C++ pgstat_fetch_stat_beentry函数代码示例

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

在下文中一共展示了pgstat_fetch_stat_beentry函数的17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，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: pg_stat_get_backend_activity_start

Datum
pg_stat_get_backend_activity_start(PG_FUNCTION_ARGS)
{
	PgStat_StatBeEntry *beentry;
	int32		beid;
	AbsoluteTime sec;
	int			usec;
	TimestampTz result;

	beid = PG_GETARG_INT32(0);

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	if (!superuser() && beentry->userid != GetUserId())
		PG_RETURN_NULL();

	sec = beentry->activity_start_sec;
	usec = beentry->activity_start_usec;

	/*
	 * No time recorded for start of current query -- this is the case if
	 * the user hasn't enabled query-level stats collection.
	 */
	if (sec == 0 && usec == 0)
		PG_RETURN_NULL();

	result = AbsoluteTimeUsecToTimestampTz(sec, usec);

	PG_RETURN_TIMESTAMPTZ(result);
}

开发者ID:sunyangkobe，项目名称:cscd43，代码行数:31，代码来源:pgstatfuncs.c

示例2: pg_stat_get_backend_activity

Datum
pg_stat_get_backend_activity(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	text	   *result;
	PgBackendStatus *beentry;
	int			len;
	const char *activity;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		activity = "<backend information not available>";
	else if (!superuser() && beentry->st_userid != GetUserId())
		activity = "<insufficient privilege>";
	else if (*(beentry->st_activity) == '\0')
		activity = "<command string not enabled>";
	else
		activity = beentry->st_activity;

	len = strlen(activity);
	result = palloc(VARHDRSZ + len);
	VARATT_SIZEP(result) = VARHDRSZ + len;
	memcpy(VARDATA(result), activity, len);

	PG_RETURN_TEXT_P(result);
}

开发者ID:rtzassociates，项目名称:postgresql-8.2.23，代码行数:25，代码来源:pgstatfuncs.c

示例3: pg_stat_get_backend_userid

Datum
pg_stat_get_backend_userid(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	PgBackendStatus *beentry;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	PG_RETURN_OID(beentry->st_userid);
}

开发者ID:BALDELab，项目名称:incubator-hawq，代码行数:11，代码来源:pgstatfuncs.c

示例4: pg_stat_get_backend_userid

Datum
pg_stat_get_backend_userid(PG_FUNCTION_ARGS)
{
	PgStat_StatBeEntry *beentry;
	int32		beid;

	beid = PG_GETARG_INT32(0);

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	PG_RETURN_INT32(beentry->userid);
}

开发者ID:sunyangkobe，项目名称:cscd43，代码行数:13，代码来源:pgstatfuncs.c

示例5: pg_stat_get_backend_client_port

Datum
pg_stat_get_backend_client_port(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	PgBackendStatus *beentry;
	SockAddr	zero_clientaddr;
	char		remote_port[NI_MAXSERV];
	int			ret;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	if (!superuser() && beentry->st_userid != GetUserId())
		PG_RETURN_NULL();

	/* A zeroed client addr means we don't know */
	memset(&zero_clientaddr, 0, sizeof(zero_clientaddr));
	if (memcmp(&(beentry->st_clientaddr), &zero_clientaddr,
			   sizeof(zero_clientaddr) == 0))
		PG_RETURN_NULL();

	switch (beentry->st_clientaddr.addr.ss_family)
	{
		case AF_INET:
#ifdef HAVE_IPV6
		case AF_INET6:
#endif
			break;
		case AF_UNIX:
			PG_RETURN_INT32(-1);
		default:
			PG_RETURN_NULL();
	}

	remote_port[0] = '\0';
	ret = pg_getnameinfo_all(&beentry->st_clientaddr.addr,
							 beentry->st_clientaddr.salen,
							 NULL, 0,
							 remote_port, sizeof(remote_port),
							 NI_NUMERICHOST | NI_NUMERICSERV);
	if (ret)
		PG_RETURN_NULL();

