1 /*
2 *
3 * Copyright 2016 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 #include <grpc/support/port_platform.h>
20
21 #ifdef GRPC_UV
22
23 #include <uv.h>
24
25 #include <grpc/support/alloc.h>
26 #include <grpc/support/log.h>
27
28 #include "test/core/end2end/cq_verifier_internal.h"
29
30 typedef enum timer_state {
31 TIMER_STARTED,
32 TIMER_TRIGGERED,
33 TIMER_CLOSED
34 } timer_state;
35
36 /* the verifier itself */
37 struct cq_verifier {
38 /* bound completion queue */
39 grpc_completion_queue* cq;
40 /* start of expectation list */
41 expectation* first_expectation;
42 uv_timer_t timer;
43 };
44
cq_verifier_create(grpc_completion_queue * cq)45 cq_verifier* cq_verifier_create(grpc_completion_queue* cq) {
46 cq_verifier* v = static_cast<cq_verifier*>(gpr_malloc(sizeof(cq_verifier)));
47 v->cq = cq;
48 v->first_expectation = NULL;
49 uv_timer_init(uv_default_loop(), &v->timer);
50 v->timer.data = (void*)TIMER_STARTED;
51 return v;
52 }
53
timer_close_cb(uv_handle_t * handle)54 static void timer_close_cb(uv_handle_t* handle) {
55 handle->data = (void*)TIMER_CLOSED;
56 }
57
cq_verifier_destroy(cq_verifier * v)58 void cq_verifier_destroy(cq_verifier* v) {
59 cq_verify(v);
60 uv_close((uv_handle_t*)&v->timer, timer_close_cb);
61 while (static_cast<timer_state>(v->timer.data) != TIMER_CLOSED) {
62 uv_run(uv_default_loop(), UV_RUN_NOWAIT);
63 }
64 gpr_free(v);
65 }
66
cq_verifier_get_first_expectation(cq_verifier * v)67 expectation* cq_verifier_get_first_expectation(cq_verifier* v) {
68 return v->first_expectation;
69 }
70
cq_verifier_set_first_expectation(cq_verifier * v,expectation * e)71 void cq_verifier_set_first_expectation(cq_verifier* v, expectation* e) {
72 v->first_expectation = e;
73 }
74
timer_run_cb(uv_timer_t * timer)75 static void timer_run_cb(uv_timer_t* timer) {
76 timer->data = (void*)TIMER_TRIGGERED;
77 }
78
cq_verifier_next_event(cq_verifier * v,int timeout_seconds)79 grpc_event cq_verifier_next_event(cq_verifier* v, int timeout_seconds) {
80 uint64_t timeout_ms =
81 timeout_seconds < 0 ? 0 : (uint64_t)timeout_seconds * 1000;
82 grpc_event ev;
83 v->timer.data = (void*)TIMER_STARTED;
84 uv_timer_start(&v->timer, timer_run_cb, timeout_ms, 0);
85 ev = grpc_completion_queue_next(v->cq, gpr_inf_past(GPR_CLOCK_MONOTONIC),
86 NULL);
87 // Stop the loop if the timer goes off or we get a non-timeout event
88 while ((static_cast<timer_state>(v->timer.data) != TIMER_TRIGGERED) &&
89 ev.type == GRPC_QUEUE_TIMEOUT) {
90 uv_run(uv_default_loop(), UV_RUN_ONCE);
91 ev = grpc_completion_queue_next(v->cq, gpr_inf_past(GPR_CLOCK_MONOTONIC),
92 NULL);
93 }
94 return ev;
95 }
96
97 #endif /* GRPC_UV */
98