code.delx.au - pulseaudio/blob - polyp/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 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 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 #include <samplerate.h>
  32
  33 #include "daemon-conf.h"
  34 #include "util.h"
  35 #include "xmalloc.h"
  36 #include "strbuf.h"
  37 #include "conf-parser.h"
  38
  39 #ifndef DEFAULT_CONFIG_DIR
  40 #define DEFAULT_CONFIG_DIR "/etc/polypaudio"
  41 #endif
  42
  43 #define DEFAULT_SCRIPT_FILE DEFAULT_CONFIG_DIR"/default.pa"
  44 #define DEFAULT_SCRIPT_FILE_USER ".polypaudio/default.pa"
  45 #define DEFAULT_CONFIG_FILE DEFAULT_CONFIG_DIR"/daemon.conf"
  46 #define DEFAULT_CONFIG_FILE_USER ".polypaudio/daemon.conf"
  47
  48 #define ENV_SCRIPT_FILE "POLYP_SCRIPT"
  49 #define ENV_CONFIG_FILE "POLYP_CONFIG"
  50 #define ENV_DL_SEARCH_PATH "POLYP_DLPATH"
  51
  52 static const struct pa_daemon_conf default_conf = {
  53     .cmd = PA_CMD_DAEMON,
  54     .daemonize = 0,
  55     .fail = 1,
  56     .verbose = 0,
  57     .high_priority = 0,
  58     .disallow_module_loading = 0,
  59     .exit_idle_time = -1,
  60     .module_idle_time = 20,
  61     .scache_idle_time = 20,
  62     .auto_log_target = 1,
  63     .script_commands = NULL,
  64     .dl_search_path = NULL,
  65     .default_script_file = NULL,
  66     .log_target = PA_LOG_SYSLOG,
  67     .resample_method = SRC_SINC_FASTEST,
  68     .config_file = NULL,
  69 };
  70
  71 struct pa_daemon_conf* pa_daemon_conf_new(void) {
  72     FILE *f;
  73     struct pa_daemon_conf *c = pa_xmemdup(&default_conf, sizeof(default_conf));
  74
  75     if ((f = pa_open_config_file(DEFAULT_SCRIPT_FILE, DEFAULT_SCRIPT_FILE_USER, ENV_SCRIPT_FILE, &c->default_script_file)))
  76         fclose(f);
  77
  78 #ifdef DLSEARCHPATH
  79     c->dl_search_path = pa_xstrdup(DLSEARCHPATH);
  80 #endif
  81     return c;
  82 }
  83
  84 void pa_daemon_conf_free(struct pa_daemon_conf *c) {
  85     assert(c);
  86     pa_xfree(c->script_commands);
  87     pa_xfree(c->dl_search_path);
  88     pa_xfree(c->default_script_file);
  89     pa_xfree(c->config_file);
  90     pa_xfree(c);
  91 }
  92
  93 int pa_daemon_conf_set_log_target(struct pa_daemon_conf *c, const char *string) {
  94     assert(c && string);
  95
  96     if (!strcmp(string, "auto"))
  97         c->auto_log_target = 1;
  98     else if (!strcmp(string, "syslog")) {
  99         c->auto_log_target = 0;
 100         c->log_target = PA_LOG_SYSLOG;
 101     } else if (!strcmp(string, "stderr")) {
 102         c->auto_log_target = 0;
 103         c->log_target = PA_LOG_STDERR;
 104     } else
 105         return -1;
 106
 107     return 0;
 108 }
 109
 110 int pa_daemon_conf_set_resample_method(struct pa_daemon_conf *c, const char *string) {
 111     int m;
 112     assert(c && string);
 113
 114     if ((m = pa_parse_resample_method(string)) < 0)
 115         return -1;
 116
 117     c->resample_method = m;
 118     return 0;
 119 }
 120
 121 int parse_log_target(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata) {
 122     struct pa_daemon_conf *c = data;
 123     assert(filename && lvalue && rvalue && data);
 124
 125     if (pa_daemon_conf_set_log_target(c, rvalue) < 0) {
 126         pa_log(__FILE__": [%s:%u] Invalid log target '%s'.\n", filename, line, rvalue);
 127         return -1;
 128     }
 129
 130     return 0;
 131 }
 132
 133 int parse_resample_method(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata) {
 134     struct pa_daemon_conf *c = data;
 135     assert(filename && lvalue && rvalue && data);
 136
 137     if (pa_daemon_conf_set_resample_method(c, rvalue) < 0) {
 138         pa_log(__FILE__": [%s:%u] Inavalid resample method '%s'.\n", filename, line, rvalue);
 139         return -1;
 140     }
 141
 142     return 0;
 143 }
 144
 145 int pa_daemon_conf_load(struct pa_daemon_conf *c, const char *filename) {
 146     int r = -1;
 147     FILE *f = NULL;
 148
 149     struct pa_config_item table[] = {
 150         { "verbose",                 pa_config_parse_bool,    NULL },
