mirror of
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925a6be733
to compare Lisp_Objects. * src/gnutls.c (syms_of_gnutls): Rename Vgnutls_log_level to global_gnutls_log_level, don't mistake it for a Lisp_Object. (init_gnutls_functions, emacs_gnutls_handle_error): Fix up uses.
194 lines
7.3 KiB
C
194 lines
7.3 KiB
C
/* Definitions for asynchronous process control in GNU Emacs.
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Copyright (C) 1985, 1994, 2001-2011 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include <unistd.h>
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#ifdef HAVE_GNUTLS
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#include "gnutls.h"
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#endif
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/* This structure records information about a subprocess
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or network connection.
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Every field in this structure except for the header
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must be a Lisp_Object, for GC's sake. */
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struct Lisp_Process
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{
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struct vectorlike_header header;
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/* Name of subprocess terminal. */
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Lisp_Object tty_name;
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/* Name of this process */
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Lisp_Object name;
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/* List of command arguments that this process was run with.
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Is set to t for a stopped network process; nil otherwise. */
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Lisp_Object command;
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/* (funcall FILTER PROC STRING) (if FILTER is non-nil)
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to dispose of a bunch of chars from the process all at once */
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Lisp_Object filter;
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/* (funcall SENTINEL PROCESS) when process state changes */
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Lisp_Object sentinel;
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/* (funcall LOG SERVER CLIENT MESSAGE) when a server process
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accepts a connection from a client. */
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Lisp_Object log;
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/* Buffer that output is going to */
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Lisp_Object buffer;
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/* t if this is a real child process. For a network or serial
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connection, it is a plist based on the arguments to
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make-network-process or make-serial-process. */
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Lisp_Object childp;
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/* Plist for programs to keep per-process state information, parameters, etc. */
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Lisp_Object plist;
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/* Symbol indicating the type of process: real, network, serial */
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Lisp_Object type;
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/* Marker set to end of last buffer-inserted output from this process */
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Lisp_Object mark;
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/* Symbol indicating status of process.
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This may be a symbol: run, open, or closed.
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Or it may be a list, whose car is stop, exit or signal
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and whose cdr is a pair (EXIT_CODE . COREDUMP_FLAG)
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or (SIGNAL_NUMBER . COREDUMP_FLAG). */
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Lisp_Object status;
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/* Coding-system for decoding the input from this process. */
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Lisp_Object decode_coding_system;
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/* Working buffer for decoding. */
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Lisp_Object decoding_buf;
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/* Coding-system for encoding the output to this process. */
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Lisp_Object encode_coding_system;
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/* Working buffer for encoding. */
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Lisp_Object encoding_buf;
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#ifdef HAVE_GNUTLS
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Lisp_Object gnutls_cred_type;
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#endif
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/* After this point, there are no Lisp_Objects any more. */
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/* alloc.c assumes that `pid' is the first such non-Lisp slot. */
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/* Number of this process.
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allocate_process assumes this is the first non-Lisp_Object field.
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A value 0 is used for pseudo-processes such as network or serial
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connections. */
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pid_t pid;
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/* Descriptor by which we read from this process */
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int infd;
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/* Descriptor by which we write to this process */
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int outfd;
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/* Event-count of last event in which this process changed status. */
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int tick;
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/* Event-count of last such event reported. */
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int update_tick;
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/* Size of carryover in decoding. */
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int decoding_carryover;
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/* Hysteresis to try to read process output in larger blocks.
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On some systems, e.g. GNU/Linux, Emacs is seen as
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an interactive app also when reading process output, meaning
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that process output can be read in as little as 1 byte at a
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time. Value is micro-seconds to delay reading output from
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this process. Range is 0 .. 50000. */
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int read_output_delay;
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/* Should we delay reading output from this process.
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Initialized from `Vprocess_adaptive_read_buffering'.
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0 = nil, 1 = t, 2 = other. */
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unsigned int adaptive_read_buffering : 2;
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/* Skip reading this process on next read. */
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unsigned int read_output_skip : 1;
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/* Non-nil means kill silently if Emacs is exited.
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This is the inverse of the `query-on-exit' flag. */
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unsigned int kill_without_query : 1;
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/* Non-nil if communicating through a pty. */
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unsigned int pty_flag : 1;
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/* Flag to set coding-system of the process buffer from the
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coding_system used to decode process output. */
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unsigned int inherit_coding_system_flag : 1;
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/* Record the process status in the raw form in which it comes from `wait'.
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This is to avoid consing in a signal handler. The `raw_status_new'
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flag indicates that `raw_status' contains a new status that still
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needs to be synced to `status'. */
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unsigned int raw_status_new : 1;
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int raw_status;
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#ifdef HAVE_GNUTLS
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gnutls_initstage_t gnutls_initstage;
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gnutls_session_t gnutls_state;
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gnutls_certificate_client_credentials gnutls_x509_cred;
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gnutls_anon_client_credentials_t gnutls_anon_cred;
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int gnutls_log_level;
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int gnutls_p;
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#endif
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};
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/* Every field in the preceding structure except for the first two
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must be a Lisp_Object, for GC's sake. */
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#define ChannelMask(n) (1 << (n))
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/* True if we are about to fork off a synchronous process or if we
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are waiting for it. */
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extern int synch_process_alive;
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/* Communicate exit status of sync process to from sigchld_handler
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to Fcall_process. */
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/* Nonzero => this is a string explaining death of synchronous subprocess. */
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extern const char *synch_process_death;
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/* Nonzero => this is the signal number that terminated the subprocess. */
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extern int synch_process_termsig;
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/* If synch_process_death is zero,
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this is exit code of synchronous subprocess. */
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extern int synch_process_retcode;
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/* The name of the file open to get a null file, or a data sink.
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MS-DOS, and OS/2 redefine this. */
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#ifndef NULL_DEVICE
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#define NULL_DEVICE "/dev/null"
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#endif
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/* Nonzero means don't run process sentinels. This is used
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when exiting. */
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extern int inhibit_sentinels;
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extern Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname;
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extern Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime;
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extern Lisp_Object Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs;
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extern Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtpgid, Qcstime;
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extern Lisp_Object Qtime, Qctime;
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extern Lisp_Object QCspeed;
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extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven;
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extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary;
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extern Lisp_Object list_system_processes (void);
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extern Lisp_Object system_process_attributes (Lisp_Object);
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extern void hold_keyboard_input (void);
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extern void unhold_keyboard_input (void);
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extern int kbd_on_hold_p (void);
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typedef void (*fd_callback)(int fd, void *data, int for_read);
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extern void add_read_fd (int fd, fd_callback func, void *data);
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extern void delete_read_fd (int fd);
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extern void add_write_fd (int fd, fd_callback func, void *data);
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extern void delete_write_fd (int fd);
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