Index: skia/images/SkMMapStream.cpp |
=================================================================== |
--- skia/images/SkMMapStream.cpp (revision 16859) |
+++ skia/images/SkMMapStream.cpp (working copy) |
@@ -1,63 +0,0 @@ |
-#include "SkMMapStream.h" |
- |
-#include <unistd.h> |
-#include <sys/mman.h> |
-#include <fcntl.h> |
-#include <errno.h> |
- |
-SkMMAPStream::SkMMAPStream(const char filename[]) |
-{ |
- fFildes = -1; // initialize to failure case |
- |
- int fildes = open(filename, O_RDONLY); |
- if (fildes < 0) |
- { |
- SkDEBUGF(("---- failed to open(%s) for mmap stream error=%d\n", filename, errno)); |
- return; |
- } |
- |
- off_t size = lseek(fildes, 0, SEEK_END); // find the file size |
- if (size == -1) |
- { |
- SkDEBUGF(("---- failed to lseek(%s) for mmap stream error=%d\n", filename, errno)); |
- close(fildes); |
- return; |
- } |
- (void)lseek(fildes, 0, SEEK_SET); // restore file offset to beginning |
- |
- void* addr = mmap(NULL, size, PROT_READ, MAP_SHARED, fildes, 0); |
- if (MAP_FAILED == addr) |
- { |
- SkDEBUGF(("---- failed to mmap(%s) for mmap stream error=%d\n", filename, errno)); |
- close(fildes); |
- return; |
- } |
- |
- this->INHERITED::setMemory(addr, size); |
- |
- fFildes = fildes; |
- fAddr = addr; |
- fSize = size; |
-} |
- |
-SkMMAPStream::~SkMMAPStream() |
-{ |
- this->closeMMap(); |
-} |
- |
-void SkMMAPStream::setMemory(const void* data, size_t length) |
-{ |
- this->closeMMap(); |
- this->INHERITED::setMemory(data, length); |
-} |
- |
-void SkMMAPStream::closeMMap() |
-{ |
- if (fFildes >= 0) |
- { |
- munmap(fAddr, fSize); |
- close(fFildes); |
- fFildes = -1; |
- } |
-} |
- |