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win32: Allow other programs to open the same files

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In order to match Linux behaviour better our Windows-specific
open() replacement should disable Windows default file locking.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Reimar Döffinger 2012-01-20 20:27:22 +01:00 committed by Martin Storsjö
parent cfe5908a72
commit e9cc988395
1 changed files with 3 additions and 2 deletions
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5
libavformat/os_support.c
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@ -32,6 +32,7 @@
#include <fcntl.h>
#include <io.h>
#include <windows.h>
#include <share.h>
int ff_win32_open(const char *filename_utf8, int oflag, int pmode)
{
@ -46,12 +47,12 @@ int ff_win32_open(const char *filename_utf8, int oflag, int pmode)
filename_w = av_mallocz(sizeof(wchar_t) * num_chars);
MultiByteToWideChar(CP_UTF8, 0, filename_utf8, -1, filename_w, num_chars);
fd = _wopen(filename_w, oflag, pmode);
fd = _wsopen(filename_w, oflag, SH_DENYNO, pmode);
av_freep(&filename_w);
/* filename maybe be in CP_ACP */
if (fd == -1 && !(oflag & O_CREAT))
return open(filename_utf8, oflag, pmode);
return _sopen(filename_utf8, oflag, SH_DENYNO, pmode);
return fd;
}