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* libc/stdio/local.h (_newlib_flockfile_start): New macro to

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secure stream related critical section against thread cancellation.
	(_newlib_flockfile_exit): Ditto.
	(_newlib_sfp_lock_end): Ditto.
	(_newlib_sfp_lock_start): Ditto for the list of streams.
	(_newlib_sfp_lock_exit): Ditto.
	(_newlib_sfp_lock_end): Ditto.
	Use aforementioned macros in place of _flockfile/_funlockfile
	and __sfp_lock_acquire/__sfp_lock_release throughout the code.
	* libc/stdio/fclose.c: Explicitely disable and re-enable thread
	cancellation.  Explain why.
	* libc/stdio/freopen.c: Ditto.
	* libc/stdio64/freopen64.c: Ditto.
This commit is contained in:
Corinna Vinschen
2012-05-30 08:58:42 +00:00
parent 75b6133098
commit 4aa28d8ae2
46 changed files with 301 additions and 161 deletions
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12
newlib/libc/stdio64/fseeko64.c
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@ -126,7 +126,7 @@ _DEFUN (_fseeko64_r, (ptr, fp, offset, whence),
CHECK_INIT (ptr, fp);
_flockfile (fp);
_newlib_flockfile_start (fp);
curoff = fp->_offset;
@ -144,7 +144,7 @@ _DEFUN (_fseeko64_r, (ptr, fp, offset, whence),
if ((seekfn = fp->_seek64) == NULL)
{
ptr->_errno = ESPIPE; /* ??? */
_funlockfile(fp);
_newlib_flockfile_exit(fp);
return EOF;
}
@ -169,7 +169,7 @@ _DEFUN (_fseeko64_r, (ptr, fp, offset, whence),
curoff = seekfn (ptr, fp->_cookie, (_fpos64_t) 0, SEEK_CUR);
if (curoff == -1L)
{
_funlockfile(fp);
_newlib_flockfile_exit(fp);
return EOF;
}
}
@ -194,7 +194,7 @@ _DEFUN (_fseeko64_r, (ptr, fp, offset, whence),
default:
ptr->_errno = EINVAL;
_funlockfile(fp);
_newlib_flockfile_exit(fp);
return (EOF);
}
@ -294,7 +294,7 @@ _DEFUN (_fseeko64_r, (ptr, fp, offset, whence),
if (HASUB (fp))
FREEUB (ptr, fp);
fp->_flags &= ~__SEOF;
_funlockfile(fp);
_newlib_flockfile_exit(fp);
return 0;
}
@ -323,7 +323,7 @@ _DEFUN (_fseeko64_r, (ptr, fp, offset, whence),
fp->_p += n;
fp->_r -= n;
}
_funlockfile(fp);
_newlib_flockfile_end(fp);
return 0;
/*