modules/logger/android.c

   1 /*****************************************************************************
   2  * android.c: Android logger using logcat
   3  *****************************************************************************
   4  * Copyright © 2015 VLC authors and VideoLAN
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU Lesser General Public License as published by
   8  * the Free Software Foundation; either version 2.1 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  19  *****************************************************************************/
  20
  21 #ifndef __ANDROID__
  22 #error __ANDROID__ not defined
  23 #endif
  24
  25 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include <android/log.h>
  30
  31 #include <stdarg.h>
  32 #include <stdio.h>
  33
  34 #include <vlc_common.h>
  35 #include <vlc_plugin.h>
  36
  37 static const int ptr_width = 2 * /* hex digits */ sizeof (uintptr_t);
  38
  39 static void AndroidPrintMsg(void *opaque, int type, const vlc_log_t *p_item,
  40                             const char *format, va_list ap)
  41 {
  42     int prio;
  43     char *format2;
  44     int verbose = (intptr_t)opaque;
  45
  46     if (verbose < type)
  47         return;
  48
  49     if (asprintf(&format2, "[%0*"PRIxPTR"/%lx] %s %s: %s",
  50                  ptr_width, p_item->i_object_id, p_item->tid, p_item->psz_module,
  51                  p_item->psz_object_type, format) < 0)
  52         return;
  53     switch (type) {
  54         case VLC_MSG_INFO:
  55             prio = ANDROID_LOG_INFO;
  56             break;
  57         case VLC_MSG_ERR:
  58             prio = ANDROID_LOG_ERROR;
  59             break;
  60         case VLC_MSG_WARN:
  61             prio = ANDROID_LOG_WARN;
  62             break;
  63         default:
  64         case VLC_MSG_DBG:
  65             prio = ANDROID_LOG_DEBUG;
  66     }
  67     __android_log_vprint(prio, "VLC", format2, ap);
  68     free(format2);
  69 }
  70
  71 static vlc_log_cb Open(vlc_object_t *obj, void **sysp)
  72 {
  73     int verbosity = var_InheritInteger(obj, "verbose");
  74
  75     if (verbosity < 0)
  76         return NULL;
  77
  78     verbosity += VLC_MSG_ERR;
  79     *sysp = (void *)(uintptr_t)verbosity;
  80
  81     return AndroidPrintMsg;
  82 }
  83
  84 vlc_module_begin()
  85     set_shortname(N_("Android log"))
  86     set_description(N_("Android log using logcat"))
  87     set_category(CAT_ADVANCED)
  88     set_subcategory(SUBCAT_ADVANCED_MISC)
  89     set_capability("logger", 30)
  90     set_callbacks(Open, NULL)
  91 vlc_module_end ()