1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/* Definitions for asynchronous process control in GNU Emacs.
Copyright (C) 1985, 1994, 2001-2012 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <unistd.h>
#ifdef HAVE_GNUTLS
#include "gnutls.h"
#endif
INLINE_HEADER_BEGIN
#ifndef PROCESS_INLINE
# define PROCESS_INLINE INLINE
#endif
/* This structure records information about a subprocess
or network connection. */
struct Lisp_Process
{
struct vectorlike_header header;
/* Name of subprocess terminal. */
Lisp_Object tty_name;
/* Name of this process */
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 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 filter;
/* (funcall SENTINEL PROCESS) when process state changes */
Lisp_Object sentinel;
/* (funcall LOG SERVER CLIENT MESSAGE) when a server process
accepts a connection from a client. */
Lisp_Object log;
/* Buffer that output is going to */
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 childp;
/* Plist for programs to keep per-process state information, parameters, etc. */
Lisp_Object plist;
/* Symbol indicating the type of process: real, network, serial */
Lisp_Object type;
/* Marker set to end of last buffer-inserted output from this process */
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 status;
/* Coding-system for decoding the input from this process. */
Lisp_Object decode_coding_system;
/* Working buffer for decoding. */
Lisp_Object decoding_buf;
/* Coding-system for encoding the output to this process. */
Lisp_Object encode_coding_system;
/* Working buffer for encoding. */
Lisp_Object encoding_buf;
/* Queue for storing waiting writes */
Lisp_Object write_queue;
#ifdef HAVE_GNUTLS
Lisp_Object gnutls_cred_type;
#endif
/* After this point, there are no Lisp_Objects any more. */
/* alloc.c assumes that `pid' is the first such non-Lisp slot. */
/* Number of this process.
allocate_process assumes this is the first non-Lisp_Object field.
A value 0 is used for pseudo-processes such as network or serial
connections. */
pid_t pid;
/* Descriptor by which we read from this process */
int infd;
/* Descriptor by which we write to this process */
int outfd;
/* Event-count of last event in which this process changed status. */
EMACS_INT tick;
/* Event-count of last such event reported. */
EMACS_INT update_tick;
/* Size of carryover in decoding. */
int decoding_carryover;
/* Hysteresis to try to read process output in larger blocks.
On some systems, e.g. GNU/Linux, Emacs is seen as
an interactive app also when reading process output, meaning
that process output can be read in as little as 1 byte at a
time. Value is nanoseconds to delay reading output from
this process. Range is 0 .. 50 * 1000 * 1000. */
int read_output_delay;
/* Should we delay reading output from this process.
Initialized from `Vprocess_adaptive_read_buffering'.
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.
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;
/* 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;
/* Whether the process is alive, i.e., can be waited for. Running
processes can be waited for, but exited and fake processes cannot. */
unsigned int 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;
int raw_status;
#ifdef HAVE_GNUTLS
gnutls_initstage_t gnutls_initstage;
gnutls_session_t gnutls_state;
gnutls_certificate_client_credentials gnutls_x509_cred;
gnutls_anon_client_credentials_t gnutls_anon_cred;
int gnutls_log_level;
int gnutls_handshakes_tried;
int gnutls_p;
#endif
};
/* Every field in the preceding structure except for the first two
must be a Lisp_Object, for GC's sake. */
#define ChannelMask(n) (1 << (n))
/* Most code should use these functions to set Lisp fields in struct
process. */
PROCESS_INLINE void
pset_childp (struct Lisp_Process *p, Lisp_Object val)
{
p->childp = val;
}
#ifdef HAVE_GNUTLS
PROCESS_INLINE void
pset_gnutls_cred_type (struct Lisp_Process *p, Lisp_Object val)
{
p->gnutls_cred_type = val;
}
#endif
/* True if we are about to fork off a synchronous process or if we
are waiting for it. */
extern bool synch_process_alive;
/* Communicate exit status of sync process to from sigchld_handler
to Fcall_process. */
/* Nonzero => this is a string explaining death of synchronous subprocess. */
extern const char *synch_process_death;
/* 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;
/* Nonzero means don't run process sentinels. This is used
when exiting. */
extern int 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 Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs;
extern Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtpgid, Qcstime;
extern Lisp_Object Qtime, Qctime;
extern Lisp_Object QCspeed;
extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven;
extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary;
extern Lisp_Object list_system_processes (void);
extern Lisp_Object system_process_attributes (Lisp_Object);
extern void hold_keyboard_input (void);
extern void unhold_keyboard_input (void);
extern int kbd_on_hold_p (void);
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);
INLINE_HEADER_END
|
