diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/htl/libc-lockP.h | 33 | ||||
| -rw-r--r-- | sysdeps/htl/stdio-lock.h | 57 |
2 files changed, 90 insertions, 0 deletions
diff --git a/sysdeps/htl/libc-lockP.h b/sysdeps/htl/libc-lockP.h index 4ba3930a13..0c887d707e 100644 --- a/sysdeps/htl/libc-lockP.h +++ b/sysdeps/htl/libc-lockP.h @@ -19,6 +19,7 @@ #ifndef _BITS_LIBC_LOCKP_H #define _BITS_LIBC_LOCKP_H 1 +#include <libc-lock.h> #include <pthread.h> #include <pthread-functions.h> @@ -73,6 +74,36 @@ typedef pthread_key_t __libc_key_t; __libc_ptf_call (__pthread_setspecific, (KEY, VALUE), 0) +#undef __libc_cleanup_region_start +#undef __libc_cleanup_region_end +#undef __libc_cleanup_end + +#define __libc_cleanup_region_start(DOIT, FCT, ARG) \ + { \ + struct __pthread_cancelation_handler **__handlers = NULL; \ + struct __pthread_cancelation_handler __handler; \ + int _ditit = 0; \ + if (DOIT && __pthread_get_cleanup_stack != NULL) \ + { \ + __handlers = __pthread_get_cleanup_stack (); \ + __handler.__handler = FCT; \ + __handler.__arg = ARG; \ + __handler.__next = *__handlers; \ + *__handlers = &__handler; \ + _ditit = 1; \ + } + +#define __libc_cleanup_end(DOIT) \ + if (_ditit) { \ + if (DOIT) \ + __handler.__handler (__handler.__arg); \ + *__handlers = __handler.__next; \ + } + +#define __libc_cleanup_region_end(DOIT) \ + __libc_cleanup_end(DOIT) \ + } + /* Functions that are used by this file and are internal to the GNU C library. */ @@ -154,6 +185,7 @@ weak_extern (__pthread_once) weak_extern (__pthread_initialize) weak_extern (__pthread_atfork) weak_extern (__pthread_setcancelstate) +weak_extern (__pthread_get_cleanup_stack) # else # pragma weak __pthread_mutex_init # pragma weak __pthread_mutex_destroy @@ -176,6 +208,7 @@ weak_extern (__pthread_setcancelstate) # pragma weak __pthread_initialize # pragma weak __pthread_atfork # pragma weak __pthread_setcancelstate +# pragma weak __pthread_get_cleanup_stack # endif #endif diff --git a/sysdeps/htl/stdio-lock.h b/sysdeps/htl/stdio-lock.h new file mode 100644 index 0000000000..eafd53ad4a --- /dev/null +++ b/sysdeps/htl/stdio-lock.h @@ -0,0 +1,57 @@ +/* Thread package specific definitions of stream lock type. Hurd version. + Copyright (C) 2000-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _STDIO_LOCK_H +#define _STDIO_LOCK_H 1 + +#include <libc-lock.h> + +__libc_lock_define_recursive (typedef, _IO_lock_t) +#define _IO_lock_t_defined 1 + +/* We need recursive (counting) mutexes. */ +# define _IO_lock_initializer _LIBC_LOCK_RECURSIVE_INITIALIZER + +#define _IO_lock_init(_name) __libc_lock_init_recursive (_name) +#define _IO_lock_fini(_name) __libc_lock_fini_recursive (_name) +#define _IO_lock_lock(_name) __libc_lock_lock_recursive (_name) +#define _IO_lock_trylock(_name) __libc_lock_trylock_recursive (_name) +#define _IO_lock_unlock(_name) __libc_lock_unlock_recursive (_name) + + +#define _IO_cleanup_region_start(_fct, _fp) \ + __libc_cleanup_region_start (((_fp)->_flags & _IO_USER_LOCK) == 0, _fct, _fp) +#define _IO_cleanup_region_start_noarg(_fct) \ + __libc_cleanup_region_start (1, _fct, NULL) +#define _IO_cleanup_region_end(_doit) \ + __libc_cleanup_region_end (_doit) + +#if defined _LIBC && IS_IN (libc) + +# define _IO_acquire_lock(_fp) \ + do { \ + _IO_cleanup_region_start((void (*) (void *)) &_IO_funlockfile, _fp); \ + _IO_flockfile (_fp); +# define _IO_release_lock(_fp) \ + _IO_funlockfile (_fp); \ + _IO_cleanup_region_end (0); \ + } while (0) + +#endif + +#endif /* stdio-lock.h */ |