Mercurial > ~mikael > mcabber > hg

annotate mcabber/src/fifo.c @ 1665:1a4890514eb9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Clean up some dead assignments/dead variables
author Ulrich Spörlein
date Tue, 02 Feb 2010 19:44:39 +0100
parents fca9a4c17432
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
1 /*
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
2 * fifo.c -- Read commands from a named pipe
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
3 *
1599
dcd5d4c75199 Update/Add headers
Mikael Berthe <mikael@lilotux.net>
parents: 1598
diff changeset
4 * Copyright (C) 2008,2009 Mikael Berthe <mikael@lilotux.net>
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
5 * Copyrigth (C) 2009 Myhailo Danylenko <isbear@ukrpost.net>
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
6 *
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
7 * This program is free software; you can redistribute it and/or modify
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
8 * it under the terms of the GNU General Public License as published by
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
9 * the Free Software Foundation; either version 2 of the License, or (at
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
10 * your option) any later version.
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
11 *
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
12 * This program is distributed in the hope that it will be useful, but
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
15 * General Public License for more details.
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
16 *
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
17 * You should have received a copy of the GNU General Public License
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
18 * along with this program; if not, write to the Free Software
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
20 * USA
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
21 */
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
22
1598
a087125d8fc8 Replace libjabber with loudmouth
franky
parents: 1572
diff changeset
23 #include <stdlib.h>
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
24 #include <glib.h>
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
25 #include <sys/types.h>
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
26 #include <sys/stat.h>
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
27 #include <fcntl.h>
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
28 #include <unistd.h>
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
29 #include <errno.h>
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
30 #include <fcntl.h>
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
31
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
32 #include "commands.h"
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
33 #include "logprint.h"
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
34 #include "utils.h"
1427
a8eb9aba2ed2 Add option 'fifo_hide_commands'
Mikael Berthe <mikael@lilotux.net>
parents: 1426
diff changeset
35 #include "settings.h"
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
36 #include "main.h"
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
37
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
38 static char *fifo_name = NULL;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
39 static GIOChannel *fifo_channel = NULL;
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
40
1572
8c0237c8c186 Export the FIFO pipe name as an environment variable (Lukas Kuklinek)
Mikael Berthe <mikael@lilotux.net>
parents: 1526
diff changeset
41 static const char *FIFO_ENV_NAME = "MCABBER_FIFO";
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
42
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
43 static gboolean attach_fifo(const char *name);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
44
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
45 static guint fifo_callback(GIOChannel *channel,
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
46 GIOCondition condition,
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
47 gpointer data)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
48 {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
49 if (condition & (G_IO_IN|G_IO_PRI)) {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
50 GIOStatus chstat;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
51 gchar *buf;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
52 gsize endpos;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
53
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
54 chstat = g_io_channel_read_line(channel, &buf, NULL, &endpos, NULL);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
55 if (chstat == G_IO_STATUS_ERROR || chstat == G_IO_STATUS_EOF) {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
56 if (!attach_fifo(fifo_name))
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
57 scr_LogPrint(LPRINT_LOGNORM,
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
58 "Reopening fifo failed! Fifo will not work from now!");
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
59 return FALSE;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
60 }
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
61 if (buf) {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
62 guint logflag;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
63 guint fifo_ignore = settings_opt_get_int("fifo_ignore");
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
64
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
65 if (endpos)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
66 buf[endpos] = '\0';
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
67
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
68 if (settings_opt_get_int("fifo_hide_commands"))
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
69 logflag = LPRINT_LOG;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
70 else
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
71 logflag = LPRINT_LOGNORM;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
72 scr_LogPrint(logflag, "%s FIFO command: %s",
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
73 (fifo_ignore ? "Ignoring" : "Executing"), buf);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
74 if (!fifo_ignore) {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
75 if (process_command(buf, TRUE) == 255)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
76 mcabber_set_terminate_ui();
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
77 }
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
78
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
79 g_free(buf);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
80 }
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
81 } else if (condition & (G_IO_ERR|G_IO_NVAL|G_IO_HUP)) {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
82 if (!attach_fifo(fifo_name))
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
83 scr_LogPrint(LPRINT_LOGNORM,
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
84 "Reopening fifo failed! Fifo will not work from now!");
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
85 return FALSE;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
86 }
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
87 return TRUE;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
88 }
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
