OpenHiva::SpinOnce

Description

Schedules the group specified by groupName. The subscribed topic is scheduled to process messages in the specified group.

Prototype

uint32_t OpenHiva::SpinOnce(const std::string &groupName)

Parameters

Returns

The return value is of the uint32_t type. If the operation is successful, HIVA_SUCCESS (value being 0) is returned. If other values are returned, the operation fails.

Usage

None

Precautions

• The value of groupName must match the value of groupName of a ScheduleGroup member in the schedGroupVec input parameter of OpenHiva::Init. The value of scheduleType corresponding to groupName must be USER_DEFINED. Otherwise, SpinOnce returns a failure message.
• You are advised not to directly invoke this interface in the main thread. If the message size is too large, page faults may be frequently triggered during interface invoking. As a result, the CPU usage increases sharply. You are advised to start threads for cyclic invoking.