/* Asynchronous subprocess control for GNU Emacs.
- Copyright (C) 1985, 86, 87, 88, 93, 94, 95, 96, 98, 1999,
- 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995,
+ 1996, 1998, 1999, 2001, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#include <config.h>
#include <sys/types.h> /* some typedefs are used in sys/file.h */
#include <sys/file.h>
#include <sys/stat.h>
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/wait.h>
#endif
+/* Disable IPv6 support for w32 until someone figures out how to do it
+ properly. */
+#ifdef WINDOWSNT
+# ifdef AF_INET6
+# undef AF_INET6
+# endif
+#endif
+
+#include "lisp.h"
#include "systime.h"
#include "systty.h"
-#include "lisp.h"
#include "window.h"
#include "buffer.h"
#include "charset.h"
Lisp_Object Qprocessp;
Lisp_Object Qrun, Qstop, Qsignal;
Lisp_Object Qopen, Qclosed, Qconnect, Qfailed, Qlisten;
-Lisp_Object Qlocal, Qdatagram;
+Lisp_Object Qlocal, Qipv4, Qdatagram;
+#ifdef AF_INET6
+Lisp_Object Qipv6;
+#endif
Lisp_Object QCname, QCbuffer, QChost, QCservice, QCtype;
Lisp_Object QClocal, QCremote, QCcoding;
Lisp_Object QCserver, QCnowait, QCnoquery, QCstop;
#include "syswait.h"
-extern void set_waiting_for_input P_ ((EMACS_TIME *));
+extern char *get_operating_system_release ();
#ifndef USE_CRT_DLL
extern int errno;
#undef DATAGRAM_SOCKETS
#endif
+#if !defined (ADAPTIVE_READ_BUFFERING) && !defined (NO_ADAPTIVE_READ_BUFFERING)
+#ifdef EMACS_HAS_USECS
+#define ADAPTIVE_READ_BUFFERING
+#endif
+#endif
+
+#ifdef ADAPTIVE_READ_BUFFERING
+#define READ_OUTPUT_DELAY_INCREMENT 10000
+#define READ_OUTPUT_DELAY_MAX (READ_OUTPUT_DELAY_INCREMENT * 5)
+#define READ_OUTPUT_DELAY_MAX_MAX (READ_OUTPUT_DELAY_INCREMENT * 7)
+
+/* Number of processes which have a non-zero read_output_delay,
+ and therefore might be delayed for adaptive read buffering. */
+
+static int process_output_delay_count;
+
+/* Non-zero if any process has non-nil read_output_skip. */
+
+static int process_output_skip;
+
+/* Non-nil means to delay reading process output to improve buffering.
+ A value of t means that delay is reset after each send, any other
+ non-nil value does not reset the delay. A value of nil disables
+ adaptive read buffering completely. */
+static Lisp_Object Vprocess_adaptive_read_buffering;
+#else
+#define process_output_delay_count 0
+#endif
+
#include "sysselect.h"
-extern int keyboard_bit_set P_ ((SELECT_TYPE *));
+static int keyboard_bit_set P_ ((SELECT_TYPE *));
+static void deactivate_process P_ ((Lisp_Object));
+static void status_notify P_ ((struct Lisp_Process *));
+static int read_process_output P_ ((Lisp_Object, int));
/* If we support a window system, turn on the code to poll periodically
to detect C-g. It isn't actually used when doing interrupt input. */
static SELECT_TYPE non_process_wait_mask;
+#ifdef NON_BLOCKING_CONNECT
/* Mask of bits indicating the descriptors that we wait for connect to
complete on. Once they complete, they are removed from this mask
and added to the input_wait_mask and non_keyboard_wait_mask. */
/* Number of bits set in connect_wait_mask. */
static int num_pending_connects;
+#define IF_NON_BLOCKING_CONNECT(s) s
+#else
+#define IF_NON_BLOCKING_CONNECT(s)
+#endif
+
/* The largest descriptor currently in use for a process object. */
static int max_process_desc;
/* Maximum number of bytes to send to a pty without an eof. */
static int pty_max_bytes;
-extern Lisp_Object Vfile_name_coding_system, Vdefault_file_name_coding_system;
-
#ifdef HAVE_PTYS
#ifdef HAVE_PTY_H
#include <pty.h>
/* Compute the Lisp form of the process status, p->status, from
the numeric status that was returned by `wait'. */
-Lisp_Object status_convert ();
+static Lisp_Object status_convert ();
-void
+static void
update_status (p)
struct Lisp_Process *p;
{
union { int i; WAITTYPE wt; } u;
- u.i = XFASTINT (p->raw_status_low) + (XFASTINT (p->raw_status_high) << 16);
+ eassert (p->raw_status_new);
+ u.i = p->raw_status;
p->status = status_convert (u.wt);
- p->raw_status_low = Qnil;
- p->raw_status_high = Qnil;
+ p->raw_status_new = 0;
}
/* Convert a process status word in Unix format to
the list that we use internally. */
-Lisp_Object
+static Lisp_Object
status_convert (w)
WAITTYPE w;
{
/* Given a status-list, extract the three pieces of information
and store them individually through the three pointers. */
-void
+static void
decode_status (l, symbol, code, coredump)
Lisp_Object l;
Lisp_Object *symbol;
/* Return a string describing a process status list. */
-Lisp_Object
-status_message (status)
- Lisp_Object status;
+static Lisp_Object
+status_message (p)
+ struct Lisp_Process *p;
{
+ Lisp_Object status = p->status;
Lisp_Object symbol;
int code, coredump;
Lisp_Object string, string2;
}
else if (EQ (symbol, Qexit))
{
+ if (NETCONN1_P (p))
+ return build_string (code == 0 ? "deleted\n" : "connection broken by remote peer\n");
if (code == 0)
return build_string ("finished\n");
string = Fnumber_to_string (make_number (code));
The file name of the terminal corresponding to the pty
is left in the variable pty_name. */
-int
+static int
allocate_pty ()
{
register int c, i;
three failures in a row before deciding that we've reached the
end of the ptys. */
int failed_count = 0;
-
+
if (stat (pty_name, &stb) < 0)
{
failed_count++;
}
#endif /* HAVE_PTYS */
\f
-Lisp_Object
+static Lisp_Object
make_process (name)
Lisp_Object name;
{
XSETINT (p->infd, -1);
XSETINT (p->outfd, -1);
- XSETFASTINT (p->pid, 0);
XSETFASTINT (p->tick, 0);
XSETFASTINT (p->update_tick, 0);
- p->raw_status_low = Qnil;
- p->raw_status_high = Qnil;
+ p->pid = 0;
+ p->raw_status_new = 0;
p->status = Qrun;
p->mark = Fmake_marker ();
+#ifdef ADAPTIVE_READ_BUFFERING
+ p->adaptive_read_buffering = Qnil;
+ XSETFASTINT (p->read_output_delay, 0);
+ p->read_output_skip = Qnil;
+#endif
+
/* If name is already in use, modify it until it is unused. */
name1 = name;
return val;
}
-void
+static void
remove_process (proc)
register Lisp_Object proc;
{
(process)
register Lisp_Object process;
{
+ register struct Lisp_Process *p;
+
process = get_process (process);
- XPROCESS (process)->raw_status_low = Qnil;
- XPROCESS (process)->raw_status_high = Qnil;
- if (NETCONN_P (process))
+ p = XPROCESS (process);
+
+ p->raw_status_new = 0;
+ if (NETCONN1_P (p))
{
- XPROCESS (process)->status = Fcons (Qexit, Fcons (make_number (0), Qnil));
- XSETINT (XPROCESS (process)->tick, ++process_tick);
+ p->status = Fcons (Qexit, Fcons (make_number (0), Qnil));
+ XSETINT (p->tick, ++process_tick);
+ status_notify (p);
}
- else if (XINT (XPROCESS (process)->infd) >= 0)
+ else if (XINT (p->infd) >= 0)
{
Fkill_process (process, Qnil);
/* Do this now, since remove_process will make sigchld_handler do nothing. */
- XPROCESS (process)->status
+ p->status
= Fcons (Qsignal, Fcons (make_number (SIGKILL), Qnil));
- XSETINT (XPROCESS (process)->tick, ++process_tick);
- status_notify ();
+ XSETINT (p->tick, ++process_tick);
+ status_notify (p);
}
remove_process (process);
return Qnil;
return process;
p = XPROCESS (process);
- if (!NILP (p->raw_status_low))
+ if (p->raw_status_new)
update_status (p);
status = p->status;
if (CONSP (status))
register Lisp_Object process;
{
CHECK_PROCESS (process);
- if (!NILP (XPROCESS (process)->raw_status_low))
+ if (XPROCESS (process)->raw_status_new)
update_status (XPROCESS (process));
if (CONSP (XPROCESS (process)->status))
return XCAR (XCDR (XPROCESS (process)->status));
DEFUN ("process-id", Fprocess_id, Sprocess_id, 1, 1, 0,
doc: /* Return the process id of PROCESS.
-This is the pid of the Unix process which PROCESS uses or talks to.
+This is the pid of the external process which PROCESS uses or talks to.
For a network connection, this value is nil. */)
(process)
register Lisp_Object process;
{
CHECK_PROCESS (process);
- return XPROCESS (process)->pid;
+ return (XPROCESS (process)->pid
+ ? make_fixnum_or_float (XPROCESS (process)->pid)
+ : Qnil);
}
DEFUN ("process-name", Fprocess_name, Sprocess_name, 1, 1, 0,
Fset_process_query_on_exit_flag, Sset_process_query_on_exit_flag,
2, 2, 0,
doc: /* Specify if query is needed for PROCESS when Emacs is exited.
-If the second argument FLAG is non-nil, emacs will query the user before
+If the second argument FLAG is non-nil, Emacs will query the user before
exiting if PROCESS is running. */)
(process, flag)
register Lisp_Object process, flag;
DEFUN ("process-query-on-exit-flag",
Fprocess_query_on_exit_flag, Sprocess_query_on_exit_flag,
1, 1, 0,
- doc: /* Return the current value of query on exit flag for PROCESS. */)
+ doc: /* Return the current value of query-on-exit flag for PROCESS. */)
(process)
register Lisp_Object process;
{
DEFUN ("format-network-address", Fformat_network_address, Sformat_network_address,
1, 2, 0,
doc: /* Convert network ADDRESS from internal format to a string.
+A 4 or 5 element vector represents an IPv4 address (with port number).
+An 8 or 9 element vector represents an IPv6 address (with port number).
If optional second argument OMIT-PORT is non-nil, don't include a port
-number in the string; in this case, interpret a 4 element vector as an
-IP address. Returns nil if format of ADDRESS is invalid. */)
+number in the string, even when present in ADDRESS.
