20 lines
		
	
	
		
			393 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			20 lines
		
	
	
		
			393 B
		
	
	
	
		
			C
		
	
	
	
	
	
| #ifndef _PERF_RWSEM_H
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| #define _PERF_RWSEM_H
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| 
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| #include <pthread.h>
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| 
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| struct rw_semaphore {
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| 	pthread_rwlock_t lock;
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| };
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| 
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| int init_rwsem(struct rw_semaphore *sem);
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| int exit_rwsem(struct rw_semaphore *sem);
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| 
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| int down_read(struct rw_semaphore *sem);
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| int up_read(struct rw_semaphore *sem);
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| 
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| int down_write(struct rw_semaphore *sem);
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| int up_write(struct rw_semaphore *sem);
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| 
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| #endif /* _PERF_RWSEM_H */
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