diff options
Diffstat (limited to 'base/file_util_win.cc')
| -rw-r--r-- | base/file_util_win.cc | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/base/file_util_win.cc b/base/file_util_win.cc index ab1dc94..2c26a16 100644 --- a/base/file_util_win.cc +++ b/base/file_util_win.cc @@ -938,7 +938,31 @@ MemoryMappedFile::MemoryMappedFile() length_(INVALID_FILE_SIZE) { } +bool MemoryMappedFile::InitializeAsImageSection(const FilePath& file_name) { + if (IsValid()) + return false; + file_ = base::CreatePlatformFile( + file_name, base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ, + NULL, NULL); + + if (file_ == base::kInvalidPlatformFileValue) { + LOG(ERROR) << "Couldn't open " << file_name.value(); + return false; + } + + if (!MapFileToMemoryInternalEx(SEC_IMAGE)) { + CloseHandles(); + return false; + } + + return true; +} + bool MemoryMappedFile::MapFileToMemoryInternal() { + return MapFileToMemoryInternalEx(0); +} + +bool MemoryMappedFile::MapFileToMemoryInternalEx(int flags) { base::ThreadRestrictions::AssertIOAllowed(); if (file_ == INVALID_HANDLE_VALUE) @@ -950,7 +974,7 @@ bool MemoryMappedFile::MapFileToMemoryInternal() { // length_ value comes from GetFileSize() above. GetFileSize() returns DWORD, // therefore the cast here is safe. - file_mapping_ = ::CreateFileMapping(file_, NULL, PAGE_READONLY, + file_mapping_ = ::CreateFileMapping(file_, NULL, PAGE_READONLY | flags, 0, static_cast<DWORD>(length_), NULL); if (!file_mapping_) { // According to msdn, system error codes are only reserved up to 15999. |