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Diffstat (limited to 'mozglue/baseprofiler/core/platform.h')
| -rw-r--r-- | mozglue/baseprofiler/core/platform.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/mozglue/baseprofiler/core/platform.h b/mozglue/baseprofiler/core/platform.h new file mode 100644 index 0000000000..f77fc12726 --- /dev/null +++ b/mozglue/baseprofiler/core/platform.h @@ -0,0 +1,149 @@ +// Copyright (c) 2006-2011 The Chromium Authors. 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. + +#ifndef TOOLS_PLATFORM_H_ +#define TOOLS_PLATFORM_H_ + +#include "PlatformMacros.h" + +#include "BaseProfiler.h" + +#include "mozilla/Atomics.h" +#include "mozilla/Logging.h" +#include "mozilla/UniquePtr.h" +#include "mozilla/Vector.h" + +#include <functional> +#include <stdint.h> +#include <string> + +namespace mozilla { +namespace baseprofiler { +bool LogTest(int aLevelToTest); +void PrintToConsole(const char* aFmt, ...) MOZ_FORMAT_PRINTF(1, 2); +} // namespace baseprofiler +} // namespace mozilla + +// These are for MOZ_BASE_PROFILER_LOGGING and above. It's the default logging +// level for the profiler, and should be used sparingly. +#define LOG_TEST ::mozilla::baseprofiler::LogTest(3) +#define LOG(arg, ...) \ + do { \ + if (LOG_TEST) { \ + ::mozilla::baseprofiler::PrintToConsole( \ + "[I %d/%d] " arg "\n", \ + int(::mozilla::baseprofiler::profiler_current_process_id() \ + .ToNumber()), \ + int(::mozilla::baseprofiler::profiler_current_thread_id() \ + .ToNumber()), \ + ##__VA_ARGS__); \ + } \ + } while (0) + +// These are for MOZ_BASE_PROFILER_DEBUG_LOGGING. It should be used for logging +// that is somewhat more verbose than LOG. +#define DEBUG_LOG_TEST ::mozilla::baseprofiler::LogTest(4) +#define DEBUG_LOG(arg, ...) \ + do { \ + if (DEBUG_LOG_TEST) { \ + ::mozilla::baseprofiler::PrintToConsole( \ + "[D %d/%d] " arg "\n", \ + int(::mozilla::baseprofiler::profiler_current_process_id() \ + .ToNumber()), \ + int(::mozilla::baseprofiler::profiler_current_thread_id() \ + .ToNumber()), \ + ##__VA_ARGS__); \ + } \ + } while (0) + +// These are for MOZ_BASE_PROFILER_VERBOSE_LOGGING. It should be used for +// logging that is somewhat more verbose than DEBUG_LOG. +#define VERBOSE_LOG_TEST ::mozilla::baseprofiler::LogTest(5) +#define VERBOSE_LOG(arg, ...) \ + do { \ + if (VERBOSE_LOG_TEST) { \ + ::mozilla::baseprofiler::PrintToConsole( \ + "[V %d/%d] " arg "\n", \ + int(::mozilla::baseprofiler::profiler_current_process_id() \ + .ToNumber()), \ + int(::mozilla::baseprofiler::profiler_current_thread_id() \ + .ToNumber()), \ + ##__VA_ARGS__); \ + } \ + } while (0) + +namespace mozilla { + +class JSONWriter; + +namespace baseprofiler { + +// If positive, skip stack-sampling in the sampler thread loop. +// Users should increment it atomically when samplings should be avoided, and +// later decrement it back. Multiple uses can overlap. +// There could be a sampling in progress when this is first incremented, so if +// it is critical to prevent any sampling, lock the profiler mutex instead. +// Relaxed ordering, because it's used to request that the profiler pause +// future sampling; this is not time critical, nor dependent on anything else. +extern mozilla::Atomic<int, mozilla::MemoryOrdering::Relaxed> gSkipSampling; + +typedef uint8_t* Address; + +class PlatformData; + +// We can't new/delete the type safely without defining it +// (-Wdelete-incomplete). Use these to hide the details from clients. +struct PlatformDataDestructor { + void operator()(PlatformData*); +}; + +typedef UniquePtr<PlatformData, PlatformDataDestructor> UniquePlatformData; +UniquePlatformData AllocPlatformData(BaseProfilerThreadId aThreadId); + +// Convert the array of strings to a bitfield. +uint32_t ParseFeaturesFromStringArray(const char** aFeatures, + uint32_t aFeatureCount, + bool aIsStartup = false); + +// Flags to conveniently track various JS instrumentations. +enum class JSInstrumentationFlags { + StackSampling = 0x1, + Allocations = 0x2, +}; + +// Record an exit profile from a child process. +void profiler_received_exit_profile(const std::string& aExitProfile); + +// Extract all received exit profiles that have not yet expired (i.e., they +// still intersect with this process' buffer range). +Vector<std::string> profiler_move_exit_profiles(); + +} // namespace baseprofiler +} // namespace mozilla + +#endif /* ndef TOOLS_PLATFORM_H_ */ |