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C++ WT_SESSION类代码示例

本文整理汇总了C++中WT_SESSION类的典型用法代码示例。如果您正苦于以下问题：C++ WT_SESSION类的具体用法？C++ WT_SESSION怎么用？C++ WT_SESSION使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。


在下文中一共展示了WT_SESSION类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: do_checkpoints

/*
 * Function for repeatedly running checkpoint operations.
 */
static WT_THREAD_RET
do_checkpoints(void *_opts)
{
	TEST_OPTS *opts;
	WT_SESSION *session;
	time_t now, start;
	int ret;

	opts = (TEST_OPTS *)_opts;
	(void)time(&start);
	(void)time(&now);

	while (difftime(now, start) < RUNTIME) {
		testutil_check(
		    opts->conn->open_session(opts->conn, NULL, NULL, &session));

		if ((ret = session->checkpoint(session, "force")) != 0)
			if (ret != EBUSY && ret != ENOENT)
				testutil_die(ret, "session.checkpoint");

		testutil_check(session->close(session, NULL));

		/*
		 * A short sleep to let operations process and avoid back to
		 * back checkpoints locking up resources.
		 */
		sleep(1);
		(void)time(&now);
	}

	return (WT_THREAD_RET_VALUE);
}
开发者ID:DINKIN，项目名称:mongo，代码行数:35，代码来源:main.c

示例2: session

 Status WiredTigerKVEngine::repairIdent( OperationContext* opCtx,
                                         const StringData& ident ) {
     WiredTigerSession session( _conn, -1 );
     WT_SESSION* s = session.getSession();
     string uri = _uri(ident);
     return wtRCToStatus( s->compact(s, uri.c_str(), NULL ) );
 }
开发者ID:usharanin26，项目名称:mongo，代码行数:7，代码来源:wiredtiger_kv_engine.cpp

示例3: op_cursor

/*
 * Open and close cursor on a table.
 */
void
op_cursor(void *arg)
{
	TEST_OPTS *opts;
	TEST_PER_THREAD_OPTS *args;
	WT_CURSOR *cursor;
	WT_SESSION *session;
	int i, ret;

	args = (TEST_PER_THREAD_OPTS *)arg;
	opts = args->testopts;

	testutil_check(
	    opts->conn->open_session(opts->conn, NULL, NULL, &session));

	if ((ret = session->open_cursor(
	    session, opts->uri, NULL, NULL, &cursor)) != 0) {
		if (ret != ENOENT && ret != EBUSY)
			testutil_die(ret, "session.open_cursor");
	} else {
		/* Put some data in if asked to. */
		if (args->testopts->do_data_ops) {
			for (i = 0; i < 1000; i++) {
				cursor->set_key(cursor, i);
				cursor->set_value(cursor, "abcdef");
				cursor->insert(cursor);
			}
		}
		testutil_check(cursor->close(cursor));
	}

	testutil_check(session->close(session, NULL));
	args->thread_counter++;
}
开发者ID:ajdavis，项目名称:mongo，代码行数:37，代码来源:thread.c

示例4: op_bulk

/*
 * Create a table and open a bulk cursor on it.
 */
void
op_bulk(void *arg)
{
	TEST_OPTS *opts;
	TEST_PER_THREAD_OPTS *args;
	WT_CURSOR *c;
	WT_SESSION *session;
	int ret;

	args = (TEST_PER_THREAD_OPTS *)arg;
	opts = args->testopts;

	testutil_check(
	    opts->conn->open_session(opts->conn, NULL, NULL, &session));

	if ((ret = session->create(session,
	    opts->uri, DEFAULT_TABLE_SCHEMA)) != 0)
		if (ret != EEXIST && ret != EBUSY)
			testutil_die(ret, "session.create");

	if (ret == 0) {
		__wt_yield();
		if ((ret = session->open_cursor(session,
		    opts->uri, NULL, "bulk,checkpoint_wait=false", &c)) == 0) {
			 testutil_check(c->close(c));
		} else if (ret != ENOENT && ret != EBUSY && ret != EINVAL)
			testutil_die(ret, "session.open_cursor bulk");
	}

	testutil_check(session->close(session, NULL));
	args->thread_counter++;
}
开发者ID:ajdavis，项目名称:mongo，代码行数:35，代码来源:thread.c

示例5: newCappedRecordStore

        virtual RecordStore* newCappedRecordStore( const std::string& ns,
                                                   int64_t cappedMaxSize,
                                                   int64_t cappedMaxDocs ) {

            WiredTigerRecoveryUnit* ru = new WiredTigerRecoveryUnit( _sessionCache );
            OperationContextNoop txn( ru );
            string uri = "table:a.b";

