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/*
*
* Copyright 2015 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 "src/core/lib/iomgr/port.h"
// This test only works with the generic timer implementation
#ifndef GRPC_CUSTOM_SOCKET
#include "src/core/lib/iomgr/iomgr_internal.h"
#include "src/core/lib/iomgr/timer.h"
#include <string.h>
#include <grpc/grpc.h>
#include <grpc/support/log.h>
#include "src/core/lib/debug/trace.h"
#include "test/core/util/test_config.h"
#include "test/core/util/tracer_util.h"
#define MAX_CB 30
extern grpc_core::TraceFlag grpc_timer_trace;
extern grpc_core::TraceFlag grpc_timer_check_trace;
static int cb_called[MAX_CB][2];
static const int64_t kMillisIn25Days = 2160000000;
static const int64_t kHoursIn25Days = 600;
static void cb(void* arg, grpc_error* error) {
cb_called[(intptr_t)arg][error == GRPC_ERROR_NONE]++;
}
static void add_test(void) {
int i;
grpc_timer timers[20];
grpc_core::ExecCtx exec_ctx;
gpr_log(GPR_INFO, "add_test");
grpc_timer_list_init();
grpc_core::testing::grpc_tracer_enable_flag(&grpc_timer_trace);
grpc_core::testing::grpc_tracer_enable_flag(&grpc_timer_check_trace);
memset(cb_called, 0, sizeof(cb_called));
grpc_millis start = grpc_core::ExecCtx::Get()->Now();
/* 10 ms timers. will expire in the current epoch */
for (i = 0; i < 10; i++) {
grpc_timer_init(
&timers[i], start + 10,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)i, grpc_schedule_on_exec_ctx));
}
/* 1010 ms timers. will expire in the next epoch */
for (i = 10; i < 20; i++) {
grpc_timer_init(
&timers[i], start + 1010,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)i, grpc_schedule_on_exec_ctx));
}
/* collect timers. Only the first batch should be ready. */
grpc_core::ExecCtx::Get()->TestOnlySetNow(start + 500);
GPR_ASSERT(grpc_timer_check(nullptr) == GRPC_TIMERS_FIRED);
grpc_core::ExecCtx::Get()->Flush();
for (i = 0; i < 20; i++) {
GPR_ASSERT(cb_called[i][1] == (i < 10));
GPR_ASSERT(cb_called[i][0] == 0);
}
grpc_core::ExecCtx::Get()->TestOnlySetNow(start + 600);
GPR_ASSERT(grpc_timer_check(nullptr) == GRPC_TIMERS_CHECKED_AND_EMPTY);
grpc_core::ExecCtx::Get()->Flush();
for (i = 0; i < 30; i++) {
GPR_ASSERT(cb_called[i][1] == (i < 10));
GPR_ASSERT(cb_called[i][0] == 0);
}
/* collect the rest of the timers */
grpc_core::ExecCtx::Get()->TestOnlySetNow(start + 1500);
GPR_ASSERT(grpc_timer_check(nullptr) == GRPC_TIMERS_FIRED);
grpc_core::ExecCtx::Get()->Flush();
for (i = 0; i < 30; i++) {
GPR_ASSERT(cb_called[i][1] == (i < 20));
GPR_ASSERT(cb_called[i][0] == 0);
}
grpc_core::ExecCtx::Get()->TestOnlySetNow(start + 1600);
GPR_ASSERT(grpc_timer_check(nullptr) == GRPC_TIMERS_CHECKED_AND_EMPTY);
for (i = 0; i < 30; i++) {
GPR_ASSERT(cb_called[i][1] == (i < 20));
GPR_ASSERT(cb_called[i][0] == 0);
}
grpc_timer_list_shutdown();
}
/* Cleaning up a list with pending timers. */
void destruction_test(void) {
grpc_timer timers[5];
grpc_core::ExecCtx exec_ctx;
gpr_log(GPR_INFO, "destruction_test");
grpc_core::ExecCtx::Get()->TestOnlySetNow(0);
grpc_timer_list_init();
grpc_core::testing::grpc_tracer_enable_flag(&grpc_timer_trace);
grpc_core::testing::grpc_tracer_enable_flag(&grpc_timer_check_trace);
memset(cb_called, 0, sizeof(cb_called));
grpc_timer_init(
&timers[0], 100,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)0, grpc_schedule_on_exec_ctx));
grpc_timer_init(
&timers[1], 3,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)1, grpc_schedule_on_exec_ctx));
grpc_timer_init(
&timers[2], 100,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)2, grpc_schedule_on_exec_ctx));
grpc_timer_init(
&timers[3], 3,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)3, grpc_schedule_on_exec_ctx));
grpc_timer_init(
&timers[4], 1,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)4, grpc_schedule_on_exec_ctx));
grpc_core::ExecCtx::Get()->TestOnlySetNow(2);
GPR_ASSERT(grpc_timer_check(nullptr) == GRPC_TIMERS_FIRED);
grpc_core::ExecCtx::Get()->Flush();
GPR_ASSERT(1 == cb_called[4][1]);
grpc_timer_cancel(&timers[0]);
grpc_timer_cancel(&timers[3]);
grpc_core::ExecCtx::Get()->Flush();
GPR_ASSERT(1 == cb_called[0][0]);
GPR_ASSERT(1 == cb_called[3][0]);
grpc_timer_list_shutdown();
grpc_core::ExecCtx::Get()->Flush();
GPR_ASSERT(1 == cb_called[1][0]);
GPR_ASSERT(1 == cb_called[2][0]);
}
/* Cleans up a list with pending timers that simulate long-running-services.