	PG_RETURN_DATUM(DirectFunctionCall1(int4in,
										CStringGetDatum(remote_port)));
}

开发者ID:BALDELab，项目名称:incubator-hawq，代码行数:46，代码来源:pgstatfuncs.c

示例6: pg_stat_get_backend_client_addr

Datum
pg_stat_get_backend_client_addr(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	PgBackendStatus *beentry;
	SockAddr	zero_clientaddr;
	char		remote_host[NI_MAXHOST];
	int			ret;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	if (!has_privs_of_role(GetUserId(), beentry->st_userid))
		PG_RETURN_NULL();

	/* A zeroed client addr means we don't know */
	memset(&zero_clientaddr, 0, sizeof(zero_clientaddr));
	if (memcmp(&(beentry->st_clientaddr), &zero_clientaddr,
			   sizeof(zero_clientaddr)) == 0)
		PG_RETURN_NULL();

	switch (beentry->st_clientaddr.addr.ss_family)
	{
		case AF_INET:
#ifdef HAVE_IPV6
		case AF_INET6:
#endif
			break;
		default:
			PG_RETURN_NULL();
	}

	remote_host[0] = '\0';
	ret = pg_getnameinfo_all(&beentry->st_clientaddr.addr,
							 beentry->st_clientaddr.salen,
							 remote_host, sizeof(remote_host),
							 NULL, 0,
							 NI_NUMERICHOST | NI_NUMERICSERV);
	if (ret != 0)
		PG_RETURN_NULL();

	clean_ipv6_addr(beentry->st_clientaddr.addr.ss_family, remote_host);

	PG_RETURN_INET_P(DirectFunctionCall1(inet_in,
										 CStringGetDatum(remote_host)));
}

开发者ID:EccentricLoggers，项目名称:peloton，代码行数:46，代码来源:pgstatfuncs.cpp

示例7: pg_stat_get_backend_waiting

Datum
pg_stat_get_backend_waiting(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	bool		result;
	PgBackendStatus *beentry;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	if (!superuser() && beentry->st_userid != GetUserId())
		PG_RETURN_NULL();

	result = beentry->st_waiting;

	PG_RETURN_BOOL(result);
}

开发者ID:BALDELab，项目名称:incubator-hawq，代码行数:17，代码来源:pgstatfuncs.c

示例8: pg_stat_get_backend_activity

Datum
pg_stat_get_backend_activity(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	PgBackendStatus *beentry;
	const char *activity;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		activity = "<backend information not available>";
	else if (!superuser() && beentry->st_userid != GetUserId())
		activity = "<insufficient privilege>";
	else if (*(beentry->st_activity) == '\0')
		activity = "<command string not enabled>";
	else
		activity = beentry->st_activity;

	PG_RETURN_TEXT_P(cstring_to_text(activity));
}

开发者ID:BALDELab，项目名称:incubator-hawq，代码行数:18，代码来源:pgstatfuncs.c

示例9: pg_stat_get_db_numbackends

Datum
pg_stat_get_db_numbackends(PG_FUNCTION_ARGS)
{
	Oid			dbid = PG_GETARG_OID(0);
	int32		result;
	int			tot_backends = pgstat_fetch_stat_numbackends();
	int			beid;

	result = 0;
	for (beid = 1; beid <= tot_backends; beid++)
	{
		PgBackendStatus *beentry = pgstat_fetch_stat_beentry(beid);

		if (beentry && beentry->st_databaseid == dbid)
			result++;
	}

	PG_RETURN_INT32(result);
}

开发者ID:BALDELab，项目名称:incubator-hawq，代码行数:19，代码来源:pgstatfuncs.c

示例10: pg_stat_get_backend_start

Datum
pg_stat_get_backend_start(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	TimestampTz result;
	PgBackendStatus *beentry;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	if (!superuser() && beentry->st_userid != GetUserId())
		PG_RETURN_NULL();

	result = beentry->st_proc_start_timestamp;

	if (result == 0)			/* probably can't happen? */
		PG_RETURN_NULL();