+Returns nil if format of ADDRESS is invalid. */)
(address, omit_port)
Lisp_Object address, omit_port;
{
if (STRINGP (address)) /* AF_LOCAL */
return address;
- if (VECTORP (address)) /* AF_INET */
+ if (VECTORP (address)) /* AF_INET or AF_INET6 */
{
register struct Lisp_Vector *p = XVECTOR (address);
Lisp_Object args[6];
int nargs, i;
- if (!NILP (omit_port) && (p->size == 4 || p->size == 5))
+ if (p->size == 4 || (p->size == 5 && !NILP (omit_port)))
{
args[0] = build_string ("%d.%d.%d.%d");
nargs = 4;
args[0] = build_string ("%d.%d.%d.%d:%d");
nargs = 5;
}
+ else if (p->size == 8 || (p->size == 9 && !NILP (omit_port)))
+ {
+ args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x");
+ nargs = 8;
+ }
+ else if (p->size == 9)
+ {
+ args[0] = build_string ("[%x:%x:%x:%x:%x:%x:%x:%x]:%d");
+ nargs = 9;
+ }
else
return Qnil;
}
#endif
\f
-Lisp_Object
+static Lisp_Object
list_processes_1 (query_only)
Lisp_Object query_only;
{
XSETFASTINT (minspace, 1);
set_buffer_internal (XBUFFER (Vstandard_output));
- Fbuffer_disable_undo (Vstandard_output);
+ current_buffer->undo_list = Qt;
current_buffer->truncate_lines = Qt;
Finsert (1, &p->name);
Findent_to (i_status, minspace);
- if (!NILP (p->raw_status_low))
+ if (p->raw_status_new)
update_status (p);
symbol = p->status;
if (CONSP (p->status))
DEFUN ("start-process", Fstart_process, Sstart_process, 3, MANY, 0,
doc: /* Start a program in a subprocess. Return the process object for it.
NAME is name for process. It is modified if necessary to make it unique.
-BUFFER is the buffer or (buffer-name) to associate with the process.
+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.
-Third arg is program file name. It is searched for in PATH.
+PROGRAM is the program file name. It is searched for in PATH.
Remaining arguments are strings to give program as arguments.
usage: (start-process NAME BUFFER PROGRAM &rest PROGRAM-ARGS) */)
XPROCESS (proc)->childp = Qt;
XPROCESS (proc)->plist = Qnil;
- XPROCESS (proc)->command_channel_p = Qnil;
XPROCESS (proc)->buffer = buffer;
XPROCESS (proc)->sentinel = Qnil;
XPROCESS (proc)->filter = Qnil;
= buffer_defaults.enable_multibyte_characters;
XPROCESS (proc)->command = Flist (nargs - 2, args + 2);
+#ifdef ADAPTIVE_READ_BUFFERING
+ XPROCESS (proc)->adaptive_read_buffering = Vprocess_adaptive_read_buffering;
+#endif
+
/* Make the process marker point into the process buffer (if any). */
- if (!NILP (buffer))
+ if (BUFFERP (buffer))
set_marker_both (XPROCESS (proc)->mark, buffer,
BUF_ZV (XBUFFER (buffer)),
BUF_ZV_BYTE (XBUFFER (buffer)));
abort ();
/* Was PROC started successfully? */
- if (XINT (XPROCESS (proc)->pid) <= 0)
+ if (XPROCESS (proc)->pid <= 0)
remove_process (proc);
return Qnil;
}
-void
+static void
create_process_1 (timer)
struct atimer *timer;
{
#endif
if (forkin < 0)
report_file_error ("Opening pty", Qnil);
+#if defined (RTU) || defined (UNIPLUS) || defined (DONT_REOPEN_PTY)
+ /* In the case that vfork is defined as fork, the parent process
+ (Emacs) may send some data before the child process completes
+ tty options setup. So we setup tty before forking. */
+ child_setup_tty (forkout);
+#endif /* RTU or UNIPLUS or DONT_REOPEN_PTY */
#else
forkin = forkout = -1;
#endif /* not USG, or USG_SUBTTY_WORKS */
in the table after this function has returned; if it does
it might cause call-process to hang and subsequent asynchronous
processes to get their return values scrambled. */
- XSETINT (XPROCESS (process)->pid, -1);
+ XPROCESS (process)->pid = -1;
BLOCK_INPUT;
#endif /* SIGCHLD */
#endif /* !POSIX_SIGNALS */
+#if !defined (RTU) && !defined (UNIPLUS) && !defined (DONT_REOPEN_PTY)
if (pty_flag)
child_setup_tty (xforkout);
+#endif /* not RTU and not UNIPLUS and not DONT_REOPEN_PTY */
#ifdef WINDOWSNT
pid = child_setup (xforkin, xforkout, xforkout,
new_argv, 1, current_dir);
else
{
/* vfork succeeded. */
- XSETFASTINT (XPROCESS (process)->pid, pid);
+ XPROCESS (process)->pid = pid;
#ifdef WINDOWSNT
register_child (pid, inchannel);
cp = (unsigned char *)&sin->sin_addr;
break;
}
+#ifdef AF_INET6
+ case AF_INET6:
+ {
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa;
+ uint16_t *ip6 = (uint16_t *)&sin6->sin6_addr;
+ len = sizeof (sin6->sin6_addr)/2 + 1;
+ address = Fmake_vector (make_number (len), Qnil);
+ p = XVECTOR (address);
+ p->contents[--len] = make_number (ntohs (sin6->sin6_port));
+ for (i = 0; i < len; i++)
+ p->contents[i] = make_number (ntohs (ip6[i]));
+ return address;
+ }
+#endif
#ifdef HAVE_LOCAL_SOCKETS
case AF_LOCAL:
{
*familyp = AF_INET;
return sizeof (struct sockaddr_in);
}
+#ifdef AF_INET6
+ else if (p->size == 9)
+ {
+ *familyp = AF_INET6;
+ return sizeof (struct sockaddr_in6);
+ }
+#endif
}
#ifdef HAVE_LOCAL_SOCKETS
else if (STRINGP (address))
}
/* Convert an address object (vector or string) to an internal sockaddr.
- Format of address has already been validated by size_lisp_to_sockaddr. */
+
+ The address format has been basically validated by
+ get_lisp_to_sockaddr_size, but this does not mean FAMILY is valid;
+ it could have come from user data. So if FAMILY is not valid,
+ we return after zeroing *SA. */
static void
conv_lisp_to_sockaddr (family, address, sa, len)
register int i;
bzero (sa, len);
- sa->sa_family = family;
if (VECTORP (address))
{
i = XINT (p->contents[--len]);
sin->sin_port = htons (i);
cp = (unsigned char *)&sin->sin_addr;
+ sa->sa_family = family;
}
+#ifdef AF_INET6
+ else if (family == AF_INET6)
+ {
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa;
+ uint16_t *ip6 = (uint16_t *)&sin6->sin6_addr;
+ len = sizeof (sin6->sin6_addr) + 1;
+ i = XINT (p->contents[--len]);
+ sin6->sin6_port = htons (i);
+ for (i = 0; i < len; i++)
+ if (INTEGERP (p->contents[i]))
+ {
+ int j = XFASTINT (p->contents[i]) & 0xffff;
+ ip6[i] = ntohs (j);
+ }
+ sa->sa_family = family;
+ }
+#endif
+ return;
}
else if (STRINGP (address))
{
cp = SDATA (address);
for (i = 0; i < sizeof (sockun->sun_path) && *cp; i++)
sockun->sun_path[i] = *cp++;
+ sa->sa_family = family;
}
#endif
return;
int optlevel;
/* Option number SO_... */
int optnum;
- enum { SOPT_UNKNOWN, SOPT_BOOL, SOPT_INT, SOPT_STR, SOPT_LINGER } opttype;
+ enum { SOPT_UNKNOWN, SOPT_BOOL, SOPT_INT, SOPT_IFNAME, SOPT_LINGER } opttype;
enum { OPIX_NONE=0, OPIX_MISC=1, OPIX_REUSEADDR=2 } optbit;
} socket_options[] =
{
#ifdef SO_BINDTODEVICE
- { ":bindtodevice", SOL_SOCKET, SO_BINDTODEVICE, SOPT_STR, OPIX_MISC },
+ { ":bindtodevice", SOL_SOCKET, SO_BINDTODEVICE, SOPT_IFNAME, OPIX_MISC },
#endif
#ifdef SO_BROADCAST
{ ":broadcast", SOL_SOCKET, SO_BROADCAST, SOPT_BOOL, OPIX_MISC },
break;
}
- case SOPT_STR:
+#ifdef SO_BINDTODEVICE
+ case SOPT_IFNAME:
{
- char *arg;
-
- if (NILP (val))
- arg = "";
- else if (STRINGP (val))
- arg = (char *) SDATA (val);
- else if (XSYMBOL (val))
- arg = (char *) SDATA (SYMBOL_NAME (val));
- else
+ char devname[IFNAMSIZ+1];
+
+ /* This is broken, at least in the Linux 2.4 kernel.
+ To unbind, the arg must be a zero integer, not the empty string.
+ This should work on all systems. KFS. 2003-09-23. */
+ bzero (devname, sizeof devname);
+ if (STRINGP (val))
+ {
+ char *arg = (char *) SDATA (val);
+ int len = min (strlen (arg), IFNAMSIZ);
+ bcopy (arg, devname, len);
+ }
+ else if (!NILP (val))
error ("Bad option value for %s", name);
ret = setsockopt (s, sopt->optlevel, sopt->optnum,
- arg, strlen (arg));
+ devname, IFNAMSIZ);
+ break;
}
+#endif
#ifdef SO_LINGER
case SOPT_LINGER:
Lisp_Object no_error;
{
int s;
+ struct Lisp_Process *p;
CHECK_PROCESS (process);
+ p = XPROCESS (process);
+ if (!NETCONN1_P (p))
+ error ("Process is not a network process");
- s = XINT (XPROCESS (process)->infd);
+ s = XINT (p->infd);
if (s < 0)
error ("Process is not running");
if (set_socket_option (s, option, value))
- return Qt;
+ {
+ p->childp = Fplist_put (p->childp, option, value);
+ return Qt;
+ }
if (NILP (no_error))
error ("Unknown or unsupported option");
\f
/* A version of request_sigio suitable for a record_unwind_protect. */
-Lisp_Object
+static Lisp_Object
unwind_request_sigio (dummy)
Lisp_Object dummy;
{
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 signalled, and the status codes are different from normal
+it cannot be signaled, and the status codes are different from normal
processes.
Arguments are specified as keyword/argument pairs. The following
stream type connection, `datagram' creates a datagram type connection.
