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* Update fread().
CORE-8080

svn path=/trunk/; revision=63292
This commit is contained in:
Amine Khaldi 2014-05-14 14:52:00 +00:00
parent e5361e27bd
commit 05ef5aeeed
1 changed files with 7 additions and 8 deletions
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15
reactos/lib/sdk/crt/stdio/file.c
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@ -3293,13 +3293,8 @@ size_t CDECL fread(void *ptr, size_t size, size_t nmemb, FILE* file)
while(rcnt>0)
{
int i;
/* Fill the buffer on small reads.
* TODO: Use a better buffering strategy.
*/
if (!file->_cnt && size*nmemb <= BUFSIZ/2 && !(file->_flag & _IONBF)) {
if (file->_bufsiz == 0) {
alloc_buffer(file);
}
if (!file->_cnt && rcnt<BUFSIZ && !(file->_flag & _IONBF)
&& (file->_bufsiz != 0 || alloc_buffer(file))) {
file->_cnt = _read(file->_file, file->_base, file->_bufsiz);
file->_ptr = file->_base;
i = ((unsigned int)file->_cnt<rcnt) ? file->_cnt : rcnt;
@ -3313,8 +3308,12 @@ size_t CDECL fread(void *ptr, size_t size, size_t nmemb, FILE* file)
file->_cnt -= i;
file->_ptr += i;
}
} else if (rcnt > UINT_MAX) {
i = _read(file->_file, ptr, UINT_MAX);
} else if (rcnt < BUFSIZ) {
i = _read(file->_file, ptr, rcnt);
} else {
i = _read(file->_file,ptr, rcnt);
i = _read(file->_file, ptr, rcnt - BUFSIZ/2);
}
pread += i;
rcnt -= i;