mirror of https://gitee.com/openkylin/qemu.git
606 lines
16 KiB
C
606 lines
16 KiB
C
/*
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* Block replication tests
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*
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* Copyright (c) 2016 FUJITSU LIMITED
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* Author: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qapi/qmp/qdict.h"
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#include "qemu/option.h"
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#include "qemu/main-loop.h"
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#include "replication.h"
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#include "block/block_int.h"
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#include "block/qdict.h"
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#include "sysemu/block-backend.h"
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#define IMG_SIZE (64 * 1024 * 1024)
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/* primary */
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#define P_ID "primary-id"
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static char p_local_disk[] = "/tmp/p_local_disk.XXXXXX";
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/* secondary */
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#define S_ID "secondary-id"
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#define S_LOCAL_DISK_ID "secondary-local-disk-id"
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static char s_local_disk[] = "/tmp/s_local_disk.XXXXXX";
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static char s_active_disk[] = "/tmp/s_active_disk.XXXXXX";
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static char s_hidden_disk[] = "/tmp/s_hidden_disk.XXXXXX";
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/* FIXME: steal from blockdev.c */
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QemuOptsList qemu_drive_opts = {
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.name = "drive",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
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.desc = {
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{ /* end of list */ }
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},
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};
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#define NOT_DONE 0x7fffffff
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static void blk_rw_done(void *opaque, int ret)
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{
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*(int *)opaque = ret;
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}
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static void test_blk_read(BlockBackend *blk, long pattern,
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int64_t pattern_offset, int64_t pattern_count,
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int64_t offset, int64_t count,
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bool expect_failed)
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{
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void *pattern_buf = NULL;
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QEMUIOVector qiov;
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void *cmp_buf = NULL;
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int async_ret = NOT_DONE;
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if (pattern) {
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cmp_buf = g_malloc(pattern_count);
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memset(cmp_buf, pattern, pattern_count);
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}
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pattern_buf = g_malloc(count);
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if (pattern) {
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memset(pattern_buf, pattern, count);
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} else {
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memset(pattern_buf, 0x00, count);
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}
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qemu_iovec_init(&qiov, 1);
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qemu_iovec_add(&qiov, pattern_buf, count);
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blk_aio_preadv(blk, offset, &qiov, 0, blk_rw_done, &async_ret);
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while (async_ret == NOT_DONE) {
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main_loop_wait(false);
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}
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if (expect_failed) {
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g_assert(async_ret != 0);
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} else {
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g_assert(async_ret == 0);
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if (pattern) {
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g_assert(memcmp(pattern_buf + pattern_offset,
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cmp_buf, pattern_count) <= 0);
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}
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}
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g_free(pattern_buf);
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g_free(cmp_buf);
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qemu_iovec_destroy(&qiov);
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}
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static void test_blk_write(BlockBackend *blk, long pattern, int64_t offset,
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int64_t count, bool expect_failed)
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{
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void *pattern_buf = NULL;
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QEMUIOVector qiov;
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int async_ret = NOT_DONE;
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pattern_buf = g_malloc(count);
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if (pattern) {
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memset(pattern_buf, pattern, count);
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} else {
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memset(pattern_buf, 0x00, count);
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}
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qemu_iovec_init(&qiov, 1);
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qemu_iovec_add(&qiov, pattern_buf, count);
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blk_aio_pwritev(blk, offset, &qiov, 0, blk_rw_done, &async_ret);
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while (async_ret == NOT_DONE) {
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main_loop_wait(false);
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}
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if (expect_failed) {
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g_assert(async_ret != 0);
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} else {
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g_assert(async_ret == 0);
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}
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g_free(pattern_buf);
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qemu_iovec_destroy(&qiov);
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}
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/*
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* Create a uniquely-named empty temporary file.
