diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/tst-setgetname.c')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/tst-setgetname.c | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/tst-setgetname.c b/nptl/sysdeps/unix/sysv/linux/tst-setgetname.c deleted file mode 100644 index f5693e26c4..0000000000 --- a/nptl/sysdeps/unix/sysv/linux/tst-setgetname.c +++ /dev/null @@ -1,315 +0,0 @@ -/* Test pthread_setname_np and pthread_getname_np. - Copyright (C) 2013-2014 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, see <http://www.gnu.org/licenses/>. */ -#include <stdio.h> -#include <stdlib.h> -#include <pthread.h> -#include <string.h> -#include <sys/syscall.h> -#include <unistd.h> -#include <fcntl.h> -#include <errno.h> -#include <kernel-features.h> - -/* New name of process. */ -#define NEW_NAME "setname" - -/* Name of process which is one byte too big - e.g. 17 bytes including null-terminator */ -#define BIG_NAME "....V....X....XV" - -/* Longest name of a process - e.g. 16 bytes including null-terminator. */ -#define LONGEST_NAME "....V....X....X" - -/* One less than longest name with unique - characters to detect modification. */ -#define CANARY_NAME "abcdefghijklmn" - -/* On Linux the maximum length of the name of a task *including* the null - terminator. */ -#define TASK_COMM_LEN 16 - -long -gettid (void) -{ - return syscall(__NR_gettid); -} - -/* On Linux we can read this task's name from /proc. */ -int -get_self_comm (long tid, char *buf, size_t len) -{ - int res = 0; -#define FMT "/proc/self/task/%lu/comm" - char fname[sizeof (FMT) + 8]; - sprintf (fname, FMT, (unsigned long) tid); - - int fd = open (fname, O_RDONLY); - if (fd == -1) - return errno; - - ssize_t n = read (fd, (void *) buf, len); - if (n < 0) - res = errno; - else - { - if (buf[n - 1] == '\n') - buf[n - 1] = '\0'; - else if (n == len) - res = ERANGE; - else - buf[n] = '\0'; - } - - close (fd); - return res; -} - -int -do_test (int argc, char **argv) -{ - pthread_t self; - int res; - int ret = 0; - char name[TASK_COMM_LEN]; - char name_check[TASK_COMM_LEN]; - - memset (name, '\0', TASK_COMM_LEN); - memset (name_check, '\0', TASK_COMM_LEN); - - /* Test 1: Get the name of the task via pthread_getname_np and /proc - and verify that they both match. */ - self = pthread_self (); - res = pthread_getname_np (self, name, TASK_COMM_LEN); - - if (res == 0) - { - res = get_self_comm (gettid (), name_check, TASK_COMM_LEN); - -#if !__ASSUME_PROC_PID_TASK_COMM - /* On this first test we look for ENOENT to be returned from - get_self_comm to indicate that the kernel is older than - 2.6.33 and doesn't contain comm within the proc structure. - In that case we skip the entire test. */ - if (res == ENOENT) - { - printf ("SKIP: The kernel does not have /proc/self/task/%%lu/comm.\n"); - return 0; - } -#endif - - if (res == 0) - { - if (strncmp (name, name_check, strlen (BIG_NAME)) == 0) - printf ("PASS: Test 1 - pthread_getname_np and /proc agree.\n"); - else - { - printf ("FAIL: Test 1 - pthread_getname_np and /proc differ" - " i.e. %s != %s\n", name, name_check); - ret++; - } - } - else - { - printf ("FAIL: Test 1 - unable read task name via proc.\n"); - ret++; - } - } - else - { - printf ("FAIL: Test 1 - pthread_getname_np failed with error %d\n", res); - ret++; - } - - /* Test 2: Test setting the name and then independently verify it - was set. */ - res = pthread_setname_np (self, NEW_NAME); - - if (res == 0) - { - res = get_self_comm (gettid (), name_check, TASK_COMM_LEN); - if (res == 0) - { - if (strncmp (NEW_NAME, name_check, strlen (BIG_NAME)) == 0) - printf ("PASS: Test 2 - Value used in pthread_setname_np and" - " /proc agree.