xpcom/glue/IntentionalCrash.h

   1 #include <string>
   2 #include <sstream>
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5
   6 #ifdef XP_WIN
   7 #include <process.h>
   8 #define getpid _getpid
   9 #else
  10 #include <unistd.h>
  11 #endif
  12
  13 #ifndef mozilla_IntentionalCrash_h
  14 #define mozilla_IntentionalCrash_h
  15
  16 namespace mozilla {
  17
  18 inline void
  19 NoteIntentionalCrash(const char* processType)
  20 {
  21   char* f = getenv("XPCOM_MEM_BLOAT_LOG");
  22   fprintf(stderr, "XPCOM_MEM_BLOAT_LOG: %s\n", f);
  23   if (!f)
  24     return;
  25
  26   std::string bloatLog(f);
  27
  28   bool hasExt = false;
  29   if (bloatLog.size() >= 4 &&
  30       0 == bloatLog.compare(bloatLog.size() - 4, 4, ".log", 4)) {
  31     hasExt = true;
  32     bloatLog.erase(bloatLog.size() - 4, 4);
  33   }
  34
  35   std::ostringstream bloatName;
  36   bloatName << bloatLog << "_" << processType << "_pid" << getpid();
  37   if (hasExt)
  38     bloatName << ".log";
  39
  40   fprintf(stderr, "Writing to log: %s\n", bloatName.str().c_str());
  41
  42   FILE* processfd = fopen(bloatName.str().c_str(), "a");
  43   fprintf(processfd, "==> process %d will purposefully crash\n", getpid());
  44   fclose(processfd);
  45 }
  46
  47 } // namespace mozilla
  48
  49 #endif // mozilla_IntentionalCrash_h