code.delx.au - pulseaudio/blob - src/daemon/daemon-conf.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <assert.h>
  30 #include <unistd.h>
  31
  32 #include <pulse/xmalloc.h>
  33
  34 #include <pulsecore/core-error.h>
  35 #include <pulsecore/core-util.h>
  36 #include <pulsecore/strbuf.h>
  37 #include <pulsecore/conf-parser.h>
  38 #include <pulsecore/resampler.h>
  39
  40 #include "daemon-conf.h"
  41
  42 #ifndef OS_IS_WIN32
  43 # define PATH_SEP "/"
  44 #else
  45 # define PATH_SEP "\\"
  46 #endif
  47
  48 #define DEFAULT_SCRIPT_FILE PA_DEFAULT_CONFIG_DIR PATH_SEP "default.pa"
  49 #define DEFAULT_SCRIPT_FILE_USER PATH_SEP "default.pa"
  50 #define DEFAULT_CONFIG_FILE PA_DEFAULT_CONFIG_DIR PATH_SEP "daemon.conf"
  51 #define DEFAULT_CONFIG_FILE_USER PATH_SEP "daemon.conf"
  52
  53 #define ENV_SCRIPT_FILE "PULSE_SCRIPT"
  54 #define ENV_CONFIG_FILE "PULSE_CONFIG"
  55 #define ENV_DL_SEARCH_PATH "PULSE_DLPATH"
  56
  57 static const pa_daemon_conf default_conf = {
  58     .cmd = PA_CMD_DAEMON,
  59     .daemonize = 0,
  60     .fail = 1,
  61     .high_priority = 0,
  62     .disallow_module_loading = 0,
  63     .exit_idle_time = -1,
  64     .module_idle_time = 20,
  65     .scache_idle_time = 20,
  66     .auto_log_target = 1,
  67     .script_commands = NULL,
  68     .dl_search_path = NULL,
  69     .default_script_file = NULL,
  70     .log_target = PA_LOG_SYSLOG,
  71     .log_level = PA_LOG_NOTICE,
  72     .resample_method = PA_RESAMPLER_SRC_SINC_FASTEST,
  73     .config_file = NULL,
  74     .use_pid_file = 1,
  75     .system_instance = 0
  76 };
  77
  78 pa_daemon_conf* pa_daemon_conf_new(void) {
  79     FILE *f;
  80     pa_daemon_conf *c = pa_xmemdup(&default_conf, sizeof(default_conf));
  81
  82     if ((f = pa_open_config_file(DEFAULT_SCRIPT_FILE, DEFAULT_SCRIPT_FILE_USER, ENV_SCRIPT_FILE, &c->default_script_file, "r")))
  83         fclose(f);
  84
  85     c->dl_search_path = pa_xstrdup(PA_DLSEARCHPATH);
  86     return c;
  87 }
  88
  89 void pa_daemon_conf_free(pa_daemon_conf *c) {
  90     assert(c);
  91     pa_xfree(c->script_commands);
  92     pa_xfree(c->dl_search_path);
  93     pa_xfree(c->default_script_file);
  94     pa_xfree(c->config_file);
  95     pa_xfree(c);
  96 }
  97
  98 int pa_daemon_conf_set_log_target(pa_daemon_conf *c, const char *string) {
  99     assert(c && string);
 100
 101     if (!strcmp(string, "auto"))
 102         c->auto_log_target = 1;
 103     else if (!strcmp(string, "syslog")) {
 104         c->auto_log_target = 0;
 105         c->log_target = PA_LOG_SYSLOG;
 106     } else if (!strcmp(string, "stderr")) {
 107         c->auto_log_target = 0;
 108         c->log_target = PA_LOG_STDERR;
 109     } else
 110         return -1;
 111
 112     return 0;
 113 }
 114
 115 int pa_daemon_conf_set_log_level(pa_daemon_conf *c, const char *string) {
 116     uint32_t u;
 117     assert(c && string);
 118
 119     if (pa_atou(string, &u) >= 0) {
 120         if (u >= PA_LOG_LEVEL_MAX)
 121             return -1;
 122
 123         c->log_level = (pa_log_level_t) u;
 124     } else if (pa_startswith(string, "debug"))
 125         c->log_level = PA_LOG_DEBUG;
 126     else if (pa_startswith(string, "info"))
 127         c->log_level = PA_LOG_INFO;
 128     else if (pa_startswith(string, "notice"))
 129         c->log_level = PA_LOG_NOTICE;
 130     else if (pa_startswith(string, "warn"))
 131         c->log_level = PA_LOG_WARN;
 132     else if (pa_startswith(string, "err"))
 133         c->log_level = PA_LOG_ERROR;
 134     else
 135         return -1;
 136
 137     return 0;
