diff options
| author | Aaron Merey <[email protected]> | 2025-02-19 23:36:36 -0500 |
|---|---|---|
| committer | Aaron Merey <[email protected]> | 2025-03-26 17:01:24 -0400 |
| commit | e9cd1d2951f4abb00b6e9edec225dde9c378bec3 (patch) | |
| tree | cc1c736d1fafebcb4f4b08aa0559dc3023d2bbfb /lib | |
| parent | 66ae4b7ed9fd8dfd95c1276e752b279fc1aad996 (diff) | |
Change type of dwarf_lock from rwlock to mutex
Change type of dwarf_lock to mutex in order to take advantage of
built-in support for recursive locking.
* lib/locks.h: Add macros for locking, unlocking, initializing
and destroying mutexes.
* libdw/dwarf_begin_elf.c (dwarf_end): Replace rwlock macro with
mutex macro.
* libdw/dwarf_formref_die.c (dwarf_formref_die): Ditto.
* libdw/dwarf_getalt.c (dwarf_getalt): Ditto.
* libdw/dwarf_setalt.c (dwarf_setalt): Ditto.
* libdw/libdwP.h (struct Dwarf): Ditto.
* libdw/libdw_findcu.c (__libdw_findcu): Ditto.
Signed-off-by: Aaron Merey <[email protected]>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/locks.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/locks.h b/lib/locks.h index 90fe3f1b..9c17eca7 100644 --- a/lib/locks.h +++ b/lib/locks.h @@ -43,6 +43,17 @@ # define rwlock_rdlock(lock) RWLOCK_CALL (rdlock (&lock)) # define rwlock_wrlock(lock) RWLOCK_CALL (wrlock (&lock)) # define rwlock_unlock(lock) RWLOCK_CALL (unlock (&lock)) +# define mutex_define(class,name) class pthread_mutex_t name +# define MUTEX_CALL(call) \ + ({ int _err = pthread_mutex_ ## call; assert_perror (_err); }) +# define mutex_init(lock) \ + ({ pthread_mutexattr_t _attr; \ + pthread_mutexattr_init (&_attr); \ + pthread_mutexattr_settype (&_attr, PTHREAD_MUTEX_RECURSIVE); \ + MUTEX_CALL (init (&lock, &_attr)); }) +# define mutex_lock(_lock) MUTEX_CALL (lock (&_lock)) +# define mutex_unlock(lock) MUTEX_CALL (unlock (&lock)) +# define mutex_fini(lock) MUTEX_CALL (destroy (&lock)) # define once(once_control, init_routine) \ ONCE_CALL (once (&once_control, init_routine)) #else @@ -55,6 +66,11 @@ # define rwlock_rdlock(lock) ((void) (lock)) # define rwlock_wrlock(lock) ((void) (lock)) # define rwlock_unlock(lock) ((void) (lock)) +# define mutex_define(class,name) class int name +# define mutex_init(lock) ((void) (lock)) +# define mutex_lock(lock) ((void) (lock)) +# define mutex_unlock(lock) ((void) (lock)) +# define mutex_fini(lock) ((void) (lock)) # define once_define(class,name) # define once(once_control, init_routine) init_routine() #endif /* USE_LOCKS */ |