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//===-- tsan_mman.h ---------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of ThreadSanitizer (TSan), a race detector.
//
//===----------------------------------------------------------------------===//
#ifndef TSAN_MMAN_H
#define TSAN_MMAN_H
#include "tsan_defs.h"
namespace __tsan {
// Descriptor of user's memory block.
struct MBlock {
uptr size;
};
// For user allocations.
void *user_alloc(ThreadState *thr, uptr pc, uptr sz);
// Does not accept NULL.
void user_free(ThreadState *thr, uptr pc, void *p);
void *user_realloc(ThreadState *thr, uptr pc, void *p, uptr sz);
void *user_alloc_aligned(ThreadState *thr, uptr pc, uptr sz, uptr align);
// Given the pointer p into a valid allocated block,
// returns the descriptor of the block.
MBlock *user_mblock(ThreadState *thr, void *p);
enum MBlockType {
MBlockScopedBuf,
MBlockString,
MBlockStackTrace,
MBlockSync,
MBlockClock,
MBlockThreadContex,
MBlockDeadInfo,
MBlockRacyStacks,
MBlockRacyAddresses,
MBlockAtExit,
MBlockFlag,
MBlockReport,
MBlockReportMop,
MBlockReportThread,
MBlockReportMutex,
MBlockReportLoc,
MBlockReportStack,
MBlockSuppression,
MBlockExpectRace,
// This must be the last.
MBlockTypeCount,
};
// For internal data structures.
void *internal_alloc(MBlockType typ, uptr sz);
void internal_free(void *p);
template<typename T>
void DestroyAndFree(T *&p) {
p->~T();
internal_free(p);
p = 0;
}
template<typename T>
class InternalScopedBuf {
public:
explicit InternalScopedBuf(uptr cnt) {
cnt_ = cnt;
ptr_ = (T*)internal_alloc(MBlockScopedBuf, cnt * sizeof(T));
}
~InternalScopedBuf() {
internal_free(ptr_);
}
operator T *() {
return ptr_;
}
T &operator[](uptr i) {
return ptr_[i];
}
T *Ptr() {
return ptr_;
}
uptr Count() {
return cnt_;
}
uptr Size() {
return cnt_ * sizeof(T);
}
private:
T *ptr_;
uptr cnt_;
InternalScopedBuf(const InternalScopedBuf&);
void operator = (const InternalScopedBuf&);
};
} // namespace __tsan
#endif // TSAN_MMAN_H