Piotr Caban : msvcrt: Use file-> _flag to check if file buffering is enabled.
Module: wine Branch: master Commit: fffbc8e570e024558ddd21e2aab5fabf8b2056a8 URL: http://source.winehq.org/git/wine.git/?a=commit;h=fffbc8e570e024558ddd21e2aa... Author: Piotr Caban <piotr(a)codeweavers.com> Date: Fri Jun 27 10:17:24 2014 +0200 msvcrt: Use file->_flag to check if file buffering is enabled. --- dlls/msvcrt/file.c | 66 +++++++++++++++++++++++++++++------------------------- 1 file changed, 36 insertions(+), 30 deletions(-) diff --git a/dlls/msvcrt/file.c b/dlls/msvcrt/file.c index 465a417..77ec853 100644 --- a/dlls/msvcrt/file.c +++ b/dlls/msvcrt/file.c @@ -588,7 +588,7 @@ void msvcrt_init_io(void) /* INTERNAL: Flush stdio file buffer */ static int msvcrt_flush_buffer(MSVCRT_FILE* file) { - if(file->_bufsiz) { + if(file->_flag & (MSVCRT__IOMYBUF | MSVCRT__USERBUF)) { int cnt=file->_ptr-file->_base; if(cnt>0 && MSVCRT__write(file->_file, file->_base, cnt) != cnt) { file->_flag |= MSVCRT__IOERR; @@ -627,8 +627,8 @@ static BOOL msvcrt_alloc_buffer(MSVCRT_FILE* file) file->_flag |= MSVCRT__IOMYBUF; } else { file->_base = (char*)(&file->_charbuf); - /* put here 2 ??? */ - file->_bufsiz = sizeof(file->_charbuf); + file->_bufsiz = 2; + file->_flag |= MSVCRT__IONBF; } file->_ptr = file->_base; file->_cnt = 0; @@ -641,11 +641,13 @@ static BOOL add_std_buffer(MSVCRT_FILE *file) static char buffers[2][MSVCRT_BUFSIZ]; if((file->_file!=MSVCRT_STDOUT_FILENO && file->_file!=MSVCRT_STDERR_FILENO) - || !MSVCRT__isatty(file->_file) || file->_bufsiz) + || (file->_flag & (MSVCRT__IONBF | MSVCRT__IOMYBUF | MSVCRT__USERBUF)) + || !MSVCRT__isatty(file->_file)) return FALSE; file->_ptr = file->_base = buffers[file->_file == MSVCRT_STDOUT_FILENO ? 0 : 1]; file->_bufsiz = file->_cnt = MSVCRT_BUFSIZ; + file->_flag |= MSVCRT__USERBUF; return TRUE; } @@ -656,6 +658,7 @@ static void remove_std_buffer(MSVCRT_FILE *file) msvcrt_flush_buffer(file); file->_ptr = file->_base = NULL; file->_bufsiz = file->_cnt = 0; + file->_flag &= ~MSVCRT__USERBUF; } /* INTERNAL: Convert integer to base32 string (0-9a-v), 0 becomes "" */ @@ -3413,7 +3416,7 @@ int CDECL MSVCRT__filbuf(MSVCRT_FILE* file) } /* Allocate buffer if needed */ - if(file->_bufsiz == 0 && !(file->_flag & MSVCRT__IONBF)) + if(!(file->_flag & (MSVCRT__IONBF | MSVCRT__IOMYBUF | MSVCRT__USERBUF))) msvcrt_alloc_buffer(file); if(!(file->_flag & MSVCRT__IOREAD)) { @@ -3425,7 +3428,7 @@ int CDECL MSVCRT__filbuf(MSVCRT_FILE* file) } } - if(file->_flag & MSVCRT__IONBF) { + if(!(file->_flag & (MSVCRT__IOMYBUF | MSVCRT__USERBUF))) { int r; if ((r = read_i(file->_file,&c,1)) != 1) { file->_flag |= (r == 0) ? MSVCRT__IOEOF : MSVCRT__IOERR; @@ -3647,7 +3650,7 @@ MSVCRT_wchar_t * CDECL MSVCRT_fgetws(MSVCRT_wchar_t *s, int size, MSVCRT_FILE* f int CDECL MSVCRT__flsbuf(int c, MSVCRT_FILE* file) { /* Flush output buffer */ - if(file->_bufsiz == 0 && !(file->_flag & MSVCRT__IONBF)) { + if(!(file->_flag & (MSVCRT__IONBF | MSVCRT__IOMYBUF | MSVCRT__USERBUF))) { msvcrt_alloc_buffer(file); } if(!(file->_flag & MSVCRT__IOWRT)) { @@ -3656,7 +3659,7 @@ int CDECL MSVCRT__flsbuf(int c, MSVCRT_FILE* file) else return MSVCRT_EOF; } - if(file->_bufsiz && !