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mirror of https://github.com/mpv-player/mpv synced 2025-01-29 03:02:53 +00:00
mpv/parser-cfg.c
wm4 9a2f4e10e7 mplayer: never exit mplayer from within the play loop
The only place exit_player() should be called is the main() function.
exit_player() should be the only function allowed to call exit(). This
makes it easier to guarantee proper deinitialization, and allows using
the --leak-report flag without showing false positives.

The quit slave command now sets a flag only. It uses the same mechanism
that's normally used to advance to the next file on the playlist, so the
rest of the playback path should be able to react to the quit command
quickly enough. That is, the player should react just as fast to quit
requests in practice as before this commit.

In reinit_audio_chain(), the player was actually exited if
init_audio_filters() failed. Reuse the normal error handling path to
handle this condition.
2012-08-04 19:59:56 +02:00

256 lines
7.7 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer 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 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <assert.h>
#include "osdep/io.h"
#include "parser-cfg.h"
#include "mp_msg.h"
#include "m_option.h"
#include "m_config.h"
/// Maximal include depth.
#define MAX_RECURSION_DEPTH 8
/// Current include depth.
static int recursion_depth = 0;
/// Setup the \ref Config from a config file.
/** \param config The config object.
* \param conffile Path to the config file.
* \return 1 on sucess, -1 on error, 0 if file not accessible.
*/
int m_config_parse_config_file(m_config_t *config, const char *conffile)
{
#define PRINT_LINENUM mp_msg(MSGT_CFGPARSER, MSGL_V, "%s(%d): ", conffile, line_num)
#define MAX_LINE_LEN 10000
#define MAX_OPT_LEN 1000
#define MAX_PARAM_LEN 1500
FILE *fp;
char *line;
char opt[MAX_OPT_LEN + 1];
char param[MAX_PARAM_LEN + 1];
char c; /* for the "" and '' check */
int tmp;
int line_num = 0;
int line_pos; /* line pos */
int opt_pos; /* opt pos */
int param_pos; /* param pos */
int ret = 1;
int errors = 0;
int prev_mode = config->mode;
m_profile_t *profile = NULL;
mp_msg(MSGT_CFGPARSER, MSGL_V, "Reading config file %s", conffile);
if (recursion_depth > MAX_RECURSION_DEPTH) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
": too deep 'include'. check your configfiles\n");
ret = -1;
goto out;
} else
config->mode = M_CONFIG_FILE;
if ((line = malloc(MAX_LINE_LEN + 1)) == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_FATAL,
"\ncan't get memory for 'line': %s", strerror(errno));
ret = -1;
goto out;
} else
mp_msg(MSGT_CFGPARSER, MSGL_V, "\n");
if ((fp = fopen(conffile, "r")) == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_V, ": %s\n", strerror(errno));
free(line);
ret = 0;
goto out;
}
while (fgets(line, MAX_LINE_LEN, fp)) {
if (errors >= 16) {
mp_msg(MSGT_CFGPARSER, MSGL_FATAL, "too many errors\n");
goto out;
}
line_num++;
line_pos = 0;
/* skip whitespaces */
while (isspace(line[line_pos]))
++line_pos;
/* EOL / comment */
if (line[line_pos] == '\0' || line[line_pos] == '#')
continue;
/* read option. */
for (opt_pos = 0; isprint(line[line_pos]) &&
line[line_pos] != ' ' &&
line[line_pos] != '#' &&
line[line_pos] != '='; /* NOTHING */) {
opt[opt_pos++] = line[line_pos++];
if (opt_pos >= MAX_OPT_LEN) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
"too long option at line %d\n", line_num);
errors++;
ret = -1;
goto nextline;
}
}
if (opt_pos == 0) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parse error at line %d\n",
line_num);
ret = -1;
errors++;
continue;
}
opt[opt_pos] = '\0';
/* Profile declaration */
if (opt_pos > 2 && opt[0] == '[' && opt[opt_pos - 1] == ']') {
opt[opt_pos - 1] = '\0';
if (strcmp(opt + 1, "default"))
profile = m_config_add_profile(config, opt + 1);
else
profile = NULL;
continue;
}
/* skip whitespaces */
while (isspace(line[line_pos]))
++line_pos;
/* check '=' */
if (line[line_pos++] != '=') {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
"Option %s needs a parameter at line %d\n", opt, line_num);
ret = -1;
errors++;
continue;
}
/* whitespaces... */
while (isspace(line[line_pos]))
++line_pos;
/* read the parameter */
if (line[line_pos] == '"' || line[line_pos] == '\'') {
c = line[line_pos];
++line_pos;
for (param_pos = 0; line[line_pos] != c; /* NOTHING */) {
param[param_pos++] = line[line_pos++];
if (param_pos >= MAX_PARAM_LEN) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
"Option %s has a too long parameter at line %d\n",
opt, line_num);
ret = -1;
errors++;
goto nextline;
}
}
line_pos++; /* skip the closing " or ' */
} else {
for (param_pos = 0; isprint(line[line_pos])
&& !isspace(line[line_pos])
&& line[line_pos] != '#'; /* NOTHING */) {
param[param_pos++] = line[line_pos++];
if (param_pos >= MAX_PARAM_LEN) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "too long parameter\n");
ret = -1;
errors++;
goto nextline;
}
}
}
param[param_pos] = '\0';
/* did we read a parameter? */
if (param_pos == 0) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
"Option %s needs a parameter at line %d\n", opt, line_num);
ret = -1;
errors++;
continue;
}
/* now, check if we have some more chars on the line */
/* whitespace... */
while (isspace(line[line_pos]))
++line_pos;
/* EOL / comment */
if (line[line_pos] != '\0' && line[line_pos] != '#') {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_WARN,
"extra characters on line %d: %s\n",
line_num, line + line_pos);
ret = -1;
}
if (profile) {
if (!strcmp(opt, "profile-desc"))
m_profile_set_desc(profile, param), tmp = 1;
else
tmp = m_config_set_profile_option(config, profile,
opt, param);
} else
tmp = m_config_set_option0(config, opt, param, false);
if (tmp < 0) {
PRINT_LINENUM;
if (tmp == M_OPT_UNKNOWN) {
mp_msg(MSGT_CFGPARSER, MSGL_WARN,
"Warning unknown option %s at line %d\n",
opt, line_num);
continue;
}
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
"Error parsing option %s=%s at line %d\n",
opt, param, line_num);
ret = -1;
errors++;
continue;
/* break */
}
nextline:
;
}
free(line);
fclose(fp);
out:
config->mode = prev_mode;
--recursion_depth;
return ret;
}