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add a MemoryBuffer::getOpenFile method, which turns an open

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file descriptor into a MemoryBuffer (and closes the FD).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120065 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-11-23 22:20:27 +00:00
parent 67ff104e7e
commit 7cf705461c
2 changed files with 16 additions and 4 deletions
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7
lib/Support/MemoryBuffer.cpp
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@ -187,6 +187,7 @@ public:
MemoryBuffer *MemoryBuffer::getFile(StringRef Filename, std::string *ErrStr,
int64_t FileSize) {
// Ensure the path is null terminated.
SmallString<256> PathBuf(Filename.begin(), Filename.end());
return MemoryBuffer::getFile(PathBuf.c_str(), ErrStr, FileSize);
}
@ -202,6 +203,12 @@ MemoryBuffer *MemoryBuffer::getFile(const char *Filename, std::string *ErrStr,
if (ErrStr) *ErrStr = sys::StrError();
return 0;
}
return getOpenFile(FD, Filename, ErrStr, FileSize);
}
MemoryBuffer *MemoryBuffer::getOpenFile(int FD, const char *Filename,
std::string *ErrStr, int64_t FileSize) {
FileCloser FC(FD); // Close FD on return.
// If we don't know the file size, use fstat to find out. fstat on an open