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//===-- memprof_stats.h ----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of MemProfiler, a memory profiler.
//
// MemProf-private header for statistics.
//===----------------------------------------------------------------------===//
#ifndef MEMPROF_STATS_H
#define MEMPROF_STATS_H
#include "memprof_allocator.h"
#include "memprof_internal.h"
namespace __memprof {
// MemprofStats struct is NOT thread-safe.
// Each MemprofThread has its own MemprofStats, which are sometimes flushed
// to the accumulated MemprofStats.
struct MemprofStats {
// MemprofStats must be a struct consisting of uptr fields only.
// When merging two MemprofStats structs, we treat them as arrays of uptr.
uptr mallocs;
uptr malloced;
uptr malloced_overhead;
uptr frees;
uptr freed;
uptr real_frees;
uptr really_freed;
uptr reallocs;
uptr realloced;
uptr mmaps;
uptr mmaped;
uptr munmaps;
uptr munmaped;
uptr malloc_large;
uptr malloced_by_size[kNumberOfSizeClasses];
// Ctor for global MemprofStats (accumulated stats for dead threads).
explicit MemprofStats(LinkerInitialized) {}
// Creates empty stats.
MemprofStats();
void Print(); // Prints formatted stats to stderr.
void Clear();
void MergeFrom(const MemprofStats *stats);
};
// Returns stats for GetCurrentThread(), or stats for fake "unknown thread"
// if GetCurrentThread() returns 0.
MemprofStats &GetCurrentThreadStats();
// Flushes a given stats into accumulated stats of dead threads.
void FlushToDeadThreadStats(MemprofStats *stats);
} // namespace __memprof
#endif // MEMPROF_STATS_H
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