_gfortran_caf_lock— Unlocking a lock variable ¶
Release a lock on the given image on a scalar locking variable or for the given array element for an array-valued variable. Unlocking a lock variable which is unlocked or has been locked by a different image is an error.
void _gfortran_caf_unlock (caf_token_t token, size_t index, int image_index,
int *stat, char *errmsg, size_t errmsg_len)
|token||intent(in) An opaque pointer identifying the coarray.|
|index||intent(in) Array index; first array index is 0. For scalars, it is always 0.|
|image_index||intent(in) The ID of the remote image; must be a positive number.|
|stat||intent(out) For allocatable coarrays, stores the STAT=; may be NULL.|
|errmsg||intent(out) When an error occurs, this will be set to an error message; may be NULL.|
|errmsg_len||intent(in) the buffer size of errmsg|
This function is also called for critical block; for those, the array index is always zero and the image index is one. Libraries are permitted to use other images for critical-block locking variables.