| 1 | //===-- memprof_stats.h ----------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This file is a part of MemProfiler, a memory profiler. |
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| 10 | // |
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| 11 | // MemProf-private header for statistics. |
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| 12 | //===----------------------------------------------------------------------===// |
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| 13 | #ifndef MEMPROF_STATS_H |
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| 14 | #define MEMPROF_STATS_H |
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| 15 | |
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| 16 | #include "memprof_allocator.h" |
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| 17 | #include "memprof_internal.h" |
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| 18 | |
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| 19 | namespace __memprof { |
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| 20 | |
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| 21 | // MemprofStats struct is NOT thread-safe. |
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| 22 | // Each MemprofThread has its own MemprofStats, which are sometimes flushed |
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| 23 | // to the accumulated MemprofStats. |
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| 24 | struct MemprofStats { |
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| 25 | // MemprofStats must be a struct consisting of uptr fields only. |
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| 26 | // When merging two MemprofStats structs, we treat them as arrays of uptr. |
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| 27 | uptr mallocs; |
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| 28 | uptr malloced; |
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| 29 | uptr malloced_overhead; |
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| 30 | uptr frees; |
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| 31 | uptr freed; |
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| 32 | uptr real_frees; |
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| 33 | uptr really_freed; |
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| 34 | uptr reallocs; |
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| 35 | uptr realloced; |
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| 36 | uptr mmaps; |
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| 37 | uptr mmaped; |
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| 38 | uptr munmaps; |
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| 39 | uptr munmaped; |
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| 40 | uptr malloc_large; |
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| 41 | uptr malloced_by_size[kNumberOfSizeClasses]; |
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| 42 | |
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| 43 | // Ctor for global MemprofStats (accumulated stats for dead threads). |
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| 44 | explicit MemprofStats(LinkerInitialized) {} |
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| 45 | // Creates empty stats. |
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| 46 | MemprofStats(); |
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| 47 | |
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| 48 | void Print(); // Prints formatted stats to stderr. |
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| 49 | void Clear(); |
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| 50 | void MergeFrom(const MemprofStats *stats); |
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| 51 | }; |
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| 52 | |
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| 53 | // Returns stats for GetCurrentThread(), or stats for fake "unknown thread" |
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| 54 | // if GetCurrentThread() returns 0. |
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| 55 | MemprofStats &GetCurrentThreadStats(); |
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| 56 | // Flushes a given stats into accumulated stats of dead threads. |
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| 57 | void FlushToDeadThreadStats(MemprofStats *stats); |
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| 58 | |
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| 59 | } // namespace __memprof |
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| 60 | |
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| 61 | #endif // MEMPROF_STATS_H |
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| 62 | |
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