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checkpoint

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This commit is contained in:
Bob Halley
1998-08-18 00:29:57 +00:00
parent 3a6202f163
commit 0dbe3d9c27
3 changed files with 91 additions and 68 deletions
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67
lib/isc/task.c
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@@ -1,4 +1,6 @@
#include "attribute.h"
#include <isc/assertions.h>
#include "task.h"
@@ -24,6 +26,37 @@
#define XTRACE(m)
#endif
/***
*** Tasks.
***/
void *
event_get(mem_context_t mctx, event_type_t type, event_action_t action,
size_t size) {
generic_event_t event;
if (size < sizeof *event)
return (NULL);
event = mem_get(mctx, size);
if (event == NULL)
return (NULL);
event->mctx = mctx;
event->size = size;
event->type = type;
event->action = action;
return (event);
}
void
event_put(void *target) {
generic_event_t event = target;
mem_put(event->mctx, event, event->size);
}
/***
*** Tasks.
***/
@@ -53,9 +86,9 @@ task_free(task_t task) {
}
boolean_t
task_allocate(task_manager_t manager, void *arg,
event_action_t shutdown_action, unsigned int quantum,
task_t *taskp)
task_create(task_manager_t manager, void *arg,
event_action_t shutdown_action, unsigned int quantum,
task_t *taskp)
{
task_t task;
@@ -105,7 +138,7 @@ task_attach(task_t task, task_t *taskp) {
return (TRUE);
}
boolean_t
void
task_detach(task_t *taskp) {
boolean_t free_task = FALSE;
task_manager_t manager;
@@ -132,8 +165,6 @@ task_detach(task_t *taskp) {
task_free(task);
*taskp = NULL;
return (TRUE);
}
boolean_t
@@ -165,7 +196,7 @@ task_send_event(task_t task, generic_event_t event) {
UNLOCK(&task->lock);
if (discard) {
mem_put(event->mctx, event, event->size);
event_put(event);
return (TRUE);
}
@@ -213,7 +244,7 @@ task_send_event(task_t task, generic_event_t event) {
return (TRUE);
}
boolean_t
void
task_shutdown(task_t task) {
boolean_t was_idle = FALSE;
boolean_t discard = FALSE;
@@ -239,7 +270,7 @@ task_shutdown(task_t task) {
UNLOCK(&task->lock);
if (discard)
return (TRUE);
return;
if (was_idle) {
boolean_t need_wakeup = FALSE;
@@ -256,10 +287,18 @@ task_shutdown(task_t task) {
if (need_wakeup)
BROADCAST(&manager->work_available);
}
return (TRUE);
}
void
task_destroy(task_t *taskp) {
REQUIRE(taskp != NULL);
task_shutdown(*taskp);
task_detach(taskp);
}
/***
*** Task Manager.
@@ -403,8 +442,7 @@ void *task_manager_run(void *uap) {
* callback returned.
*/
if (event != NULL)
mem_put(event->mctx, event,
event->size);
event_put(event);
else
wants_shutdown = TRUE;
@@ -465,8 +503,7 @@ void *task_manager_run(void *uap) {
event != NULL;
event = next_event) {
next_event = NEXT(event, link);
mem_put(event->mctx, event,
event->size);
event_put(event);
}
}