summaryrefslogtreecommitdiff
path: root/lib/fuzzer/FuzzerShmem.h
diff options
context:
space:
mode:
Diffstat (limited to 'lib/fuzzer/FuzzerShmem.h')
-rw-r--r--lib/fuzzer/FuzzerShmem.h69
1 files changed, 0 insertions, 69 deletions
diff --git a/lib/fuzzer/FuzzerShmem.h b/lib/fuzzer/FuzzerShmem.h
deleted file mode 100644
index 53568e0acb69c..0000000000000
--- a/lib/fuzzer/FuzzerShmem.h
+++ /dev/null
@@ -1,69 +0,0 @@
-//===- FuzzerShmem.h - shared memory interface ------------------*- C++ -* ===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-// SharedMemoryRegion
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_FUZZER_SHMEM_H
-#define LLVM_FUZZER_SHMEM_H
-
-#include <algorithm>
-#include <cstring>
-#include <string>
-
-#include "FuzzerDefs.h"
-
-namespace fuzzer {
-
-class SharedMemoryRegion {
- public:
- bool Create(const char *Name);
- bool Open(const char *Name);
- bool Destroy(const char *Name);
- uint8_t *GetData() { return Data; }
- void PostServer() {Post(0);}
- void WaitServer() {Wait(0);}
- void PostClient() {Post(1);}
- void WaitClient() {Wait(1);}
-
- size_t WriteByteArray(const uint8_t *Bytes, size_t N) {
- assert(N <= kShmemSize - sizeof(N));
- memcpy(GetData(), &N, sizeof(N));
- memcpy(GetData() + sizeof(N), Bytes, N);
- assert(N == ReadByteArraySize());
- return N;
- }
- size_t ReadByteArraySize() {
- size_t Res;
- memcpy(&Res, GetData(), sizeof(Res));
- return Res;
- }
- uint8_t *GetByteArray() { return GetData() + sizeof(size_t); }
-
- bool IsServer() const { return Data && IAmServer; }
- bool IsClient() const { return Data && !IAmServer; }
-
-private:
-
- static const size_t kShmemSize = 1 << 22;
- bool IAmServer;
- std::string Path(const char *Name);
- std::string SemName(const char *Name, int Idx);
- void Post(int Idx);
- void Wait(int Idx);
-
- bool Map(int fd);
- uint8_t *Data = nullptr;
- void *Semaphore[2];
-};
-
-extern SharedMemoryRegion SMR;
-
-} // namespace fuzzer
-
-#endif // LLVM_FUZZER_SHMEM_H