| // Copyright 2008, 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 |
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| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // Functions used to debug memory usage, leaks, and other memory issues. |
| // All methods are effectively no-ops unless this program is being run through |
| // a supported memory tool (currently, only Purify) |
| |
| #ifndef BASE_MEMORY_DEBUG_H_ |
| #define BASE_MEMORY_DEBUG_H_ |
| |
| #include "base/basictypes.h" |
| |
| namespace base { |
| |
| class MemoryDebug { |
| public: |
| // Since MIU messages are a lot of data, and we don't always want this data, |
| // we have a global switch. If disabled, *MemoryInUse are no-ops. |
| static void SetMemoryInUseEnabled(bool enabled); |
| |
| // Dump information about all memory in use. |
| static void DumpAllMemoryInUse(); |
| // Dump information about new memory in use since the last |
| // call to DumpAllMemoryInUse() or DumpNewMemoryInUse(). |
| static void DumpNewMemoryInUse(); |
| |
| // Dump information about all current memory leaks. |
| static void DumpAllLeaks(); |
| // Dump information about new memory leaks since the last |
| // call to DumpAllLeaks() or DumpNewLeaks() |
| static void DumpNewLeaks(); |
| |
| // Mark |size| bytes of memory as initialized, so it doesn't produce any UMRs |
| // or UMCs. |
| static void MarkAsInitialized(void* addr, size_t size); |
| |
| private: |
| static bool memory_in_use_; |
| |
| DISALLOW_IMPLICIT_CONSTRUCTORS(MemoryDebug); |
| }; |
| |
| } // namespace base |
| |
| #endif // BASE_MEMORY_DEBUG_H_ |