            CollectionOptions options;
            options.capped = true;

            StatusWith<std::string> result =
                WiredTigerRecordStore::generateCreateString(ns, options, "");
            ASSERT_TRUE(result.isOK());
            std::string config = result.getValue();

            {
                WriteUnitOfWork uow(&txn);
                WT_SESSION* s = ru->getSession()->getSession();
                invariantWTOK( s->create( s, uri.c_str(), config.c_str() ) );
                uow.commit();
            }

            return new WiredTigerRecordStore( &txn, ns, uri, true, cappedMaxSize, cappedMaxDocs );
        }
开发者ID:CodeHub2，项目名称:mongo，代码行数:25，代码来源:wiredtiger_record_store_test.cpp

示例6: main

/*! [thread main] */
int
main(void)
{
	WT_SESSION *session;
	WT_CURSOR *cursor;
	pthread_t threads[NUM_THREADS];
	int i, ret;

	if ((ret = wiredtiger_open(home, NULL,
	    "create", &conn)) != 0)
		fprintf(stderr, "Error connecting to %s: %s\n",
		    home, wiredtiger_strerror(ret));
	/* Note: further error checking omitted for clarity. */

	ret = conn->open_session(conn, NULL, NULL, &session);
	ret = session->create(session, "table:access",
	    "key_format=S,value_format=S");
	ret = session->open_cursor(session, "table:access", NULL,
	    "overwrite", &cursor);
	cursor->set_key(cursor, "key1");
	cursor->set_value(cursor, "value1");
	ret = cursor->insert(cursor);
	ret = session->close(session, NULL);

	for (i = 0; i < NUM_THREADS; i++)
		ret = pthread_create(&threads[i], NULL, scan_thread, NULL);

	for (i = 0; i < NUM_THREADS; i++)
		ret = pthread_join(threads[i], NULL);

	ret = conn->close(conn, NULL);

	return (ret);
}
开发者ID:zhliu03，项目名称:wiredtiger，代码行数:35，代码来源:ex_thread.c

示例7: obj_bulk

void
obj_bulk(void)
{
	WT_CURSOR *c;
	WT_SESSION *session;
	int ret;

	if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0)
		testutil_die(ret, "conn.session");

	if ((ret = session->create(session, uri, config)) != 0)
		if (ret != EEXIST && ret != EBUSY)
			testutil_die(ret, "session.create");

	if (ret == 0) {
		__wt_yield();
		if ((ret = session->open_cursor(
		    session, uri, NULL, "bulk", &c)) == 0) {
			if ((ret = c->close(c)) != 0)
				testutil_die(ret, "cursor.close");
		} else if (ret != ENOENT && ret != EBUSY && ret != EINVAL)
			testutil_die(ret, "session.open_cursor bulk");
	}
	if ((ret = session->close(session, NULL)) != 0)
		testutil_die(ret, "session.close");
}
开发者ID:DINKIN，项目名称:mongo，代码行数:26，代码来源:file.c

示例8: scan_thread

/*! [thread scan] */
void *
scan_thread(void *conn_arg)
{
	WT_CONNECTION *conn;
	WT_CURSOR *cursor;
	WT_SESSION *session;
	const char *key, *value;
	int ret;

	conn = conn_arg;
	ret = conn->open_session(conn, NULL, NULL, &session);
	ret = session->open_cursor(
	    session, "table:access", NULL, NULL, &cursor);

	/* Show all records. */
	while ((ret = cursor->next(cursor)) == 0) {
		ret = cursor->get_key(cursor, &key);
		ret = cursor->get_value(cursor, &value);

		printf("Got record: %s : %s\n", key, value);
	}
	if (ret != WT_NOTFOUND)
		fprintf(stderr,
		    "WT_CURSOR.next: %s\n", session->strerror(session, ret));

	return (NULL);
}
开发者ID:AshishSanju，项目名称:mongo，代码行数:28，代码来源:ex_thread.c

示例9: obj_create_unique

void
obj_create_unique(int force)
{
	WT_SESSION *session;
	int ret;
	char new_uri[64];

	if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0)
		testutil_die(ret, "conn.session");

	/* Generate a unique object name. */
	if ((ret = pthread_rwlock_wrlock(&single)) != 0)
		testutil_die(ret, "pthread_rwlock_wrlock single");
	testutil_check(__wt_snprintf(
	    new_uri, sizeof(new_uri), "%s.%u", uri, ++uid));
	if ((ret = pthread_rwlock_unlock(&single)) != 0)
		testutil_die(ret, "pthread_rwlock_unlock single");

	if ((ret = session->create(session, new_uri, config)) != 0)
		testutil_die(ret, "session.create");

