kal.h

Overview

Related Modules:

KAL

Description:

Defines the kernel adaptation layer (KAL), which provides compatible interfaces across different types of OpenHarmony devices.

Since:

1.0

Version:

1.0

Summary

Data Structures

Data Structure Name Description
ThreadInfo Describes a thread.
MemInfo Describes a memory pool.

Macros

Macro Name and Value Description
KAL_TASK_NAME_LEN 32 Indicates the maximum length of a thread name.

Enumerations

Enumeration Name Description
KalTimerType { KAL_TIMER_ONCE = 0, KAL_TIMER_PERIODIC = 1 } Enumerates timer types.
KalErrCode { KAL_OK = 0, KAL_ERR_PARA = 1, KAL_ERR_INNER = 2, KAL_ERR_TIMER_STATE = 0x100 } Enumerates return values of the KAL function.

Functions

Function Name Description
KalThreadGetInfo (unsigned int threadId, ThreadInfo info) unsigned int Obtains thread information.
KalDelayUs (unsigned int us) void Delays a thread.
KalTimerCreate (KalTimerProc func, KalTimerType type, void arg, unsigned int ticks) KalTimerId Creates a timer.
KalTimerStart (KalTimerId timerId) KalErrCode Starts a timer.
KalTimerChange (KalTimerId timerId, unsigned int ticks) KalErrCode Changes the duration of a timer.
KalTimerStop (KalTimerId timerId) KalErrCode Stops a timer.
KalTimerDelete (KalTimerId timerId) KalErrCode Deletes a timer.
KalTimerIsRunning (KalTimerId timerId) unsigned int Checks whether a timer is running.
KalTickToMs (unsigned int ticks) unsigned int Converts system ticks into milliseconds.
KalMsToTick (unsigned int millisec) unsigned int Converts milliseconds into system ticks.
KalGetMemInfo (MemInfo *pmemInfo) KalErrCode Obtains memory information.