101 lines
2.2 KiB
C
101 lines
2.2 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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* Ported from Crackerjack to LTP by Masatake YAMATO <yamato@redhat.com>
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* Copyright (c) 2011-2017 Cyril Hrubis <chrubis@suse.cz>
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* Copyright (c) 2021 Xie Ziyao <xieziyao@huawei.com>
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*/
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/*\
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* [Description]
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*
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* Test io_submit invoked via syscall(2):
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*
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* 1. io_submit() returns the number of iocbs submitted.
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* 2. io_submit() returns 0 if nr is zero.
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*/
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#include <linux/aio_abi.h>
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#include "config.h"
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#include "tst_test.h"
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#include "lapi/syscalls.h"
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#define TEST_FILE "test_file"
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#define MODE 0777
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static int fd;
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static char buf[100];
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static aio_context_t ctx;
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static struct iocb iocb;
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static struct iocb *iocbs[] = {&iocb};
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static struct tcase {
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aio_context_t *ctx;
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long nr;
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struct iocb **iocbs;
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const char *desc;
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} tc[] = {
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{&ctx, 1, iocbs, "returns the number of iocbs submitted"},
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{&ctx, 0, NULL, "returns 0 if nr is zero"},
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};
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static inline void io_prep_option(struct iocb *cb, int fd, void *buf,
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size_t count, long long offset, unsigned opcode)
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{
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memset(cb, 0, sizeof(*cb));
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cb->aio_fildes = fd;
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cb->aio_lio_opcode = opcode;
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cb->aio_buf = (uint64_t)buf;
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cb->aio_offset = offset;
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cb->aio_nbytes = count;
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}
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static void setup(void)
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{
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TST_EXP_PASS_SILENT(tst_syscall(__NR_io_setup, 1, &ctx));
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fd = SAFE_OPEN(TEST_FILE, O_RDONLY | O_CREAT, MODE);
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io_prep_option(&iocb, fd, buf, 0, 0, IOCB_CMD_PREAD);
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}
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static void cleanup(void)
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{
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if (fd > 0)
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SAFE_CLOSE(fd);
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if (tst_syscall(__NR_io_destroy, ctx))
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tst_brk(TBROK | TERRNO, "io_destroy() failed");
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}
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static void run(unsigned int i)
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{
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struct io_event evbuf;
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struct timespec timeout = { .tv_sec = 1 };
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long j;
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TEST(tst_syscall(__NR_io_submit, *tc[i].ctx, tc[i].nr, tc[i].iocbs));
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if (TST_RET == tc[i].nr)
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tst_res(TPASS, "io_submit() %s", tc[i].desc);
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else
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tst_res(TFAIL | TTERRNO, "io_submit() returns %ld, expected %ld", TST_RET, tc[i].nr);
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for (j = 0; j < TST_RET; j++) {
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tst_syscall(__NR_io_getevents, *tc[i].ctx, 1, 1, &evbuf,
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&timeout);
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}
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}
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static struct tst_test test = {
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.tcnt = ARRAY_SIZE(tc),
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.needs_tmpdir = 1,
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.needs_kconfigs = (const char *[]) {
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"CONFIG_AIO=y",
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NULL
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},
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.setup = setup,
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.cleanup = cleanup,
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.test = run,
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};
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