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*/
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static void make_temp(char *template)
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{
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int fd;
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fd = mkstemp(template);
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g_assert(fd >= 0);
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close(fd);
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}
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static void prepare_imgs(void)
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{
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make_temp(p_local_disk);
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make_temp(s_local_disk);
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make_temp(s_active_disk);
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make_temp(s_hidden_disk);
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/* Primary */
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bdrv_img_create(p_local_disk, "qcow2", NULL, NULL, NULL, IMG_SIZE,
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BDRV_O_RDWR, true, &error_abort);
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/* Secondary */
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bdrv_img_create(s_local_disk, "qcow2", NULL, NULL, NULL, IMG_SIZE,
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BDRV_O_RDWR, true, &error_abort);
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bdrv_img_create(s_active_disk, "qcow2", NULL, NULL, NULL, IMG_SIZE,
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BDRV_O_RDWR, true, &error_abort);
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bdrv_img_create(s_hidden_disk, "qcow2", NULL, NULL, NULL, IMG_SIZE,
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BDRV_O_RDWR, true, &error_abort);
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}
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static void cleanup_imgs(void)
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{
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/* Primary */
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unlink(p_local_disk);
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/* Secondary */
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unlink(s_local_disk);
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unlink(s_active_disk);
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unlink(s_hidden_disk);
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}
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static BlockBackend *start_primary(void)
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{
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BlockBackend *blk;
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QemuOpts *opts;
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QDict *qdict;
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char *cmdline;
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cmdline = g_strdup_printf("driver=replication,mode=primary,node-name=xxx,"
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"file.driver=qcow2,file.file.filename=%s,"
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"file.file.locking=off"
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, p_local_disk);
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opts = qemu_opts_parse_noisily(&qemu_drive_opts, cmdline, false);
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g_free(cmdline);
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qdict = qemu_opts_to_qdict(opts, NULL);
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qdict_set_default_str(qdict, BDRV_OPT_CACHE_DIRECT, "off");
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qdict_set_default_str(qdict, BDRV_OPT_CACHE_NO_FLUSH, "off");
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blk = blk_new_open(NULL, NULL, qdict, BDRV_O_RDWR, &error_abort);
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g_assert(blk);
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monitor_add_blk(blk, P_ID, &error_abort);
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qemu_opts_del(opts);
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return blk;
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}
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static void teardown_primary(void)
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{
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BlockBackend *blk;
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AioContext *ctx;
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/* remove P_ID */
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blk = blk_by_name(P_ID);
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assert(blk);
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ctx = blk_get_aio_context(blk);
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aio_context_acquire(ctx);
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monitor_remove_blk(blk);
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blk_unref(blk);
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aio_context_release(ctx);
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}
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static void test_primary_read(void)
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{
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BlockBackend *blk;
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blk = start_primary();
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/* read from 0 to IMG_SIZE */
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test_blk_read(blk, 0, 0, IMG_SIZE, 0, IMG_SIZE, true);
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teardown_primary();
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}
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static void test_primary_write(void)
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{
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BlockBackend *blk;
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blk = start_primary();
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/* write from 0 to IMG_SIZE */
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test_blk_write(blk, 0, 0, IMG_SIZE, true);
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teardown_primary();
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}
