/* Definitions for asynchronous process control in GNU Emacs.
- Copyright (C) 1985, 1994, 2001-2012 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1994, 2001-2013 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include "gnutls.h"
#endif
-/* Most code should use this macro to access
- Lisp fields in struct Lisp_Process. */
+INLINE_HEADER_BEGIN
-#define PVAR(w, field) ((w)->INTERNAL_FIELD (field))
+/* Bound on number of file descriptors opened on behalf of a process,
+ that need to be closed. */
+
+enum { PROCESS_OPEN_FDS = 6 };
/* This structure records information about a subprocess
or network connection. */
struct vectorlike_header header;
/* Name of subprocess terminal. */
- Lisp_Object INTERNAL_FIELD (tty_name);
+ Lisp_Object tty_name;
/* Name of this process */
- Lisp_Object INTERNAL_FIELD (name);
+ Lisp_Object name;
/* List of command arguments that this process was run with.
Is set to t for a stopped network process; nil otherwise. */
- Lisp_Object INTERNAL_FIELD (command);
+ Lisp_Object command;
/* (funcall FILTER PROC STRING) (if FILTER is non-nil)
to dispose of a bunch of chars from the process all at once */
- Lisp_Object INTERNAL_FIELD (filter);
+ Lisp_Object filter;
/* (funcall SENTINEL PROCESS) when process state changes */
- Lisp_Object INTERNAL_FIELD (sentinel);
+ Lisp_Object sentinel;
/* (funcall LOG SERVER CLIENT MESSAGE) when a server process
accepts a connection from a client. */
- Lisp_Object INTERNAL_FIELD (log);
+ Lisp_Object log;
/* Buffer that output is going to */
- Lisp_Object INTERNAL_FIELD (buffer);
+ Lisp_Object buffer;
/* t if this is a real child process. For a network or serial
connection, it is a plist based on the arguments to
make-network-process or make-serial-process. */
- Lisp_Object INTERNAL_FIELD (childp);
+ Lisp_Object childp;
/* Plist for programs to keep per-process state information, parameters, etc. */
- Lisp_Object INTERNAL_FIELD (plist);
+ Lisp_Object plist;
/* Symbol indicating the type of process: real, network, serial */
- Lisp_Object INTERNAL_FIELD (type);
+ Lisp_Object type;
/* Marker set to end of last buffer-inserted output from this process */
- Lisp_Object INTERNAL_FIELD (mark);
+ Lisp_Object mark;
/* Symbol indicating status of process.
This may be a symbol: run, open, or closed.
Or it may be a list, whose car is stop, exit or signal
and whose cdr is a pair (EXIT_CODE . COREDUMP_FLAG)
or (SIGNAL_NUMBER . COREDUMP_FLAG). */
- Lisp_Object INTERNAL_FIELD (status);
+ Lisp_Object status;
/* Coding-system for decoding the input from this process. */
- Lisp_Object INTERNAL_FIELD (decode_coding_system);
+ Lisp_Object decode_coding_system;
/* Working buffer for decoding. */
- Lisp_Object INTERNAL_FIELD (decoding_buf);
+ Lisp_Object decoding_buf;
/* Coding-system for encoding the output to this process. */
- Lisp_Object INTERNAL_FIELD (encode_coding_system);
+ Lisp_Object encode_coding_system;
/* Working buffer for encoding. */
- Lisp_Object INTERNAL_FIELD (encoding_buf);
+ Lisp_Object encoding_buf;
/* Queue for storing waiting writes */
- Lisp_Object INTERNAL_FIELD (write_queue);
+ Lisp_Object write_queue;
#ifdef HAVE_GNUTLS
Lisp_Object gnutls_cred_type;
int infd;
/* Descriptor by which we write to this process */
int outfd;
+ /* Descriptors that were created for this process and that need
+ closing. Unused entries are negative. */
+ int open_fd[PROCESS_OPEN_FDS];
/* Event-count of last event in which this process changed status. */
EMACS_INT tick;
/* Event-count of last such event reported. */
0 = nil, 1 = t, 2 = other. */
unsigned int adaptive_read_buffering : 2;
/* Skip reading this process on next read. */
- unsigned int read_output_skip : 1;
- /* Non-nil means kill silently if Emacs is exited.
+ bool_bf read_output_skip : 1;
+ /* True means kill silently if Emacs is exited.