	PG_RETURN_TIMESTAMPTZ(result);
}

开发者ID:BALDELab，项目名称:incubator-hawq，代码行数:20，代码来源:pgstatfuncs.c

示例11: pg_stat_get_backend_xact_start

Datum
pg_stat_get_backend_xact_start(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	TimestampTz result;
	PgBackendStatus *beentry;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	if (!has_privs_of_role(GetUserId(), beentry->st_userid))
		PG_RETURN_NULL();

	result = beentry->st_xact_start_timestamp;

	if (result == 0)			/* not in a transaction */
		PG_RETURN_NULL();

	PG_RETURN_TIMESTAMPTZ(result);
}

开发者ID:EccentricLoggers，项目名称:peloton，代码行数:20，代码来源:pgstatfuncs.cpp

示例12: pg_stat_get_backend_waiting_reason

Datum
pg_stat_get_backend_waiting_reason(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	PgBackendStatus *beentry;
	char	   *result;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	if (!superuser() && beentry->st_userid != GetUserId())
		PG_RETURN_NULL();

	result = pgstat_waiting_string(beentry->st_waiting);

	/* waiting for nothing */
	if (result == NULL)
		PG_RETURN_NULL();

	PG_RETURN_DATUM(CStringGetTextDatum(result));
}

开发者ID:50wu，项目名称:gpdb，代码行数:21，代码来源:pgstatfuncs.c

示例13: pg_stat_get_backend_wait_event_type

Datum
pg_stat_get_backend_wait_event_type(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	PgBackendStatus *beentry;
	PGPROC	   *proc;
	const char *wait_event_type;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		wait_event_type = "<backend information not available>";
	else if (!has_privs_of_role(GetUserId(), beentry->st_userid))
		wait_event_type = "<insufficient privilege>";
	else
	{
		proc = BackendPidGetProc(beentry->st_procpid);
		wait_event_type = pgstat_get_wait_event_type(proc->wait_event_info);
	}

	if (!wait_event_type)
		PG_RETURN_NULL();

	PG_RETURN_TEXT_P(cstring_to_text(wait_event_type));
}

开发者ID:BenjaminYu，项目名称:postgres，代码行数:23，代码来源:pgstatfuncs.c

示例14: pg_stat_get_backend_activity

Datum
pg_stat_get_backend_activity(PG_FUNCTION_ARGS)
{
	PgStat_StatBeEntry *beentry;
	int32		beid;
	int			len;
	text	   *result;

	beid = PG_GETARG_INT32(0);

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	if (!superuser() && beentry->userid != GetUserId())
		PG_RETURN_NULL();

	len = strlen(beentry->activity);
	result = palloc(VARHDRSZ + len);
	VARATT_SIZEP(result) = VARHDRSZ + len;
	memcpy(VARDATA(result), beentry->activity, len);

	PG_RETURN_TEXT_P(result);
}

开发者ID:sunyangkobe，项目名称:cscd43，代码行数:23，代码来源:pgstatfuncs.c

示例15: pg_stat_get_backend_activity_start

Datum
pg_stat_get_backend_activity_start(PG_FUNCTION_ARGS)
{
	int32		beid = PG_GETARG_INT32(0);
	TimestampTz result;
	PgBackendStatus *beentry;

	if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
		PG_RETURN_NULL();

	if (!superuser() && beentry->st_userid != GetUserId())
		PG_RETURN_NULL();

	result = beentry->st_activity_start_timestamp;

	/*
	 * No time recorded for start of current query -- this is the case if the
	 * user hasn't enabled query-level stats collection.
	 */
	if (result == 0)
		PG_RETURN_NULL();

