shm_test_014.cpp

/* 
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. Neither the name of the copyright holder 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 HOLDER 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;
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 */
#include "it_test_shm.h"
#include "sys/types.h"

#define SHMNAME "shm_ram"

static int testcase(void)
{
    int shmfd;
    int ret;
    int count;
    int pageSize = getpagesize();
    char *writebuf = NULL;
    char *readbuf = NULL;

    errno = 0;
    shmfd = shm_open("test_2", O_RDONLY, 00664);
    ICUNIT_ASSERT_EQUAL(shmfd, -1, shmfd);
    ICUNIT_ASSERT_EQUAL(errno, 2, errno);
    
    shmfd = shm_open("test_2", O_RDONLY | O_CREAT, 00664);
    ICUNIT_ASSERT_NOT_EQUAL(shmfd, -1, shmfd);
    writebuf = (char*)malloc(pageSize);
    ICUNIT_ASSERT_NOT_EQUAL(writebuf, NULL, writebuf);
    readbuf = (char*)malloc(pageSize);
    ICUNIT_ASSERT_NOT_EQUAL(readbuf, NULL, readbuf);
    memset_s(writebuf, pageSize, 0xf, pageSize);

    errno = 0;
     
    count = write(shmfd, writebuf, pageSize);
    ICUNIT_ASSERT_EQUAL(count, -1, count);
    ICUNIT_ASSERT_EQUAL(errno, EACCES, errno);
    close(shmfd);
    ret = shm_unlink("test_2");
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
     
    shmfd = shm_open("test_3", O_WRONLY | O_CREAT, 00664);
    ICUNIT_ASSERT_NOT_EQUAL(shmfd, -1, shmfd);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
    errno = 0;
    count = write(shmfd, writebuf, pageSize);
    ICUNIT_ASSERT_EQUAL(count, pageSize, count);
    
    errno = 0;
    count = read(shmfd, readbuf, pageSize);
    ICUNIT_ASSERT_EQUAL(count, -1, count);
    ICUNIT_ASSERT_EQUAL(errno, EACCES, errno);
    free(writebuf);
    free(readbuf);
    close(shmfd);

    ret = shm_unlink("test_3");
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    return 0;
}

void it_test_shm_014(void)
{
    TEST_ADD_CASE("IT_MEM_SHM_014", testcase, TEST_LOS, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
}