#ifdef ADAPTIVE_READ_BUFFERING
if (nbytes > 0 && p->adaptive_read_buffering)
{
int delay = p->read_output_delay;
process_output_skip = 1;
}
}
-#endif
nbytes += buffered;
nbytes += buffered && nbytes <= 0;
}
bool outer_running_asynch_code = running_asynch_code;
int waiting = waiting_for_user_input_p;
- /* No need to gcpro these, because all we do with them later
- is test them for EQness, and none of them should be a string. */
#if 0
Lisp_Object obuffer, okeymap;
XSETBUFFER (obuffer, current_buffer);
ssize_t rv;
struct coding_system *coding;
+ if (NETCONN_P (proc)) {
+ wait_while_connecting (proc);
+ wait_for_tls_negotiation (proc);
+ }
+
if (p->raw_status_new)
update_status (p);
if (! EQ (p->status, Qrun))
#endif
written = emacs_write_sig (outfd, cur_buf, cur_len);
rv = (written ? 0 : -1);
-#ifdef ADAPTIVE_READ_BUFFERING
if (p->read_output_delay > 0
&& p->adaptive_read_buffering == 1)
{
process_output_delay_count--;
p->read_output_skip = 0;
}
-#endif
}
if (rv < 0)
if (XINT (start) < GPT && XINT (end) > GPT)
move_gap_both (XINT (start), start_byte);
+ if (NETCONN_P (proc))
+ wait_while_connecting (proc);
+
send_process (proc, (char *) BYTE_POS_ADDR (start_byte),
end_byte - start_byte, Fcurrent_buffer ());
Lisp_Object proc;
CHECK_STRING (string);
proc = get_process (process);
+
send_process (proc, SSDATA (string),
SBYTES (string), string);
return Qnil;
traffic. */)
(Lisp_Object process, Lisp_Object current_group)
{
- if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process)))
+ if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process)
+ || PIPECONN_P (process)))
{
struct Lisp_Process *p;
traffic. */)
(Lisp_Object process, Lisp_Object current_group)
{
- if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process)))
+ if (PROCESSP (process) && (NETCONN_P (process) || SERIALCONN_P (process)
+ || PIPECONN_P (process)))
{
struct Lisp_Process *p;
{
Lisp_Object process_number
= string_to_number (SSDATA (process), 10, 1);
- if (INTEGERP (process_number) || FLOATP (process_number))
+ if (NUMBERP (process_number))
tem = process_number;
}
process = tem;
struct coding_system *coding = NULL;
int outfd;
- if (DATAGRAM_CONN_P (process))
+ proc = get_process (process);
+
+ if (NETCONN_P (proc))
+ wait_while_connecting (proc);
+
+ if (DATAGRAM_CONN_P (proc))
return process;
- proc = get_process (process);
+
outfd = XPROCESS (proc)->outfd;
if (outfd >= 0)
coding = proc_encode_coding_system[outfd];
if (inhibit_sentinels)
return;
- /* No need to gcpro these, because all we do with them later
- is test them for EQness, and none of them should be a string. */
odeactivate = Vdeactivate_mark;
#if 0
Lisp_Object obuffer, okeymap;
{
Lisp_Object proc;
Lisp_Object tail, msg;
- struct gcpro gcpro1, gcpro2;
- int got_some_input = -1;
+ int got_some_output = -1;
tail = Qnil;
msg = Qnil;
- /* We need to gcpro tail; if read_process_output calls a filter
- which deletes a process and removes the cons to which tail points
- from Vprocess_alist, and then causes a GC, tail is an unprotected
- reference. */
- GCPRO2 (tail, msg);
/* Set this now, so that if new processes are created by sentinels
that we run, we get called again to handle their status changes. */
&& p != deleting_process)
{
int nread = read_process_output (proc, p->infd);
- if (got_some_input < nread)
- got_some_input = nread;
+ if ((!wait_proc || wait_proc == XPROCESS (proc))
+ && got_some_output < nread)
+ got_some_output = nread;
if (nread <= 0)
break;
}
p->update_tick = p->tick;
/* Now output the message suitably. */
exec_sentinel (proc, msg);
+ if (BUFFERP (p->buffer))
+ /* In case it uses %s in mode-line-format. */
+ bset_update_mode_line (XBUFFER (p->buffer));
}
} /* end for */
- update_mode_lines = 24; /* In case buffers use %s in mode-line-format. */
- UNGCPRO;
- return got_some_input;
+ return got_some_output;
}
DEFUN ("internal-default-process-sentinel", Finternal_default_process_sentinel,
register struct Lisp_Process *p;
CHECK_PROCESS (process);
+
+ if (NETCONN_P (process))
+ wait_for_socket_fds (process, "set-process-coding-system");
+
p = XPROCESS (process);
+
if (p->infd < 0)
error ("Input file descriptor of %s closed", SDATA (p->name));
if (p->outfd < 0)
register struct Lisp_Process *p;
CHECK_PROCESS (process);
+
+ if (NETCONN_P (process))
+ wait_for_socket_fds (process, "set-process-filter-multibyte");
+
p = XPROCESS (process);
if (NILP (flag))
pset_decode_coding_system
DO_DISPLAY means redisplay should be done to show subprocess
output that arrives.