	PG_RETURN_TIMESTAMPTZ(result);
}

开发者ID:BALDELab，项目名称:incubator-hawq，代码行数:24，代码来源:pgstatfuncs.c

示例16: pg_stat_get_activity

Datum
pg_stat_get_activity(PG_FUNCTION_ARGS)
{
	FuncCallContext *funcctx;

	if (SRF_IS_FIRSTCALL())
	{
		MemoryContext oldcontext;
		TupleDesc	tupdesc;

		funcctx = SRF_FIRSTCALL_INIT();

		oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);

		tupdesc = CreateTemplateTupleDesc(13, false);
		TupleDescInitEntry(tupdesc, (AttrNumber) 1, "datid", OIDOID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 2, "procpid", INT4OID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 3, "usesysid", OIDOID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 4, "application_name", TEXTOID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 5, "current_query", TEXTOID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 6, "waiting", BOOLOID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 7, "act_start", TIMESTAMPTZOID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 8, "query_start", TIMESTAMPTZOID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 9, "backend_start", TIMESTAMPTZOID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 10, "client_addr", INETOID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 11, "client_port", INT4OID, -1, 0);
		TupleDescInitEntry(tupdesc, (AttrNumber) 12, "sess_id", INT4OID, -1, 0);  /* GPDB */
		TupleDescInitEntry(tupdesc, (AttrNumber) 13, "waiting_resource", BOOLOID, -1, 0);

		funcctx->tuple_desc = BlessTupleDesc(tupdesc);

		funcctx->user_fctx = palloc0(sizeof(int));
		if (PG_ARGISNULL(0))
		{
			/* Get all backends */
			funcctx->max_calls = pgstat_fetch_stat_numbackends();
		}
		else
		{
			/*
			 * Get one backend - locate by pid.
			 *
			 * We lookup the backend early, so we can return zero rows if it
			 * doesn't exist, instead of returning a single row full of NULLs.
			 */
			int			pid = PG_GETARG_INT32(0);
			int			i;
			int			n = pgstat_fetch_stat_numbackends();

			for (i = 1; i <= n; i++)
			{
				PgBackendStatus *be = pgstat_fetch_stat_beentry(i);

				if (be)
				{
					if (be->st_procpid == pid)
					{
						*(int *) (funcctx->user_fctx) = i;
						break;
					}
				}
			}

			if (*(int *) (funcctx->user_fctx) == 0)
				/* Pid not found, return zero rows */
				funcctx->max_calls = 0;
			else
				funcctx->max_calls = 1;
		}

		MemoryContextSwitchTo(oldcontext);
	}

	/* stuff done on every call of the function */
	funcctx = SRF_PERCALL_SETUP();

	if (funcctx->call_cntr < funcctx->max_calls)
	{
		/* for each row */
		Datum		values[13];
		bool		nulls[13];
		HeapTuple	tuple;
		PgBackendStatus *beentry;
		SockAddr	zero_clientaddr;

		MemSet(values, 0, sizeof(values));
		MemSet(nulls, 0, sizeof(nulls));

		if (*(int *) (funcctx->user_fctx) > 0)
		{
			/* Get specific pid slot */
			beentry = pgstat_fetch_stat_beentry(*(int *) (funcctx->user_fctx));
		}
		else
		{
			/* Get the next one in the list */
			beentry = pgstat_fetch_stat_beentry(funcctx->call_cntr + 1);		/* 1-based index */
		}
		if (!beentry)
		{
//.........这里部分代码省略.........

开发者ID:BALDELab，项目名称:incubator-hawq，代码行数:101，代码来源:pgstatfuncs.c

示例17: pg_stat_get_activity

/*
 * Returns activity of PG backends.
 */
Datum
pg_stat_get_activity(PG_FUNCTION_ARGS)
{
#define PG_STAT_GET_ACTIVITY_COLS	22
	int					num_backends = pgstat_fetch_stat_numbackends();
	int					curr_backend;
	int					pid = PG_ARGISNULL(0) ? -1 : PG_GETARG_INT32(0);
	ReturnSetInfo	   *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
	TupleDesc			tupdesc;
	Tuplestorestate	   *tupstore;
	MemoryContext		per_query_ctx;
	MemoryContext		oldcontext;