:family FAMILY -- FAMILY is the address (and protocol) family for the
-service specified by HOST and SERVICE. The default address family is
-Inet (or IPv4) for the host and port number specified by HOST and
-SERVICE. Other address families supported are:
+service specified by HOST and SERVICE. The default (nil) is to use
+whatever address family (IPv4 or IPv6) that is defined for the host
+and port number specified by HOST and SERVICE. Other address families
+supported are:
local -- for a local (i.e. UNIX) address specified by SERVICE.
+ ipv4 -- use IPv4 address family only.
+ ipv6 -- use IPv6 address family only.
:local ADDRESS -- ADDRESS is the local address used for the connection.
This parameter is ignored when opening a client process. When specified
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.
+running when Emacs is exited.
:stop BOOL -- Start process in the `stopped' state if BOOL non-nil.
In the stopped state, a server process does not accept new
The following network options can be specified for this connection:
-:bindtodevice NAME -- bind to interface NAME.
:broadcast BOOL -- Allow send and receive of datagram broadcasts.
:dontroute BOOL -- Only send to directly connected hosts.
:keepalive BOOL -- Send keep-alive messages on network stream.
:priority INT -- Set protocol defined priority for sent packets.
:reuseaddr BOOL -- Allow reusing a recently used local address
(this is allowed by default for a server process).
+:bindtodevice NAME -- bind to interface NAME. Using this may require
+ special privileges on some systems.
Consult the relevant system programmer's manual pages for more
information on using these options.
struct Lisp_Process *p;
#ifdef HAVE_GETADDRINFO
struct addrinfo ai, *res, *lres;
- struct addrinfo hints;
- char *portstring, portbuf[128];
+ struct addrinfo hints;
+ char *portstring, portbuf[128];
#else /* HAVE_GETADDRINFO */
struct _emacs_addrinfo
{
int xerrno = 0;
int s = -1, outch, inch;
struct gcpro gcpro1;
- int retry = 0;
int count = SPECPDL_INDEX ();
int count1;
Lisp_Object QCaddress; /* one of QClocal or QCremote */
/* :family FAMILY -- nil (for Inet), local, or integer. */
tem = Fplist_get (contact, QCfamily);
- if (INTEGERP (tem))
- family = XINT (tem);
- else
+ if (NILP (tem))
{
- if (NILP (tem))
- family = AF_INET;
-#ifdef HAVE_LOCAL_SOCKETS
- else if (EQ (tem, Qlocal))
- family = AF_LOCAL;
+#if defined(HAVE_GETADDRINFO) && defined(AF_INET6)
+ family = AF_UNSPEC;
+#else
+ family = AF_INET;
#endif
}
- if (family < 0)
+#ifdef HAVE_LOCAL_SOCKETS
+ else if (EQ (tem, Qlocal))
+ family = AF_LOCAL;
+#endif
+#ifdef AF_INET6
+ else if (EQ (tem, Qipv6))
+ family = AF_INET6;
+#endif
+ else if (EQ (tem, Qipv4))
+ family = AF_INET;
+ else if (INTEGERP (tem))
+ family = XINT (tem);
+ else
error ("Unknown address family");
+
ai.ai_family = family;
/* :service SERVICE -- string, integer (port number), or t (random port). */
QUIT;
memset (&hints, 0, sizeof (hints));
hints.ai_flags = 0;
- hints.ai_family = NILP (Fplist_member (contact, QCfamily)) ? AF_UNSPEC : family;
+ hints.ai_family = family;
hints.ai_socktype = socktype;
hints.ai_protocol = 0;
ret = getaddrinfo (SDATA (host), portstring, &hints, &res);
struct hostent *host_info_ptr;
/* gethostbyname may fail with TRY_AGAIN, but we don't honour that,
- as it may `hang' emacs for a very long time. */
+ as it may `hang' Emacs for a very long time. */
immediate_quit = 1;
QUIT;
host_info_ptr = gethostbyname (SDATA (host));
{
int optn, optbits;
+ retry_connect:
+
s = socket (lres->ai_family, lres->ai_socktype, lres->ai_protocol);
if (s < 0)
{
{
int optval = 1;
if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval))
- report_file_error ("Cannot set reuse option on server socket.", Qnil);
+ report_file_error ("Cannot set reuse option on server socket", Qnil);
}
if (bind (s, lres->ai_addr, lres->ai_addrlen))
break;
}
- retry_connect:
-
immediate_quit = 1;
QUIT;
immediate_quit = 0;
- if (xerrno == EINTR)
- goto retry_connect;
- if (xerrno == EADDRINUSE && retry < 20)
- {
- /* A delay here is needed on some FreeBSD systems,
- and it is harmless, since this retrying takes time anyway
- and should be infrequent. */
- Fsleep_for (make_number (1), Qnil);
- retry++;
- goto retry_connect;
- }
-
/* Discard the unwind protect closing S. */
specpdl_ptr = specpdl + count1;
emacs_close (s);
s = -1;
+
+ if (xerrno == EINTR)
+ goto retry_connect;
}
if (s >= 0)
p->kill_without_query = Qt;
if ((tem = Fplist_get (contact, QCstop), !NILP (tem)))
p->command = Qt;
- p->pid = Qnil;
+ p->pid = 0;
XSETINT (p->infd, inch);
XSETINT (p->outfd, outch);
if (is_server && socktype == SOCK_STREAM)
p->status = 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)
{
#endif
#ifdef IFF_DYNAMIC
{ IFF_DYNAMIC, "dynamic" },
+#endif
+#ifdef IFF_OACTIVE
+ { IFF_OACTIVE, "oactive" }, /* OpenBSD: transmission in progress */
+#endif
+#ifdef IFF_SIMPLEX
+ { IFF_SIMPLEX, "simplex" }, /* OpenBSD: can't hear own transmissions */
+#endif
+#ifdef IFF_LINK0
+ { IFF_LINK0, "link0" }, /* OpenBSD: per link layer defined bit */
+#endif
+#ifdef IFF_LINK1
+ { IFF_LINK1, "link1" }, /* OpenBSD: per link layer defined bit */
+#endif
+#ifdef IFF_LINK2
+ { IFF_LINK2, "link2" }, /* OpenBSD: per link layer defined bit */
#endif
{ 0, 0 }
};
int fnum;
any++;
- for (fp = ifflag_table; flags != 0 && fp; fp++)
+ for (fp = ifflag_table; flags != 0 && fp->flag_sym; fp++)
{
if (flags & fp->flag_bit)
{
res = Fcons (elt, res);
elt = Qnil;
-#if defined(SIOCGIFNETMASK) && defined(ifr_netmask)
+#if defined(SIOCGIFNETMASK) && (defined(HAVE_STRUCT_IFREQ_IFR_NETMASK) || defined(HAVE_STRUCT_IFREQ_IFR_ADDR))
if (ioctl (s, SIOCGIFNETMASK, &rq) == 0)
{
any++;
+#ifdef HAVE_STRUCT_IFREQ_IFR_NETMASK
elt = conv_sockaddr_to_lisp (&rq.ifr_netmask, sizeof (rq.ifr_netmask));
+#else
+ elt = conv_sockaddr_to_lisp (&rq.ifr_addr, sizeof (rq.ifr_addr));
+#endif
}
#endif
res = Fcons (elt, res);
#endif
#endif /* HAVE_SOCKETS */
+/* Turn off input and output for process PROC. */
+
void
deactivate_process (proc)
Lisp_Object proc;
inchannel = XINT (p->infd);
outchannel = XINT (p->outfd);
+#ifdef ADAPTIVE_READ_BUFFERING
+ if (XINT (p->read_output_delay) > 0)
+ {
+ if (--process_output_delay_count < 0)
+ process_output_delay_count = 0;
+ XSETINT (p->read_output_delay, 0);
+ p->read_output_skip = Qnil;
+ }
+#endif
+
if (inchannel >= 0)
{
/* Beware SIGCHLD hereabouts. */
chan_process[inchannel] = Qnil;
FD_CLR (inchannel, &input_wait_mask);
FD_CLR (inchannel, &non_keyboard_wait_mask);
+#ifdef NON_BLOCKING_CONNECT
if (FD_ISSET (inchannel, &connect_wait_mask))
{
FD_CLR (inchannel, &connect_wait_mask);
if (--num_pending_connects < 0)
abort ();
}
+#endif
if (inchannel == max_process_desc)
{
int i;
}
\f
DEFUN ("accept-process-output", Faccept_process_output, Saccept_process_output,
- 0, 3, 0,
+ 0, 4, 0,
doc: /* Allow any pending output from subprocesses to be read by Emacs.
It is read into the process' buffers or given to their filter functions.
Non-nil arg PROCESS means do not return until some output has been received
from PROCESS.
-Non-nil second arg TIMEOUT and third arg TIMEOUT-MSECS are number of
-seconds and microseconds to wait; return after that much time whether
-or not there is input.
+
+Non-nil second arg SECONDS and third arg MILLISEC are number of
+seconds and milliseconds to wait; return after that much time whether
+or not there is input. If SECONDS is a floating point number,
+it specifies a fractional number of seconds to wait.
+
+If optional fourth arg JUST-THIS-ONE is non-nil, only accept output
+from PROCESS, suspending reading output from other processes.
+If JUST-THIS-ONE is an integer, don't run any timers either.