- Return positive if we received input from WAIT_PROC (or from any
- process if WAIT_PROC is null), zero if we attempted to receive
- input but got none, and negative if we didn't even try. */
+ Return -1 signifying we got no output and did not try. */
int
wait_reading_process_output (intmax_t time_limit, int nsecs, int read_kbd,
{
register int nfds;
struct timespec end_time, timeout;
+ enum { MINIMUM = -1, TIMEOUT, INFINITY } wait;
- if (time_limit < 0)
- {
- time_limit = 0;
- nsecs = -1;
- }
- else if (TYPE_MAXIMUM (time_t) < time_limit)
+ if (TYPE_MAXIMUM (time_t) < time_limit)
time_limit = TYPE_MAXIMUM (time_t);
- /* What does time_limit really mean? */
- if (time_limit || nsecs > 0)
+ if (time_limit < 0 || nsecs < 0)
+ wait = MINIMUM;
+ else if (time_limit > 0 || nsecs > 0)
{
- timeout = make_timespec (time_limit, nsecs);
- end_time = timespec_add (current_timespec (), timeout);
+ wait = TIMEOUT;
+ end_time = timespec_add (current_timespec (),
+ make_timespec (time_limit, nsecs));
}
+ else
+ wait = INFINITY;
/* Turn off periodic alarms (in case they are in use)
and then turn off any other atimers,
/* Compute time from now till when time limit is up. */
/* Exit if already run out. */
- if (nsecs < 0)
- {
- /* A negative timeout means
- gobble output available now
- but don't wait at all. */
-
- timeout = make_timespec (0, 0);
- }
- else if (time_limit || nsecs > 0)
+ if (wait == TIMEOUT)
{
struct timespec now = current_timespec ();
if (timespec_cmp (end_time, now) <= 0)
timeout = timespec_sub (end_time, now);
}
else
- {
- timeout = make_timespec (100000, 0);
- }
+ timeout = make_timespec (wait < TIMEOUT ? 0 : 100000, 0);
/* If our caller will not immediately handle keyboard events,
run timer events directly.
&& requeued_events_pending_p ())
break;
- if (timespec_valid_p (timer_delay) && nsecs >= 0)
+ if (timespec_valid_p (timer_delay))
{
if (timespec_cmp (timer_delay, timeout) < 0)
{
/* If we woke up due to SIGWINCH, actually change size now. */
do_pending_window_change (0);
- if ((time_limit || nsecs) && nfds == 0 && ! timeout_reduced_for_timers)
+ if (wait < INFINITY && nfds == 0 && ! timeout_reduced_for_timers)
/* We waited the full specified time, so return now. */
break;
}
DEFUN ("get-buffer-process", Fget_buffer_process, Sget_buffer_process, 1, 1, 0,
- doc: /* Return the (or a) process associated with BUFFER.
-BUFFER may be a buffer or the name of one. */)
+ doc: /* Return the (or a) live process associated with BUFFER.
+BUFFER may be a buffer or the name of one.
+Return nil if all processes associated with BUFFER have been
+deleted or killed. */)
(register Lisp_Object buffer)
{
#ifdef subprocesses
FOR_EACH_PROCESS (tail, proc)
if (NILP (buffer) || EQ (XPROCESS (proc)->buffer, buffer))
{
- if (NETCONN_P (proc) || SERIALCONN_P (proc))
+ if (NETCONN_P (proc) || SERIALCONN_P (proc) || PIPECONN_P (proc))
Fdelete_process (proc);
else if (XPROCESS (proc)->infd >= 0)
process_send_signal (proc, SIGHUP, Qnil, 1);
Value is an alist where each element is a cons cell of the form
- \(KEY . VALUE)
+ (KEY . VALUE)
If this functionality is unsupported, the value is nil.
