static void really_destroy(grpc_exec_ctx *exec_ctx, grpc_combiner *lock) {
GRPC_COMBINER_TRACE(gpr_log(GPR_DEBUG, "C:%p really_destroy", lock));
GPR_ASSERT(gpr_atm_no_barrier_load(&lock->state) == 0);
gpr_mpscq_destroy(&lock->queue);
GRPC_WORKQUEUE_UNREF(exec_ctx, lock->optional_workqueue, "combiner");
gpr_free(lock);
}
static void start_destroy(grpc_exec_ctx *exec_ctx, grpc_combiner *lock) {
gpr_atm old_state = gpr_atm_full_fetch_add(&lock->state, -STATE_UNORPHANED);
GRPC_COMBINER_TRACE(gpr_log(
GPR_DEBUG, "C:%p really_destroy old_state=%" PRIdPTR, lock, old_state));
if (old_state == 1) {
really_destroy(exec_ctx, lock);
}
}
grpc_combiner *grpc_combiner_create(void) {
grpc_combiner *lock = gpr_malloc(sizeof(*lock));
gpr_ref_init(&lock->refs, 1);
lock->next_combiner_on_this_exec_ctx = NULL;
lock->time_to_execute_final_list = false;
lock->scheduler.vtable = &scheduler;
lock->finally_scheduler.vtable = &finally_scheduler;
gpr_atm_no_barrier_store(&lock->state, STATE_UNORPHANED);
gpr_mpscq_init(&lock->queue);
grpc_closure_list_init(&lock->final_list);
GRPC_CLOSURE_INIT(&lock->offload, offload, lock, grpc_executor_scheduler);
GRPC_COMBINER_TRACE(gpr_log(GPR_DEBUG, "C:%p create", lock));
return lock;
}
grpc_combiner *grpc_combiner_create(grpc_workqueue *optional_workqueue) {
grpc_combiner *lock = gpr_malloc(sizeof(*lock));
gpr_ref_init(&lock->refs, 1);
lock->next_combiner_on_this_exec_ctx = NULL;
lock->time_to_execute_final_list = false;
lock->optional_workqueue = optional_workqueue;
lock->final_list_covered_by_poller = false;
lock->uncovered_scheduler.vtable = &scheduler_uncovered;
lock->covered_scheduler.vtable = &scheduler_covered;
lock->uncovered_finally_scheduler.vtable = &finally_scheduler_uncovered;
lock->covered_finally_scheduler.vtable = &finally_scheduler_covered;
gpr_atm_no_barrier_store(&lock->state, STATE_UNORPHANED);
gpr_atm_no_barrier_store(&lock->elements_covered_by_poller, 0);
gpr_mpscq_init(&lock->queue);
grpc_closure_list_init(&lock->final_list);
grpc_closure_init(&lock->offload, offload, lock,
grpc_workqueue_scheduler(lock->optional_workqueue));
GRPC_COMBINER_TRACE(gpr_log(GPR_DEBUG, "C:%p create", lock));
return lock;
}