 138 }
 139
 140 int pa_daemon_conf_set_resample_method(pa_daemon_conf *c, const char *string) {
 141     int m;
 142     assert(c && string);
 143
 144     if ((m = pa_parse_resample_method(string)) < 0)
 145         return -1;
 146
 147     c->resample_method = m;
 148     return 0;
 149 }
 150
 151 static int parse_log_target(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 152     pa_daemon_conf *c = data;
 153     assert(filename && lvalue && rvalue && data);
 154
 155     if (pa_daemon_conf_set_log_target(c, rvalue) < 0) {
 156         pa_log(__FILE__": [%s:%u] Invalid log target '%s'.", filename, line, rvalue);
 157         return -1;
 158     }
 159
 160     return 0;
 161 }
 162
 163 static int parse_log_level(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 164     pa_daemon_conf *c = data;
 165     assert(filename && lvalue && rvalue && data);
 166
 167     if (pa_daemon_conf_set_log_level(c, rvalue) < 0) {
 168         pa_log(__FILE__": [%s:%u] Invalid log level '%s'.", filename, line, rvalue);
 169         return -1;
 170     }
 171
 172     return 0;
 173 }
 174
 175 static int parse_resample_method(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 176     pa_daemon_conf *c = data;
 177     assert(filename && lvalue && rvalue && data);
 178
 179     if (pa_daemon_conf_set_resample_method(c, rvalue) < 0) {
 180         pa_log(__FILE__": [%s:%u] Inavalid resample method '%s'.", filename, line, rvalue);
 181         return -1;
 182     }
 183
 184     return 0;
 185 }
 186
 187 int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
 188     int r = -1;
 189     FILE *f = NULL;
 190
 191     pa_config_item table[] = {
 192         { "daemonize",               pa_config_parse_bool,    NULL },
 193         { "fail",                    pa_config_parse_bool,    NULL },
 194         { "high-priority",           pa_config_parse_bool,    NULL },
 195         { "disallow-module-loading", pa_config_parse_bool,    NULL },
 196         { "exit-idle-time",          pa_config_parse_int,     NULL },
 197         { "module-idle-time",        pa_config_parse_int,     NULL },
 198         { "scache-idle-time",        pa_config_parse_int,     NULL },
 199         { "dl-search-path",          pa_config_parse_string,  NULL },
 200         { "default-script-file",     pa_config_parse_string,  NULL },
 201         { "log-target",              parse_log_target,        NULL },
 202         { "log-level",               parse_log_level,         NULL },
 203         { "verbose",                 parse_log_level,         NULL },
 204         { "resample-method",         parse_resample_method,   NULL },
 205         { "use-pid-file",            pa_config_parse_bool,    NULL },
 206         { "system-instance",         pa_config_parse_bool,    NULL },
 207         { NULL,                      NULL,                    NULL },
 208     };
 209
 210     table[0].data = &c->daemonize;
 211     table[1].data = &c->fail;
 212     table[2].data = &c->high_priority;
 213     table[3].data = &c->disallow_module_loading;
 214     table[4].data = &c->exit_idle_time;
 215     table[5].data = &c->module_idle_time;
 216     table[6].data = &c->scache_idle_time;
 217     table[7].data = &c->dl_search_path;
 218     table[8].data = &c->default_script_file;
 219     table[9].data = c;
 220     table[10].data = c;
 221     table[11].data = c;
 222     table[12].data = c;
 223     table[13].data = &c->use_pid_file;
 224     table[14].data = &c->system_instance;
 225
 226     pa_xfree(c->config_file);
 227     c->config_file = NULL;
 228
 229     f = filename ?
