- error_code ret = getOpenFile(FD, Filename, result, FileSize, FileSize,
- 0, RequiresNullTerminator);
+ErrorOr<std::unique_ptr<MemoryBuffer>>
+MemoryBuffer::getFile(const Twine &Filename, int64_t FileSize,
+ bool RequiresNullTerminator, bool IsVolatileSize) {
+ return getFileAux(Filename, FileSize, FileSize, 0,
+ RequiresNullTerminator, IsVolatileSize);
+}
+
+static ErrorOr<std::unique_ptr<MemoryBuffer>>
+getOpenFileImpl(int FD, const Twine &Filename, uint64_t FileSize,
+ uint64_t MapSize, int64_t Offset, bool RequiresNullTerminator,
+ bool IsVolatileSize);
+
+static ErrorOr<std::unique_ptr<MemoryBuffer>>
+getFileAux(const Twine &Filename, int64_t FileSize, uint64_t MapSize,
+ uint64_t Offset, bool RequiresNullTerminator, bool IsVolatileSize) {
+ int FD;
+ std::error_code EC = sys::fs::openFileForRead(Filename, FD);
+ if (EC)
+ return EC;
+
+ ErrorOr<std::unique_ptr<MemoryBuffer>> Ret =
+ getOpenFileImpl(FD, Filename, FileSize, MapSize, Offset,
+ RequiresNullTerminator, IsVolatileSize);