Return non-nil iff we received any output before the timeout expired. */)
- (process, timeout, timeout_msecs)
- register Lisp_Object process, timeout, timeout_msecs;
+ (process, seconds, millisec, just_this_one)
+ register Lisp_Object process, seconds, millisec, just_this_one;
{
- int seconds;
- int useconds;
+ int secs, usecs = 0;
if (! NILP (process))
CHECK_PROCESS (process);
+ else
+ just_this_one = Qnil;
- if (! NILP (timeout_msecs))
+ if (!NILP (seconds))
{
- CHECK_NUMBER (timeout_msecs);
- useconds = XINT (timeout_msecs);
- if (!INTEGERP (timeout))
- XSETINT (timeout, 0);
-
- {
- int carry = useconds / 1000000;
-
- XSETINT (timeout, XINT (timeout) + carry);
- useconds -= carry * 1000000;
+ if (INTEGERP (seconds))
+ secs = XINT (seconds);
+ else if (FLOATP (seconds))
+ {
+ double timeout = XFLOAT_DATA (seconds);
+ secs = (int) timeout;
+ usecs = (int) ((timeout - (double) secs) * 1000000);
+ }
+ else
+ wrong_type_argument (Qnumberp, seconds);
- /* I think this clause is necessary because C doesn't
- guarantee a particular rounding direction for negative
- integers. */
- if (useconds < 0)
- {
- XSETINT (timeout, XINT (timeout) - 1);
- useconds += 1000000;
- }
- }
- }
- else
- useconds = 0;
+ if (INTEGERP (millisec))
+ {
+ int carry;
+ usecs += XINT (millisec) * 1000;
+ carry = usecs / 1000000;
+ secs += carry;
+ if ((usecs -= carry * 1000000) < 0)
+ {
+ secs--;
+ usecs += 1000000;
+ }
+ }
- if (! NILP (timeout))
- {
- CHECK_NUMBER (timeout);
- seconds = XINT (timeout);
- if (seconds < 0 || (seconds == 0 && useconds == 0))
- seconds = -1;
+ if (secs < 0 || (secs == 0 && usecs == 0))
+ secs = -1, usecs = 0;
}
else
- seconds = NILP (process) ? -1 : 0;
-
- if (NILP (process))
- XSETFASTINT (process, 0);
+ secs = NILP (process) ? -1 : 0;
return
- (wait_reading_process_input (seconds, useconds, process, 0)
+ (wait_reading_process_output (secs, usecs, 0, 0,
+ Qnil,
+ !NILP (process) ? XPROCESS (process) : NULL,
+ NILP (just_this_one) ? 0 :
+ !INTEGERP (just_this_one) ? 1 : -1)
? Qt : Qnil);
}
union u_sockaddr {
struct sockaddr sa;
struct sockaddr_in in;
+#ifdef AF_INET6
+ struct sockaddr_in6 in6;
+#endif
#ifdef HAVE_LOCAL_SOCKETS
struct sockaddr_un un;
#endif
}
break;
+#ifdef AF_INET6
+ case AF_INET6:
+ {
+ Lisp_Object args[9];
+ uint16_t *ip6 = (uint16_t *)&saddr.in6.sin6_addr;
+ int i;
+ args[0] = build_string ("%x:%x:%x:%x:%x:%x:%x:%x");
+ for (i = 0; i < 8; i++)
+ args[i+1] = make_number (ntohs(ip6[i]));
+ host = Fformat (9, args);
+ service = make_number (ntohs (saddr.in.sin_port));
+
+ args[0] = build_string (" <[%s]:%d>");
+ args[1] = host;
+ args[2] = service;
+ caller = Fformat (3, args);
+ }
+ break;
+#endif
+
#ifdef HAVE_LOCAL_SOCKETS
case AF_LOCAL:
#endif
p->sentinel = ps->sentinel;
p->filter = ps->filter;
p->command = Qnil;
- p->pid = Qnil;
+ p->pid = 0;
XSETINT (p->infd, s);
XSETINT (p->outfd, s);
p->status = Qrun;
/* 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
+ function Fwaiting_for_user_input_p below) whether Emacs was waiting
for user-input when that process-filter was called.
waiting_for_input cannot be used as that is by definition 0 when
lisp code is being evalled.
This is also used in record_asynch_buffer_change.
For that purpose, this must be 0
- when not inside wait_reading_process_input. */
+ when not inside wait_reading_process_output. */
static int waiting_for_user_input_p;
/* This is here so breakpoints can be put on it. */
static void
-wait_reading_process_input_1 ()
+wait_reading_process_output_1 ()
{
}
1 to return when input is available, or
-1 meaning caller will actually read the input, so don't throw to
the quit handler, or
- a cons cell, meaning wait until its car is non-nil
- (and gobble terminal input into the buffer if any arrives), or
- a process object, meaning wait until something arrives from that
- process. The return value is true iff we read some input from
- that process.
DO_DISPLAY != 0 means redisplay should be done to show subprocess
- output that arrives.
+ output that arrives.
+
+ If WAIT_FOR_CELL is a cons cell, wait until its car is non-nil
+ (and gobble terminal input into the buffer if any arrives).
+
+ If WAIT_PROC is specified, wait until something arrives from that
+ process. The return value is true iff we read some input from
+ that process.
- If READ_KBD is a pointer to a struct Lisp_Process, then the
- function returns true iff we received input from that process
- before the timeout elapsed.
+ If JUST_WAIT_PROC is non-nil, handle only output from WAIT_PROC
+ (suspending output from other processes). A negative value
+ means don't run any timers either.
+
+ If WAIT_PROC is specified, then the function returns true iff we
+ received input from that process before the timeout elapsed.
Otherwise, return true iff we received input from any process. */
int
-wait_reading_process_input (time_limit, microsecs, read_kbd, do_display)
- int time_limit, microsecs;
- Lisp_Object read_kbd;
- int do_display;
+wait_reading_process_output (time_limit, microsecs, read_kbd, do_display,
+ wait_for_cell, wait_proc, just_wait_proc)
+ int time_limit, microsecs, read_kbd, do_display;
+ Lisp_Object wait_for_cell;
+ struct Lisp_Process *wait_proc;
+ int just_wait_proc;
{
register int channel, nfds;
- static SELECT_TYPE Available;
- static SELECT_TYPE Connecting;
- int check_connect, no_avail;
+ SELECT_TYPE Available;
+#ifdef NON_BLOCKING_CONNECT
+ SELECT_TYPE Connecting;
+ int check_connect;
+#endif
+ int check_delay, no_avail;
int xerrno;
Lisp_Object proc;
EMACS_TIME timeout, end_time;
int wait_channel = -1;
- struct Lisp_Process *wait_proc = 0;
int got_some_input = 0;
/* Either nil or a cons cell, the car of which is of interest and
may be changed outside of this routine. */
- Lisp_Object wait_for_cell = Qnil;
+ int saved_waiting_for_user_input_p = waiting_for_user_input_p;
FD_ZERO (&Available);
+#ifdef NON_BLOCKING_CONNECT
FD_ZERO (&Connecting);
+#endif
- /* If read_kbd is a process to watch, set wait_proc and wait_channel
- accordingly. */
- if (PROCESSP (read_kbd))
- {
- wait_proc = XPROCESS (read_kbd);
- wait_channel = XINT (wait_proc->infd);
- XSETFASTINT (read_kbd, 0);
- }
-
- /* If waiting for non-nil in a cell, record where. */
- if (CONSP (read_kbd))
- {
- wait_for_cell = read_kbd;
- XSETFASTINT (read_kbd, 0);
- }
+ /* If wait_proc is a process to watch, set wait_channel accordingly. */
+ if (wait_proc != NULL)
+ wait_channel = XINT (wait_proc->infd);
- waiting_for_user_input_p = XINT (read_kbd);
+ waiting_for_user_input_p = read_kbd;
/* Since we may need to wait several times,
compute the absolute time to return at. */
/* If calling from keyboard input, do not quit
since we want to return C-g as an input character.
Otherwise, do pending quit if requested. */
- if (XINT (read_kbd) >= 0)
+ if (read_kbd >= 0)
QUIT;
+#ifdef SYNC_INPUT
+ else if (interrupt_input_pending)
+ handle_async_input ();
+#endif
/* Exit now if the cell we're waiting for became non-nil. */
if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell)))
But not if wait_for_cell; in those cases,
the wait is supposed to be short,
and those callers cannot handle running arbitrary Lisp code here. */
- if (NILP (wait_for_cell))
+ if (NILP (wait_for_cell)
+ && just_wait_proc >= 0)
{
EMACS_TIME timer_delay;
while (!detect_input_pending ());
/* If there is unread keyboard input, also return. */
- if (XINT (read_kbd) != 0
+ if (read_kbd != 0
&& requeued_events_pending_p ())
break;
else if (time_limit != -1)
{
/* This is so a breakpoint can be put here. */
- wait_reading_process_input_1 ();
+ wait_reading_process_output_1 ();
}
}
It is important that we do this before checking for process
activity. If we get a SIGCHLD after the explicit checks for
process activity, timeout is the only way we will know. */
- if (XINT (read_kbd) < 0)
+ if (read_kbd < 0)
set_waiting_for_input (&timeout);
/* If status of something has changed, and no input is
timeout to get our attention. */
if (update_tick != process_tick && do_display)
{
- SELECT_TYPE Atemp, Ctemp;
+ SELECT_TYPE Atemp;
+#ifdef NON_BLOCKING_CONNECT
+ SELECT_TYPE Ctemp;
+#endif
Atemp = input_wait_mask;
-#ifdef MAC_OSX
- /* On Mac OS X, the SELECT system call always says input is
+#if 0
+ /* On Mac OS X 10.0, the SELECT system call always says input is
present (for reading) at stdin, even when none is. This
causes the call to SELECT below to return 1 and
status_notify not to be called. As a result output of
- subprocesses are incorrectly discarded. */
+ subprocesses are incorrectly discarded.