	__wt_yield();
	while ((ret = session->drop(
	    session, new_uri, force ? "force" : NULL)) != 0)
		if (ret != EBUSY)
			testutil_die(ret, "session.drop: %s", new_uri);

	if ((ret = session->close(session, NULL)) != 0)
		testutil_die(ret, "session.close");
}
开发者ID:DINKIN，项目名称:mongo，代码行数:30，代码来源:file.c

示例10: main

int
main(int argc, char *argv[])
{
	WT_SESSION *session;
	clock_t ce, cs;
	pthread_t idlist[100];
	uint64_t i, id;
	char buf[100];

	opts = &_opts;
	memset(opts, 0, sizeof(*opts));
	opts->table_type = TABLE_ROW;
	opts->n_append_threads = N_APPEND_THREADS;
	opts->nrecords = N_RECORDS;
	testutil_check(testutil_parse_opts(argc, argv, opts));
	testutil_make_work_dir(opts->home);

	snprintf(buf, sizeof(buf), 
	    "create,"
	    "cache_size=%s,"
	    "eviction=(threads_max=5),"
	    "statistics=(fast)",
	    opts->table_type == TABLE_FIX ? "500MB" : "2GB");
	testutil_check(wiredtiger_open(opts->home, NULL, buf, &opts->conn));
	testutil_check(
	    opts->conn->open_session(opts->conn, NULL, NULL, &session));
	snprintf(buf, sizeof(buf),
	    "key_format=r,value_format=%s,"
	    "allocation_size=4K,leaf_page_max=64K",
	    opts->table_type == TABLE_FIX ? "8t" : "S");
	testutil_check(session->create(session, opts->uri, buf));
	testutil_check(session->close(session, NULL));

	page_init(5000);

	/* Force to disk and re-open. */
	testutil_check(opts->conn->close(opts->conn, NULL));
	testutil_check(wiredtiger_open(opts->home, NULL, NULL, &opts->conn));

	(void)signal(SIGINT, onsig);

	cs = clock();
	id = 0;
	for (i = 0; i < opts->n_append_threads; ++i, ++id) {
		printf("append: %" PRIu64 "\n", id);
		testutil_check(pthread_create(
		    &idlist[id], NULL, thread_append, (void *)opts));
	}

	for (i = 0; i < id; ++i)
		testutil_check(pthread_join(idlist[i], NULL));

	ce = clock();
	printf("%" PRIu64 "M records: %.2lf processor seconds\n",
	    opts->max_inserted_id / MILLION,
	    (ce - cs) / (double)CLOCKS_PER_SEC);

	testutil_cleanup(opts);
	return (EXIT_SUCCESS);
}
开发者ID:judahschvimer，项目名称:mongo，代码行数:60，代码来源:main.c

示例11: sweep_stats

static void
sweep_stats(void)
{
	static const int list[] = {
		WT_STAT_CONN_CURSOR_SWEEP_BUCKETS,
		WT_STAT_CONN_CURSOR_SWEEP_CLOSED,
		WT_STAT_CONN_CURSOR_SWEEP_EXAMINED,
		WT_STAT_CONN_CURSOR_SWEEP,
		WT_STAT_CONN_DH_SWEEP_REF,
		WT_STAT_CONN_DH_SWEEP_CLOSE,
		WT_STAT_CONN_DH_SWEEP_REMOVE,
		WT_STAT_CONN_DH_SWEEP_TOD,
		WT_STAT_CONN_DH_SWEEPS,
		WT_STAT_CONN_DH_SESSION_SWEEPS,
		-1
	};
	WT_SESSION *session;
	WT_CURSOR *cursor;
	uint64_t value;
	int i;
	const char *desc, *pvalue;

	testutil_check(conn->open_session(conn, NULL, NULL, &session));
	testutil_check(session->open_cursor(
	    session, "statistics:", NULL, NULL, &cursor));
	for (i = 0;; ++i) {
		if (list[i] == -1)
			break;
		cursor->set_key(cursor, list[i]);
		testutil_check(cursor->search(cursor));
		testutil_check(
		    cursor->get_value(cursor, &desc, &pvalue, &value));
		printf("\t" "%s=%s\n", desc, pvalue);
	}
}
开发者ID:ajdavis，项目名称:mongo，代码行数:35，代码来源:main.c

