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