+ */
FD_CLR (0, &Atemp);
#endif
- Ctemp = connect_wait_mask;
+ IF_NON_BLOCKING_CONNECT (Ctemp = connect_wait_mask);
+
EMACS_SET_SECS_USECS (timeout, 0, 0);
if ((select (max (max_process_desc, max_keyboard_desc) + 1,
&Atemp,
+#ifdef NON_BLOCKING_CONNECT
(num_pending_connects > 0 ? &Ctemp : (SELECT_TYPE *)0),
+#else
+ (SELECT_TYPE *)0,
+#endif
(SELECT_TYPE *)0, &timeout)
<= 0))
{
/* 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 ();
- status_notify ();
+ status_notify (NULL);
}
}
/* Don't wait for output from a non-running process. Just
read whatever data has already been received. */
- if (wait_proc != 0 && !NILP (wait_proc->raw_status_low))
+ if (wait_proc && wait_proc->raw_status_new)
update_status (wait_proc);
- if (wait_proc != 0
+ if (wait_proc
&& ! EQ (wait_proc->status, Qrun)
&& ! EQ (wait_proc->status, Qconnect))
{
/* Wait till there is something to do */
- if (!NILP (wait_for_cell))
+ if (wait_proc && just_wait_proc)
+ {
+ if (XINT (wait_proc->infd) < 0) /* Terminated */
+ break;
+ FD_SET (XINT (wait_proc->infd), &Available);
+ check_delay = 0;
+ IF_NON_BLOCKING_CONNECT (check_connect = 0);
+ }
+ else if (!NILP (wait_for_cell))
{
Available = non_process_wait_mask;
- check_connect = 0;
+ check_delay = 0;
+ IF_NON_BLOCKING_CONNECT (check_connect = 0);
}
else
{
- if (! XINT (read_kbd))
+ if (! read_kbd)
Available = non_keyboard_wait_mask;
else
Available = input_wait_mask;
- check_connect = (num_pending_connects > 0);
+ IF_NON_BLOCKING_CONNECT (check_connect = (num_pending_connects > 0));
+ check_delay = wait_channel >= 0 ? 0 : process_output_delay_count;
}
/* If frame size has changed or the window is newly mapped,
{
clear_waiting_for_input ();
redisplay_preserve_echo_area (11);
- if (XINT (read_kbd) < 0)
+ if (read_kbd < 0)
set_waiting_for_input (&timeout);
}
no_avail = 0;
- if (XINT (read_kbd) && detect_input_pending ())
+ if (read_kbd && detect_input_pending ())
{
nfds = 0;
no_avail = 1;
}
else
{
+#ifdef NON_BLOCKING_CONNECT
if (check_connect)
Connecting = connect_wait_mask;
+#endif
+
+#ifdef ADAPTIVE_READ_BUFFERING
+ /* Set the timeout for adaptive read buffering if any
+ process has non-nil read_output_skip and non-zero
+ read_output_delay, and we are not reading output for a
+ specific wait_channel. It is not executed if
+ Vprocess_adaptive_read_buffering is nil. */
+ if (process_output_skip && check_delay > 0)
+ {
+ int usecs = EMACS_USECS (timeout);
+ if (EMACS_SECS (timeout) > 0 || usecs > READ_OUTPUT_DELAY_MAX)
+ usecs = READ_OUTPUT_DELAY_MAX;
+ for (channel = 0; check_delay > 0 && channel <= max_process_desc; channel++)
+ {
+ proc = chan_process[channel];
+ if (NILP (proc))
+ continue;
+ /* Find minimum non-zero read_output_delay among the
+ processes with non-nil read_output_skip. */
+ if (XINT (XPROCESS (proc)->read_output_delay) > 0)
+ {
+ check_delay--;
+ if (NILP (XPROCESS (proc)->read_output_skip))
+ continue;
+ FD_CLR (channel, &Available);
+ XPROCESS (proc)->read_output_skip = Qnil;
+ if (XINT (XPROCESS (proc)->read_output_delay) < usecs)
+ usecs = XINT (XPROCESS (proc)->read_output_delay);
+ }
+ }
+ EMACS_SET_SECS_USECS (timeout, 0, usecs);
+ process_output_skip = 0;
+ }
+#endif
+
nfds = select (max (max_process_desc, max_keyboard_desc) + 1,
&Available,
+#ifdef NON_BLOCKING_CONNECT
(check_connect ? &Connecting : (SELECT_TYPE *)0),
+#else
+ (SELECT_TYPE *)0,
+#endif
(SELECT_TYPE *)0, &timeout);
}
if (no_avail)
{
FD_ZERO (&Available);
- check_connect = 0;
+ IF_NON_BLOCKING_CONNECT (check_connect = 0);
}
#if defined(sun) && !defined(USG5_4)
/* If we are using polling for input,
and we see input available, make it get read now.
Otherwise it might not actually get read for a second.
- And on hpux, since we turn off polling in wait_reading_process_input,
+ And on hpux, since we turn off polling in wait_reading_process_output,
it might never get read at all if we don't spend much time
- outside of wait_reading_process_input. */
- if (XINT (read_kbd) && interrupt_input
+ outside of wait_reading_process_output. */
+ if (read_kbd && interrupt_input
&& keyboard_bit_set (&Available)
&& input_polling_used ())
kill (getpid (), SIGALRM);
/* If there is any, return immediately
to give it higher priority than subprocesses */
- if (XINT (read_kbd) != 0)
+ if (read_kbd != 0)
{
int old_timers_run = timers_run;
struct buffer *old_buffer = current_buffer;
}
/* If there is unread keyboard input, also return. */
- if (XINT (read_kbd) != 0
+ if (read_kbd != 0
&& requeued_events_pending_p ())
break;
That would causes delays in pasting selections, for example.
(We used to do this only if wait_for_cell.) */
- if (XINT (read_kbd) == 0 && detect_input_pending ())
+ if (read_kbd == 0 && detect_input_pending ())
{
swallow_events (do_display);
#if 0 /* Exiting when read_kbd doesn't request that seems wrong, though. */
In that case, there really is no input and no SIGIO,
but select says there is input. */
- if (XINT (read_kbd) && interrupt_input
+ if (read_kbd && interrupt_input
&& keyboard_bit_set (&Available) && ! noninteractive)
kill (getpid (), SIGIO);
#endif
/* If checking input just got us a size-change event from X,
obey it now if we should. */
- if (XINT (read_kbd) || ! NILP (wait_for_cell))
+ if (read_kbd || ! NILP (wait_for_cell))
do_pending_window_change (0);
/* Check for data from a process. */
/* Preserve status of processes already terminated. */
XSETINT (XPROCESS (proc)->tick, ++process_tick);
deactivate_process (proc);
- if (!NILP (XPROCESS (proc)->raw_status_low))
+ if (XPROCESS (proc)->raw_status_new)
update_status (XPROCESS (proc));
if (EQ (XPROCESS (proc)->status, Qrun))
XPROCESS (proc)->status
}
}
#ifdef NON_BLOCKING_CONNECT
- if (check_connect && FD_ISSET (channel, &Connecting))
+ if (check_connect && FD_ISSET (channel, &Connecting)
+ && FD_ISSET (channel, &connect_wait_mask))
{
struct Lisp_Process *p;
} /* end for each file descriptor */
} /* end while exit conditions not met */
- waiting_for_user_input_p = 0;
+ waiting_for_user_input_p = saved_waiting_for_user_input_p;
/* If calling from keyboard input, do not quit
since we want to return C-g as an input character.
Otherwise, do pending quit if requested. */
- if (XINT (read_kbd) >= 0)
+ if (read_kbd >= 0)
{
/* Prevent input_pending from remaining set if we quit. */
clear_input_pending ();
starting with our buffered-ahead character if we have one.
Yield number of decoded characters read.
- This function reads at most 1024 characters.
+ This function reads at most 4096 characters.
If you want to read all available subprocess output,
you must call it repeatedly until it returns zero.
The characters read are decoded according to PROC's coding-system
for decoding. */
-int
+static int
read_process_output (proc, channel)
Lisp_Object proc;
register int channel;
register int opoint;
struct coding_system *coding = proc_decode_coding_system[channel];
int carryover = XINT (p->decoding_carryover);
- int readmax = 1024;
+ int readmax = 4096;
#ifdef VMS
VMS_PROC_STUFF *vs, *get_vms_process_pointer();
}
#else /* not VMS */
-#ifdef DATAGRAM_SOCKETS
- /* A datagram is one packet; allow at least 1500+ bytes of data
- corresponding to the typical Ethernet frame size. */
- if (DATAGRAM_CHAN_P (channel))
- {
- /* carryover = 0; */ /* Does carryover make sense for datagrams? */
- readmax += 1024;
- }
-#endif
-
chars = (char *) alloca (carryover + readmax);
if (carryover)
/* See the comment above. */
if (DATAGRAM_CHAN_P (channel))
{
int len = datagram_address[channel].len;
- nbytes = recvfrom (channel, chars + carryover, readmax - carryover,
+ nbytes = recvfrom (channel, chars + carryover, readmax,
0, datagram_address[channel].sa, &len);
}
else
#endif
if (proc_buffered_char[channel] < 0)
- nbytes = emacs_read (channel, chars + carryover, readmax - carryover);
+ {
+ nbytes = emacs_read (channel, chars + carryover, readmax);
+#ifdef ADAPTIVE_READ_BUFFERING
+ if (nbytes > 0 && !NILP (p->adaptive_read_buffering))
+ {
+ int delay = XINT (p->read_output_delay);
+ if (nbytes < 256)
+ {
+ if (delay < READ_OUTPUT_DELAY_MAX_MAX)
+ {
+ if (delay == 0)
+ process_output_delay_count++;
+ delay += READ_OUTPUT_DELAY_INCREMENT * 2;
+ }
+ }
+ else if (delay > 0 && (nbytes == readmax))
+ {
+ delay -= READ_OUTPUT_DELAY_INCREMENT;
+ if (delay == 0)
+ process_output_delay_count--;
+ }
+ XSETINT (p->read_output_delay, delay);
+ if (delay)
+ {
+ p->read_output_skip = Qt;
+ process_output_skip = 1;
+ }
+ }
+#endif
+ }
else
{
chars[carryover] = proc_buffered_char[channel];
proc_buffered_char[channel] = -1;
- nbytes = emacs_read (channel, chars + carryover + 1, readmax - 1 - carryover);
+ nbytes = emacs_read (channel, chars + carryover + 1, readmax - 1);
if (nbytes < 0)
nbytes = 1;
else
{
Lisp_Object tem;
/* Don't clobber the CURRENT match data, either! */
- tem = Fmatch_data (Qnil, Qnil);
- restore_match_data ();
- record_unwind_protect (Fset_match_data, Fmatch_data (Qnil, Qnil));
- Fset_match_data (tem);
+ tem = Fmatch_data (Qnil, Qnil, Qnil);
+ restore_search_regs ();
+ record_unwind_save_match_data ();
+ Fset_match_data (tem, Qt);
}
/* For speed, if a search happens within this code,
}
carryover = nbytes - coding->consumed;
+ if (SCHARS (p->decoding_buf) < carryover)
+ p->decoding_buf = make_uninit_string (carryover);
bcopy (chars + coding->consumed, SDATA (p->decoding_buf),
carryover);
XSETINT (p->decoding_carryover, carryover);
read_process_output_error_handler);
/* If we saved the match data nonrecursively, restore it now. */
- restore_match_data ();
+ restore_search_regs ();
running_asynch_code = outer_running_asynch_code;
/* Handling the process output should not deactivate the mark. */
}
}
carryover = nbytes - coding->consumed;
+ if (SCHARS (p->decoding_buf) < carryover)
+ p->decoding_buf = make_uninit_string (carryover);
bcopy (chars + coding->consumed, SDATA (p->decoding_buf),
carryover);
XSETINT (p->decoding_carryover, carryover);
DEFUN ("waiting-for-user-input-p", Fwaiting_for_user_input_p, Swaiting_for_user_input_p,
0, 0, 0,
- doc: /* Returns non-nil if emacs is waiting for input from the user.
+ doc: /* Returns non-nil if Emacs is waiting for input from the user.
