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[Basic/FileManager] Propagate whether a file 'IsVolatile' to the file opening functions.

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Needs llvm r208007.

llvm-svn: 208008
This commit is contained in:
Argyrios Kyrtzidis
2014-05-05 21:57:46 +00:00
parent 20a92ae3d2
commit 26d56393c6
3 changed files with 19 additions and 10 deletions
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14
clang/lib/Basic/VirtualFileSystem.cpp
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@@ -67,12 +67,14 @@ FileSystem::~FileSystem() {}
error_code FileSystem::getBufferForFile(const llvm::Twine &Name,
std::unique_ptr<MemoryBuffer> &Result,
int64_t FileSize,
bool RequiresNullTerminator) {
bool RequiresNullTerminator,
bool IsVolatile) {
std::unique_ptr<File> F;
if (error_code EC = openFileForRead(Name, F))
return EC;
error_code EC = F->getBuffer(Name, Result, FileSize, RequiresNullTerminator);
error_code EC = F->getBuffer(Name, Result, FileSize, RequiresNullTerminator,
IsVolatile);
return EC;
}
@@ -95,7 +97,8 @@ public:
ErrorOr<Status> status() override;
error_code getBuffer(const Twine &Name, std::unique_ptr<MemoryBuffer> &Result,
int64_t FileSize = -1,
bool RequiresNullTerminator = true) override;
bool RequiresNullTerminator = true,
bool IsVolatile = false) override;
error_code close() override;
void setName(StringRef Name) override;
};
@@ -117,10 +120,11 @@ ErrorOr<Status> RealFile::status() {
error_code RealFile::getBuffer(const Twine &Name,
std::unique_ptr<MemoryBuffer> &Result,
int64_t FileSize, bool RequiresNullTerminator) {
int64_t FileSize, bool RequiresNullTerminator,
bool IsVolatile) {
assert(FD != -1 && "cannot get buffer for closed file");
return MemoryBuffer::getOpenFile(FD, Name.str().c_str(), Result, FileSize,
RequiresNullTerminator);
RequiresNullTerminator, IsVolatile);
}
// FIXME: This is terrible, we need this for ::close.