This test does the following:
1) Simulates grpc server start time to 25 days in the past (completed in
`main` using TestOnlyGlobalInit())
2) Creates 4 timers - one with a deadline 25 days in the future, one just
3 milliseconds in future, one way out in the future, and one using the
grpc_timespec_to_millis_round_up function to compute a deadline of 25
days in the future
3) Simulates 4 milliseconds of elapsed time by changing `now` (cached at
step 1) to `now+4`
4) Shuts down the timer list
https://github.com/grpc/grpc/issues/15904 */
void long_running_service_cleanup_test(void) {
grpc_timer timers[4];
grpc_core::ExecCtx exec_ctx;
gpr_log(GPR_INFO, "long_running_service_cleanup_test");
grpc_millis now = grpc_core::ExecCtx::Get()->Now();
GPR_ASSERT(now >= kMillisIn25Days);
grpc_timer_list_init();
grpc_core::testing::grpc_tracer_enable_flag(&grpc_timer_trace);
grpc_core::testing::grpc_tracer_enable_flag(&grpc_timer_check_trace);
memset(cb_called, 0, sizeof(cb_called));
grpc_timer_init(
&timers[0], now + kMillisIn25Days,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)0, grpc_schedule_on_exec_ctx));
grpc_timer_init(
&timers[1], now + 3,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)1, grpc_schedule_on_exec_ctx));
grpc_timer_init(
&timers[2], GRPC_MILLIS_INF_FUTURE - 1,
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)2, grpc_schedule_on_exec_ctx));
gpr_timespec deadline_spec = grpc_millis_to_timespec(
now + kMillisIn25Days, gpr_clock_type::GPR_CLOCK_MONOTONIC);
/* grpc_timespec_to_millis_round_up is how users usually compute a millisecond
input value into grpc_timer_init, so we mimic that behavior here */
grpc_timer_init(
&timers[3], grpc_timespec_to_millis_round_up(deadline_spec),
GRPC_CLOSURE_CREATE(cb, (void*)(intptr_t)3, grpc_schedule_on_exec_ctx));
grpc_core::ExecCtx::Get()->TestOnlySetNow(now + 4);
GPR_ASSERT(grpc_timer_check(nullptr) == GRPC_TIMERS_FIRED);
grpc_core::ExecCtx::Get()->Flush();
GPR_ASSERT(0 == cb_called[0][0]); // Timer 0 not called
GPR_ASSERT(0 == cb_called[0][1]);
GPR_ASSERT(0 == cb_called[1][0]);
GPR_ASSERT(1 == cb_called[1][1]); // Timer 1 fired
GPR_ASSERT(0 == cb_called[2][0]); // Timer 2 not called
GPR_ASSERT(0 == cb_called[2][1]);
GPR_ASSERT(0 == cb_called[3][0]); // Timer 3 not called
GPR_ASSERT(0 == cb_called[3][1]);
grpc_timer_list_shutdown();
grpc_core::ExecCtx::Get()->Flush();
/* Timers 0, 2, and 3 were fired with an error during cleanup */
GPR_ASSERT(1 == cb_called[0][0]);
GPR_ASSERT(0 == cb_called[1][0]);
GPR_ASSERT(1 == cb_called[2][0]);
GPR_ASSERT(1 == cb_called[3][0]);
}
int main(int argc, char** argv) {
/* Tests with default g_start_time */
{
grpc_test_init(argc, argv);
grpc_core::ExecCtx::GlobalInit();
grpc_core::ExecCtx exec_ctx;
grpc_determine_iomgr_platform();
grpc_iomgr_platform_init();
gpr_set_log_verbosity(GPR_LOG_SEVERITY_DEBUG);
add_test();
destruction_test();
grpc_iomgr_platform_shutdown();
}
grpc_core::ExecCtx::GlobalShutdown();
/* Begin long running service tests */
{
grpc_test_init(argc, argv);
/* Set g_start_time back 25 days. */
/* We set g_start_time here in case there are any initialization
dependencies that use g_start_time. */
gpr_timespec new_start =
gpr_time_sub(gpr_now(gpr_clock_type::GPR_CLOCK_MONOTONIC),
gpr_time_from_hours(kHoursIn25Days,
gpr_clock_type::GPR_CLOCK_MONOTONIC));
grpc_core::ExecCtx::TestOnlyGlobalInit(new_start);
grpc_core::ExecCtx exec_ctx;
grpc_determine_iomgr_platform();
grpc_iomgr_platform_init();
gpr_set_log_verbosity(GPR_LOG_SEVERITY_DEBUG);
long_running_service_cleanup_test();
add_test();
destruction_test();
grpc_iomgr_platform_shutdown();
}
grpc_core::ExecCtx::GlobalShutdown();
return 0;
}
#else /* GRPC_CUSTOM_SOCKET */
int main(int argc, char** argv) { return 1; }
#endif /* GRPC_CUSTOM_SOCKET */
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