This is intended for use by asynchronous process output filters and sentinels. */)
()
{
SIGTYPE
send_process_trap ()
{
+ SIGNAL_THREAD_CHECK (SIGPIPE);
#ifdef BSD4_1
sigrelse (SIGPIPE);
sigrelse (SIGALRM);
#endif /* BSD4_1 */
+ sigunblock (sigmask (SIGPIPE));
longjmp (send_process_frame, 1);
}
This function can evaluate Lisp code and can garbage collect. */
-void
+static void
send_process (proc, buf, len, object)
volatile Lisp_Object proc;
unsigned char *volatile buf;
volatile Lisp_Object object;
{
/* Use volatile to protect variables from being clobbered by longjmp. */
+ struct Lisp_Process *p = XPROCESS (proc);
int rv;
struct coding_system *coding;
struct gcpro gcpro1;
+ SIGTYPE (*volatile old_sigpipe) ();
GCPRO1 (object);
#ifdef VMS
- struct Lisp_Process *p = XPROCESS (proc);
VMS_PROC_STUFF *vs, *get_vms_process_pointer();
#endif /* VMS */
- if (! NILP (XPROCESS (proc)->raw_status_low))
- update_status (XPROCESS (proc));
- if (! EQ (XPROCESS (proc)->status, Qrun))
- error ("Process %s not running",
- SDATA (XPROCESS (proc)->name));
- if (XINT (XPROCESS (proc)->outfd) < 0)
- error ("Output file descriptor of %s is closed",
- SDATA (XPROCESS (proc)->name));
+ if (p->raw_status_new)
+ update_status (p);
+ if (! EQ (p->status, Qrun))
+ error ("Process %s not running", SDATA (p->name));
+ if (XINT (p->outfd) < 0)
+ error ("Output file descriptor of %s is closed", SDATA (p->name));
- coding = proc_encode_coding_system[XINT (XPROCESS (proc)->outfd)];
+ coding = proc_encode_coding_system[XINT (p->outfd)];
Vlast_coding_system_used = coding->symbol;
if ((STRINGP (object) && STRING_MULTIBYTE (object))
&& !NILP (XBUFFER (object)->enable_multibyte_characters))
|| EQ (object, Qt))
{
- if (!EQ (coding->symbol, XPROCESS (proc)->encode_coding_system))
+ if (!EQ (coding->symbol, p->encode_coding_system))
/* The coding system for encoding was changed to raw-text
because we sent a unibyte text previously. Now we are
sending a multibyte text, thus we must encode it by the
- original coding system specified for the current
- process. */
- setup_coding_system (XPROCESS (proc)->encode_coding_system, coding);
+ original coding system specified for the current process. */
+ setup_coding_system (p->encode_coding_system, coding);
/* src_multibyte should be set to 1 _after_ a call to
setup_coding_system, since it resets src_multibyte to
zero. */
{
int require = encoding_buffer_size (coding, len);
int from_byte = -1, from = -1, to = -1;
- unsigned char *temp_buf = NULL;
if (BUFFERP (object))
{
coding->composing = COMPOSITION_DISABLED;
}
- if (SBYTES (XPROCESS (proc)->encoding_buf) < require)
- XPROCESS (proc)->encoding_buf = make_uninit_string (require);
+ if (SBYTES (p->encoding_buf) < require)
+ p->encoding_buf = make_uninit_string (require);
if (from_byte >= 0)
buf = (BUFFERP (object)
? BUF_BYTE_ADDRESS (XBUFFER (object), from_byte)
: SDATA (object) + from_byte);
- object = XPROCESS (proc)->encoding_buf;
+ object = p->encoding_buf;
encode_coding (coding, (char *) buf, SDATA (object),
len, SBYTES (object));
+ coding_free_composition_data (coding);
len = coding->produced;
buf = SDATA (object);
- if (temp_buf)
- xfree (temp_buf);
}
#ifdef VMS
if (pty_max_bytes == 0)
{
#if defined (HAVE_FPATHCONF) && defined (_PC_MAX_CANON)
- pty_max_bytes = fpathconf (XFASTINT (XPROCESS (proc)->outfd),
- _PC_MAX_CANON);
+ pty_max_bytes = fpathconf (XFASTINT (p->outfd), _PC_MAX_CANON);
if (pty_max_bytes < 0)
pty_max_bytes = 250;
#else
while (len > 0)
{
int this = len;
- SIGTYPE (*old_sigpipe)();
/* Decide how much data we can send in one batch.
Long lines need to be split into multiple batches. */
- if (!NILP (XPROCESS (proc)->pty_flag))
+ if (!NILP (p->pty_flag))
{
/* Starting this at zero is always correct when not the first
iteration because the previous iteration ended by sending C-d.
/* Send this batch, using one or more write calls. */
while (this > 0)
{
- int outfd = XINT (XPROCESS (proc)->outfd);
+ int outfd = XINT (p->outfd);
old_sigpipe = (SIGTYPE (*) ()) signal (SIGPIPE, send_process_trap);
#ifdef DATAGRAM_SOCKETS
if (DATAGRAM_CHAN_P (outfd))
0, datagram_address[outfd].sa,
datagram_address[outfd].len);
if (rv < 0 && errno == EMSGSIZE)
- report_file_error ("sending datagram", Fcons (proc, Qnil));
+ {
+ signal (SIGPIPE, old_sigpipe);
+ report_file_error ("sending datagram",
+ Fcons (proc, Qnil));
+ }
}
else
#endif
- rv = emacs_write (outfd, (char *) buf, this);
+ {
+ rv = emacs_write (outfd, (char *) buf, this);
+#ifdef ADAPTIVE_READ_BUFFERING
+ if (XINT (p->read_output_delay) > 0
+ && EQ (p->adaptive_read_buffering, Qt))
+ {
+ XSETFASTINT (p->read_output_delay, 0);
+ process_output_delay_count--;
+ p->read_output_skip = Qnil;
+ }
+#endif
+ }
signal (SIGPIPE, old_sigpipe);
if (rv < 0)
that may allow the program
to finish doing output and read more. */
{
- Lisp_Object zero;
int offset = 0;
#ifdef BROKEN_PTY_READ_AFTER_EAGAIN
if (errno == EAGAIN)
{
int flags = FWRITE;
- ioctl (XINT (XPROCESS (proc)->outfd), TIOCFLUSH,
- &flags);
+ ioctl (XINT (p->outfd), TIOCFLUSH, &flags);
}
#endif /* BROKEN_PTY_READ_AFTER_EAGAIN */
else if (STRINGP (object))
offset = buf - SDATA (object);
- XSETFASTINT (zero, 0);
#ifdef EMACS_HAS_USECS
- wait_reading_process_input (0, 20000, zero, 0);
+ wait_reading_process_output (0, 20000, 0, 0, Qnil, NULL, 0);
#else
- wait_reading_process_input (1, 0, zero, 0);
+ wait_reading_process_output (1, 0, 0, 0, Qnil, NULL, 0);
#endif
if (BUFFERP (object))
#endif /* not VMS */
else
{
+ signal (SIGPIPE, old_sigpipe);
#ifndef VMS
proc = process_sent_to;
+ p = XPROCESS (proc);
#endif
- XPROCESS (proc)->raw_status_low = Qnil;
- XPROCESS (proc)->raw_status_high = Qnil;
- XPROCESS (proc)->status = Fcons (Qexit, Fcons (make_number (256), Qnil));
- XSETINT (XPROCESS (proc)->tick, ++process_tick);
+ p->raw_status_new = 0;
+ p->status = Fcons (Qexit, Fcons (make_number (256), Qnil));
+ XSETINT (p->tick, ++process_tick);
deactivate_process (proc);
#ifdef VMS
- error ("Error writing to process %s; closed it",
- SDATA (XPROCESS (proc)->name));
+ error ("Error writing to process %s; closed it", SDATA (p->name));
#else
- error ("SIGPIPE raised on process %s; closed it",
- SDATA (XPROCESS (proc)->name));
+ error ("SIGPIPE raised on process %s; closed it", SDATA (p->name));
#endif
}
{
int gid = -1;
-#ifdef TIOCGPGRP
+#ifdef TIOCGPGRP
if (ioctl (XINT (p->infd), TIOCGPGRP, &gid) == -1 && ! NILP (p->tty_name))
{
int fd;
gid = emacs_get_tty_pgrp (p);
- if (gid == XFASTINT (p->pid))
+ if (gid == p->pid)
return Qnil;
return Qt;
}
/* If we are using pgrps, get a pgrp number and make it negative. */
if (NILP (current_group))
/* Send the signal to the shell's process group. */
- gid = XFASTINT (p->pid);
+ gid = p->pid;
else
{
#ifdef SIGNALS_VIA_CHARACTERS
work. If the system has it, use it. */
#ifdef HAVE_TERMIOS
struct termios t;
+ cc_t *sig_char = NULL;
+
+ tcgetattr (XINT (p->infd), &t);
switch (signo)
{
case SIGINT:
- tcgetattr (XINT (p->infd), &t);
- send_process (proc, &t.c_cc[VINTR], 1, Qnil);
- return;
+ sig_char = &t.c_cc[VINTR];
+ break;
case SIGQUIT:
- tcgetattr (XINT (p->infd), &t);
- send_process (proc, &t.c_cc[VQUIT], 1, Qnil);
- return;
+ sig_char = &t.c_cc[VQUIT];
+ break;
case SIGTSTP:
- tcgetattr (XINT (p->infd), &t);
#if defined (VSWTCH) && !defined (PREFER_VSUSP)
- send_process (proc, &t.c_cc[VSWTCH], 1, Qnil);
+ sig_char = &t.c_cc[VSWTCH];
#else
- send_process (proc, &t.c_cc[VSUSP], 1, Qnil);
+ sig_char = &t.c_cc[VSUSP];
#endif
- return;
+ break;
}
+ if (sig_char && *sig_char != CDISABLE)
+ {
+ send_process (proc, sig_char, 1, Qnil);
+ return;
+ }
+ /* If we can't send the signal with a character,
+ fall through and send it another way. */
#else /* ! HAVE_TERMIOS */
/* On Berkeley descendants, the following IOCTL's retrieve the
you'd better be using one of the alternatives above! */
#endif /* ! defined (TCGETA) */
#endif /* ! defined (TIOCGLTC) && defined (TIOCGETC) */
-#endif /* ! defined HAVE_TERMIOS */
+ /* In this case, the code above should alway returns. */
abort ();
- /* The code above always returns from the function. */
+#endif /* ! defined HAVE_TERMIOS */
+
+ /* The code above may fall through if it can't
+ handle the signal. */
#endif /* defined (SIGNALS_VIA_CHARACTERS) */
#ifdef TIOCGPGRP
we should just assume that p->pid is also the process group id. */
gid = emacs_get_tty_pgrp (p);
-
+
if (gid == -1)
/* If we can't get the information, assume
the shell owns the tty. */
- gid = XFASTINT (p->pid);
+ gid = p->pid;
/* It is not clear whether anything really can set GID to -1.
Perhaps on some system one of those ioctls can or could do so.
