harmony 鸿蒙swtmr
swtmr
Command Function
This command is used to query information about system software timers.
Syntax
swtmr [ID]
Parameters
Table 1 Parameter description
Parameter | Description | Value Range |
---|---|---|
ID | Specifies the ID of a software timer. | [0, 0xFFFFFFFF] |
Usage Guidelines
If no parameter is specified, information about all software timers is displayed.
If the ID parameter is specified, information about the specified software timer is displayed.
Example
Run the following commands:
swtmr
swtmr 1
Output
Example 1: information about all software timers
OHOS # swtmr
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000000 Ticking Period 100 77 0x40802a50 0x4037b8a0
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000001 Ticking Period 1000 876 0x00000000 0x4037fc04
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000002 Ticking Period 100 76 0x00000000 0x403727f4
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000016 Ticking NSD 10 6 0x8021e000 0x401fe7d8
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000079 Ticking NSD 30000 1749 0x406189d8 0x40160e1c
Example 2: information about software timer 1
OHOS # swtmr 1
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000001 Ticking Period 1000 841 0x00000000 0x4037fc04
Table 2 Output description
Parameter | Description |
---|---|
SwTmrID | ID of the software timer. |
State | Status of the software timer. The status may be UnUsed, Created, or Ticking. |
Mode | Mode of the software timer. The value can be Once, Period, or NSD (one-shot timer that will not be automatically deleted after the timer has expired). |
Interval | Number of ticks for the software timer. |
Count | Number of times that the software timer has been used. |
Arg | Input parameter. |
handlerAddr | Address of the callback. |
NOTE
- The ID value can be in decimal or hexadecimal format.
- If the ID value is within the range of [0, Number of current software timers - 1], the status of the specified software timer is returned. Otherwise, an error code is returned.
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