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