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MINOR: task: add an application specific flag to the state: TASK_F_USR1

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This flag will be usable by any application. It will be preserved across
wakeups so the application can use it to do various stuff. Some I/O
handlers will soon benefit from this.
This commit is contained in:
Willy Tarreau 2021-03-02 16:26:05 +01:00
parent 144f84a09d
commit 6fa8bcdc78
2 changed files with 4 additions and 3 deletions
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3
include/haproxy/task-t.h
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@ -56,7 +56,8 @@
TASK_WOKEN_RES) TASK_WOKEN_RES)
#define TASK_F_TASKLET 0x00008000 /* nature of this task: 0=task 1=tasklet */ #define TASK_F_TASKLET 0x00008000 /* nature of this task: 0=task 1=tasklet */
/* unused: 0x10000..0x80000000 */ #define TASK_F_USR1 0x00010000 /* preserved user flag 1, application-specific, def:0 */
/* unused: 0x20000..0x80000000 */
enum { enum {

4
src/task.c
View File

@ -487,7 +487,7 @@ unsigned int run_tasks_from_lists(unsigned int budgets[])
budgets[queue]--; budgets[queue]--;
t = (struct task *)LIST_ELEM(tl_queues[queue].n, struct tasklet *, list); t = (struct task *)LIST_ELEM(tl_queues[queue].n, struct tasklet *, list);
state = t->state & (TASK_SHARED_WQ|TASK_SELF_WAKING|TASK_HEAVY|TASK_F_TASKLET|TASK_KILLED); state = t->state & (TASK_SHARED_WQ|TASK_SELF_WAKING|TASK_HEAVY|TASK_F_TASKLET|TASK_KILLED|TASK_F_USR1);
ti->flags &= ~TI_FL_STUCK; // this thread is still running ti->flags &= ~TI_FL_STUCK; // this thread is still running
activity[tid].ctxsw++; activity[tid].ctxsw++;
@ -533,7 +533,7 @@ unsigned int run_tasks_from_lists(unsigned int budgets[])
LIST_DEL_INIT(&((struct tasklet *)t)->list); LIST_DEL_INIT(&((struct tasklet *)t)->list);
__ha_barrier_store(); __ha_barrier_store();
state = _HA_ATOMIC_XCHG(&t->state, state | TASK_RUNNING); state = _HA_ATOMIC_XCHG(&t->state, state|TASK_RUNNING|TASK_F_USR1);
__ha_barrier_atomic_store(); __ha_barrier_atomic_store();
/* OK then this is a regular task */ /* OK then this is a regular task */