forked from OSchip/llvm-project
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
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//===-- sanitizer_deadlock_detector_interface.h -----------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of Sanitizer runtime.
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// Abstract deadlock detector interface.
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// FIXME: this is work in progress, nothing really works yet.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_DEADLOCK_DETECTOR_INTERFACE_H
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#define SANITIZER_DEADLOCK_DETECTOR_INTERFACE_H
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#include "sanitizer_internal_defs.h"
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namespace __sanitizer {
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// dd - deadlock detector.
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// lt - logical (user) thread.
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// pt - physical (OS) thread.
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struct DDMutex {
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uptr id;
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u32 stk; // creation (or any other) stack that indentifies the mutex
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u64 ctx; // user context
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};
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struct DDReport {
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int n; // number of entries in loop
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struct {
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u64 thr_ctx; // user thread context
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u64 mtx_ctx0; // user mutex context, start of the edge
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u64 mtx_ctx1; // user mutex context, end of the edge
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u32 stk; // stack id for the edge
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} loop[16];
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};
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struct DDPhysicalThread;
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struct DDLogicalThread;
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struct DDetector {
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static DDetector *Create();
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virtual DDPhysicalThread* CreatePhysicalThread() { return 0; }
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virtual void DestroyPhysicalThread(DDPhysicalThread *pt) {}
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virtual DDLogicalThread* CreateLogicalThread(u64 ctx) { return 0; }
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virtual void DestroyLogicalThread(DDLogicalThread *lt) {}
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virtual void MutexInit(DDMutex *m, u32 stk, u64 ctx) {}
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virtual DDReport *MutexLock(DDPhysicalThread *pt, DDLogicalThread *lt,
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DDMutex *m, bool writelock, bool trylock) { return 0; }
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virtual DDReport *MutexUnlock(DDPhysicalThread *pt, DDLogicalThread *lt,
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DDMutex *m, bool writelock) { return 0; }
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virtual void MutexDestroy(DDPhysicalThread *pt, DDLogicalThread *lt,
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DDMutex *m) {}
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};
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} // namespace __sanitizer
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#endif // SANITIZER_DEADLOCK_DETECTOR_INTERFACE_H
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