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C++ DB_ENV::memp_stat方法代码示例

本文整理汇总了C++中DB_ENV::memp_stat方法的典型用法代码示例。如果您正苦于以下问题：C++ DB_ENV::memp_stat方法的具体用法？C++ DB_ENV::memp_stat怎么用？C++ DB_ENV::memp_stat使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DB_ENV的用法示例。


在下文中一共展示了DB_ENV::memp_stat方法的3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: malloc

static void
b_inmem_op_ds(u_int ops, int update)
{
	DB_ENV *dbenv;
	char *letters = "abcdefghijklmnopqrstuvwxuz";
	DB *dbp;
	DBT key, data;
	char *keybuf, *databuf;
	DB_MPOOL_STAT  *gsp;

	DB_BENCH_ASSERT((keybuf = malloc(keysize)) != NULL);
	DB_BENCH_ASSERT((databuf = malloc(datasize)) != NULL);

	memset(&key, 0, sizeof(key));
	memset(&data, 0, sizeof(data));
	key.data = keybuf;
	key.size = keysize;
	memset(keybuf, 'a', keysize);

	data.data = databuf;
	data.size = datasize;
	memset(databuf, 'b', datasize);

	DB_BENCH_ASSERT(db_create(&dbp, NULL, 0) == 0);
	dbenv = dbp->dbenv;
	dbp->set_errfile(dbp, stderr);

	DB_BENCH_ASSERT(dbp->set_pagesize(dbp, pagesize) == 0);
	DB_BENCH_ASSERT(dbp->open(
	    dbp, NULL, NULL, NULL, DB_BTREE, DB_CREATE, 0666) == 0);

	(void)dbenv->memp_stat(dbenv, &gsp, NULL, DB_STAT_CLEAR);

	if (update) {
		TIMER_START;
		for (; ops > 0; --ops) {
			keybuf[(ops % keysize)] = letters[(ops % 26)];
			DB_BENCH_ASSERT(
			    dbp->put(dbp, NULL, &key, &data, 0) == 0);
		}
		TIMER_STOP;
	} else {
		DB_BENCH_ASSERT(dbp->put(dbp, NULL, &key, &data, 0) == 0);
		TIMER_START;
		for (; ops > 0; --ops)
			DB_BENCH_ASSERT(
			    dbp->get(dbp, NULL, &key, &data, 0) == 0);
		TIMER_STOP;
	}

	if (dbenv->memp_stat(dbenv, &gsp, NULL, 0) == 0)
		DB_BENCH_ASSERT(gsp->st_cache_miss == 0);

	DB_BENCH_ASSERT(dbp->close(dbp, 0) == 0);
}
开发者ID:kanbang，项目名称:Colt，代码行数:55，代码来源:b_inmem.c

示例2: malloc

static void
b_inmem_op_ds_bulk(u_int ops, u_int *totalp)
{
	DB_ENV *dbenv;
	DB *dbp;
	DBC *dbc;
	DBT key, data;
	u_int32_t len, klen;
	u_int i, total;
	char *keybuf, *databuf;
	void *pointer, *dp, *kp;
	DB_MPOOL_STAT  *gsp;

	DB_BENCH_ASSERT((keybuf = malloc(keysize)) != NULL);
	DB_BENCH_ASSERT((databuf = malloc(bulkbufsize)) != NULL);

	memset(&key, 0, sizeof(key));
	memset(&data, 0, sizeof(data));
	key.data = keybuf;
	key.size = keysize;

	data.data = databuf;
	data.size = datasize;
	memset(databuf, 'b', datasize);

	DB_BENCH_ASSERT(db_create(&dbp, NULL, 0) == 0);
	dbenv = dbp->dbenv;
	dbp->set_errfile(dbp, stderr);

	DB_BENCH_ASSERT(dbp->set_pagesize(dbp, pagesize) == 0);
	DB_BENCH_ASSERT(dbp->set_cachesize(dbp, 0, cachesize, 1) == 0);
	DB_BENCH_ASSERT(
	    dbp->open(dbp, NULL, NULL, NULL, DB_BTREE, DB_CREATE, 0666) == 0);

	for (i = 1; i <= numitems; ++i) {
		(void)snprintf(keybuf, keysize, "%7d", i);
		DB_BENCH_ASSERT(dbp->put(dbp, NULL, &key, &data, 0) == 0);
	}

#if 0
	fp = fopen("before", "w");
	dbp->set_msgfile(dbp, fp);
	DB_BENCH_ASSERT (dbp->stat_print(dbp, DB_STAT_ALL) == 0);
#endif

	DB_BENCH_ASSERT(dbp->cursor(dbp, NULL, &dbc, 0) == 0);

	data.ulen = bulkbufsize;
	data.flags = DB_DBT_USERMEM;

	(void)dbenv->memp_stat(dbenv, &gsp, NULL, DB_STAT_CLEAR);

