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CK_RWCOHORT_READ_LOCK(3)                    DragonFly Library Functions Manual


NAME

     CK_RWCOHORT_READ_LOCK - acquire read-only permission for cohort-based
     reader-writer lock


LIBRARY

     Concurrency Kit (libck, -lck)


SYNOPSIS

     #include <ck_cohort.h>

     CK_RWCOHORT_NEUTRAL_READ_LOCK(COHORT_NAME cohort_name, LOCK *lock,
         COHORT *cohort"void *global_context, void *local_context);

     CK_RWCOHORT_RP_READ_LOCK(COHORT_NAME cohort_name, LOCK *lock,
         COHORT *cohort"void *global_context, void *local_context);

     CK_RWCOHORT_WP_READ_LOCK(COHORT_NAME cohort_name, LOCK *lock,
         COHORT *cohort"void *global_context, void *local_context);


DESCRIPTION

     This call will acquire read-only permission from lock.  The call will
     block until this permission has been acquired.  cohort must point to a
     cohort whose global lock is the same as all other cohorts used with lock.
     The global_context and local_context arguments will be passed along as
     the context arguments to any calls to cohort.


SEE ALSO

     ck_cohort(3), CK_RWCOHORT_PROTOTYPE(3), CK_RWCOHORT_INSTANCE(3),
     CK_RWCOHORT_INITIALIZER(3), CK_RWCOHORT_INIT(3),
     CK_RWCOHORT_READ_UNLOCK(3), CK_RWCOHORT_WRITE_LOCK(3),
     CK_RWCOHORT_WRITE_UNLOCK(3),

     Additional information available at http://concurrencykit.org/

                              February 24, 2013.

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