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static void test_primary_start(void)
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{
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BlockBackend *blk = NULL;
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blk = start_primary();
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replication_start_all(REPLICATION_MODE_PRIMARY, &error_abort);
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/* read from 0 to IMG_SIZE */
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test_blk_read(blk, 0, 0, IMG_SIZE, 0, IMG_SIZE, true);
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/* write 0x22 from 0 to IMG_SIZE */
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test_blk_write(blk, 0x22, 0, IMG_SIZE, false);
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teardown_primary();
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}
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static void test_primary_stop(void)
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{
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bool failover = true;
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start_primary();
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replication_start_all(REPLICATION_MODE_PRIMARY, &error_abort);
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replication_stop_all(failover, &error_abort);
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teardown_primary();
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}
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static void test_primary_do_checkpoint(void)
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{
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start_primary();
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replication_start_all(REPLICATION_MODE_PRIMARY, &error_abort);
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replication_do_checkpoint_all(&error_abort);
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teardown_primary();
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}
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static void test_primary_get_error_all(void)
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{
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start_primary();
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replication_start_all(REPLICATION_MODE_PRIMARY, &error_abort);
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replication_get_error_all(&error_abort);
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teardown_primary();
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}
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static BlockBackend *start_secondary(void)
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{
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QemuOpts *opts;
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QDict *qdict;
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BlockBackend *blk;
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char *cmdline;
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/* add s_local_disk and forge S_LOCAL_DISK_ID */
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cmdline = g_strdup_printf("file.filename=%s,driver=qcow2,"
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"file.locking=off",
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s_local_disk);
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opts = qemu_opts_parse_noisily(&qemu_drive_opts, cmdline, false);
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g_free(cmdline);
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qdict = qemu_opts_to_qdict(opts, NULL);
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qdict_set_default_str(qdict, BDRV_OPT_CACHE_DIRECT, "off");
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qdict_set_default_str(qdict, BDRV_OPT_CACHE_NO_FLUSH, "off");
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blk = blk_new_open(NULL, NULL, qdict, BDRV_O_RDWR, &error_abort);
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assert(blk);
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monitor_add_blk(blk, S_LOCAL_DISK_ID, &error_abort);
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/* format s_local_disk with pattern "0x11" */
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test_blk_write(blk, 0x11, 0, IMG_SIZE, false);
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qemu_opts_del(opts);
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/* add S_(ACTIVE/HIDDEN)_DISK and forge S_ID */
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cmdline = g_strdup_printf("driver=replication,mode=secondary,top-id=%s,"
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"file.driver=qcow2,file.file.filename=%s,"
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"file.file.locking=off,"
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"file.backing.driver=qcow2,"
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"file.backing.file.filename=%s,"
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"file.backing.file.locking=off,"
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"file.backing.backing=%s"
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, S_ID, s_active_disk, s_hidden_disk
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, S_LOCAL_DISK_ID);
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opts = qemu_opts_parse_noisily(&qemu_drive_opts, cmdline, false);
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g_free(cmdline);
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qdict = qemu_opts_to_qdict(opts, NULL);
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qdict_set_default_str(qdict, BDRV_OPT_CACHE_DIRECT, "off");
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qdict_set_default_str(qdict, BDRV_OPT_CACHE_NO_FLUSH, "off");
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blk = blk_new_open(NULL, NULL, qdict, BDRV_O_RDWR, &error_abort);
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assert(blk);
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monitor_add_blk(blk, S_ID, &error_abort);
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qemu_opts_del(opts);
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return blk;
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}
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static void teardown_secondary(void)
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{