#else /* ! defined (TIOCGPGRP ) */
/* Can't select pgrps on this system, so we know that
the child itself heads the pgrp. */
- gid = XFASTINT (p->pid);
+ gid = p->pid;
#endif /* ! defined (TIOCGPGRP ) */
/* If current_group is lambda, and the shell owns the terminal,
don't send any signal. */
- if (EQ (current_group, Qlambda) && gid == XFASTINT (p->pid))
+ if (EQ (current_group, Qlambda) && gid == p->pid)
return;
}
{
#ifdef SIGCONT
case SIGCONT:
- p->raw_status_low = Qnil;
- p->raw_status_high = Qnil;
+ p->raw_status_new = 0;
p->status = Qrun;
XSETINT (p->tick, ++process_tick);
if (!nomsg)
- status_notify ();
+ status_notify (NULL);
break;
#endif /* ! defined (SIGCONT) */
case SIGINT:
#endif
case SIGKILL:
#ifdef VMS
- sys$forcex (&(XFASTINT (p->pid)), 0, 1);
+ sys$forcex (&(p->pid), 0, 1);
whoosh:
#endif
flush_pending_output (XINT (p->infd));
obvious alternative. */
if (no_pgrp)
{
- kill (XFASTINT (p->pid), signo);
+ kill (p->pid, signo);
return;
}
}
else
{
- gid = - XFASTINT (p->pid);
+ gid = - p->pid;
kill (gid, signo);
}
#else /* ! defined (TIOCSIGSEND) */
DEFUN ("interrupt-process", Finterrupt_process, Sinterrupt_process, 0, 2, 0,
doc: /* Interrupt process PROCESS.
PROCESS may be a process, a buffer, or the name of a process or buffer.
-nil or no arg means current buffer's process.
+No arg or nil means current buffer's process.
Second arg CURRENT-GROUP non-nil means send signal to
the current process-group of the process's controlling terminal
rather than to the process's own process group.
}
#endif
#ifndef SIGTSTP
- error ("no SIGTSTP support");
+ error ("No SIGTSTP support");
#else
process_send_signal (process, SIGTSTP, current_group, 0);
#endif
#ifdef SIGCONT
process_send_signal (process, SIGCONT, current_group, 0);
#else
- error ("no SIGCONT support");
+ error ("No SIGCONT support");
#endif
return process;
}
(process, sigcode)
Lisp_Object process, sigcode;
{
- Lisp_Object pid;
+ pid_t pid;
if (INTEGERP (process))
{
- pid = process;
+ pid = XINT (process);
+ goto got_it;
+ }
+
+ if (FLOATP (process))
+ {
+ pid = (pid_t) XFLOAT (process);
goto got_it;
}
Lisp_Object tem;
if (tem = Fget_process (process), NILP (tem))
{
- pid = Fstring_to_number (process, make_number (10));
- if (XINT (pid) != 0)
+ pid = XINT (Fstring_to_number (process, make_number (10)));
+ if (pid > 0)
goto got_it;
}
process = tem;
CHECK_PROCESS (process);
pid = XPROCESS (process)->pid;
- if (!INTEGERP (pid) || XINT (pid) <= 0)
+ if (pid <= 0)
error ("Cannot signal process %s", SDATA (XPROCESS (process)->name));
got_it:
CHECK_SYMBOL (sigcode);
name = SDATA (SYMBOL_NAME (sigcode));
+ if (!strncmp(name, "SIG", 3))
+ name += 3;
+
if (0)
;
#ifdef SIGHUP
- handle_signal ("SIGHUP", SIGHUP);
+ handle_signal ("HUP", SIGHUP);
#endif
#ifdef SIGINT
- handle_signal ("SIGINT", SIGINT);
+ handle_signal ("INT", SIGINT);
#endif
#ifdef SIGQUIT
- handle_signal ("SIGQUIT", SIGQUIT);
+ handle_signal ("QUIT", SIGQUIT);
#endif
#ifdef SIGILL
- handle_signal ("SIGILL", SIGILL);
+ handle_signal ("ILL", SIGILL);
#endif
#ifdef SIGABRT
- handle_signal ("SIGABRT", SIGABRT);
+ handle_signal ("ABRT", SIGABRT);
#endif
#ifdef SIGEMT
- handle_signal ("SIGEMT", SIGEMT);
+ handle_signal ("EMT", SIGEMT);
#endif
#ifdef SIGKILL
- handle_signal ("SIGKILL", SIGKILL);
+ handle_signal ("KILL", SIGKILL);
#endif
#ifdef SIGFPE
- handle_signal ("SIGFPE", SIGFPE);
+ handle_signal ("FPE", SIGFPE);
#endif
#ifdef SIGBUS
- handle_signal ("SIGBUS", SIGBUS);
+ handle_signal ("BUS", SIGBUS);
#endif
#ifdef SIGSEGV
- handle_signal ("SIGSEGV", SIGSEGV);
+ handle_signal ("SEGV", SIGSEGV);
#endif
#ifdef SIGSYS
- handle_signal ("SIGSYS", SIGSYS);
+ handle_signal ("SYS", SIGSYS);
#endif
#ifdef SIGPIPE
- handle_signal ("SIGPIPE", SIGPIPE);
+ handle_signal ("PIPE", SIGPIPE);
#endif
#ifdef SIGALRM
- handle_signal ("SIGALRM", SIGALRM);
+ handle_signal ("ALRM", SIGALRM);
#endif
#ifdef SIGTERM
- handle_signal ("SIGTERM", SIGTERM);
+ handle_signal ("TERM", SIGTERM);
#endif
#ifdef SIGURG
- handle_signal ("SIGURG", SIGURG);
+ handle_signal ("URG", SIGURG);
#endif
#ifdef SIGSTOP
- handle_signal ("SIGSTOP", SIGSTOP);
+ handle_signal ("STOP", SIGSTOP);
#endif
#ifdef SIGTSTP
- handle_signal ("SIGTSTP", SIGTSTP);
+ handle_signal ("TSTP", SIGTSTP);
#endif
#ifdef SIGCONT
- handle_signal ("SIGCONT", SIGCONT);
+ handle_signal ("CONT", SIGCONT);
#endif
#ifdef SIGCHLD
- handle_signal ("SIGCHLD", SIGCHLD);
+ handle_signal ("CHLD", SIGCHLD);
#endif
#ifdef SIGTTIN
- handle_signal ("SIGTTIN", SIGTTIN);
+ handle_signal ("TTIN", SIGTTIN);
#endif
#ifdef SIGTTOU
- handle_signal ("SIGTTOU", SIGTTOU);
+ handle_signal ("TTOU", SIGTTOU);
#endif
#ifdef SIGIO
- handle_signal ("SIGIO", SIGIO);
+ handle_signal ("IO", SIGIO);
#endif
#ifdef SIGXCPU
- handle_signal ("SIGXCPU", SIGXCPU);
+ handle_signal ("XCPU", SIGXCPU);
#endif
#ifdef SIGXFSZ
- handle_signal ("SIGXFSZ", SIGXFSZ);
+ handle_signal ("XFSZ", SIGXFSZ);
#endif
#ifdef SIGVTALRM
- handle_signal ("SIGVTALRM", SIGVTALRM);
+ handle_signal ("VTALRM", SIGVTALRM);
#endif
#ifdef SIGPROF
- handle_signal ("SIGPROF", SIGPROF);
+ handle_signal ("PROF", SIGPROF);
#endif
#ifdef SIGWINCH
- handle_signal ("SIGWINCH", SIGWINCH);
+ handle_signal ("WINCH", SIGWINCH);
#endif
#ifdef SIGINFO
- handle_signal ("SIGINFO", SIGINFO);
+ handle_signal ("INFO", SIGINFO);
#endif
#ifdef SIGUSR1
- handle_signal ("SIGUSR1", SIGUSR1);
+ handle_signal ("USR1", SIGUSR1);
#endif
#ifdef SIGUSR2
- handle_signal ("SIGUSR2", SIGUSR2);
+ handle_signal ("USR2", SIGUSR2);
#endif
else
error ("Undefined signal name %s", name);
#undef handle_signal
- return make_number (kill (XINT (pid), XINT (sigcode)));
+ return make_number (kill (pid, XINT (sigcode)));
}
DEFUN ("process-send-eof", Fprocess_send_eof, Sprocess_send_eof, 0, 1, 0,
coding = proc_encode_coding_system[XINT (XPROCESS (proc)->outfd)];
/* Make sure the process is really alive. */
- if (! NILP (XPROCESS (proc)->raw_status_low))
+ if (XPROCESS (proc)->raw_status_new)
update_status (XPROCESS (proc));
if (! EQ (XPROCESS (proc)->status, Qrun))
error ("Process %s not running", SDATA (XPROCESS (proc)->name));
for communication with the subprocess, call shutdown to cause EOF.
(In some old system, shutdown to socketpair doesn't work.
Then we just can't win.) */
- if (NILP (XPROCESS (proc)->pid)
+ if (XPROCESS (proc)->pid == 0
|| XINT (XPROCESS (proc)->outfd) == XINT (XPROCESS (proc)->infd))
shutdown (XINT (XPROCESS (proc)->outfd), 1);
/* In case of socketpair, outfd == infd, so don't close it. */
emacs_close (XINT (XPROCESS (proc)->outfd));
#endif /* not HAVE_SHUTDOWN */
new_outfd = emacs_open (NULL_DEVICE, O_WRONLY, 0);
+ if (new_outfd < 0)
+ abort ();
old_outfd = XINT (XPROCESS (proc)->outfd);
if (!proc_encode_coding_system[new_outfd])
queued and the signal-catching function will be continually
reentered until the queue is empty". Invoking signal() causes the
kernel to reexamine the SIGCLD queue. Fred Fish, UniSoft Systems
- Inc. */
+ Inc.
