Revert 126020 - Experiment for updating the tcmalloc chromium branch to r144 (gperftools 2.0).

third_party/tcmalloc/chromium/src/google/heap-profiler.h

Index: third_party/tcmalloc/chromium/src/google/heap-profiler.h
===================================================================
--- third_party/tcmalloc/chromium/src/google/heap-profiler.h	(revision 126022)
+++ third_party/tcmalloc/chromium/src/google/heap-profiler.h	(working copy)
@@ -26,9 +26,79 @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat
+ *
+ * Module for heap-profiling.
+ *
+ * For full(er) information, see doc/heapprofile.html
+ *
+ * This module can be linked into your program with
+ * no slowdown caused by this unless you activate the profiler
+ * using one of the following methods:
+ *
+ *    1. Before starting the program, set the environment variable
+ *       "HEAPPROFILE" to be the name of the file to which the profile
+ *       data should be written.
+ *
+ *    2. Programmatically, start and stop the profiler using the
+ *       routines "HeapProfilerStart(filename)" and "HeapProfilerStop()".
+ *
  */
 
-/* The code has moved to gperftools/.  Use that include-directory for
- * new code.
+#ifndef BASE_HEAP_PROFILER_H_
+#define BASE_HEAP_PROFILER_H_
+
+#include <stddef.h>
+
+/* Annoying stuff for windows; makes sure clients can import these functions */
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+/* All this code should be usable from within C apps. */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Start profiling and arrange to write profile data to file names
+ * of the form: "prefix.0000", "prefix.0001", ...
  */
-#include <gperftools/heap-profiler.h>
+PERFTOOLS_DLL_DECL void HeapProfilerStart(const char* prefix);
+
+/* Returns non-zero if we are currently profiling the heap.  (Returns
+ * an int rather than a bool so it's usable from C.)  This is true
+ * between calls to HeapProfilerStart() and HeapProfilerStop(), and
+ * also if the program has been run with HEAPPROFILER, or some other
+ * way to turn on whole-program profiling.
+ */
+int IsHeapProfilerRunning();
+
+/* Stop heap profiling.  Can be restarted again with HeapProfilerStart(),
+ * but the currently accumulated profiling information will be cleared.
+ */
+PERFTOOLS_DLL_DECL void HeapProfilerStop();
+
+/* Dump a profile now - can be used for dumping at a hopefully
+ * quiescent state in your program, in order to more easily track down
+ * memory leaks. Will include the reason in the logged message
+ */
+PERFTOOLS_DLL_DECL void HeapProfilerDump(const char *reason);
+
+/* Generate current heap profiling information.
+ * Returns an empty string when heap profiling is not active.
+ * The returned pointer is a '\0'-terminated string allocated using malloc()
+ * and should be free()-ed as soon as the caller does not need it anymore.
+ */
+PERFTOOLS_DLL_DECL char* GetHeapProfile();
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  /* BASE_HEAP_PROFILER_H_ */