\n"); - else - { - printf ("FAIL: Test 2 - Value used in pthread_setname_np" - " and /proc differ i.e. %s != %s\n", - NEW_NAME, name_check); - ret++; - } - } - else - { - printf ("FAIL: Test 2 - unable to read task name via proc.\n"); - ret++; - } - } - else - { - printf ("FAIL: Test 2 - pthread_setname_np failed with error %d\n", res); - ret++; - } - - /* Test 3: Test setting a name that is one-byte too big. */ - res = pthread_getname_np (self, name, TASK_COMM_LEN); - - if (res == 0) - { - res = pthread_setname_np (self, BIG_NAME); - if (res != 0) - { - if (res == ERANGE) - { - printf ("PASS: Test 3 - pthread_setname_np returned ERANGE" - " for a process name that was too long.\n"); - - /* Verify the old name didn't change. */ - res = get_self_comm (gettid (), name_check, TASK_COMM_LEN); - if (res == 0) - { - if (strncmp (name, name_check, strlen (BIG_NAME)) == 0) - printf ("PASS: Test 3 - Original name unchanged after" - " pthread_setname_np returned ERANGE.\n"); - else - { - printf ("FAIL: Test 3 - Original name changed after" - " pthread_setname_np returned ERANGE" - " i.e. %s != %s\n", - name, name_check); - ret++; - } - } - else - { - printf ("FAIL: Test 3 - unable to read task name.\n"); - ret++; - } - } - else - { - printf ("FAIL: Test 3 - Wrong error returned" - " i.e. ERANGE != %d\n", res); - ret++; - } - } - else - { - printf ("FAIL: Test 3 - Too-long name accepted by" - " pthread_setname_np.\n"); - ret++; - } - } - else - { - printf ("FAIL: Test 3 - Unable to get original name.\n"); - ret++; - } - - /* Test 4: Verify that setting the longest name works. */ - res = pthread_setname_np (self, LONGEST_NAME); - - if (res == 0) - { - res = get_self_comm (gettid (), name_check, TASK_COMM_LEN); - if (res == 0) - { - if (strncmp (LONGEST_NAME, name_check, strlen (BIG_NAME)) == 0) - printf ("PASS: Test 4 - Longest name set via pthread_setname_np" - " agrees with /proc.\n"); - else - { - printf ("FAIL: Test 4 - Value used in pthread_setname_np and /proc" - " differ i.e. %s != %s\n", LONGEST_NAME, name_check); - ret++; - } - } - else - { - printf ("FAIL: Test 4 - unable to read task name via proc.\n"); - ret++; - } - } - else - { - printf ("FAIL: Test 4 - pthread_setname_np failed with error %d\n", res); - ret++; - } - - /* Test 5: Verify that getting a long name into a small buffer fails. */ - strncpy (name, CANARY_NAME, strlen (CANARY_NAME) + 1); - - /* Claim the buffer length is strlen (LONGEST_NAME). This is one character - too small to hold LONGEST_NAME *and* the null terminator. We should get - back ERANGE and name should be unmodified. */ - res = pthread_getname_np (self, name, strlen (LONGEST_NAME)); - - if (res != 0) - { - if (res == ERANGE) - { - if (strncmp (CANARY_NAME, name, strlen (BIG_NAME)) == 0) - { - printf ("PASS: Test 5 - ERANGE and buffer unmodified.\n"); - } - else - { - printf ("FAIL: Test 5 - Original buffer modified.\n"); - ret++; - } - } - else - { - printf ("FAIL: Test 5 - Did not return ERANGE for small buffer.\n"); - ret++; - } - } - else - { - printf ("FAIL: Test 5 - Returned name longer than buffer.\n"); - ret++; - } - - /* Test 6: Lastly make sure we can read back the longest name. */ - res = pthread_getname_np (self, name, strlen (LONGEST_NAME) + 1); - - if (res == 0) - { - if (strncmp (LONGEST_NAME, name, strlen (BIG_NAME)) == 0) - { - printf ("PASS: Test 6 - Read back longest name correctly.\n"); - } - else - { - printf ("FAIL: Test 6 - Read \"%s\" instead of longest name.\n", - name); - ret++; - } - } - else - { - printf ("FAIL: Test 6 - pthread_getname_np failed with error %d\n", res); - ret++; - } - - return ret; -} - -#include <test-skeleton.c> |