示例12: check_copy

/*
 * check_copy --
 *	Confirm the hot backup worked.
 */
static void
check_copy(void)
{
	WT_CONNECTION *conn;
	WT_SESSION *session;
	int ret;

	wts_open(RUNDIR_BACKUP, 0, &conn);

	/*
	 * Open a session and verify the store; some data-sources don't support
	 * verify.
	 *
	 * XXX
	 * LSM can deadlock if WT_SESSION methods are called at the wrong time,
	 * don't do that for now.
	 */
	if (!DATASOURCE("lsm") && !DATASOURCE("memrata")) {
		if ((ret = conn->open_session(
		    conn, NULL, NULL, &session)) != 0)
			die(ret, "connection.open_session");

		if ((ret = session->verify(session, g.uri, NULL)) != 0)
			die(ret, "session.verify: %s", g.uri);
	}

	if ((ret = conn->close(conn, NULL)) != 0)
		die(ret, "connection.close: %s", RUNDIR_BACKUP);
}
开发者ID:ckoolkarni，项目名称:wiredtiger，代码行数:33，代码来源:backup.c

示例13: indexInsert

	bool indexInsert(size_t indexId, fstring key, llong recId) override {
		assert(started == m_status);
		assert(indexId < m_indices.size());
		WT_ITEM item;
		WT_SESSION* ses = m_session.ses;
		const Schema& schema = m_sconf.getIndexSchema(indexId);
		WT_CURSOR* cur = m_indices[indexId].insert;
		WtWritableIndex::setKeyVal(schema, cur, key, recId, &item, &m_wrtBuf);
		int err = cur->insert(cur);
		m_sizeDiff += sizeof(llong) + key.size();
		if (schema.m_isUnique) {
			if (WT_DUPLICATE_KEY == err) {
				return false;
			}
			if (err) {
				THROW_STD(invalid_argument
					, "ERROR: wiredtiger insert unique index: %s", ses->strerror(ses, err));
			}
		}
		else {
			if (WT_DUPLICATE_KEY == err) {
				assert(0); // assert in debug
				return true; // ignore in release
			}
			if (err) {
				THROW_STD(invalid_argument
					, "ERROR: wiredtiger insert multi index: %s", ses->strerror(ses, err));
			}
		}
		return true;
	}
开发者ID:CovariantStudio，项目名称:terark-db，代码行数:31，代码来源:wt_db_segment.cpp

示例14: find_table_count

/*
 * Ensure that icount matches the number of records in the 
 * existing table.
 */
int find_table_count(CONFIG *cfg)
{
	WT_CONNECTION *conn;
	WT_CURSOR *cursor;
	WT_SESSION *session;
	char *key;
	int ret;

	conn = cfg->conn;

	if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0) {
		lprintf(cfg, ret, 0,
		    "open_session failed finding existing table count");
		goto err;
	}
	if ((ret = session->open_cursor(session, cfg->uri,
	    NULL, NULL, &cursor)) != 0) {
		lprintf(cfg, ret, 0,
		    "open_cursor failed finding existing table count");
		goto err;
	}
	if ((ret = cursor->prev(cursor)) != 0) {
		lprintf(cfg, ret, 0,
		    "cursor prev failed finding existing table count");
		goto err;
	}
	cursor->get_key(cursor, &key);
	cfg->icount = (uint32_t)atoi(key);

err:	session->close(session, NULL);
	return (ret);
}
开发者ID:umerazad，项目名称:wiredtiger，代码行数:36，代码来源:wtperf.c

示例15: page_init

static void
page_init(uint64_t n)
{
	WT_CONNECTION *conn;
	WT_CURSOR *cursor;
	WT_SESSION *session;
	uint64_t recno, vrecno;
	char buf[64];

	conn = opts->conn;

	testutil_check(conn->open_session(conn, NULL, NULL, &session));
	testutil_check(
	    session->open_cursor(session, opts->uri, NULL, "append", &cursor));

	vrecno = 0;
	buf[0] = '\2';
	for (recno = 1;; ++recno) {
		if (opts->table_type == TABLE_FIX)
			cursor->set_value(cursor, buf[0]);
		else {
			if (recno % 3 == 0)
				++vrecno;
			testutil_check(__wt_snprintf(buf,
			    sizeof(buf), "%" PRIu64 " VALUE ------", vrecno));
			cursor->set_value(cursor, buf);
		}
		testutil_check(cursor->insert(cursor));
		testutil_check(cursor->get_key(cursor, &opts->max_inserted_id));
		if (opts->max_inserted_id >= n)
			break;
	}
}
开发者ID:ajdavis，项目名称:mongo，代码行数:33，代码来源:main.c


注：本文中的WT_SESSION类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。