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/* only need to destroy two BBs */
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BlockBackend *blk;
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AioContext *ctx;
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/* remove S_LOCAL_DISK_ID */
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blk = blk_by_name(S_LOCAL_DISK_ID);
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assert(blk);
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ctx = blk_get_aio_context(blk);
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aio_context_acquire(ctx);
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monitor_remove_blk(blk);
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blk_unref(blk);
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aio_context_release(ctx);
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/* remove S_ID */
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blk = blk_by_name(S_ID);
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assert(blk);
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ctx = blk_get_aio_context(blk);
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aio_context_acquire(ctx);
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monitor_remove_blk(blk);
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blk_unref(blk);
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aio_context_release(ctx);
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}
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static void test_secondary_read(void)
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{
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BlockBackend *blk;
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blk = start_secondary();
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/* read from 0 to IMG_SIZE */
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test_blk_read(blk, 0, 0, IMG_SIZE, 0, IMG_SIZE, true);
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teardown_secondary();
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}
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static void test_secondary_write(void)
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{
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BlockBackend *blk;
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blk = start_secondary();
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/* write from 0 to IMG_SIZE */
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test_blk_write(blk, 0, 0, IMG_SIZE, true);
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teardown_secondary();
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}
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static void test_secondary_start(void)
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{
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BlockBackend *top_blk, *local_blk;
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bool failover = true;
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top_blk = start_secondary();
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replication_start_all(REPLICATION_MODE_SECONDARY, &error_abort);
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/* read from s_local_disk (0, IMG_SIZE) */
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test_blk_read(top_blk, 0x11, 0, IMG_SIZE, 0, IMG_SIZE, false);
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/* write 0x22 to s_local_disk (IMG_SIZE / 2, IMG_SIZE) */
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local_blk = blk_by_name(S_LOCAL_DISK_ID);
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test_blk_write(local_blk, 0x22, IMG_SIZE / 2, IMG_SIZE / 2, false);
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/* replication will backup s_local_disk to s_hidden_disk */
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test_blk_read(top_blk, 0x11, IMG_SIZE / 2,
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IMG_SIZE / 2, 0, IMG_SIZE, false);
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/* write 0x33 to s_active_disk (0, IMG_SIZE / 2) */
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test_blk_write(top_blk, 0x33, 0, IMG_SIZE / 2, false);
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/* read from s_active_disk (0, IMG_SIZE/2) */
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test_blk_read(top_blk, 0x33, 0, IMG_SIZE / 2,
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0, IMG_SIZE / 2, false);
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/* unblock top_bs */
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replication_stop_all(failover, &error_abort);
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teardown_secondary();
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}
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static void test_secondary_stop(void)
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{
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BlockBackend *top_blk, *local_blk;
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bool failover = true;
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top_blk = start_secondary();
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replication_start_all(REPLICATION_MODE_SECONDARY, &error_abort);
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/* write 0x22 to s_local_disk (IMG_SIZE / 2, IMG_SIZE) */
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local_blk = blk_by_name(S_LOCAL_DISK_ID);
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test_blk_write(local_blk, 0x22, IMG_SIZE / 2, IMG_SIZE / 2, false);
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/* replication will backup s_local_disk to s_hidden_disk */
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test_blk_read(top_blk, 0x11, IMG_SIZE / 2,
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IMG_SIZE / 2, 0, IMG_SIZE, false);
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/* write 0x33 to s_active_disk (0, IMG_SIZE / 2) */
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test_blk_write(top_blk, 0x33, 0, IMG_SIZE / 2, false);
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/* do active commit */
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replication_stop_all(failover, &error_abort);
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/* read from s_local_disk (0, IMG_SIZE / 2) */
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test_blk_read(top_blk, 0x33, 0, IMG_SIZE / 2,
