diff options
Diffstat (limited to 'lib/Support/MemoryBuffer.cpp')
| -rw-r--r-- | lib/Support/MemoryBuffer.cpp | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/lib/Support/MemoryBuffer.cpp b/lib/Support/MemoryBuffer.cpp index 051d64b038..cab45c736b 100644 --- a/lib/Support/MemoryBuffer.cpp +++ b/lib/Support/MemoryBuffer.cpp @@ -248,6 +248,11 @@ error_code MemoryBuffer::getFile(StringRef Filename, RequiresNullTerminator); } +static error_code getOpenFileImpl(int FD, const char *Filename, + OwningPtr<MemoryBuffer> &Result, + uint64_t FileSize, uint64_t MapSize, + int64_t Offset, bool RequiresNullTerminator); + error_code MemoryBuffer::getFile(const char *Filename, OwningPtr<MemoryBuffer> &result, int64_t FileSize, @@ -257,8 +262,8 @@ error_code MemoryBuffer::getFile(const char *Filename, if (EC) return EC; - error_code ret = getOpenFile(FD, Filename, result, FileSize, FileSize, - 0, RequiresNullTerminator); + error_code ret = getOpenFileImpl(FD, Filename, result, FileSize, FileSize, 0, + RequiresNullTerminator); close(FD); return ret; } @@ -305,11 +310,10 @@ static bool shouldUseMmap(int FD, return true; } -error_code MemoryBuffer::getOpenFile(int FD, const char *Filename, - OwningPtr<MemoryBuffer> &result, - uint64_t FileSize, uint64_t MapSize, - int64_t Offset, - bool RequiresNullTerminator) { +static error_code getOpenFileImpl(int FD, const char *Filename, + OwningPtr<MemoryBuffer> &result, + uint64_t FileSize, uint64_t MapSize, + int64_t Offset, bool RequiresNullTerminator) { static int PageSize = sys::process::get_self()->page_size(); // Default is to map the full file. @@ -386,6 +390,20 @@ error_code MemoryBuffer::getOpenFile(int FD, const char *Filename, return error_code::success(); } +error_code MemoryBuffer::getOpenFile(int FD, const char *Filename, + OwningPtr<MemoryBuffer> &Result, + uint64_t FileSize, + bool RequiresNullTerminator) { + return getOpenFileImpl(FD, Filename, Result, FileSize, FileSize, 0, + RequiresNullTerminator); +} + +error_code MemoryBuffer::getOpenFileSlice(int FD, const char *Filename, + OwningPtr<MemoryBuffer> &Result, + uint64_t MapSize, int64_t Offset) { + return getOpenFileImpl(FD, Filename, Result, -1, MapSize, Offset, false); +} + //===----------------------------------------------------------------------===// // MemoryBuffer::getSTDIN implementation. //===----------------------------------------------------------------------===// |