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pthread_rwlock_init(3) [osx man page]

PTHREAD_RWLOCK_INIT(3)					   BSD Library Functions Manual 				    PTHREAD_RWLOCK_INIT(3)

NAME
pthread_rwlock_init -- initialize a read/write lock SYNOPSIS
#include <pthread.h> int pthread_rwlock_init(pthread_rwlock_t *restrict rwlock, const pthread_rwlockattr_t *restrict attr); DESCRIPTION
The pthread_rwlock_init() function is used to initialize a read/write lock, with attributes specified by attr. If attr is NULL, the default read/write lock attributes are used. The results of calling pthread_rwlock_init() with an already initialized lock are undefined. RETURN VALUES
If successful, the pthread_rwlock_init() function will return zero. Otherwise, an error number will be returned to indicate the error. SEE ALSO
pthread_rwlock_destroy(3), pthread_rwlockattr_init(3), pthread_rwlockattr_setpshared(3) STANDARDS
The pthread_rwlock_init() function is expected to conform to Version 2 of the Single UNIX Specification (``SUSv2''). ERRORS
The pthread_rwlock_init() function will fail if: [EAGAIN] The system lacked the necessary resources (other than memory) to initialize the lock. [ENOMEM] Insufficient memory exists to initialize the lock. [EPERM] The caller does not have sufficient privilege to perform the operation. The pthread_rwlock_init() function may fail if: [EBUSY] The system has detected an attempt to re-initialize the object referenced by rwlock, a previously initialized but not yet destroyed read/write lock. [EINVAL] The value specified by attr is invalid. HISTORY
The pthread_rwlock_init() function first appeared in FreeBSD 3.0. BUGS
The PTHREAD_PROCESS_SHARED attribute is not supported. BSD
August 4, 1998 BSD

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PTHREAD_RWLOCK_INIT(3)					   BSD Library Functions Manual 				    PTHREAD_RWLOCK_INIT(3)

NAME
pthread_rwlock_init -- initialize a read/write lock LIBRARY
POSIX Threads Library (libpthread, -lpthread) SYNOPSIS
#include <pthread.h> int pthread_rwlock_init(pthread_rwlock_t *lock, const pthread_rwlockattr_t *attr); DESCRIPTION
The pthread_rwlock_init() function is used to initialize a read/write lock, with attributes specified by attr. If attr is NULL, the default read/write lock attributes are used. The results of calling pthread_rwlock_init() with an already initialized lock are undefined. RETURN VALUES
If successful, the pthread_rwlock_init() function will return zero. Otherwise an error number will be returned to indicate the error. ERRORS
The pthread_rwlock_init() function will fail if: [EAGAIN] The system lacked the necessary resources (other than memory) to initialize the lock. [ENOMEM] Insufficient memory exists to initialize the lock. [EPERM] The caller does not have sufficient privilege to perform the operation. The pthread_rwlock_init() function may fail if: [EBUSY] The system has detected an attempt to re-initialize the object referenced by lock, a previously initialized but not yet destroyed read/write lock. [EINVAL] The value specified by attr is invalid. SEE ALSO
pthread_rwlock_destroy(3), pthread_rwlockattr_init(3), pthread_rwlockattr_setpshared(3) STANDARDS
The pthread_rwlock_init() function is expected to conform to Version 2 of the Single UNIX Specification (``SUSv2''). HISTORY
The pthread_rwlock_init() function first appeared in FreeBSD 3.0. BUGS
The PTHREAD_PROCESS_SHARED attribute is not supported. BSD
August 4, 1998 BSD
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