40bae4fc89
SysV IPC has been compiled out of all our kernels. Change-Id: I1294459697ed7dff4f21af5c7b04c8b3d3649329
100 lines
3.1 KiB
C++
100 lines
3.1 KiB
C++
/*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <gtest/gtest.h>
|
|
|
|
#include <errno.h>
|
|
#include <sys/sem.h>
|
|
|
|
#include "TemporaryFile.h"
|
|
|
|
TEST(sys_sem, smoke) {
|
|
if (semctl(-1, 0, IPC_RMID) == -1 && errno == ENOSYS) {
|
|
GTEST_LOG_(INFO) << "no <sys/sem.h> support in this kernel\n";
|
|
return;
|
|
}
|
|
|
|
// Create a semaphore.
|
|
TemporaryDir dir;
|
|
key_t key = ftok(dir.dirname, 1);
|
|
int id = semget(key, 1, IPC_CREAT|0666);
|
|
ASSERT_NE(id, -1);
|
|
|
|
// Check semaphore info.
|
|
semid_ds ds;
|
|
memset(&ds, 0, sizeof(ds));
|
|
ASSERT_EQ(0, semctl(id, 0, IPC_STAT, &ds));
|
|
ASSERT_EQ(1U, ds.sem_nsems);
|
|
|
|
ASSERT_EQ(0, semctl(id, 0, GETVAL));
|
|
|
|
// Increment.
|
|
sembuf ops[] = {{ .sem_num = 0, .sem_op = 1, .sem_flg = 0 }};
|
|
ASSERT_EQ(0, semop(id, ops, 1));
|
|
ASSERT_EQ(1, semctl(id, 0, GETVAL));
|
|
|
|
// Test timeouts.
|
|
timespec ts = { .tv_sec = 0, .tv_nsec = 100 };
|
|
ops[0] = { .sem_num = 0, .sem_op = 0, .sem_flg = 0 };
|
|
errno = 0;
|
|
ASSERT_EQ(-1, semtimedop(id, ops, 1, &ts));
|
|
ASSERT_EQ(EAGAIN, errno);
|
|
ASSERT_EQ(1, semctl(id, 0, GETVAL));
|
|
|
|
// Decrement.
|
|
ops[0] = { .sem_num = 0, .sem_op = -1, .sem_flg = 0 };
|
|
ASSERT_EQ(0, semop(id, ops, 1));
|
|
ASSERT_EQ(0, semctl(id, 0, GETVAL));
|
|
|
|
// Destroy the semaphore.
|
|
ASSERT_EQ(0, semctl(id, 0, IPC_RMID));
|
|
}
|
|
|
|
TEST(sys_sem, semget_failure) {
|
|
errno = 0;
|
|
ASSERT_EQ(-1, semget(-1, -1, 0));
|
|
ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
|
|
}
|
|
|
|
TEST(sys_sem, semctl_failure) {
|
|
errno = 0;
|
|
ASSERT_EQ(-1, semctl(-1, 0, IPC_RMID));
|
|
ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
|
|
}
|
|
|
|
TEST(sys_sem, semop_failure) {
|
|
errno = 0;
|
|
ASSERT_EQ(-1, semop(-1, nullptr, 0));
|
|
ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
|
|
}
|
|
|
|
TEST(sys_sem, semtimedop_failure) {
|
|
errno = 0;
|
|
ASSERT_EQ(-1, semtimedop(-1, nullptr, 0, nullptr));
|
|
ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
|
|
}
|