Exemplos de update_shm_size em C++ (Cpp)

Exemplo n.º 1

Arquivo: hugeshmctl02.c Projeto: MohdVara/ltp

void setup(void)
{
	long hpage_size;

	tst_require_root(NULL);
	tst_sig(NOFORK, DEF_HANDLER, cleanup);
	tst_tmpdir();

	orig_hugepages = get_sys_tune("nr_hugepages");
	set_sys_tune("nr_hugepages", hugepages, 1);
	hpage_size = read_meminfo("Hugepagesize:") * 1024;

	shm_size = hpage_size * hugepages / 2;
	update_shm_size(&shm_size);
	shmkey = getipckey();

	/* create a shared memory segment without read or write permissions */
	shm_id_1 = shmget(shmkey, shm_size, SHM_HUGETLB | IPC_CREAT | IPC_EXCL);
	if (shm_id_1 == -1)
		tst_brkm(TBROK | TERRNO, cleanup, "shmget #1");

	/* create a shared memory segment with read and write permissions */
	shm_id_2 = shmget(shmkey + 1, shm_size,
			  SHM_HUGETLB | IPC_CREAT | IPC_EXCL | SHM_RW);
	if (shm_id_2 == -1)
		tst_brkm(TBROK | TERRNO, cleanup, "shmget #2");

	TEST_PAUSE;
}

Exemplo n.º 2

Arquivo: hugeshmctl03.c Projeto: CSRedRat/ltp

void setup(void)
{
	long hpage_size;

	tst_require_root();
	check_hugepage();
	tst_sig(FORK, DEF_HANDLER, cleanup);
	tst_tmpdir();

	orig_hugepages = get_sys_tune("nr_hugepages");
	set_sys_tune("nr_hugepages", hugepages, 1);
	hpage_size = read_meminfo("Hugepagesize:") * 1024;

	shm_size = hpage_size * hugepages / 2;
	update_shm_size(&shm_size);
	shmkey = getipckey(cleanup);
	shm_id_1 = shmget(shmkey, shm_size,
			  SHM_HUGETLB | IPC_CREAT | IPC_EXCL | SHM_RW);
	if (shm_id_1 == -1)
		tst_brkm(TBROK | TERRNO, cleanup, "shmget");

	/* get the userid for a non root user */
	ltp_uid = getuserid(cleanup, ltp_user);

	TEST_PAUSE;
}

Exemplo n.º 3

Arquivo: hugeshmdt01.c Projeto: AbhiramiP/ltp

void setup(void)
{
	long hpage_size;

	tst_require_root(NULL);
	tst_sig(NOFORK, sighandler, cleanup);
	tst_tmpdir();

	orig_hugepages = get_sys_tune("nr_hugepages");
	set_sys_tune("nr_hugepages", hugepages, 1);
	hpage_size = read_meminfo("Hugepagesize:") * 1024;

	shm_size = hpage_size * hugepages / 2;
	update_shm_size(&shm_size);
	shmkey = getipckey();

	/* create a shared memory resource with read and write permissions */
	shm_id_1 = shmget(shmkey, shm_size,
			  SHM_HUGETLB | SHM_RW | IPC_CREAT | IPC_EXCL);
	if (shm_id_1 == -1)
		tst_brkm(TBROK | TERRNO, cleanup, "shmget");

	/* attach the shared memory segment */
	shared = shmat(shm_id_1, 0, 0);
	if (shared == (void *)-1)
		tst_brkm(TBROK | TERRNO, cleanup, "shmat #1");

	/* give a value to the shared memory integer */
	*shared = 4;

	TEST_PAUSE;
}

Exemplo n.º 4

Arquivo: hugeshmget01.c Projeto: Mellanox/arc_ltp

void setup(void)
{
	long hpage_size;

	tst_require_root(NULL);
	tst_sig(NOFORK, DEF_HANDLER, cleanup);
	tst_tmpdir();

	orig_hugepages = get_sys_tune("nr_hugepages");
	set_sys_tune("nr_hugepages", hugepages, 1);
	hpage_size = read_meminfo("Hugepagesize:") * 1024;

	shm_size = hpage_size * hugepages / 2;
	update_shm_size(&shm_size);
	shmkey = getipckey();

	TEST_PAUSE;
}

Exemplo n.º 5

Arquivo: hugeshmctl01.c Projeto: CSRedRat/ltp

void setup(void)
{
	long hpage_size;

	tst_require_root();
	check_hugepage();
	tst_sig(FORK, sighandler, cleanup);
	tst_tmpdir();

	orig_hugepages = get_sys_tune("nr_hugepages");
	set_sys_tune("nr_hugepages", hugepages, 1);
	hpage_size = read_meminfo("Hugepagesize:") * 1024;

	shm_size = hpage_size * hugepages / 2;
	update_shm_size(&shm_size);
	shmkey = getipckey(cleanup);

	TEST_PAUSE;
}

Exemplo n.º 6

Arquivo: hugeshmget02.c Projeto: kraj/ltp

void setup(void)
{
	long hpage_size;

	save_nr_hugepages();
	if (nr_opt)
		hugepages = SAFE_STRTOL(nr_opt, 0, LONG_MAX);

	set_sys_tune("nr_hugepages", hugepages, 1);
	hpage_size = SAFE_READ_MEMINFO("Hugepagesize:") * 1024;

	shm_size = hpage_size * hugepages / 2;
	update_shm_size(&shm_size);

	shmkey = getipckey();
	shmkey2 = shmkey + 1;
	shm_id_1 = shmget(shmkey, shm_size,
			  SHM_HUGETLB | IPC_CREAT | IPC_EXCL | SHM_RW);
	if (shm_id_1 == -1)
		tst_brk(TBROK | TERRNO, "shmget #setup");
}

Exemplo n.º 7

Arquivo: hugeshmat01.c Projeto: foss-for-synopsys-dwc-arc-processors/ltp

void setup(void)
{
	long hpage_size;

	tst_require_root();
	tst_sig(NOFORK, DEF_HANDLER, cleanup);
	tst_tmpdir();

	orig_hugepages = get_sys_tune("nr_hugepages");
	set_sys_tune("nr_hugepages", hugepages, 1);
	hpage_size = read_meminfo("Hugepagesize:") * 1024;

	shm_size = hpage_size * hugepages / 2;
	update_shm_size(&shm_size);
	shmkey = getipckey();
	shm_id_1 = shmget(shmkey++, shm_size,
			  SHM_HUGETLB | SHM_RW | IPC_CREAT | IPC_EXCL);
	if (shm_id_1 == -1)
		tst_brkm(TBROK | TERRNO, cleanup, "shmget");

	TEST_PAUSE;
}