+
+ ** Malloc WARNING: This should never call malloc either directly or
+ indirectly; if it does, that is a bug */
SIGTYPE
sigchld_handler (signo)
register struct Lisp_Process *p;
extern EMACS_TIME *input_available_clear_time;
+ SIGNAL_THREAD_CHECK (signo);
+
#ifdef BSD4_1
extern int sigheld;
sigheld |= sigbit (SIGCHLD);
{
proc = XCDR (XCAR (tail));
p = XPROCESS (proc);
- if (GC_EQ (p->childp, Qt) && XINT (p->pid) == pid)
+ if (GC_EQ (p->childp, Qt) && p->pid == pid)
break;
p = 0;
}
{
proc = XCDR (XCAR (tail));
p = XPROCESS (proc);
- if (GC_INTEGERP (p->pid) && XINT (p->pid) == -1)
+ if (p->pid == -1)
break;
p = 0;
}
XSETINT (p->tick, ++process_tick);
u.wt = w;
- XSETINT (p->raw_status_low, u.i & 0xffff);
- XSETINT (p->raw_status_high, u.i >> 16);
+ p->raw_status = u.i;
+ p->raw_status_new = 1;
/* If process has terminated, stop waiting for its output. */
if ((WIFSIGNALED (w) || WIFEXITED (w))
FD_CLR (XINT (p->infd), &non_keyboard_wait_mask);
}
- /* Tell wait_reading_process_input that it needs to wake up and
+ /* Tell wait_reading_process_output that it needs to wake up and
look around. */
if (input_available_clear_time)
EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0);
if (WIFEXITED (w))
synch_process_retcode = WRETCODE (w);
else if (WIFSIGNALED (w))
- {
- int code = WTERMSIG (w);
- char *signame;
-
- synchronize_system_messages_locale ();
- signame = strsignal (code);
-
- if (signame == 0)
- signame = "unknown";
+ synch_process_termsig = WTERMSIG (w);
- synch_process_death = signame;
- }
-
- /* Tell wait_reading_process_input that it needs to wake up and
+ /* Tell wait_reading_process_output that it needs to wake up and
look around. */
if (input_available_clear_time)
EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0);
if (outer_running_asynch_code)
{
Lisp_Object tem;
- tem = Fmatch_data (Qnil, Qnil);
- restore_match_data ();
- record_unwind_protect (Fset_match_data, Fmatch_data (Qnil, Qnil));
- Fset_match_data (tem);
+ tem = Fmatch_data (Qnil, Qnil, Qnil);
+ restore_search_regs ();
+ record_unwind_save_match_data ();
+ Fset_match_data (tem, Qt);
}
/* For speed, if a search happens within this code,
exec_sentinel_error_handler);
/* If we saved the match data nonrecursively, restore it now. */
- restore_match_data ();
+ restore_search_regs ();
running_asynch_code = outer_running_asynch_code;
Vdeactivate_mark = odeactivate;
This is usually done while Emacs is waiting for keyboard input
but can be done at other times. */
-void
-status_notify ()
+static void
+status_notify (deleting_process)
+ struct Lisp_Process *deleting_process;
{
register Lisp_Object proc, buffer;
Lisp_Object tail, msg;
&& ! EQ (p->status, Qlisten)
&& ! EQ (p->command, Qt) /* Network process not stopped. */
&& XINT (p->infd) >= 0
+ && p != deleting_process
&& read_process_output (proc, XINT (p->infd)) > 0);
buffer = p->buffer;
/* Get the text to use for the message. */
- if (!NILP (p->raw_status_low))
+ if (p->raw_status_new)
update_status (p);
- msg = status_message (p->status);
+ msg = status_message (p);
/* If process is terminated, deactivate it or delete it. */
symbol = p->status;
doc: /* Set coding systems of PROCESS to DECODING and ENCODING.
DECODING will be used to decode subprocess output and ENCODING to
encode subprocess input. */)
- (proc, decoding, encoding)
- register Lisp_Object proc, decoding, encoding;
+ (process, decoding, encoding)
+ register Lisp_Object process, decoding, encoding;
{
register struct Lisp_Process *p;
- CHECK_PROCESS (proc);
- p = XPROCESS (proc);
+ CHECK_PROCESS (process);
+ p = XPROCESS (process);
if (XINT (p->infd) < 0)
error ("Input file descriptor of %s closed", SDATA (p->name));
if (XINT (p->outfd) < 0)
p->decode_coding_system = decoding;
p->encode_coding_system = encoding;
- setup_process_coding_systems (proc);
+ setup_process_coding_systems (process);
return Qnil;
}
DEFUN ("process-coding-system",
Fprocess_coding_system, Sprocess_coding_system, 1, 1, 0,
doc: /* Return a cons of coding systems for decoding and encoding of PROCESS. */)
- (proc)
- register Lisp_Object proc;
+ (process)
+ register Lisp_Object process;
{
- CHECK_PROCESS (proc);
- return Fcons (XPROCESS (proc)->decode_coding_system,
- XPROCESS (proc)->encode_coding_system);
+ CHECK_PROCESS (process);
+ return Fcons (XPROCESS (process)->decode_coding_system,
+ XPROCESS (process)->encode_coding_system);
}
DEFUN ("set-process-filter-multibyte", Fset_process_filter_multibyte,
If FLAG is nil, the filter is given unibyte strings. In this case,
all character code conversion except for end-of-line conversion is
suppressed. */)
- (proc, flag)
- Lisp_Object proc, flag;
+ (process, flag)
+ Lisp_Object process, flag;
{
register struct Lisp_Process *p;
- CHECK_PROCESS (proc);
- p = XPROCESS (proc);
+ CHECK_PROCESS (process);
+ p = XPROCESS (process);
p->filter_multibyte = flag;
- setup_process_coding_systems (proc);
+ setup_process_coding_systems (process);
return Qnil;
}
DEFUN ("process-filter-multibyte-p", Fprocess_filter_multibyte_p,
Sprocess_filter_multibyte_p, 1, 1, 0,
doc: /* Return t if a multibyte string is given to PROCESS's filter.*/)
- (proc)
- Lisp_Object proc;
+ (process)
+ Lisp_Object process;
{
register struct Lisp_Process *p;
- CHECK_PROCESS (proc);
- p = XPROCESS (proc);
+ CHECK_PROCESS (process);
+ p = XPROCESS (process);
return (NILP (p->filter_multibyte) ? Qnil : Qt);
}
/* Return nonzero if *MASK has a bit set
that corresponds to one of the keyboard input descriptors. */
-int
+static int
keyboard_bit_set (mask)
SELECT_TYPE *mask;
{
FD_ZERO (&non_process_wait_mask);
max_process_desc = 0;
+#ifdef NON_BLOCKING_CONNECT
+ FD_ZERO (&connect_wait_mask);
+ num_pending_connects = 0;
+#endif
+
+#ifdef ADAPTIVE_READ_BUFFERING
+ process_output_delay_count = 0;
+ process_output_skip = 0;
+#endif
+
FD_SET (0, &input_wait_mask);
Vprocess_alist = Qnil;
#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);
Fprovide (intern ("make-network-process"), subfeatures);
}
#endif /* HAVE_SOCKETS */
+
+#if defined (DARWIN) || defined (MAC_OSX)
+ /* PTYs are broken on Darwin < 6, but are sometimes useful for interactive
+ processes. As such, we only change the default value. */
+ if (initialized)
+ {
+ char *release = get_operating_system_release();
+ if (!release || !release[0] || (release[0] < MIN_PTY_KERNEL_VERSION
+ && release[1] == '.')) {
+ Vprocess_connection_type = Qnil;
+ }
+ }
+#endif
}
void
staticpro (&Qlisten);
Qlocal = intern ("local");
staticpro (&Qlocal);
+ Qipv4 = intern ("ipv4");
+ staticpro (&Qipv4);
+#ifdef AF_INET6
+ Qipv6 = intern ("ipv6");
+ staticpro (&Qipv6);
+#endif
Qdatagram = intern ("datagram");
staticpro (&Qdatagram);
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
+is read in very small blocks, potentially resulting in very poor performance.
+This behavior can be remedied to some extent by setting this variable to a
+non-nil value, as it will automatically delay reading from such processes, to
+allow them to produce more output before Emacs tries to read it.
+If the value is t, the delay is reset after each write to the process; any other
+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 (&Sget_buffer_process);
1 to return when input is available, or
-1 means caller will actually read the input, so don't throw to
the quit handler.
- a cons cell, meaning wait until its car is non-nil
- (and gobble terminal input into the buffer if any arrives), or
- We know that read_kbd will never be a Lisp_Process, since
- `subprocesses' isn't defined.
+
+ see full version for other parameters. We know that wait_proc will
+ always be NULL, since `subprocesses' isn't defined.
do_display != 0 means redisplay should be done to show subprocess
output that arrives.
Return true iff we received input from any process. */
int
-wait_reading_process_input (time_limit, microsecs, read_kbd, do_display)
- int time_limit, microsecs;
- Lisp_Object read_kbd;
- int do_display;
+wait_reading_process_output (time_limit, microsecs, read_kbd, do_display,
+ wait_for_cell, wait_proc, just_wait_proc)
+ int time_limit, microsecs, read_kbd, do_display;
+ Lisp_Object wait_for_cell;
+ struct Lisp_Process *wait_proc;
+ int just_wait_proc;
{
register int nfds;
EMACS_TIME end_time, timeout;
SELECT_TYPE waitchannels;
int xerrno;
- /* Either nil or a cons cell, the car of which is of interest and
- may be changed outside of this routine. */
- Lisp_Object wait_for_cell;
-
- wait_for_cell = Qnil;
-
- /* If waiting for non-nil in a cell, record where. */
- if (CONSP (read_kbd))
- {
- wait_for_cell = read_kbd;
- XSETFASTINT (read_kbd, 0);
- }
/* What does time_limit really mean? */
if (time_limit || microsecs)
/* If calling from keyboard input, do not quit
since we want to return C-g as an input character.
Otherwise, do pending quit if requested. */
- if (XINT (read_kbd) >= 0)
+ if (read_kbd >= 0)
QUIT;
/* Exit now if the cell we're waiting for became non-nil. */
while (!detect_input_pending ());
/* If there is unread keyboard input, also return. */
- if (XINT (read_kbd) != 0
+ if (read_kbd != 0
&& requeued_events_pending_p ())
break;
/* Cause C-g and alarm signals to take immediate action,
and cause input available signals to zero out timeout. */
- if (XINT (read_kbd) < 0)
+ if (read_kbd < 0)
set_waiting_for_input (&timeout);
/* Wait till there is something to do. */
- if (! XINT (read_kbd) && NILP (wait_for_cell))
+ if (! read_kbd && NILP (wait_for_cell))
FD_ZERO (&waitchannels);
else
FD_SET (0, &waitchannels);
{
clear_waiting_for_input ();
redisplay_preserve_echo_area (15);
- if (XINT (read_kbd) < 0)
+ if (read_kbd < 0)
set_waiting_for_input (&timeout);
}
- if (XINT (read_kbd) && detect_input_pending ())
+ if (read_kbd && detect_input_pending ())
{
nfds = 0;
FD_ZERO (&waitchannels);
kill (getpid (), SIGIO);
#endif
#ifdef SIGIO
- if (XINT (read_kbd) && interrupt_input && (waitchannels & 1))
+ if (read_kbd && interrupt_input && (waitchannels & 1))
kill (getpid (), SIGIO);
#endif
/* Check for keyboard input */
- if ((XINT (read_kbd) != 0)
+ if (read_kbd
&& detect_input_pending_run_timers (do_display))
{
swallow_events (do_display);
}
/* If there is unread keyboard input, also return. */
- if (XINT (read_kbd) != 0
+ if (read_kbd
&& requeued_events_pending_p ())
break;