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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* Test gRPC event manager with a simple TCP upload server and client. */
#include "src/core/iomgr/alarm.h"
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/sync.h>
#include <grpc/support/time.h>
#include "test/core/util/test_config.h"
#define SUCCESS_NOT_SET (-1)
/* Dummy gRPC callback */
void no_op_cb(void *arg, int success) {}
typedef struct {
gpr_cv cv;
gpr_mu mu;
grpc_iomgr_closure *followup_closure;
int counter;
int done_success_ctr;
int done_cancel_ctr;
int done;
gpr_event fcb_arg;
int success;
} alarm_arg;
static void followup_cb(void *arg, int success) {
gpr_event_set((gpr_event *)arg, arg);
}
/* Called when an alarm expires. */
static void alarm_cb(void *arg /* alarm_arg */, int success) {
alarm_arg *a = arg;
gpr_mu_lock(&a->mu);
if (success) {
a->counter++;
a->done_success_ctr++;
} else {
a->done_cancel_ctr++;
}
a->done = 1;
a->success = success;
gpr_cv_signal(&a->cv);
gpr_mu_unlock(&a->mu);
grpc_iomgr_closure_init(a->followup_closure, followup_cb, &a->fcb_arg);
grpc_iomgr_add_callback(a->followup_closure);
}
/* Test grpc_alarm add and cancel. */
static void test_grpc_alarm(void) {
grpc_alarm alarm;
grpc_alarm alarm_to_cancel;
/* Timeout on the alarm cond. var, so make big enough to absorb time
deviations. Otherwise, operations after wait will not be properly ordered
*/
gpr_timespec alarm_deadline;
gpr_timespec followup_deadline;
alarm_arg arg;
alarm_arg arg2;
void *fdone;
grpc_iomgr_init();
arg.counter = 0;
arg.success = SUCCESS_NOT_SET;
arg.done_success_ctr = 0;
arg.done_cancel_ctr = 0;
arg.done = 0;
gpr_mu_init(&arg.mu);
gpr_cv_init(&arg.cv);
arg.followup_closure = gpr_malloc(sizeof(grpc_iomgr_closure));
gpr_event_init(&arg.fcb_arg);
grpc_alarm_init(&alarm, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(100), alarm_cb, &arg,
gpr_now(GPR_CLOCK_REALTIME));
alarm_deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1);
gpr_mu_lock(&arg.mu);
while (arg.done == 0) {
if (gpr_cv_wait(&arg.cv, &arg.mu, alarm_deadline)) {
gpr_log(GPR_ERROR, "alarm deadline exceeded");
break;
}
}
gpr_mu_unlock(&arg.mu);
followup_deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5);
fdone = gpr_event_wait(&arg.fcb_arg, followup_deadline);
if (arg.counter != 1) {
gpr_log(GPR_ERROR, "Alarm callback not called");
GPR_ASSERT(0);
} else if (arg.done_success_ctr != 1) {
gpr_log(GPR_ERROR, "Alarm done callback not called with success");
GPR_ASSERT(0);
} else if (arg.done_cancel_ctr != 0) {
gpr_log(GPR_ERROR, "Alarm done callback called with cancel");
GPR_ASSERT(0);
} else if (arg.success == SUCCESS_NOT_SET) {
gpr_log(GPR_ERROR, "Alarm callback without status");
GPR_ASSERT(0);
} else {
gpr_log(GPR_INFO, "Alarm callback called successfully");
}
if (fdone != (void *)&arg.fcb_arg) {
gpr_log(GPR_ERROR, "Followup callback #1 not invoked properly %p %p", fdone,
&arg.fcb_arg);
GPR_ASSERT(0);
}
gpr_cv_destroy(&arg.cv);
gpr_mu_destroy(&arg.mu);
gpr_free(arg.followup_closure);
arg2.counter = 0;
arg2.success = SUCCESS_NOT_SET;
arg2.done_success_ctr = 0;
arg2.done_cancel_ctr = 0;
arg2.done = 0;
gpr_mu_init(&arg2.mu);
gpr_cv_init(&arg2.cv);
arg2.followup_closure = gpr_malloc(sizeof(grpc_iomgr_closure));
gpr_event_init(&arg2.fcb_arg);
grpc_alarm_init(&alarm_to_cancel, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(100),
alarm_cb, &arg2, gpr_now(GPR_CLOCK_REALTIME));
grpc_alarm_cancel(&alarm_to_cancel);
alarm_deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1);
gpr_mu_lock(&arg2.mu);
while (arg2.done == 0) {
gpr_cv_wait(&arg2.cv, &arg2.mu, alarm_deadline);
}
gpr_mu_unlock(&arg2.mu);
gpr_log(GPR_INFO, "alarm done = %d", arg2.done);
followup_deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5);
fdone = gpr_event_wait(&arg2.fcb_arg, followup_deadline);
if (arg2.counter != arg2.done_success_ctr) {
gpr_log(GPR_ERROR, "Alarm callback called but didn't lead to done success");
GPR_ASSERT(0);
} else if (arg2.done_success_ctr && arg2.done_cancel_ctr) {
gpr_log(GPR_ERROR, "Alarm done callback called with success and cancel");
GPR_ASSERT(0);
} else if (arg2.done_cancel_ctr + arg2.done_success_ctr != 1) {
gpr_log(GPR_ERROR, "Alarm done callback called incorrect number of times");
GPR_ASSERT(0);
} else if (arg2.success == SUCCESS_NOT_SET) {
gpr_log(GPR_ERROR, "Alarm callback without status");
GPR_ASSERT(0);
} else if (arg2.done_success_ctr) {
gpr_log(GPR_INFO, "Alarm callback executed before cancel");
gpr_log(GPR_INFO, "Current value of triggered is %d\n",
alarm_to_cancel.triggered);
} else if (arg2.done_cancel_ctr) {
gpr_log(GPR_INFO, "Alarm callback canceled");
gpr_log(GPR_INFO, "Current value of triggered is %d\n",
alarm_to_cancel.triggered);
} else {
gpr_log(GPR_ERROR, "Alarm cancel test should not be here");
GPR_ASSERT(0);
}
if (fdone != (void *)&arg2.fcb_arg) {
gpr_log(GPR_ERROR, "Followup callback #2 not invoked properly %p %p", fdone,
&arg2.fcb_arg);
GPR_ASSERT(0);
}
gpr_cv_destroy(&arg2.cv);
gpr_mu_destroy(&arg2.mu);
gpr_free(arg2.followup_closure);
grpc_iomgr_shutdown();
}
int main(int argc, char **argv) {
grpc_test_init(argc, argv);
test_grpc_alarm();
return 0;
}
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