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msvcrt: Make _flsbuf thread safe.

This commit is contained in:
Piotr Caban 2011-05-20 13:22:00 +02:00 committed by Alexandre Julliard
parent f773ad8388
commit c989c4980b
1 changed files with 28 additions and 18 deletions
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14
dlls/msvcrt/file.c
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@ -3025,6 +3025,8 @@ int CDECL MSVCRT_fputc(int c, MSVCRT_FILE* file)
*/
int CDECL MSVCRT__flsbuf(int c, MSVCRT_FILE* file)
{
MSVCRT__lock_file(file);
/* Flush output buffer */
if(file->_bufsiz == 0 && !(file->_flag & MSVCRT__IONBF)) {
msvcrt_alloc_buffer(file);
@ -3033,20 +3035,28 @@ int CDECL MSVCRT__flsbuf(int c, MSVCRT_FILE* file)
if(file->_flag & MSVCRT__IORW) {
file->_flag |= MSVCRT__IOWRT;
} else {
MSVCRT__unlock_file(file);
return MSVCRT_EOF;
}
}
if(file->_bufsiz) {
int res=msvcrt_flush_buffer(file);
return res?res : MSVCRT_fputc(c, file);
if(!res)
res = MSVCRT_fputc(c, file);
MSVCRT__unlock_file(file);
return res;
} else {
unsigned char cc=c;
int len;
/* set _cnt to 0 for unbuffered FILEs */
file->_cnt = 0;
len = MSVCRT__write(file->_file, &cc, 1);
if (len == 1) return c & 0xff;
if (len == 1) {
MSVCRT__unlock_file(file);
return c & 0xff;
}
file->_flag |= MSVCRT__IOERR;
MSVCRT__unlock_file(file);
return MSVCRT_EOF;
}
}