pthread_cond_destroy(2)                         pthread_cond_destroy(2)

  pthread_cond_destroy()

  NAME

    pthread_cond_destroy(), pthread_cond_init() - destroy or initialize a
    condition variable

  SYNOPSIS

    #include 

    int pthread_cond_destroy(pthread_cond_t *cond);
    int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t
    *attr);
    pthread_cond_t cond = PTHREAD_COND_INITIALIZER;

  DESCRIPTION

    The pthread_cond_init(2) function initializes the condition variable
    referenced by the cond argument using the attributes specified by the attr
    argument. If attr is NULL, default condition variable attributes are used,
    as though the address of a default condition variable attributes object
    had been passed in attr instead. The macro PTHREAD_COND_INITIALIZER can be
    used to initialize a statically allocated condition variable with default
    attributes.

    The pthread_cond_destroy(2) function destroys (uninitializes) the
    condition variable referenced by cond. The condition variable must be
    reinitialized using pthread_cond_init() before it can be reused.

  RETURN VALUES

    On success, both functions return 0; otherwise, an error code is returned.

  ERRORS

    The pthread_cond_destroy() function can fail for the following reasons:

    [EBUSY]
        An attempt was made to destroy the condition variable referenced by
        cond while it was still referenced by another thread. For example, the
        application attempted to destroy a condition variable that was being
        by another thread in a call to pthread_cond_timedwait(2).

    [EINVAL]
        The cond value is invalid.

    The pthread_cond_init() function can fail for the following reasons:

    [EAGAIN]
        There were insufficient resources (other than memory) to initialize
        the condition variable.

    [EBUSY]
        An attempt was made to reinitialize an existing condition variable.

    [EINVAL]
        The attr argument is invalid.

    [ENOMEM]
        There is not enough memory to initialize the condition variable.

    Neither function returns [EINTR].

  SEE ALSO

    pthread_cond_broadcast(2)

    pthread_cond_timedwait(2)

  USAGE NOTES

    All of these functions are thread safe.

    None of these functions are async-signal safe.