	/* check to see if caller supports us returning a tuplestore */
	if (rsinfo == NULL || !IsA(rsinfo, ReturnSetInfo))
		ereport(ERROR,
				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
				 errmsg("set-valued function called in context that cannot accept a set")));
	if (!(rsinfo->allowedModes & SFRM_Materialize))
		ereport(ERROR,
				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
				 errmsg("materialize mode required, but it is not " \
						"allowed in this context")));

	/* Build a tuple descriptor for our result type */
	if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
		elog(ERROR, "return type must be a row type");

	per_query_ctx = rsinfo->econtext->ecxt_per_query_memory;
	oldcontext = MemoryContextSwitchTo(per_query_ctx);

	tupstore = tuplestore_begin_heap(true, false, work_mem);
	rsinfo->returnMode = SFRM_Materialize;
	rsinfo->setResult = tupstore;
	rsinfo->setDesc = tupdesc;

	MemoryContextSwitchTo(oldcontext);

	/* 1-based index */
	for (curr_backend = 1; curr_backend <= num_backends; curr_backend++)
	{
		/* for each row */
		Datum		values[PG_STAT_GET_ACTIVITY_COLS];
		bool		nulls[PG_STAT_GET_ACTIVITY_COLS];
		LocalPgBackendStatus *local_beentry;
		PgBackendStatus *beentry;

		MemSet(values, 0, sizeof(values));
		MemSet(nulls, 0, sizeof(nulls));

		if (pid != -1)
		{
			/* Skip any which are not the one we're looking for. */
			PgBackendStatus *be = pgstat_fetch_stat_beentry(curr_backend);

			if (!be || be->st_procpid != pid)
				continue;

		}

		/* Get the next one in the list */
		local_beentry = pgstat_fetch_stat_local_beentry(curr_backend);
		if (!local_beentry)
			continue;

		beentry = &local_beentry->backendStatus;
		if (!beentry)
		{
			int			i;

			for (i = 0; i < sizeof(nulls) / sizeof(nulls[0]); i++)
				nulls[i] = true;

			nulls[5] = false;
			values[5] = CStringGetTextDatum("<backend information not available>");

			tuplestore_putvalues(tupstore, tupdesc, values, nulls);
			continue;
		}

		/* Values available to all callers */
		values[0] = ObjectIdGetDatum(beentry->st_databaseid);
		values[1] = Int32GetDatum(beentry->st_procpid);
		values[2] = ObjectIdGetDatum(beentry->st_userid);
		if (beentry->st_appname)
			values[3] = CStringGetTextDatum(beentry->st_appname);
		else
			nulls[3] = true;

		if (TransactionIdIsValid(local_beentry->backend_xid))
			values[14] = TransactionIdGetDatum(local_beentry->backend_xid);
		else
			nulls[14] = true;

		if (TransactionIdIsValid(local_beentry->backend_xmin))
			values[15] = TransactionIdGetDatum(local_beentry->backend_xmin);
		else
//.........这里部分代码省略.........

开发者ID:EccentricLoggers，项目名称:peloton，代码行数:101，代码来源:pgstatfuncs.cpp

注：本文中的pgstat_fetch_stat_beentry函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，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。

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C++ pgstat_fetch_stat_tabentry函数代码示例发布时间：2022-05-30

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C++ pgstat_fetch_stat_beentry函数代码示例

示例1: pg_stat_get_backend_activity_start

示例2: pg_stat_get_backend_activity

示例3: pg_stat_get_backend_userid

示例4: pg_stat_get_backend_userid

示例5: pg_stat_get_backend_client_port

示例6: pg_stat_get_backend_client_addr

示例7: pg_stat_get_backend_waiting

示例8: pg_stat_get_backend_activity

示例9: pg_stat_get_db_numbackends

示例10: pg_stat_get_backend_start

示例11: pg_stat_get_backend_xact_start

示例12: pg_stat_get_backend_waiting_reason

示例13: pg_stat_get_backend_wait_event_type

示例14: pg_stat_get_backend_activity

示例15: pg_stat_get_backend_activity_start

示例16: pg_stat_get_activity

示例17: pg_stat_get_activity

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