code.delx.au - pulseaudio/blob - polyp/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 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 <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 "modinfo.h"
  34
  35 #define PREFIX "module-"
  36
  37 static void short_info(const char *name, const char *path, struct pa_modinfo *i) {
  38     assert(name && i);
  39     printf("%-40s%s\n", name, i->description ? i->description : "n/a");
  40 }
  41
  42 static void long_info(const char *name, const char *path, struct pa_modinfo *i) {
  43     static int nl = 0;
  44     assert(name && i);
  45
  46     if (nl)
  47         printf("\n");
  48
  49     nl = 1;
  50
  51     printf("Name: %s\n", name);
  52
  53     if (!i->description && !i->version && !i->author && !i->usage)
  54         printf("No module information available\n");
  55     else {
  56         if (i->version)
  57             printf("Version: %s\n", i->version);
  58         if (i->description)
  59             printf("Description: %s\n", i->description);
  60         if (i->author)
  61             printf("Author: %s\n", i->author);
  62         if (i->usage)
  63             printf("Usage: %s\n", i->usage);
  64     }
  65
  66     if (path)
  67         printf("Path: %s\n", path);
  68 }
  69
  70 static void show_info(const char *name, const char *path, void (*info)(const char *name, const char *path, struct pa_modinfo*i)) {
  71     struct pa_modinfo *i;
  72
  73     if ((i = pa_modinfo_get_by_name(path ? path : name))) {
  74         info(name, path, i);
  75         pa_modinfo_free(i);
  76     }
  77 }
  78
  79 static int callback(const char *path, lt_ptr data) {
  80     const char *e;
  81     struct pa_daemon_conf *c = (data);
  82
  83     if ((e = (const char*) strrchr(path, '/')))
  84         e++;
  85     else
  86         e = path;
  87
  88     if (strlen(e) > sizeof(PREFIX)-1 && !strncmp(e, PREFIX, sizeof(PREFIX)-1))
  89         show_info(e, path, c->verbose ? long_info : short_info);
  90
  91     return 0;
  92 }
  93
  94 void pa_dump_modules(struct pa_daemon_conf *c, int argc, char * const argv[]) {
  95     if (argc > 0) {
  96         int i;
  97         for (i = 0; i < argc; i++)
  98             show_info(argv[i], NULL, long_info);
  99     } else
 100         lt_dlforeachfile(NULL, callback, c);
 101 }