diff options
| author | Zhihao Cheng <chengzhihao1@huawei.com> | 2024-11-11 16:36:48 +0800 |
|---|---|---|
| committer | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2024-11-11 10:32:45 +0100 |
| commit | 2ac0a0ef95f731c75c8dd6f17ffd947000e7d61c (patch) | |
| tree | e4f831c001bba81375c9a5d497539ecff2048f87 /ubifs-utils | |
| parent | 9ce4a0e99198995bb7bf57076066b35fed23b8d3 (diff) | |
ubifs-utils: Add mutexlock implementations
Add mutexlock implementations, because there are some mutexlocks
(eg. c->tnc_mutex, c->log_mutex) used in UBIFS linux kernel libs.
The mutexlock is implemented based on pthread mutex.
This is a preparation for replacing implementation of UBIFS utils with
linux kernel libs.
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'ubifs-utils')
| -rw-r--r-- | ubifs-utils/Makemodule.am | 1 | ||||
| -rw-r--r-- | ubifs-utils/common/mutex.h | 18 |
2 files changed, 19 insertions, 0 deletions
diff --git a/ubifs-utils/Makemodule.am b/ubifs-utils/Makemodule.am index 7849114..9f33f0d 100644 --- a/ubifs-utils/Makemodule.am +++ b/ubifs-utils/Makemodule.am @@ -6,6 +6,7 @@ common_SOURCES = \ ubifs-utils/common/bitops.h \ ubifs-utils/common/bitops.c \ ubifs-utils/common/spinlock.h \ + ubifs-utils/common/mutex.h \ ubifs-utils/common/kmem.h \ ubifs-utils/common/kmem.c \ ubifs-utils/common/defs.h \ diff --git a/ubifs-utils/common/mutex.h b/ubifs-utils/common/mutex.h new file mode 100644 index 0000000..4bf018b --- /dev/null +++ b/ubifs-utils/common/mutex.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LINUX_MUTEX_H_ +#define __LINUX_MUTEX_H_ + +#include <pthread.h> + +struct mutex { + pthread_mutex_t lock; +}; + +#define mutex_init(x) pthread_mutex_init(&(x)->lock, NULL) + +#define mutex_lock(x) pthread_mutex_lock(&(x)->lock) +#define mutex_lock_nested(x, c) pthread_mutex_lock(&(x)->lock) +#define mutex_unlock(x) pthread_mutex_unlock(&(x)->lock) +#define mutex_is_locked(x) (pthread_mutex_trylock(&(x)->lock) == EBUSY) + +#endif |