| /* Copyright (c) 2005, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * 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 CPU profiling based on periodic pc-sampling. |
| * |
| * These functions are thread-safe. |
| */ |
| |
| #ifndef BUTIL_GPERFTOOLS_PROFILER_H_ |
| #define BUTIL_GPERFTOOLS_PROFILER_H_ |
| |
| /* Annoying stuff for windows; makes sure clients can import these functions */ |
| #ifndef BRPC_DLL_DECL |
| # ifdef _WIN32 |
| # define BRPC_DLL_DECL __declspec(dllimport) |
| # else |
| # define BRPC_DLL_DECL |
| # endif |
| #endif |
| |
| /* All this code should be usable from within C apps. */ |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Start profiling and write profile info into fname, discarding any |
| * existing profiling data in that file. |
| * |
| * This is equivalent to calling ProfilerStartWithOptions(fname, NULL). |
| */ |
| BRPC_DLL_DECL int ProfilerStart(const char* fname); |
| |
| /* Stop profiling. Can be started again with ProfilerStart(), but |
| * the currently accumulated profiling data will be cleared. |
| */ |
| BRPC_DLL_DECL void ProfilerStop(); |
| |
| /* Flush any currently buffered profiling state to the profile file. |
| * Has no effect if the profiler has not been started. |
| */ |
| BRPC_DLL_DECL void ProfilerFlush(); |
| |
| /* Returns nonzero if profile is currently enabled, zero if it's not. */ |
| BRPC_DLL_DECL int ProfilingIsEnabledForAllThreads(); |
| |
| /* Routine for registering new threads with the profiler. |
| */ |
| BRPC_DLL_DECL void ProfilerRegisterThread(); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif /* BUTIL_GPERFTOOLS_PROFILER_H_ */ |
