eventset
展示事件集信息。
格式
eventset eventset handle
说明
[root@sylixos:/root]# help eventset
show eventset information.
eventset eventset handle
[root@sylixos:/root]#
此命令用于显示事件集的相关信息。
样例
使用SylixOS事件集操作函数编写程序，打印事件集ID号。
[root@sylixos:/apps/event_test]# ./event_test &
[root@sylixos:/apps/event_test]# tp
thread pending show >>
NAME TID PID STAT DELAY PEND EVENT OWNER
---------------- ------- ----- ---- ---------- ----------------------- -------
t_itimer 4000001 0 SLP 82045 0:
t_isrdefer 4000002 0 SEM 0 10000002:job_sync
t_except 4000003 0 SEM 0 10000003:job_sync
t_log 4000004 0 MSGQ 0 1c000004:log_msg:R
t_power 4000005 0 SLP 257 0:
t_hotplug 4000006 0 SEM 256 10000015:job_sync
t_reclaim 4000008 0 MSGQ 0 1c000021:res_reclaim:R
t_sync 4000009 0 SLP 214 0:
t_dcwpipe 400000a 0 SEM 0 c00005c:dc_mq
t_tpsfs 400000b 0 SLP 201 0:
t_console 400000c 0 MSGQ 0 1c0000cc:xkbd_q:R
t_netjob 400000d 0 SEM 0 10000088:job_sync
t_netproto 400000e 0 MSGQ 11 1c00008c:net_msg:R
t_snmp 400000f 0 MSGQ 0 1c00009c:net_msg:R
t_ftpd 4000010 0 MSGQ 0 1c0000c1:net_msg:R
t_telnetd 4000011 0 MSGQ 0 1c0000c2:net_msg:R
t_jobq 4000013 0 SEM 0 100000b8:job_sync
t_xinput 4000015 0 SEM 0 100000d2:sel_wakeup
t_xcondev 4000016 0 MSGQ 0 1c0000d7:xcon_cq:R
main.jsc 4000017 1 SEM 0 100000e0:sel_wakeup
t_tshell 400001a 0 SEM 0 10000040:ty_rsync
jsre_timer 400001b 1 VUTX 187 f122940:2626
imgpull.jsc 400001c 1 SEM 0 10000224:sel_wakeup
assistant.jsc 400001d 1 SEM 0 10000276:sel_wakeup
event_test 400002e 10 JOIN 0 400002f:t_testa
t_testa 400002f 10 ENTS 0 20000006:event_set
t_testb 4000030 10 SLP 195 0:
pending thread: 27
[root@sylixos:/apps/event_test]# eventset 20000006
event set show >>
event set name : event_set
event set event : 0xffffffff00000000
[root@sylixos:/apps/event_test]#
字段说明：
| 字段 | 说明 |
|---|---|
| event set name | 事件集名 |
| event set event | 事件集当前事件 |
event_test 示例代码：
下面程序展示了 SylixOS 事件集的使用，程序创建两个线程和一个 SylixOS 事件集；线程 tTestB 不断地发送 0 到 31 号事件，线程 tTestA 等待事件并不处理事件。
#include <SylixOS.h>
static LW_HANDLE _G_hEventSet;
static PVOID tTestA (PVOID pvArg)
{
INT iError;
ULONG ulEvent;
INT i;
while (1) {
iError = Lw_Event_WaitEx(_G_hEventSet,
LW_OPTION_EVENT_ALL,
LW_OPTION_EVENTSET_WAIT_SET_ANY |
LW_OPTION_EVENTSET_RESET,
LW_OPTION_WAIT_INFINITE,
&ulEvent);
if (iError != ERROR_NONE) {
break;
}
for (i = 0; i < 32; i++) {
if (ulEvent & (1 << i));
}
}
return (LW_NULL);
}
static PVOID tTestB (PVOID pvArg)
{
INT iError;
INT i;
while (1) {
for (i = 0; i < 32; i++) {
iError = Lw_Event_Send(_G_hEventSet, (1 << i), LW_OPTION_EVENTSET_SET);
if (iError != ERROR_NONE) {
return (LW_NULL);
}
Lw_Time_SSleep(1);
}
}
return (LW_NULL);
}
int main (int argc, char *argv[])
{
LW_HANDLE hThreadAId;
LW_HANDLE hThreadBId;
_G_hEventSet = Lw_Event_Create("event_set", 0,
LW_OPTION_WAIT_FIFO |
LW_OPTION_OBJECT_LOCAL,
LW_NULL);
if (_G_hEventSet == LW_OBJECT_HANDLE_INVALID) {
printf("event set create failed.\n");
return (-1);
}
hThreadAId = Lw_Thread_Create("t_testa", tTestA, LW_NULL, LW_NULL);
if (hThreadAId == LW_OBJECT_HANDLE_INVALID) {
printf("t_testa create failed.\n");
return (-1);
}
hThreadBId = Lw_Thread_Create("t_testb", tTestB, LW_NULL, LW_NULL);
if (hThreadBId == LW_OBJECT_HANDLE_INVALID) {
printf("t_testb create failed.\n");
return (-1);
}
Lw_Thread_Join(hThreadAId, LW_NULL);
Lw_Thread_Join(hThreadBId, LW_NULL);
Lw_Event_Delete(&_G_hEventSet);
return (0);
}
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