code.delx.au - pulseaudio/blob - src/daemon/dumpmodules.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 <string.h>
  27 #include <getopt.h>
  28 #include <assert.h>
  29 #include <stdio.h>
  30 #include <ltdl.h>
  31
  32 #include "dumpmodules.h"
  33 #include <polypcore/modinfo.h>
  34 #include <polypcore/util.h>
  35
  36 #define PREFIX "module-"
  37
  38 static void short_info(const char *name, PA_GCC_UNUSED const char *path, pa_modinfo *i) {
  39     assert(name && i);
  40     printf("%-40s%s\n", name, i->description ? i->description : "n/a");
  41 }
  42
  43 static void long_info(const char *name, const char *path, pa_modinfo *i) {
  44     static int nl = 0;
  45     assert(name && i);
  46
  47     if (nl)
  48         printf("\n");
  49
  50     nl = 1;
  51
  52     printf("Name: %s\n", name);
  53
  54     if (!i->description && !i->version && !i->author && !i->usage)
  55         printf("No module information available\n");
  56     else {
  57         if (i->version)
  58             printf("Version: %s\n", i->version);
  59         if (i->description)
  60             printf("Description: %s\n", i->description);
  61         if (i->author)
  62             printf("Author: %s\n", i->author);
  63         if (i->usage)
  64             printf("Usage: %s\n", i->usage);
  65     }
  66
  67     if (path)
  68         printf("Path: %s\n", path);
  69 }
  70
  71 static void show_info(const char *name, const char *path, void (*info)(const char *name, const char *path, pa_modinfo*i)) {
  72     pa_modinfo *i;
  73
  74     if ((i = pa_modinfo_get_by_name(path ? path : name))) {
  75         info(name, path, i);
  76         pa_modinfo_free(i);
  77     }
  78 }
  79
  80 static int callback(const char *path, lt_ptr data) {
  81     const char *e;
  82     pa_daemon_conf *c = (data);
  83
  84     e = pa_path_get_filename(path);
  85
  86     if (strlen(e) > sizeof(PREFIX)-1 && !strncmp(e, PREFIX, sizeof(PREFIX)-1))
  87         show_info(e, path, c->log_level >= PA_LOG_INFO ? long_info : short_info);
  88
  89     return 0;
  90 }
  91
  92 void pa_dump_modules(pa_daemon_conf *c, int argc, char * const argv[]) {
  93     if (argc > 0) {
  94         int i;
  95         for (i = 0; i < argc; i++)
  96             show_info(argv[i], NULL, long_info);
  97     } else
  98         lt_dlforeachfile(NULL, callback, c);
  99 }