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/*
*
* Copyright 2016 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <grpc/support/port_platform.h>
#ifdef GRPC_UV
#include <uv.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include "test/core/end2end/cq_verifier_internal.h"
typedef enum timer_state {
TIMER_STARTED,
TIMER_TRIGGERED,
TIMER_CLOSED
} timer_state;
/* the verifier itself */
struct cq_verifier {
/* bound completion queue */
grpc_completion_queue *cq;
/* start of expectation list */
expectation *first_expectation;
uv_timer_t timer;
};
cq_verifier *cq_verifier_create(grpc_completion_queue *cq) {
cq_verifier *v = gpr_malloc(sizeof(cq_verifier));
v->cq = cq;
v->first_expectation = NULL;
uv_timer_init(uv_default_loop(), &v->timer);
v->timer.data = (void *)TIMER_STARTED;
return v;
}
static void timer_close_cb(uv_handle_t *handle) {
handle->data = (void *)TIMER_CLOSED;
}
void cq_verifier_destroy(cq_verifier *v) {
cq_verify(v);
uv_close((uv_handle_t *)&v->timer, timer_close_cb);
while ((timer_state)v->timer.data != TIMER_CLOSED) {
uv_run(uv_default_loop(), UV_RUN_NOWAIT);
}
gpr_free(v);
}
expectation *cq_verifier_get_first_expectation(cq_verifier *v) {
return v->first_expectation;
}
void cq_verifier_set_first_expectation(cq_verifier *v, expectation *e) {
v->first_expectation = e;
}
static void timer_run_cb(uv_timer_t *timer) {
timer->data = (void *)TIMER_TRIGGERED;
}
grpc_event cq_verifier_next_event(cq_verifier *v, int timeout_seconds) {
uint64_t timeout_ms =
timeout_seconds < 0 ? 0 : (uint64_t)timeout_seconds * 1000;
grpc_event ev;
v->timer.data = (void *)TIMER_STARTED;
uv_timer_start(&v->timer, timer_run_cb, timeout_ms, 0);
ev = grpc_completion_queue_next(v->cq, gpr_inf_past(GPR_CLOCK_MONOTONIC),
NULL);
// Stop the loop if the timer goes off or we get a non-timeout event
while (((timer_state)v->timer.data != TIMER_TRIGGERED) &&
ev.type == GRPC_QUEUE_TIMEOUT) {
uv_run(uv_default_loop(), UV_RUN_ONCE);
ev = grpc_completion_queue_next(v->cq, gpr_inf_past(GPR_CLOCK_MONOTONIC),
NULL);
}
return ev;
}
#endif /* GRPC_UV */
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