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0, IMG_SIZE / 2, false);
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/* read from s_local_disk (IMG_SIZE / 2, IMG_SIZE) */
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test_blk_read(top_blk, 0x22, IMG_SIZE / 2,
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IMG_SIZE / 2, 0, IMG_SIZE, false);
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teardown_secondary();
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}
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static void test_secondary_continuous_replication(void)
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{
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BlockBackend *top_blk, *local_blk;
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top_blk = start_secondary();
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replication_start_all(REPLICATION_MODE_SECONDARY, &error_abort);
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/* write 0x22 to s_local_disk (IMG_SIZE / 2, IMG_SIZE) */
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local_blk = blk_by_name(S_LOCAL_DISK_ID);
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test_blk_write(local_blk, 0x22, IMG_SIZE / 2, IMG_SIZE / 2, false);
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/* replication will backup s_local_disk to s_hidden_disk */
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test_blk_read(top_blk, 0x11, IMG_SIZE / 2,
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IMG_SIZE / 2, 0, IMG_SIZE, false);
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/* write 0x33 to s_active_disk (0, IMG_SIZE / 2) */
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test_blk_write(top_blk, 0x33, 0, IMG_SIZE / 2, false);
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/* do failover (active commit) */
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replication_stop_all(true, &error_abort);
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/* it should ignore all requests from now on */
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/* start after failover */
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replication_start_all(REPLICATION_MODE_PRIMARY, &error_abort);
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/* checkpoint */
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replication_do_checkpoint_all(&error_abort);
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/* stop */
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replication_stop_all(true, &error_abort);
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/* read from s_local_disk (0, IMG_SIZE / 2) */
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test_blk_read(top_blk, 0x33, 0, IMG_SIZE / 2,
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0, IMG_SIZE / 2, false);
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/* read from s_local_disk (IMG_SIZE / 2, IMG_SIZE) */
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test_blk_read(top_blk, 0x22, IMG_SIZE / 2,
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IMG_SIZE / 2, 0, IMG_SIZE, false);
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teardown_secondary();
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}
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static void test_secondary_do_checkpoint(void)
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{
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BlockBackend *top_blk, *local_blk;
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bool failover = true;
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top_blk = start_secondary();
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replication_start_all(REPLICATION_MODE_SECONDARY, &error_abort);
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/* write 0x22 to s_local_disk (IMG_SIZE / 2, IMG_SIZE) */
|
|
local_blk = blk_by_name(S_LOCAL_DISK_ID);
|
|
test_blk_write(local_blk, 0x22, IMG_SIZE / 2,
|
|
IMG_SIZE / 2, false);
|
|
|
|
/* replication will backup s_local_disk to s_hidden_disk */
|
|
test_blk_read(top_blk, 0x11, IMG_SIZE / 2,
|
|
IMG_SIZE / 2, 0, IMG_SIZE, false);
|
|
|
|
replication_do_checkpoint_all(&error_abort);
|
|
|
|
/* after checkpoint, read pattern 0x22 from s_local_disk */
|
|
test_blk_read(top_blk, 0x22, IMG_SIZE / 2,
|
|
IMG_SIZE / 2, 0, IMG_SIZE, false);
|
|
|
|
/* unblock top_bs */
|
|
replication_stop_all(failover, &error_abort);
|
|
|
|
teardown_secondary();
|
|
}
|
|
|
|
static void test_secondary_get_error_all(void)
|
|
{
|
|
bool failover = true;
|
|
|
|
start_secondary();
|
|
replication_start_all(REPLICATION_MODE_SECONDARY, &error_abort);
|
|
|
|
replication_get_error_all(&error_abort);
|
|
|
|
/* unblock top_bs */
|
|
replication_stop_all(failover, &error_abort);
|
|
|
|
teardown_secondary();
|
|
}
|
|
|
|
static void sigabrt_handler(int signo)
|
|
{
|
|
cleanup_imgs();
|
|
}
|
|
|
|
static void setup_sigabrt_handler(void)
|
|
{
|
|
struct sigaction sigact;
|
|
|
|
sigact = (struct sigaction) {
|
|
.sa_handler = sigabrt_handler,
|
|
.sa_flags = SA_RESETHAND,
|
|
};
|
|
sigemptyset(&sigact.sa_mask);
|
|
sigaction(SIGABRT, &sigact, NULL);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int ret;
|
|
qemu_init_main_loop(&error_fatal);
|
|
bdrv_init();
|
|
|
|
g_test_init(&argc, &argv, NULL);
|
|
setup_sigabrt_handler();
|
|
|
|
prepare_imgs();
|
|
|
|
/* Primary */
|
|
g_test_add_func("/replication/primary/read", test_primary_read);
|
|
g_test_add_func("/replication/primary/write", test_primary_write);
|
|
g_test_add_func("/replication/primary/start", test_primary_start);
|
|
g_test_add_func("/replication/primary/stop", test_primary_stop);
|
|
g_test_add_func("/replication/primary/do_checkpoint",
|
|
test_primary_do_checkpoint);
|
|
g_test_add_func("/replication/primary/get_error_all",
|
|
test_primary_get_error_all);
|
|
|
|
/* Secondary */
|
|
g_test_add_func("/replication/secondary/read", test_secondary_read);
|
|
g_test_add_func("/replication/secondary/write", test_secondary_write);
|
|
g_test_add_func("/replication/secondary/start", test_secondary_start);
|
|
g_test_add_func("/replication/secondary/stop", test_secondary_stop);
|
|
g_test_add_func("/replication/secondary/continuous_replication",
|
|
test_secondary_continuous_replication);
|
|
g_test_add_func("/replication/secondary/do_checkpoint",
|
|
test_secondary_do_checkpoint);
|
|
g_test_add_func("/replication/secondary/get_error_all",
|
|
test_secondary_get_error_all);
|
|
|
|
ret = g_test_run();
|
|
|
|
cleanup_imgs();
|
|
|
|
return ret;
|
|
}
|