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NAME CK_COHORT_TRYLOCK -- try to acquire cohort lock LIBRARY Concurrency Kit (libck, -lck) SYNOPSIS #include <ck_cohort.h> CK_COHORT_TRYLOCK(COHORT_NAME cohort_name, COHORT *cohort, void *global_trylock_context, void *local_trylock_context, void *lock_unlock_context); DESCRIPTION This call attempts to acquire both the local and global (if necessary) locks from cohort. It can only be used with cohort types that were defined using the CK_COHORT_TRYLOCK_PROTOTYPE(3) macro. The call will not block and will return a bool that will evaluate to true iff the cohort was suc- cessfully acquired. global_trylock_context will be passed as the second argument to the function that was provided as the global_trylock_method ar- gument to CK_COHORT_TRYLOCK_PROTOTYPE if that method is called, and local_trylock_context will be passed to the function specified by local_trylock_method. If the global lock acquisition fails, then the co- hort will immediately release its local lock as well, and local_unlock_context will be passed to the function specified by local_unlock_method when this call is made. SEE ALSO ck_cohort(3), CK_COHORT_PROTOTYPE(3), CK_COHORT_TRYLOCK_PROTOTYPE(3), CK_COHORT_INSTANCE(3), CK_COHORT_INITIALIZER(3), CK_COHORT_INIT(3), CK_CO- HORT_LOCK(3), CK_COHORT_UNLOCK(3), CK_COHORT_LOCKED(3), Additional information available at http://concurrencykit.org/ March 9, 2013. CK_COHORT_TRYLOCK(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO
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