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

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio 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   polypaudio 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 polypaudio; 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 <polypcore/util.h>
  33 #include <polypcore/xmalloc.h>
  34 #include <polypcore/strbuf.h>
  35 #include <polypcore/conf-parser.h>
  36 #include <polypcore/resampler.h>
  37
  38 #include "daemon-conf.h"
  39
  40 #ifndef DEFAULT_CONFIG_DIR
  41 # ifndef OS_IS_WIN32
  42 #  define DEFAULT_CONFIG_DIR "/etc/polypaudio"
  43 # else
  44 #  define DEFAULT_CONFIG_DIR "%POLYP_ROOT%"
  45 # endif
  46 #endif
  47
  48 #ifndef OS_IS_WIN32
  49 # define PATH_SEP "/"
  50 #else
  51 # define PATH_SEP "\\"
  52 #endif
  53
  54 #define DEFAULT_SCRIPT_FILE DEFAULT_CONFIG_DIR PATH_SEP "default.pa"
  55 #define DEFAULT_SCRIPT_FILE_USER ".polypaudio" PATH_SEP "default.pa"
  56 #define DEFAULT_CONFIG_FILE DEFAULT_CONFIG_DIR PATH_SEP "daemon.conf"
  57 #define DEFAULT_CONFIG_FILE_USER ".polypaudio" PATH_SEP "daemon.conf"
  58
  59 #define ENV_SCRIPT_FILE "POLYP_SCRIPT"
  60 #define ENV_CONFIG_FILE "POLYP_CONFIG"
  61 #define ENV_DL_SEARCH_PATH "POLYP_DLPATH"
  62
  63 static const pa_daemon_conf default_conf = {
  64     .cmd = PA_CMD_DAEMON,
  65     .daemonize = 0,
  66     .fail = 1,
  67     .high_priority = 0,
  68     .disallow_module_loading = 0,
  69     .exit_idle_time = -1,
  70     .module_idle_time = 20,
  71     .scache_idle_time = 20,
  72     .auto_log_target = 1,
  73     .script_commands = NULL,
  74     .dl_search_path = NULL,
  75     .default_script_file = NULL,
  76     .log_target = PA_LOG_SYSLOG,
  77     .log_level = PA_LOG_NOTICE,
  78     .resample_method = PA_RESAMPLER_SRC_SINC_FASTEST,
  79     .config_file = NULL,
  80     .use_pid_file = 1
  81 };
  82
  83 pa_daemon_conf* pa_daemon_conf_new(void) {
  84     FILE *f;
  85     pa_daemon_conf *c = pa_xmemdup(&default_conf, sizeof(default_conf));
  86
  87     if ((f = pa_open_config_file(DEFAULT_SCRIPT_FILE, DEFAULT_SCRIPT_FILE_USER, ENV_SCRIPT_FILE, &c->default_script_file)))
  88         fclose(f);
  89
  90 #ifdef DLSEARCHPATH
  91     c->dl_search_path = pa_xstrdup(DLSEARCHPATH);
  92 #endif
  93     return c;
  94 }
  95
  96 void pa_daemon_conf_free(pa_daemon_conf *c) {
  97     assert(c);
  98     pa_xfree(c->script_commands);
  99     pa_xfree(c->dl_search_path);
 100     pa_xfree(c->default_script_file);
 101     pa_xfree(c->config_file);
 102     pa_xfree(c);
 103 }
 104
 105 int pa_daemon_conf_set_log_target(pa_daemon_conf *c, const char *string) {
 106     assert(c && string);
 107
 108     if (!strcmp(string, "auto"))
 109         c->auto_log_target = 1;
 110     else if (!strcmp(string, "syslog")) {
 111         c->auto_log_target = 0;
 112         c->log_target = PA_LOG_SYSLOG;
 113     } else if (!strcmp(string, "stderr")) {
 114         c->auto_log_target = 0;
 115         c->log_target = PA_LOG_STDERR;
 116     } else
 117         return -1;
 118
 119     return 0;
 120 }
 121
 122 int pa_daemon_conf_set_log_level(pa_daemon_conf *c, const char *string) {
 123     uint32_t u;
 124     assert(c && string);
 125
 126     if (pa_atou(string, &u) >= 0) {
 127         if (u >= PA_LOG_LEVEL_MAX)
 128             return -1;
 129
 130         c->log_level = (pa_log_level_t) u;
 131     } else if (pa_startswith(string, "debug"))
 132         c->log_level = PA_LOG_DEBUG;
 133     else if (pa_startswith(string, "info"))
 134         c->log_level = PA_LOG_INFO;
 135     else if (pa_startswith(string, "notice"))
 136         c->log_level = PA_LOG_NOTICE;
