1 /* 2 * Copyright (c) Crackerjack Project., 2007 3 * Copyright (c) 2011 Cyril Hrubis <chrubis (at) suse.cz> 4 * Copyright (c) 2017 Xiao Yang <yangx.jy (at) cn.fujitsu.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 14 * the GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 /* Porting from Crackerjack to LTP is done 22 * by Masatake YAMATO <yamato (at) redhat.com> 23 * 24 * Description: 25 * 1) io_setup(2) succeeds if both nr_events and ctxp are valid. 26 * 2) io_setup(2) fails and returns -EINVAL if ctxp is not initialized to 0. 27 * 3) io_setup(2) fails and returns -EINVAL if nr_events is invalid. 28 * 4) io_setup(2) fails and returns -EFAULT if ctxp is NULL. 29 * 5) io_setup(2) fails and returns -EAGAIN if nr_events exceeds the limit 30 * of available events. 31 */ 32 33 #include <errno.h> 34 #include <string.h> 35 #include <unistd.h> 36 #include "config.h" 37 #include "tst_test.h" 38 39 #ifdef HAVE_LIBAIO 40 #include <libaio.h> 41 42 static void verify_failure(unsigned int nr, io_context_t *ctx, int init_val, long exp_err) 43 { 44 if (ctx) 45 memset(ctx, init_val, sizeof(*ctx)); 46 47 TEST(io_setup(nr, ctx)); 48 if (TST_RET == 0) { 49 tst_res(TFAIL, "io_setup() passed unexpectedly"); 50 io_destroy(*ctx); 51 return; 52 } 53 54 if (TST_RET == -exp_err) { 55 tst_res(TPASS, "io_setup() failed as expected, returned -%s", 56 tst_strerrno(exp_err)); 57 } else { 58 tst_res(TFAIL, "io_setup() failed unexpectedly, returned -%s " 59 "expected -%s", tst_strerrno(-TST_RET), 60 tst_strerrno(exp_err)); 61 } 62 } 63 64 static void verify_success(unsigned int nr, io_context_t *ctx, int init_val) 65 { 66 memset(ctx, init_val, sizeof(*ctx)); 67 68 TEST(io_setup(nr, ctx)); 69 if (TST_RET != 0) { 70 tst_res(TFAIL, "io_setup() failed unexpectedly with %li (%s)", 71 TST_RET, tst_strerrno(-TST_RET)); 72 return; 73 } 74 75 tst_res(TPASS, "io_setup() passed as expected"); 76 io_destroy(*ctx); 77 } 78 79 static void verify_io_setup(void) 80 { 81 io_context_t ctx; 82 unsigned int aio_max = 0; 83 84 verify_success(1, &ctx, 0); 85 verify_failure(1, &ctx, 1, EINVAL); 86 verify_failure(-1, &ctx, 0, EINVAL); 87 verify_failure(1, NULL, 0, EFAULT); 88 89 if (!access("/proc/sys/fs/aio-max-nr", F_OK)) { 90 SAFE_FILE_SCANF("/proc/sys/fs/aio-max-nr", "%u", &aio_max); 91 verify_failure(aio_max + 1, &ctx, 0, EAGAIN); 92 } else { 93 tst_res(TCONF, "the aio-max-nr file did not exist"); 94 } 95 } 96 97 static struct tst_test test = { 98 .test_all = verify_io_setup, 99 }; 100 101 #else 102 TST_TEST_TCONF("test requires libaio and it's development packages"); 103 #endif 104
