mirror of
https://github.com/ceph/ceph
synced 2025-02-12 21:38:50 +00:00
717621f66e
Previously, there was no way to recover the locator key used to create and object. Now, rados_objects_list_next and ObjectIterator will return the key as well as the object name. Signed-off-by: Samuel Just <samuel.just@dreamhost.com>
310 lines
8.3 KiB
C
310 lines
8.3 KiB
C
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
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// vim: ts=8 sw=2 smarttab
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/*
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* Ceph - scalable distributed file system
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*
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* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
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*
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* This is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software
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* Foundation. See file COPYING.
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*
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*/
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#include "include/rados/librados.h"
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#include <assert.h>
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#include <pthread.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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static int do_rados_setxattr(rados_ioctx_t io_ctx, const char *oid,
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const char *key, const char *val)
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{
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int ret = rados_setxattr(io_ctx, oid, key, val, strlen(val) + 1);
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if (ret < 0) {
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printf("rados_setxattr failed with error %d\n", ret);
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return 1;
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}
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printf("rados_setxattr %s=%s\n", key, val);
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return 0;
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}
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static int do_rados_getxattr(rados_ioctx_t io_ctx, const char *oid,
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const char *key, const char *expected)
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{
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size_t blen = strlen(expected) + 1;
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char buf[blen];
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memset(buf, 0, sizeof(buf));
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int r = rados_getxattr(io_ctx, oid, key, buf, blen);
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if (r < 0) {
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printf("rados_getxattr(%s) failed with error %d\n", key, r);
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return 1;
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}
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if (strcmp(buf, expected) != 0) {
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printf("rados_getxattr(%s) got wrong result! "
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"expected: '%s'. got '%s'\n", key, expected, buf);
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return 1;
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}
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printf("rados_getxattr %s=%s\n", key, buf);
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return 0;
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}
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static int do_rados_getxattrs(rados_ioctx_t io_ctx, const char *oid,
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const char **exkeys, const char **exvals)
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{
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rados_xattrs_iter_t iter;
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int nval = 0, i, nfound = 0, ret = 0;
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for (i = 0; exvals[i]; ++i) {
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++nval;
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}
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ret = rados_getxattrs(io_ctx, oid, &iter);
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if (ret) {
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printf("rados_getxattrs(%s) failed with error %d\n", oid, ret);
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return 1;
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}
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while (1) {
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size_t len;
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const char *key, *val;
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ret = rados_getxattrs_next(iter, &key, &val, &len);
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if (ret) {
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printf("rados_getxattrs(%s): rados_getxattrs_next "
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"returned error %d\n", oid, ret);
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return 1;
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}
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if (!key)
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break;
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for (i = 0; i < nval; ++i) {
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if (strcmp(exkeys[i], key))
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continue;
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if ((len == strlen(exvals[i]) + 1) && (!strcmp(exvals[i], val))) {
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nfound++;
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break;
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}
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printf("rados_getxattrs(%s): got key %s, but the "
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"value was %s rather than %s.\n",
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oid, key, val, exvals[i]);
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return 1;
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}
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}
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if (nfound != nval) {
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printf("rados_getxattrs(%s): only found %d extended attributes. "
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"Expected %d\n", oid, nfound, nval);
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return 1;
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}
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rados_getxattrs_end(iter);
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printf("rados_getxattrs(%s)\n", oid);
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return 0;
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}
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static int testrados(void)
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{
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char tmp[32];
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int i, r;
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rados_t cl;
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if (rados_create(&cl, NULL) < 0) {
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printf("error initializing\n");
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return 1;
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}
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if (rados_conf_read_file(cl, NULL)) {
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printf("error reading configuration file\n");
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return 1;
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}
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// Try to set a configuration option that doesn't exist.
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// This should fail.
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if (!rados_conf_set(cl, "config option that doesn't exist",
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"some random value")) {
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printf("error: succeeded in setting nonexistent config option\n");
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return 1;
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}
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if (rados_conf_get(cl, "log to stderr", tmp, sizeof(tmp))) {
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printf("error: failed to read log_to_stderr from config\n");
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return 1;
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}
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// Can we change it?
