From 4dc0c0c4e5f76c22b39976dd381e04699ab0f09d Mon Sep 17 00:00:00 2001 From: Jeff Johnston Date: Wed, 14 Jun 2006 20:49:11 +0000 Subject: 2006-06-14 Jeff Johnston * libc/include/stdio.h: Add new reentrant I/O prototypes for read/write functions. Change getc/putc macros to have reentrant underlying macros/functions. This includes __sgetc_raw_r, __sgetc_r, and __sputc_r. * libc/stdio/fgetc.c: Fix and/or add reentrant version to call new reentrant I/O functions/macros for reading/writing. * libc/stdio/fgets.c: Ditto. * libc/stdio/fputc.c: Ditto. * libc/stdio/fputs.c: Ditto. * libc/stdio/fread.c: Ditto. * libc/stdio/fseek.c: Ditto. * libc/stdio64/fseeko64.c: Ditto. * libc/stdio/fwrite.c: Ditto. * libc/stdio/getc.c: Ditto. * libc/stdio/getc_u.c: Ditto. * libc/stdio/getchar.c: Ditto. * libc/stdio/getchar_u.c: Ditto. * libc/stdio/putc.c: Ditto. * libc/stdio/putc_u.c: Ditto. * libc/stdio/putchar.c: Ditto. * libc/stdio/puts.c: Ditto. * libc/stdio/vfprintf.c: Ditto. * libc/stdio/vfscanf.c: Ditto. * libc/stdio/fvwrite.c: Change __sfvwrite into reentrant __sfvwrite_r. Change all previous callers of __sfvwrite. Set errno to EBADF and set error flag on if attempt is made to write to file that does not allow writing. * libc/stdio/fvwrite.h: Fix new reentrant prototypes. * libc/stdio/local.h: Ditto. * libc/stdio/refill.c: Turn __srefill into reentrant __srefill_r. Set errno to EBADF and the error flag on if attempt is made to read unreadable file. Change all previous callers of __srefill. * libc/stdio/rget.c * libc/stdio/wbuf.c: Turn __swbuf into reentrant __swbuf_r. Change all previous callers of __swbuf. * libc/sys/linux/machine/i386/huge_val.h: Ifdef out file contents since huge value macros are already defined correctly for i386 by . --- newlib/libc/stdio/fwrite.c | 38 ++++++++++++++++++++++++++++++++++---- 1 file changed, 34 insertions(+), 4 deletions(-) (limited to 'newlib/libc/stdio/fwrite.c') diff --git a/newlib/libc/stdio/fwrite.c b/newlib/libc/stdio/fwrite.c index 663fff62c..8a2159c4a 100644 --- a/newlib/libc/stdio/fwrite.c +++ b/newlib/libc/stdio/fwrite.c @@ -21,12 +21,18 @@ FUNCTION INDEX fwrite +INDEX + _fwrite_r ANSI_SYNOPSIS #include size_t fwrite(const void *<[buf]>, size_t <[size]>, size_t <[count]>, FILE *<[fp]>); + #include + size_t _fwrite_r(struct _reent *<[ptr[>, const void *<[buf]>, size_t <[size]>, + size_t <[count]>, FILE *<[fp]>); + TRAD_SYNOPSIS #include size_t fwrite(<[buf]>, <[size]>, <[count]>, <[fp]>) @@ -35,6 +41,14 @@ TRAD_SYNOPSIS size_t <[count]>; FILE *<[fp]>; + #include + size_t _fwrite_r(<[ptr]>, <[buf]>, <[size]>, <[count]>, <[fp]>) + struct _reent *<[ptr]>; + char *<[buf]>; + size_t <[size]>; + size_t <[count]>; + FILE *<[fp]>; + DESCRIPTION <> attempts to copy, starting from the memory location <[buf]>, <[count]> elements (each of size <[size]>) into the file or @@ -44,6 +58,9 @@ stream identified by <[fp]>. <> may copy fewer elements than <> also advances the file position indicator (if any) for <[fp]> by the number of @emph{characters} actually written. +<<_fwrite_r>> is simply the reentrant version of <> that +takes an additional reentrant structure argument: <[ptr]>. + RETURNS If <> succeeds in writing all the elements you specify, the result is the same as the argument <[count]>. In any event, the @@ -78,7 +95,8 @@ static char sccsid[] = "%W% (Berkeley) %G%"; */ size_t -_DEFUN(fwrite, (buf, size, count, fp), +_DEFUN(_fwrite_r, (ptr, buf, size, count, fp), + struct _reent * ptr _AND _CONST _PTR buf _AND size_t size _AND size_t count _AND @@ -94,15 +112,15 @@ _DEFUN(fwrite, (buf, size, count, fp), uio.uio_iovcnt = 1; /* - * The usual case is success (__sfvwrite returns 0); + * The usual case is success (__sfvwrite_r returns 0); * skip the divide if this happens, since divides are * generally slow and since this occurs whenever size==0. */ - CHECK_INIT(_REENT); + CHECK_INIT(ptr); _flockfile (fp); - if (__sfvwrite (fp, &uio) == 0) + if (__sfvwrite_r (ptr, fp, &uio) == 0) { _funlockfile (fp); return count; @@ -110,3 +128,15 @@ _DEFUN(fwrite, (buf, size, count, fp), _funlockfile (fp); return (n - uio.uio_resid) / size; } + +#ifndef _REENT_ONLY +size_t +_DEFUN(fwrite, (buf, size, count, fp), + _CONST _PTR buf _AND + size_t size _AND + size_t count _AND + FILE * fp) +{ + return _fwrite_r (_REENT, buf, size, count, fp); +} +#endif -- cgit v1.2.3