93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) Crackerjack Project., 2007
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* Copyright (c) 2011 Cyril Hrubis <chrubis@suse.cz>
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* Copyright (c) 2017 Xiao Yang <yangx.jy@cn.fujitsu.com>
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*/
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/* Porting from Crackerjack to LTP is done
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* by Masatake YAMATO <yamato@redhat.com>
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*
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* Description:
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* 1) io_setup(2) succeeds if both nr_events and ctxp are valid.
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* 2) io_setup(2) fails and returns -EINVAL if ctxp is not initialized to 0.
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* 3) io_setup(2) fails and returns -EINVAL if nr_events is invalid.
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* 4) io_setup(2) fails and returns -EFAULT if ctxp is NULL.
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* 5) io_setup(2) fails and returns -EAGAIN if nr_events exceeds the limit
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* of available events.
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*/
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include "config.h"
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#include "tst_test.h"
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#ifdef HAVE_LIBAIO
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#include <libaio.h>
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static void verify_failure(unsigned int nr, io_context_t *ctx, int init_val, long exp_err)
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{
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if (ctx)
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memset(ctx, init_val, sizeof(*ctx));
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TEST(io_setup(nr, ctx));
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if (TST_RET == 0) {
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tst_res(TFAIL, "io_setup() passed unexpectedly");
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io_destroy(*ctx);
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return;
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}
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if (TST_RET == -exp_err) {
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tst_res(TPASS, "io_setup() failed as expected, returned -%s",
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tst_strerrno(exp_err));
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} else {
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tst_res(TFAIL, "io_setup() failed unexpectedly, returned -%s "
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"expected -%s", tst_strerrno(-TST_RET),
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tst_strerrno(exp_err));
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}
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}
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static void verify_success(unsigned int nr, io_context_t *ctx, int init_val)
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{
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memset(ctx, init_val, sizeof(*ctx));
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TEST(io_setup(nr, ctx));
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if (TST_RET == -ENOSYS)
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tst_brk(TCONF | TRERRNO, "io_setup(): AIO not supported by kernel");
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if (TST_RET != 0) {
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tst_res(TFAIL, "io_setup() failed unexpectedly with %li (%s)",
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TST_RET, tst_strerrno(-TST_RET));
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return;
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}
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tst_res(TPASS, "io_setup() passed as expected");
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io_destroy(*ctx);
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}
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static void verify_io_setup(void)
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{
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io_context_t ctx;
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unsigned int aio_max = 0;
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verify_success(1, &ctx, 0);
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verify_failure(1, &ctx, 1, EINVAL);
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verify_failure(-1, &ctx, 0, EINVAL);
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verify_failure(1, NULL, 0, EFAULT);
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if (!access("/proc/sys/fs/aio-max-nr", F_OK)) {
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SAFE_FILE_SCANF("/proc/sys/fs/aio-max-nr", "%u", &aio_max);
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verify_failure(aio_max + 1, &ctx, 0, EAGAIN);
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} else {
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tst_res(TCONF, "the aio-max-nr file did not exist");
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}
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}
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static struct tst_test test = {
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.test_all = verify_io_setup,
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};
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#else
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TST_TEST_TCONF("test requires libaio and it's development packages");
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#endif
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