num_pending_connects = 0;
#endif
-#ifdef ADAPTIVE_READ_BUFFERING
process_output_delay_count = 0;
process_output_skip = 0;
-#endif
/* Don't do this, it caused infinite select loops. The display
method should call add_keyboard_wait_descriptor on stdin if it
#ifdef DATAGRAM_SOCKETS
memset (datagram_address, 0, sizeof datagram_address);
#endif
-
- {
- Lisp_Object subfeatures = Qnil;
- const struct socket_options *sopt;
-
-#define ADD_SUBFEATURE(key, val) \
- subfeatures = pure_cons (pure_cons (key, pure_cons (val, Qnil)), subfeatures)
-
-#ifdef NON_BLOCKING_CONNECT
- ADD_SUBFEATURE (QCnowait, Qt);
-#endif
-#ifdef DATAGRAM_SOCKETS
- ADD_SUBFEATURE (QCtype, Qdatagram);
-#endif
-#ifdef HAVE_SEQPACKET
- ADD_SUBFEATURE (QCtype, Qseqpacket);
-#endif
-#ifdef HAVE_LOCAL_SOCKETS
- ADD_SUBFEATURE (QCfamily, Qlocal);
-#endif
- ADD_SUBFEATURE (QCfamily, Qipv4);
-#ifdef AF_INET6
- ADD_SUBFEATURE (QCfamily, Qipv6);
-#endif
-#ifdef HAVE_GETSOCKNAME
- ADD_SUBFEATURE (QCservice, Qt);
+#ifdef HAVE_GETADDRINFO_A
+ dns_processes = Qnil;
#endif
- ADD_SUBFEATURE (QCserver, Qt);
-
- for (sopt = socket_options; sopt->name; sopt++)
- subfeatures = pure_cons (intern_c_string (sopt->name), subfeatures);
-
- Fprovide (intern_c_string ("make-network-process"), subfeatures);
- }
#if defined (DARWIN_OS)
/* PTYs are broken on Darwin < 6, but are sometimes useful for interactive
DEFSYM (Qreal, "real");
DEFSYM (Qnetwork, "network");
DEFSYM (Qserial, "serial");
+ DEFSYM (Qpipe, "pipe");
DEFSYM (QCbuffer, ":buffer");
DEFSYM (QChost, ":host");
DEFSYM (QCservice, ":service");
DEFSYM (QCserver, ":server");
DEFSYM (QCnowait, ":nowait");
DEFSYM (QCsentinel, ":sentinel");
+ DEFSYM (QCtls_parameters, ":tls-parameters");
+ DEFSYM (Qnsm_verify_connection, "nsm-verify-connection");
DEFSYM (QClog, ":log");
DEFSYM (QCnoquery, ":noquery");
DEFSYM (QCstop, ":stop");
- DEFSYM (QCoptions, ":options");
DEFSYM (QCplist, ":plist");
DEFSYM (QCcommand, ":command");
DEFSYM (QCconnection_type, ":connection-type");
+ DEFSYM (QCstderr, ":stderr");
DEFSYM (Qpty, "pty");
DEFSYM (Qpipe, "pipe");
staticpro (&Vprocess_alist);
staticpro (&deleted_pid_list);
+#ifdef HAVE_GETADDRINFO_A
+ staticpro (&dns_processes);
+#endif
#endif /* subprocesses */
The value takes effect when `start-process' is called. */);
Vprocess_connection_type = Qt;
-#ifdef ADAPTIVE_READ_BUFFERING
DEFVAR_LISP ("process-adaptive-read-buffering", Vprocess_adaptive_read_buffering,
doc: /* If non-nil, improve receive buffering by delaying after short reads.
On some systems, when Emacs reads the output from a subprocess, the output data
non-nil value means that the delay is not reset on write.
The variable takes effect when `start-process' is called. */);
Vprocess_adaptive_read_buffering = Qt;
-#endif
defsubr (&Sprocessp);
defsubr (&Sget_process);
defsubr (&Sset_process_plist);
defsubr (&Sprocess_list);
defsubr (&Smake_process);
+ defsubr (&Smake_pipe_process);
defsubr (&Sserial_process_configure);
defsubr (&Smake_serial_process);
defsubr (&Sset_network_process_option);
defsubr (&Sprocess_inherit_coding_system_flag);
defsubr (&Slist_system_processes);
defsubr (&Sprocess_attributes);
+
+ {
+ Lisp_Object subfeatures = Qnil;
+ const struct socket_options *sopt;
+
+#define ADD_SUBFEATURE(key, val) \
+ subfeatures = pure_cons (pure_cons (key, pure_cons (val, Qnil)), subfeatures)
+
+#ifdef NON_BLOCKING_CONNECT
+ ADD_SUBFEATURE (QCnowait, Qt);
+#endif
+#ifdef DATAGRAM_SOCKETS
+ ADD_SUBFEATURE (QCtype, Qdatagram);
+#endif
+#ifdef HAVE_SEQPACKET
+ ADD_SUBFEATURE (QCtype, Qseqpacket);
+#endif
+#ifdef HAVE_LOCAL_SOCKETS
+ ADD_SUBFEATURE (QCfamily, Qlocal);
+#endif
+ ADD_SUBFEATURE (QCfamily, Qipv4);
+#ifdef AF_INET6
+ ADD_SUBFEATURE (QCfamily, Qipv6);
+#endif
+#ifdef HAVE_GETSOCKNAME
+ ADD_SUBFEATURE (QCservice, Qt);
+#endif
+ ADD_SUBFEATURE (QCserver, Qt);
+
+ for (sopt = socket_options; sopt->name; sopt++)
+ subfeatures = pure_cons (intern_c_string (sopt->name), subfeatures);
+
+ Fprovide (intern_c_string ("make-network-process"), subfeatures);
+ }
+
}