[Mplayerxp-cvslog] SF.net SVN: mplayerxp:[142] mplayerxp

[<nic...@us...>]

Revision: 142
          http://mplayerxp.svn.sourceforge.net/mplayerxp/?rev=142&view=rev
Author:   nickols_k
Date:     2010-02-22 18:29:08 +0000 (Mon, 22 Feb 2010)

Log Message:
-----------
add backtrace functionality

Modified Paths:
--------------
    mplayerxp/configure
    mplayerxp/sig_hand.c

Modified: mplayerxp/configure
===================================================================
--- mplayerxp/configure	2010-02-15 17:22:49 UTC (rev 141)
+++ mplayerxp/configure	2010-02-22 18:29:08 UTC (rev 142)
@@ -351,6 +351,9 @@
 check_func2 time.h nanosleep
 print_config HAVE_ mp_config.h mp_config.mak nanosleep
 
+check_func2 execinfo.h backtrace
+print_config HAVE_ mp_config.h mp_config.mak backtrace
+
 disable inet_pton
 if enabled streaming ; then
 disable socklib

Modified: mplayerxp/sig_hand.c
===================================================================
--- mplayerxp/sig_hand.c	2010-02-15 17:22:49 UTC (rev 141)
+++ mplayerxp/sig_hand.c	2010-02-22 18:29:08 UTC (rev 142)
@@ -1,6 +1,7 @@
 /*
   MplayerXP's Signal handling
 */
+#include "mp_config.h"
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE   /* to get definition of strsignal */
 #endif
@@ -22,7 +23,33 @@
 extern pthread_t mplayer_pth_id;
 extern pid_t dec_ahead_pid;
 
+#ifdef HAVE_BACKTRACE
+#include <execinfo.h>
+/* Obtain a backtrace and print it to stdout. */
+static void print_trace (void)
+{
+  void *array[10];
+  size_t size;
+  char **strings;
+  size_t i;
 
+  size = backtrace (array, 10);
+  strings = backtrace_symbols (array, size);
+
+  MSG_ERR ("Obtained %zd stack frames.\n", size);
+
+  for (i = 0; i < size; i++)
+     MSG_ERR ("%s\n", strings[i]);
+
+  free (strings);
+}
+
+/* A dummy function to make the backtrace more interesting. */
+static void dump_trace (void)
+{
+  print_trace ();
+}
+#endif
 static void my_callback(int signo)
 {
     int i;
@@ -32,8 +59,9 @@
     }
 
    mp_msg(MSGT_CPLAYER,MSGL_FATAL,__FILE__,__LINE__,"catching signal: %s in thread: %s (%i) in module: %s\n",strsignal(signo),pinfo[i].thread_name,i,pinfo[i].current_module);
-
-
+#ifdef HAVE_BACKTRACE
+   dump_trace();
+#endif
    pinfo[i].sig_handler();
 
    signal(signo,SIG_DFL);
@@ -51,7 +79,7 @@
   pinfo[xp_threads].current_module = NULL;
   pinfo[xp_threads].unlink = _unlink;
   xp_threads++;
-#if 0
+#if 1
   /*========= Catch terminate signals: ================*/
   /* terminate requests:*/
   signal(SIGTERM,my_callback); /* kill*/


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