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if (rados_conf_set(cl, "log to stderr", "true")) {
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printf("error: error setting log_to_stderr\n");
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return 1;
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}
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if (rados_conf_get(cl, "log to stderr", tmp, sizeof(tmp))) {
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printf("error: failed to read log_to_stderr from config\n");
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return 1;
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}
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if (strcmp(tmp, "true")) {
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printf("error: new setting for log_to_stderr failed to take effect.\n");
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return 1;
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}
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if (rados_connect(cl)) {
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printf("error connecting\n");
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return 1;
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}
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if (rados_connect(cl) == 0) {
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printf("second connect attempt didn't return an error\n");
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return 1;
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}
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/* create an io_ctx */
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r = rados_pool_create(cl, "foo");
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printf("rados_pool_create = %d\n", r);
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rados_ioctx_t io_ctx;
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r = rados_ioctx_create(cl, "foo", &io_ctx);
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printf("rados_ioctx_create = %d, io_ctx = %p\n", r, io_ctx);
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/* list all pools */
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{
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int buf_sz = rados_pool_list(cl, NULL, 0);
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printf("need buffer size of %d\n", buf_sz);
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char buf[buf_sz];
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int r = rados_pool_list(cl, buf, buf_sz);
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if (r != buf_sz) {
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printf("buffer size mismatch: got %d the first time, but %d "
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"the second.\n", buf_sz, r);
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return 1;
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}
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const char *b = buf;
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printf("begin pools.\n");
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while (1) {
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if (b[0] == '\0')
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break;
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printf(" pool: '%s'\n", b);
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b += strlen(b) + 1;
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};
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printf("end pools.\n");
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}
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/* stat */
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struct rados_pool_stat_t st;
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r = rados_ioctx_pool_stat(io_ctx, &st);
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printf("rados_ioctx_pool_stat = %d, %lld KB, %lld objects\n", r, (long long)st.num_kb, (long long)st.num_objects);
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/* snapshots */
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r = rados_ioctx_snap_create(io_ctx, "snap1");
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printf("rados_ioctx_snap_create snap1 = %d\n", r);
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rados_snap_t snaps[10];
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r = rados_ioctx_snap_list(io_ctx, snaps, 10);
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for (i=0; i<r; i++) {
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char name[100];
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rados_ioctx_snap_get_name(io_ctx, snaps[i], name, sizeof(name));
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printf("rados_ioctx_snap_list got snap %lld %s\n", (long long)snaps[i], name);
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}
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rados_snap_t snapid;
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r = rados_ioctx_snap_lookup(io_ctx, "snap1", &snapid);
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printf("rados_ioctx_snap_lookup snap1 got %lld, result %d\n", (long long)snapid, r);
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r = rados_ioctx_snap_remove(io_ctx, "snap1");
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printf("rados_ioctx_snap_remove snap1 = %d\n", r);
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/* sync io */
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time_t tm;
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char buf[128], buf2[128];
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time(&tm);
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snprintf(buf, 128, "%s", ctime(&tm));
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const char *oid = "foo_object";
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r = rados_write(io_ctx, oid, buf, strlen(buf) + 1, 0);
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printf("rados_write = %d\n", r);
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r = rados_read(io_ctx, oid, buf2, sizeof(buf2), 0);
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printf("rados_read = %d\n", r);
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if (memcmp(buf, buf2, r))
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printf("*** content mismatch ***\n");
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/* attrs */
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if (do_rados_setxattr(io_ctx, oid, "b", "2"))
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return 1;
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if (do_rados_setxattr(io_ctx, oid, "a", "1"))
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return 1;
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if (do_rados_setxattr(io_ctx, oid, "c", "3"))
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return 1;
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if (do_rados_getxattr(io_ctx, oid, "a", "1"))
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return 1;
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if (do_rados_getxattr(io_ctx, oid, "b", "2"))
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return 1;
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if (do_rados_getxattr(io_ctx, oid, "c", "3"))
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return 1;
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const char *exkeys[] = { "a", "b", "c", NULL };
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const char *exvals[] = { "1", "2", "3", NULL };
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if (do_rados_getxattrs(io_ctx, oid, exkeys, exvals))
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return 1;
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uint64_t size;
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time_t mtime;
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r = rados_stat(io_ctx, oid, &size, &mtime);
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printf("rados_stat size = %lld mtime = %d = %d\n", (long long)size, (int)mtime, r);
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r = rados_stat(io_ctx, "does_not_exist", NULL, NULL);
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printf("rados_stat(does_not_exist) = %d\n", r);
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/* exec */
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rados_exec(io_ctx, oid, "crypto", "md5", buf, strlen(buf) + 1, buf, 128);
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printf("exec result=%s\n", buf);
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r = rados_read(io_ctx, oid, buf2, 128, 0);
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printf("read result=%s\n", buf2);
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printf("size=%d\n", r);
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/* aio */
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rados_completion_t a, b;
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rados_aio_create_completion(0, 0, 0, &a);
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rados_aio_create_completion(0, 0, 0, &b);
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rados_aio_write(io_ctx, "a", a, buf, 100, 0);
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rados_aio_write(io_ctx, "../b/bb_bb_bb\\foo\\bar", b, buf, 100, 0);
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rados_aio_wait_for_safe(a);
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printf("a safe\n");
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rados_aio_wait_for_safe(b);
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printf("b safe\n");
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rados_aio_release(a);
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rados_aio_release(b);
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/* test flush */
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printf("testing aio flush\n");
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rados_completion_t c;
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rados_aio_create_completion(0, 0, 0, &c);
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rados_aio_write(io_ctx, "c", c, buf, 100, 0);
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int safe = rados_aio_is_safe(c);
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printf("a should not yet be safe and ... %s\n", safe ? "is":"is not");
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assert(!safe);
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rados_aio_flush(io_ctx);
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safe = rados_aio_is_safe(c);
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printf("a should be safe and ... %s\n", safe ? "is":"is not");
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assert(safe);
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rados_aio_release(c);
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rados_read(io_ctx, "../b/bb_bb_bb\\foo\\bar", buf2, 128, 0);
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/* list objects */
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rados_list_ctx_t h;
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r = rados_objects_list_open(io_ctx, &h);
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printf("rados_list_objects_open = %d, h = %p\n", r, h);
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const char *poolname;
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while (rados_objects_list_next(h, &poolname, NULL) == 0)
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printf("rados_list_objects_next got object '%s'\n", poolname);
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rados_objects_list_close(h);
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/* stat */
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r = rados_ioctx_pool_stat(io_ctx, &st);
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printf("rados_stat_pool = %d, %lld KB, %lld objects\n", r, (long long)st.num_kb, (long long)st.num_objects);
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/* delete a pool */
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printf("rados_delete_pool = %d\n", r);
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rados_ioctx_destroy(io_ctx);
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r = rados_pool_delete(cl, "foo");
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printf("rados_ioctx_pool_delete = %d\n", r);
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rados_shutdown(cl);
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return 0;
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}
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int main(int argc, const char **argv)
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{
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return testrados();
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}
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