71     _last_ditch_collection,
  72     _last_gc_cause
  73   };
  74 
  75   inline static bool is_user_requested_gc(GCCause::Cause cause) {
  76     return (cause == GCCause::_java_lang_system_gc ||
  77             cause == GCCause::_jvmti_force_gc);
  78   }
  79 
  80   inline static bool is_serviceability_requested_gc(GCCause::Cause
  81                                                              cause) {
  82     return (cause == GCCause::_jvmti_force_gc ||
  83             cause == GCCause::_heap_inspection ||
  84             cause == GCCause::_heap_dump);
  85   }
  86 
  87   // Return a string describing the GCCause.
  88   static const char* to_string(GCCause::Cause cause);
  89 };
  90 































  91 #endif // SHARE_VM_GC_INTERFACE_GCCAUSE_HPP

  71     _last_ditch_collection,
  72     _last_gc_cause
  73   };
  74 
  75   inline static bool is_user_requested_gc(GCCause::Cause cause) {
  76     return (cause == GCCause::_java_lang_system_gc ||
  77             cause == GCCause::_jvmti_force_gc);
  78   }
  79 
  80   inline static bool is_serviceability_requested_gc(GCCause::Cause
  81                                                              cause) {
  82     return (cause == GCCause::_jvmti_force_gc ||
  83             cause == GCCause::_heap_inspection ||
  84             cause == GCCause::_heap_dump);
  85   }
  86 
  87   // Return a string describing the GCCause.
  88   static const char* to_string(GCCause::Cause cause);
  89 };
  90 
  91 // Helper class for doing logging that includes the GC Cause
  92 // as a string.
  93 class GCCauseString : StackObj {
  94  private:
  95    static const int length = 128;
  96    char buffer[length];
  97    int position;
  98 
  99  public:
 100    GCCauseString(const char* prefix, GCCause::Cause cause) {
 101      if (PrintGCCause) {
 102       position = jio_snprintf(buffer, length, "%s (%s)", prefix, GCCause::to_string(cause));
 103      } else {
 104       position = jio_snprintf(buffer, length, "%s", prefix);
 105      }
 106      assert(position > 0 && position <= length,
 107        err_msg("Need to increase the buffer size in GCCauseString? %d", position));
 108    }
 109 
 110    GCCauseString& append(const char* str) {
 111      position += jio_snprintf(buffer + position, length - position, "%", str);
 112      assert(position > 0 && position <= length,
 113        err_msg("Need to increase the buffer size in GCCauseString? %d", position));
 114      return *this;
 115    }
 116 
 117    operator const char*() {
 118      return buffer;
 119    }
 120 };
 121 
 122 #endif // SHARE_VM_GC_INTERFACE_GCCAUSE_HPP