 151         { "daemonize",               pa_config_parse_bool,    NULL },
 152         { "fail",                    pa_config_parse_bool,    NULL },
 153         { "high-priority",           pa_config_parse_bool,    NULL },
 154         { "disallow-module-loading", pa_config_parse_bool,    NULL },
 155         { "exit-idle-time",          pa_config_parse_int,     NULL },
 156         { "module-idle-time",        pa_config_parse_int,     NULL },
 157         { "scache-idle-time",        pa_config_parse_int,     NULL },
 158         { "dl-search-path",          pa_config_parse_string,  NULL },
 159         { "default-script-file",     pa_config_parse_string,  NULL },
 160         { "log-target",              parse_log_target,        NULL },
 161         { "resample-method",         parse_resample_method,   NULL },
 162         { NULL,                      NULL,                    NULL },
 163     };
 164
 165     table[0].data = &c->verbose;
 166     table[1].data = &c->daemonize;
 167     table[2].data = &c->fail;
 168     table[3].data = &c->high_priority;
 169     table[4].data = &c->disallow_module_loading;
 170     table[5].data = &c->exit_idle_time;
 171     table[6].data = &c->module_idle_time;
 172     table[7].data = &c->scache_idle_time;
 173     table[8].data = &c->dl_search_path;
 174     table[9].data = &c->default_script_file;
 175     table[10].data = c;
 176     table[11].data = c;
 177
 178     pa_xfree(c->config_file);
 179     c->config_file = NULL;
 180
 181     f = filename ?
 182         fopen(c->config_file = pa_xstrdup(filename), "r") :
 183         pa_open_config_file(DEFAULT_CONFIG_FILE, DEFAULT_CONFIG_FILE_USER, ENV_CONFIG_FILE, &c->config_file);
 184
 185     if (!f && errno != ENOENT) {
 186         pa_log(__FILE__": WARNING: failed to open configuration file '%s': %s\n", filename, strerror(errno));
 187         goto finish;
 188     }
 189
 190     r = f ? pa_config_parse(c->config_file, f, table, NULL) : 0;
 191
 192 finish:
 193     if (f)
 194         fclose(f);
 195
 196     return r;
 197 }
 198
 199 int pa_daemon_conf_env(struct pa_daemon_conf *c) {
 200     char *e;
 201
 202     if ((e = getenv(ENV_DL_SEARCH_PATH))) {
 203         pa_xfree(c->dl_search_path);
 204         c->dl_search_path = pa_xstrdup(e);
 205     }
 206     if ((e = getenv(ENV_SCRIPT_FILE))) {
 207         pa_xfree(c->default_script_file);
 208         c->default_script_file = pa_xstrdup(e);
 209     }
 210
 211     return 0;
 212 }
 213
 214 char *pa_daemon_conf_dump(struct pa_daemon_conf *c) {
 215     struct pa_strbuf *s = pa_strbuf_new();
 216
 217     static const char const* resample_methods[] = {
 218         "sinc-best-quality",
 219         "sinc-medium-quality",
 220         "sinc-fastest",
 221         "zero-order-hold",
 222         "linear"
 223     };
 224
 225     if (c->config_file)
 226         pa_strbuf_printf(s, "### Read from configuration file: %s ###\n", c->config_file);
 227
 228     pa_strbuf_printf(s, "verbose = %i\n", !!c->verbose);
 229     pa_strbuf_printf(s, "daemonize = %i\n", !!c->daemonize);
 230     pa_strbuf_printf(s, "fail = %i\n", !!c->fail);
 231     pa_strbuf_printf(s, "high-priority = %i\n", !!c->high_priority);
 232     pa_strbuf_printf(s, "disallow-module-loading = %i\n", !!c->disallow_module_loading);
 233     pa_strbuf_printf(s, "exit-idle-time = %i\n", c->exit_idle_time);
 234     pa_strbuf_printf(s, "module-idle-time = %i\n", c->module_idle_time);
 235     pa_strbuf_printf(s, "scache-idle-time = %i\n", c->scache_idle_time);
 236     pa_strbuf_printf(s, "dl-search-path = %s\n", c->dl_search_path ? c->dl_search_path : "");
 237     pa_strbuf_printf(s, "default-script-file = %s\n", c->default_script_file);
 238     pa_strbuf_printf(s, "log-target = %s\n", c->auto_log_target ? "auto" : (c->log_target == PA_LOG_SYSLOG ? "syslog" : "stderr"));
 239
 240     assert(c->resample_method <= 4 && c->resample_method >= 0);
 241     pa_strbuf_printf(s, "resample-method = %s\n", resample_methods[c->resample_method]);
 242
 243     return pa_strbuf_tostring_free(s);
 244 }