 137     else if (pa_startswith(string, "warn"))
 138         c->log_level = PA_LOG_WARN;
 139     else if (pa_startswith(string, "err"))
 140         c->log_level = PA_LOG_ERROR;
 141     else
 142         return -1;
 143
 144     return 0;
 145 }
 146
 147 int pa_daemon_conf_set_resample_method(pa_daemon_conf *c, const char *string) {
 148     int m;
 149     assert(c && string);
 150
 151     if ((m = pa_parse_resample_method(string)) < 0)
 152         return -1;
 153
 154     c->resample_method = m;
 155     return 0;
 156 }
 157
 158 static int parse_log_target(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 159     pa_daemon_conf *c = data;
 160     assert(filename && lvalue && rvalue && data);
 161
 162     if (pa_daemon_conf_set_log_target(c, rvalue) < 0) {
 163         pa_log(__FILE__": [%s:%u] Invalid log target '%s'.", filename, line, rvalue);
 164         return -1;
 165     }
 166
 167     return 0;
 168 }
 169
 170 static int parse_log_level(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 171     pa_daemon_conf *c = data;
 172     assert(filename && lvalue && rvalue && data);
 173
 174     if (pa_daemon_conf_set_log_level(c, rvalue) < 0) {
 175         pa_log(__FILE__": [%s:%u] Invalid log level '%s'.", filename, line, rvalue);
 176         return -1;
 177     }
 178
 179     return 0;
 180 }
 181
 182 static int parse_resample_method(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) {
 183     pa_daemon_conf *c = data;
 184     assert(filename && lvalue && rvalue && data);
 185
 186     if (pa_daemon_conf_set_resample_method(c, rvalue) < 0) {
 187         pa_log(__FILE__": [%s:%u] Inavalid resample method '%s'.", filename, line, rvalue);
 188         return -1;
 189     }
 190
 191     return 0;
 192 }
 193
 194 int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
 195     int r = -1;
 196     FILE *f = NULL;
 197
 198     pa_config_item table[] = {
 199         { "daemonize",               pa_config_parse_bool,    NULL },
 200         { "fail",                    pa_config_parse_bool,    NULL },
 201         { "high-priority",           pa_config_parse_bool,    NULL },
 202         { "disallow-module-loading", pa_config_parse_bool,    NULL },
 203         { "exit-idle-time",          pa_config_parse_int,     NULL },
 204         { "module-idle-time",        pa_config_parse_int,     NULL },
 205         { "scache-idle-time",        pa_config_parse_int,     NULL },
 206         { "dl-search-path",          pa_config_parse_string,  NULL },
 207         { "default-script-file",     pa_config_parse_string,  NULL },
 208         { "log-target",              parse_log_target,        NULL },
 209         { "log-level",               parse_log_level,         NULL },
 210         { "verbose",                 parse_log_level,         NULL },
 211         { "resample-method",         parse_resample_method,   NULL },
 212         { "use-pid-file",            pa_config_parse_bool,    NULL },
 213         { NULL,                      NULL,                    NULL },
 214     };
 215
 216     table[0].data = &c->daemonize;
 217     table[1].data = &c->fail;
 218     table[2].data = &c->high_priority;
 219     table[3].data = &c->disallow_module_loading;
 220     table[4].data = &c->exit_idle_time;
 221     table[5].data = &c->module_idle_time;
 222     table[6].data = &c->scache_idle_time;
 223     table[7].data = &c->dl_search_path;
 224     table[8].data = &c->default_script_file;
 225     table[9].data = c;
 226     table[10].data = c;
 227     table[11].data = c;
 228     table[12].data = c;
 229     table[13].data = &c->use_pid_file;
 230
 231     pa_xfree(c->config_file);
 232     c->config_file = NULL;
 233
 234     f = filename ?