This is the inverse of the `query-on-exit' flag. */
- unsigned int kill_without_query : 1;
- /* Non-nil if communicating through a pty. */
- unsigned int pty_flag : 1;
+ bool_bf kill_without_query : 1;
+ /* True if communicating through a pty. */
+ bool_bf pty_flag : 1;
/* Flag to set coding-system of the process buffer from the
coding_system used to decode process output. */
- unsigned int inherit_coding_system_flag : 1;
+ bool_bf inherit_coding_system_flag : 1;
+ /* Whether the process is alive, i.e., can be waited for. Running
+ processes can be waited for, but exited and fake processes cannot. */
+ bool_bf alive : 1;
/* Record the process status in the raw form in which it comes from `wait'.
This is to avoid consing in a signal handler. The `raw_status_new'
flag indicates that `raw_status' contains a new status that still
needs to be synced to `status'. */
- unsigned int raw_status_new : 1;
+ bool_bf raw_status_new : 1;
int raw_status;
#ifdef HAVE_GNUTLS
gnutls_anon_client_credentials_t gnutls_anon_cred;
int gnutls_log_level;
int gnutls_handshakes_tried;
- int gnutls_p;
+ bool_bf gnutls_p : 1;
#endif
};
#define ChannelMask(n) (1 << (n))
-/* True if we are about to fork off a synchronous process or if we
- are waiting for it. */
-extern int synch_process_alive;
-
-/* Communicate exit status of sync process to from sigchld_handler
- to Fcall_process. */
+/* Most code should use these functions to set Lisp fields in struct
+ process. */
-/* Nonzero => this is a string explaining death of synchronous subprocess. */
-extern const char *synch_process_death;
+INLINE void
+pset_childp (struct Lisp_Process *p, Lisp_Object val)
+{
+ p->childp = val;
+}
-/* Nonzero => this is the signal number that terminated the subprocess. */
-extern int synch_process_termsig;
-
-/* If synch_process_death is zero,
- this is exit code of synchronous subprocess. */
-extern int synch_process_retcode;
+#ifdef HAVE_GNUTLS
+INLINE void
+pset_gnutls_cred_type (struct Lisp_Process *p, Lisp_Object val)
+{
+ p->gnutls_cred_type = val;
+}
+#endif
-/* Nonzero means don't run process sentinels. This is used
+/* True means don't run process sentinels. This is used
when exiting. */
-extern int inhibit_sentinels;
+extern bool inhibit_sentinels;
extern Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname;
extern Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime;
extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven;
extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary;
+/* Exit statuses for GNU programs that exec other programs. */
+enum
+{
+ EXIT_CANCELED = 125, /* Internal error prior to exec attempt. */
+ EXIT_CANNOT_INVOKE = 126, /* Program located, but not usable. */
+ EXIT_ENOENT = 127 /* Could not find program to exec. */
+};
+
+/* Defined in callproc.c. */
+
+extern void block_child_signal (void);
+extern void unblock_child_signal (void);
+extern Lisp_Object encode_current_directory (void);
+extern void record_kill_process (struct Lisp_Process *, Lisp_Object);
+
+/* Defined in sysdep.c. */
+
extern Lisp_Object list_system_processes (void);
extern Lisp_Object system_process_attributes (Lisp_Object);
+/* Defined in process.c. */
+
+extern void record_deleted_pid (pid_t, Lisp_Object);
+struct sockaddr;
+#ifdef WINDOWSNT
+extern Lisp_Object conv_sockaddr_to_lisp (struct sockaddr *, int);
+#endif
extern void hold_keyboard_input (void);
extern void unhold_keyboard_input (void);
-extern int kbd_on_hold_p (void);
+extern bool kbd_on_hold_p (void);
-typedef void (*fd_callback)(int fd, void *data, int for_read);
+typedef void (*fd_callback) (int fd, void *data);
extern void add_read_fd (int fd, fd_callback func, void *data);
extern void delete_read_fd (int fd);
extern void add_write_fd (int fd, fd_callback func, void *data);
extern void delete_write_fd (int fd);
+#ifdef NS_IMPL_GNUSTEP
+extern void catch_child_signal (void);
+#endif
+
+#ifdef WINDOWSNT
+extern Lisp_Object network_interface_list (void);
+extern Lisp_Object network_interface_info (Lisp_Object);
+#endif
+
+INLINE_HEADER_END