base/files/memory_mapped_file_posix.cc - Issue 430583005: Make VEA test support videos with different coded size and visible size

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Unified Diff: base/files/memory_mapped_file_posix.cc

Issue 430583005: Make VEA test support videos with different coded size and visible size (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: address review comments of patch set 12 Created 6 years, 4 months ago

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Index: base/files/memory_mapped_file_posix.cc

diff --git a/base/files/memory_mapped_file_posix.cc b/base/files/memory_mapped_file_posix.cc

index ebf38779f039708835242eb19ed7223927a28f40..6d44484ef16b0612d7ec28ce02b8d87d8a7e8c57 100644

--- a/base/files/memory_mapped_file_posix.cc

+++ b/base/files/memory_mapped_file_posix.cc

@@ -17,7 +17,7 @@ MemoryMappedFile::MemoryMappedFile() : data_(NULL), length_(0) {

}

bool MemoryMappedFile::MapFileRegionToMemory(

- const MemoryMappedFile::Region& region) {

+ const MemoryMappedFile::Region& region, bool write) {

ThreadRestrictions::AssertIOAllowed();

off_t map_start = 0;

@@ -60,9 +60,12 @@ bool MemoryMappedFile::MapFileRegionToMemory(

length_ = static_cast<size_t>(region.size);

}

+ int flags = PROT_READ;

+ if (write)

+ flags |= PROT_WRITE;

data_ = static_cast<uint8*>(mmap(NULL,

map_size,

- PROT_READ,

+ flags,

MAP_SHARED,

file_.GetPlatformFile(),

map_start));