 230         fopen(c->config_file = pa_xstrdup(filename), "r") :
 231         pa_open_config_file(DEFAULT_CONFIG_FILE, DEFAULT_CONFIG_FILE_USER, ENV_CONFIG_FILE, &c->config_file, "r");
 232
 233     if (!f && errno != ENOENT) {
 234         pa_log(__FILE__": WARNING: failed to open configuration file '%s': %s", c->config_file, pa_cstrerror(errno));
 235         goto finish;
 236     }
 237
 238     r = f ? pa_config_parse(c->config_file, f, table, NULL) : 0;
 239
 240 finish:
 241     if (f)
 242         fclose(f);
 243
 244     return r;
 245 }
 246
 247 int pa_daemon_conf_env(pa_daemon_conf *c) {
 248     char *e;
 249
 250     if ((e = getenv(ENV_DL_SEARCH_PATH))) {
 251         pa_xfree(c->dl_search_path);
 252         c->dl_search_path = pa_xstrdup(e);
 253     }
 254     if ((e = getenv(ENV_SCRIPT_FILE))) {
 255         pa_xfree(c->default_script_file);
 256         c->default_script_file = pa_xstrdup(e);
 257     }
 258
 259     return 0;
 260 }
 261
 262 static const char* const log_level_to_string[] = {
 263     [PA_LOG_DEBUG] = "debug",
 264     [PA_LOG_INFO] = "info",
 265     [PA_LOG_NOTICE] = "notice",
 266     [PA_LOG_WARN] = "warning",
 267     [PA_LOG_ERROR] = "error"
 268 };
 269
 270 char *pa_daemon_conf_dump(pa_daemon_conf *c) {
 271     pa_strbuf *s = pa_strbuf_new();
 272
 273     if (c->config_file)
 274         pa_strbuf_printf(s, "### Read from configuration file: %s ###\n", c->config_file);
 275
 276     assert(c->log_level <= PA_LOG_LEVEL_MAX);
 277
 278     pa_strbuf_printf(s, "daemonize = %i\n", !!c->daemonize);
 279     pa_strbuf_printf(s, "fail = %i\n", !!c->fail);
 280     pa_strbuf_printf(s, "high-priority = %i\n", !!c->high_priority);
 281     pa_strbuf_printf(s, "disallow-module-loading = %i\n", !!c->disallow_module_loading);
 282     pa_strbuf_printf(s, "exit-idle-time = %i\n", c->exit_idle_time);
 283     pa_strbuf_printf(s, "module-idle-time = %i\n", c->module_idle_time);
 284     pa_strbuf_printf(s, "scache-idle-time = %i\n", c->scache_idle_time);
 285     pa_strbuf_printf(s, "dl-search-path = %s\n", c->dl_search_path ? c->dl_search_path : "");
 286     pa_strbuf_printf(s, "default-script-file = %s\n", c->default_script_file);
 287     pa_strbuf_printf(s, "log-target = %s\n", c->auto_log_target ? "auto" : (c->log_target == PA_LOG_SYSLOG ? "syslog" : "stderr"));
 288     pa_strbuf_printf(s, "log-level = %s\n", log_level_to_string[c->log_level]);
 289     pa_strbuf_printf(s, "resample-method = %s\n", pa_resample_method_to_string(c->resample_method));
 290     pa_strbuf_printf(s, "use-pid-file = %i\n", c->use_pid_file);
 291     pa_strbuf_printf(s, "system-instance = %i\n", !!c->system_instance);
 292
 293     return pa_strbuf_tostring_free(s);
 294 }