- error_code ret = getOpenFile(FD, Filename, result, FileSize, FileSize,
- 0, RequiresNullTerminator);
+ErrorOr<std::unique_ptr<MemoryBuffer>>
+MemoryBuffer::getFile(Twine Filename, int64_t FileSize,
+ bool RequiresNullTerminator, bool IsVolatileSize) {
+ // Ensure the path is null terminated.
+ SmallString<256> PathBuf;
+ StringRef NullTerminatedName = Filename.toNullTerminatedStringRef(PathBuf);
+ return getFileAux(NullTerminatedName.data(), FileSize, RequiresNullTerminator,
+ IsVolatileSize);
+}
+
+static ErrorOr<std::unique_ptr<MemoryBuffer>>
+getOpenFileImpl(int FD, const char *Filename, uint64_t FileSize,
+ uint64_t MapSize, int64_t Offset, bool RequiresNullTerminator,
+ bool IsVolatileSize);
+
+static ErrorOr<std::unique_ptr<MemoryBuffer>>
+getFileAux(const char *Filename, int64_t FileSize, 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, FileSize, 0,
+ RequiresNullTerminator, IsVolatileSize);