(file->_flag&MSVCRT__IONBF)) { + if(file->_flag & (MSVCRT__IOMYBUF | MSVCRT__USERBUF)) { int res = 0; if(file->_cnt <= 0) { @@ -3706,22 +3709,21 @@ MSVCRT_size_t CDECL MSVCRT_fwrite(const void *ptr, MSVCRT_size_t size, MSVCRT_si written += pcnt; wrcnt -= pcnt; ptr = (const char*)ptr + pcnt; - } else if(!file->_bufsiz && (file->_flag & MSVCRT__IONBF)) { - if(!(file->_flag & MSVCRT__IOWRT)) { - if(file->_flag & MSVCRT__IORW) - file->_flag |= MSVCRT__IOWRT; - else - break; - } + } else if((file->_flag & MSVCRT__IONBF) + || ((file->_flag & (MSVCRT__IOMYBUF | MSVCRT__USERBUF)) && wrcnt >= file->_bufsiz) + || (!(file->_flag & (MSVCRT__IOMYBUF | MSVCRT__USERBUF)) && wrcnt >= MSVCRT_INTERNAL_BUFSIZ)) { + MSVCRT_size_t pcnt; + int bufsiz; + + if(file->_flag & MSVCRT__IONBF) + bufsiz = 1; + else if(!(file->_flag & (MSVCRT__IOMYBUF | MSVCRT__USERBUF))) + bufsiz = MSVCRT_INTERNAL_BUFSIZ; + else + bufsiz = file->_bufsiz; + + pcnt = (wrcnt / bufsiz) * bufsiz; - if(MSVCRT__write(file->_file, ptr, wrcnt) <= 0) { - file->_flag |= MSVCRT__IOERR; - break; - } - written += wrcnt; - wrcnt = 0; - } else if(file->_bufsiz && wrcnt >= file->_bufsiz) { - MSVCRT_size_t pcnt=(wrcnt / file->_bufsiz) * file->_bufsiz; if(msvcrt_flush_buffer(file) == MSVCRT_EOF) break; @@ -3939,7 +3941,7 @@ MSVCRT_size_t CDECL MSVCRT_fread(void *ptr, MSVCRT_size_t size, MSVCRT_size_t nm { MSVCRT_size_t rcnt=size * nmemb; MSVCRT_size_t read=0; - int pread=0; + MSVCRT_size_t pread=0; if(!rcnt) return 0; @@ -3963,11 +3965,14 @@ MSVCRT_size_t CDECL MSVCRT_fread(void *ptr, MSVCRT_size_t size, MSVCRT_size_t nm return 0; } } + + if(rcnt>0 && !(file->_flag & (MSVCRT__IONBF | MSVCRT__IOMYBUF | MSVCRT__USERBUF))) + msvcrt_alloc_buffer(file); + while(rcnt>0) { int i; - if (!file->_cnt && rcnt<MSVCRT_BUFSIZ && !(file->_flag & MSVCRT__IONBF) - && (file->_bufsiz != 0 || msvcrt_alloc_buffer(file))) { + if (!file->_cnt && rcnt<MSVCRT_BUFSIZ && (file->_flag & (MSVCRT__IOMYBUF | MSVCRT__USERBUF))) { file->_cnt = MSVCRT__read(file->_file, file->_base, file->_bufsiz); file->_ptr = file->_base; i = (file->_cnt<rcnt) ? file->_cnt : rcnt; @@ -3981,8 +3986,8 @@ MSVCRT_size_t CDECL MSVCRT_fread(void *ptr, MSVCRT_size_t size, MSVCRT_size_t nm file->_cnt -= i; file->_ptr += i; } - } else if (rcnt > UINT_MAX) { - i = MSVCRT__read(file->_file, ptr, UINT_MAX); + } else if (rcnt > INT_MAX) { + i = MSVCRT__read(file->_file, ptr, INT_MAX); } else if (rcnt < MSVCRT_BUFSIZ) { i = MSVCRT__read(file->_file, ptr, rcnt); } else { @@ -4190,7 +4195,7 @@ __int64 CDECL MSVCRT__ftelli64(MSVCRT_FILE* file) MSVCRT__unlock_file(file); return -1; } - if(file->_bufsiz) { + if(file->_flag & (MSVCRT__IOMYBUF | MSVCRT__USERBUF)) { if(file->_flag & MSVCRT__IOWRT) { pos += file->_ptr - file->_base; @@ -4879,7 +4884,8 @@ int CDECL MSVCRT_ungetc(int c, MSVCRT_FILE * file) return MSVCRT_EOF; MSVCRT__lock_file(file); - if((!file->_bufsiz && msvcrt_alloc_buffer(file)) + if((!(file->_flag & (MSVCRT__IONBF | MSVCRT__IOMYBUF | MSVCRT__USERBUF)) + && msvcrt_alloc_buffer(file)) || (!file->_cnt && file->_ptr==file->_base)) file->_ptr++;
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Alexandre Julliard