 235         fopen(c->config_file = pa_xstrdup(filename), "r") :
 236         pa_open_config_file(DEFAULT_CONFIG_FILE, DEFAULT_CONFIG_FILE_USER, ENV_CONFIG_FILE, &c->config_file);
 237
 238     if (!f && errno != ENOENT) {
 239         pa_log(__FILE__": WARNING: failed to open configuration file '%s': %s", filename, strerror(errno));
 240         goto finish;
 241     }
 242
 243     r = f ? pa_config_parse(c->config_file, f, table, NULL) : 0;
 244
 245 finish:
 246     if (f)
 247         fclose(f);
 248
 249     return r;
 250 }
 251
 252 int pa_daemon_conf_env(pa_daemon_conf *c) {
 253     char *e;
 254
 255     if ((e = getenv(ENV_DL_SEARCH_PATH))) {
 256         pa_xfree(c->dl_search_path);
 257         c->dl_search_path = pa_xstrdup(e);
 258     }
 259     if ((e = getenv(ENV_SCRIPT_FILE))) {
 260         pa_xfree(c->default_script_file);
 261         c->default_script_file = pa_xstrdup(e);
 262     }
 263
 264     return 0;
 265 }
 266
 267 static const char* const log_level_to_string[] = {
 268     [PA_LOG_DEBUG] = "debug",
 269     [PA_LOG_INFO] = "info",
 270     [PA_LOG_NOTICE] = "notice",
 271     [PA_LOG_WARN] = "warning",
 272     [PA_LOG_ERROR] = "error"
 273 };
 274
 275 char *pa_daemon_conf_dump(pa_daemon_conf *c) {
 276     pa_strbuf *s = pa_strbuf_new();
 277
 278     if (c->config_file)
 279         pa_strbuf_printf(s, "### Read from configuration file: %s ###\n", c->config_file);
 280
 281     assert(c->log_level <= PA_LOG_LEVEL_MAX);
 282
 283     pa_strbuf_printf(s, "daemonize = %i\n", !!c->daemonize);
 284     pa_strbuf_printf(s, "fail = %i\n", !!c->fail);
 285     pa_strbuf_printf(s, "high-priority = %i\n", !!c->high_priority);
 286     pa_strbuf_printf(s, "disallow-module-loading = %i\n", !!c->disallow_module_loading);
 287     pa_strbuf_printf(s, "exit-idle-time = %i\n", c->exit_idle_time);
 288     pa_strbuf_printf(s, "module-idle-time = %i\n", c->module_idle_time);
 289     pa_strbuf_printf(s, "scache-idle-time = %i\n", c->scache_idle_time);
 290     pa_strbuf_printf(s, "dl-search-path = %s\n", c->dl_search_path ? c->dl_search_path : "");
 291     pa_strbuf_printf(s, "default-script-file = %s\n", c->default_script_file);
 292     pa_strbuf_printf(s, "log-target = %s\n", c->auto_log_target ? "auto" : (c->log_target == PA_LOG_SYSLOG ? "syslog" : "stderr"));
 293     pa_strbuf_printf(s, "log-level = %s\n", log_level_to_string[c->log_level]);
 294     pa_strbuf_printf(s, "resample-method = %s\n", pa_resample_method_to_string(c->resample_method));
 295     pa_strbuf_printf(s, "use-pid-file = %i\n", c->use_pid_file);
 296
 297     return pa_strbuf_tostring_free(s);
 298 }