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* sysdeps/mach/hurd/bits/libc-lock.h: New file, initially copied from

Browse Source 
sysdeps/mach version.  Implement counting ("recursive") mutexes
	on top of cthreads mutexes.
	* sysdeps/mach/hurd/bits/stdio-lock.h: File removed; generic now works.

	* sysdeps/generic/bits/stdio-lock.h (_IO_lock_initializer): Define to
	_LIBC_LOCK_RECURSIVE_INITIALIZER if defined, else do an #error.
	(__libc_cleanup_region_start, __libc_cleanup_region_end,
	__libc_clean_end): Define these to call the cleanup function after
	normal exit when they're supposed to.

	* sysdeps/mach/bits/libc-lock.h (__libc_cleanup_region_start):
	Take new first arg DOIT, a boolean saying whether to really install
	any cleanup handler.
	(__libc_cleanup_region_end): Do nothing if start's DOIT arg was zero.
	(__libc_cleanup_end): Likewise.
	* stdio-common/vfscanf.c (LOCK_STREAM): Pass new arg.
	* stdio-common/vfprintf.c (buffered_vfprintf, vfprintf): Likewise.
	* sysdeps/mach/hurd/bits/stdio-lock.h (_IO_cleanup_region_start):
	Likewise.
	* misc/syslog.c (vsyslog, openlog, closelog): Likewise.
	* sysdeps/generic/bits/stdio-lock.h
	(_IO_cleanup_region_start, _IO_cleanup_region_start_noarg): Likewise.
This commit is contained in:
Roland McGrath
2001-08-24 03:21:51 +00:00
parent 28cb929572
commit 0dce3d154c
7 changed files with 222 additions and 76 deletions
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8
misc/syslog.c
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@ -216,7 +216,7 @@ vsyslog(pri, fmt, ap)
/* Prepare for multiple users. We have to take care: open and
write are cancellation points. */
__libc_cleanup_region_start ((void (*) (void *)) cancel_handler,
__libc_cleanup_region_start (1, (void (*) (void *)) cancel_handler,
&oldaction_ptr);
__libc_lock_lock (syslog_lock);
@ -315,7 +315,8 @@ void
openlog (const char *ident, int logstat, int logfac)
{
/* Protect against multiple users. */
__libc_cleanup_region_start ((void (*) __P ((void *))) __libc_mutex_unlock,
__libc_cleanup_region_start (1,
(void (*) __P ((void *))) __libc_mutex_unlock,
&syslog_lock);
__libc_lock_lock (syslog_lock);
@ -346,7 +347,8 @@ void
closelog ()
{
/* Protect against multiple users. */
__libc_cleanup_region_start ((void (*) __P ((void *))) __libc_mutex_unlock,
__libc_cleanup_region_start (1,
(void (*) __P ((void *))) __libc_mutex_unlock,
&syslog_lock);
__libc_lock_lock (syslog_lock);