89
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
90 static void fifo_destroy_callback(gpointer data)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
91 {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
92 GIOChannel *channel = (GIOChannel *)data;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
93 g_io_channel_unref(channel);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
94 }
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
95
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
96 static gboolean check_fifo(const char *name)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
97 {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
98 struct stat finfo;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
99 if (stat(name, &finfo) == -1) {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
100 /* some unknown error */
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
101 if (errno != ENOENT)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
102 return FALSE;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
103 /* fifo not yet exists */
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
104 if (mkfifo(name, S_IRUSR|S_IWUSR) != -1)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
105 return check_fifo(name);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
106 else
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
107 return FALSE;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
108 }
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
109
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
110 /* file exists */
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
111 if (S_ISFIFO(finfo.st_mode))
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
112 return TRUE;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
113 else
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
114 return FALSE;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
115 }
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
116
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
117 static gboolean attach_fifo(const char *name)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
118 {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
119 GSource *source;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
120 int fd = open (name, O_RDONLY|O_NONBLOCK);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
121 if (fd == -1)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
122 return FALSE;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
123
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
124 fifo_channel = g_io_channel_unix_new(fd);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
125
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
126 g_io_channel_set_flags(fifo_channel, G_IO_FLAG_NONBLOCK, NULL);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
127 g_io_channel_set_encoding(fifo_channel, NULL, NULL);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
128 g_io_channel_set_close_on_unref(fifo_channel, TRUE);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
129
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
130 source = g_io_create_watch(fifo_channel,
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
131 G_IO_IN|G_IO_PRI|G_IO_ERR|G_IO_HUP|G_IO_NVAL);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
132 g_source_set_callback(source, (GSourceFunc)fifo_callback,
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
133 (gpointer)fifo_channel,
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
134 (GDestroyNotify)fifo_destroy_callback);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
135 g_source_attach(source, main_context);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
136
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
137 return TRUE;
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
138 }
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
139
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
140 int fifo_init(const char *fifo_path)
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
141 {
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
142 if (fifo_path) {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
143 fifo_name = expand_filename(fifo_path);
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
144
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
145 if (!check_fifo(fifo_name)) {
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
146 scr_LogPrint(LPRINT_LOGNORM, "WARNING: Cannot create the FIFO. "
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
147 "%s already exists and is not a pipe", fifo_name);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
148 g_free(fifo_name);
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
149 return -1;
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
150 }
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
151 } else if (fifo_name)
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
152 g_source_remove_by_user_data(fifo_channel);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
153 else
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
154 return -1;
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
155
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
156 if (!attach_fifo(fifo_name)) {
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
157 scr_LogPrint(LPRINT_LOGNORM, "Error: Cannot open fifo");
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
158 return -1;
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
159 }
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
160
1572
8c0237c8c186 Export the FIFO pipe name as an environment variable (Lukas Kuklinek)
Mikael Berthe <mikael@lilotux.net>
parents: 1526
diff changeset
161 setenv(FIFO_ENV_NAME, fifo_name, 1);
8c0237c8c186 Export the FIFO pipe name as an environment variable (Lukas Kuklinek)
Mikael Berthe <mikael@lilotux.net>
parents: 1526
diff changeset
162
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
163 scr_LogPrint(LPRINT_LOGNORM, "FIFO initialized (%s)", fifo_path);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
164 return 1;
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
165 }
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
166
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
167 void fifo_deinit(void)
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
168 {
1572
8c0237c8c186 Export the FIFO pipe name as an environment variable (Lukas Kuklinek)
Mikael Berthe <mikael@lilotux.net>
parents: 1526
diff changeset
169 unsetenv(FIFO_ENV_NAME);
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
170
1653
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
171 /* destroy open fifo */
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
172 unlink(fifo_name);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
173 g_source_remove_by_user_data(fifo_channel);
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
174 /* channel itself should be destroyed by destruction callback */
fca9a4c17432 Improve UI latency and CPU usage
Myhailo Danylenko <isbear@ukrpost.net>
parents: 1599
diff changeset
175 g_free(fifo_name);
1426
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
176 }
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
177
a64778f5f26b Implement FIFO named command pipe
Mikael Berthe <mikael@lilotux.net>
parents:
diff changeset
178 /* vim: set expandtab cindent cinoptions=>2\:2(0: For Vim users... */