	TIMER_START;
	for (total = 0; ops > 0; --ops) {
		DB_BENCH_ASSERT(dbc->c_get(
		    dbc, &key, &data, DB_FIRST | DB_MULTIPLE_KEY) == 0);
		DB_MULTIPLE_INIT(pointer, &data);
		while (pointer != NULL) {
			DB_MULTIPLE_KEY_NEXT(pointer, &data, kp, klen, dp, len);
			if (kp != NULL)
				++total;
		}
	}
	TIMER_STOP;
	*totalp = total;

	if (dbenv->memp_stat(dbenv, &gsp, NULL, 0) == 0)
	    DB_BENCH_ASSERT(gsp->st_cache_miss == 0);

#if 0
	fp = fopen("before", "w");
	dbp->set_msgfile(dbp, fp);
	DB_BENCH_ASSERT (dbp->stat_print(dbp, DB_STAT_ALL) == 0);
#endif

	DB_BENCH_ASSERT(dbp->close(dbp, 0) == 0);

	COMPQUIET(dp, NULL);
	COMPQUIET(klen, 0);
	COMPQUIET(len, 0);
}
开发者ID:AdeebNqo，项目名称:poedit，代码行数:81，代码来源:b_inmem.c

示例3: malloc

void
op_tds(u_int ops, int update, u_int32_t flags)
{
	DB *dbp;
	DBT key, data;
	DB_ENV *dbenv;
	DB_TXN *txn;
	char *keybuf, *databuf;
	DB_MPOOL_STAT  *gsp;

	DB_BENCH_ASSERT((keybuf = malloc(keysize)) != NULL);
	DB_BENCH_ASSERT((databuf = malloc(datasize)) != NULL);

	memset(&key, 0, sizeof(key));
	memset(&data, 0, sizeof(data));
	key.data = keybuf;
	key.size = keysize;
	memset(keybuf, 'a', keysize);

	data.data = databuf;
	data.size = datasize;
	memset(databuf, 'b', datasize);

	DB_BENCH_ASSERT(db_env_create(&dbenv, 0) == 0);

	dbenv->set_errfile(dbenv, stderr);

#ifdef DB_AUTO_COMMIT
	DB_BENCH_ASSERT(dbenv->set_flags(dbenv, DB_AUTO_COMMIT, 1) == 0);
#endif
	DB_BENCH_ASSERT(dbenv->set_flags(dbenv, flags, 1) == 0);
#ifdef DB_LOG_INMEMORY
	if (!(flags & DB_LOG_INMEMORY))
#endif
		DB_BENCH_ASSERT(dbenv->set_lg_max(dbenv, logbufsize * 10) == 0);
	DB_BENCH_ASSERT(dbenv->set_lg_bsize(dbenv, logbufsize) == 0);
	DB_BENCH_ASSERT(dbenv->open(dbenv, "TESTDIR",
	    DB_CREATE | DB_PRIVATE | DB_INIT_LOCK |
	    DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_TXN, 0666) == 0);

	DB_BENCH_ASSERT(db_create(&dbp, dbenv, 0) == 0);
	DB_BENCH_ASSERT(dbp->set_pagesize(dbp, pagesize) == 0);
	DB_BENCH_ASSERT(
	    dbp->open(dbp, NULL, "a", NULL, DB_BTREE, DB_CREATE, 0666) == 0);

	if (update) {
		dbenv->memp_stat(dbenv, &gsp, NULL, DB_STAT_CLEAR);

		TIMER_START;
		for (; ops > 0; --ops)
			DB_BENCH_ASSERT(
			    dbp->put(dbp, NULL, &key, &data, 0) == 0);
		TIMER_STOP;

		dbenv->memp_stat(dbenv, &gsp, NULL, 0);
		DB_BENCH_ASSERT(gsp->st_page_out == 0);
	} else {
		DB_BENCH_ASSERT(dbp->put(dbp, NULL, &key, &data, 0) == 0);
		dbenv->memp_stat(dbenv, &gsp, NULL, DB_STAT_CLEAR);

		TIMER_START;
		for (; ops > 0; --ops) {
			DB_BENCH_ASSERT(
			    dbenv->txn_begin(dbenv, NULL, &txn, 0) == 0);
			DB_BENCH_ASSERT(
			    dbp->get(dbp, NULL, &key, &data, 0) == 0);
			DB_BENCH_ASSERT(txn->commit(txn, 0) == 0);
		}
		TIMER_STOP;

		dbenv->memp_stat(dbenv, &gsp, NULL, 0);
		DB_BENCH_ASSERT(gsp->st_cache_miss == 0);
	}

	DB_BENCH_ASSERT(dbp->close(dbp, 0) == 0);
	DB_BENCH_ASSERT(dbenv->close(dbenv, 0) == 0);
}
开发者ID:HackLinux，项目名称:chandler，代码行数:77，代码来源:inmem.c


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