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Code Issues Releases Wiki Activity

allow tasks to be named and tagged

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This commit is contained in:
Bob Halley
2000-01-25 19:25:20 +00:00
parent bd5a2f2dae
commit a790a11730
2 changed files with 47 additions and 0 deletions
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15
lib/isc/include/isc/task.h
View File

@@ -453,6 +453,21 @@ isc_task_destroy(isc_task_t **taskp);
* All resources used by the task will be freed. * All resources used by the task will be freed.
*/ */
void
isc_task_setname(isc_task_t *task, char *name, void *tag);
/*
* Name 'task'.
*
* Notes:
*
* Only the first 15 characters of 'name' will be copied.
*
* Naming a task is currently only useful for debugging purposes.
*
* Requires:
*
* 'task' is a valid task.
*/
/***** /*****
***** Task Manager. ***** Task Manager.

32
lib/isc/task.c
View File

@@ -26,6 +26,8 @@
#include <config.h> #include <config.h>
#include <string.h>
#include <isc/assertions.h> #include <isc/assertions.h>
#include <isc/boolean.h> #include <isc/boolean.h>
#include <isc/thread.h> #include <isc/thread.h>
@@ -36,6 +38,8 @@
#include <isc/task.h> #include <isc/task.h>
#include <isc/util.h> #include <isc/util.h>
#define ISC_TASK_NAMES 1
#ifdef ISC_TASK_TRACE #ifdef ISC_TASK_TRACE
#define XTRACE(m) printf("task %p thread %lu: %s\n", \ #define XTRACE(m) printf("task %p thread %lu: %s\n", \
task, isc_thread_self(), (m)) task, isc_thread_self(), (m))
@@ -75,6 +79,10 @@ struct isc_task {
isc_eventlist_t on_shutdown; isc_eventlist_t on_shutdown;
unsigned int quantum; unsigned int quantum;
unsigned int flags; unsigned int flags;
#ifdef ISC_TASK_NAMES
char name[16];
void * tag;
#endif
/* Locked by task manager lock. */ /* Locked by task manager lock. */
LINK(isc_task_t) link; LINK(isc_task_t) link;
LINK(isc_task_t) ready_link; LINK(isc_task_t) ready_link;
@@ -170,6 +178,10 @@ isc_task_create(isc_taskmgr_t *manager, isc_mem_t *mctx, unsigned int quantum,
INIT_LIST(task->on_shutdown); INIT_LIST(task->on_shutdown);
task->quantum = quantum; task->quantum = quantum;
task->flags = 0; task->flags = 0;
#ifdef ISC_TASK_NAMES
task->name[0] = '\0';
task->tag = NULL;
#endif
INIT_LINK(task, link); INIT_LINK(task, link);
INIT_LINK(task, ready_link); INIT_LINK(task, ready_link);
@@ -664,7 +676,27 @@ isc_task_destroy(isc_task_t **taskp) {
isc_task_detach(taskp); isc_task_detach(taskp);
} }
void
isc_task_setname(isc_task_t *task, char *name, void *tag) {
/*
* Name 'task'.
*/
REQUIRE(VALID_TASK(task));
#ifdef ISC_TASK_NAMES
LOCK(&task->lock);
memset(task->name, 0, sizeof(task->name));
strncpy(task->name, name, sizeof(task->name) - 1);
task->tag = tag;
UNLOCK(&task->lock);
#else
(void)name;
(void)tag;
#endif
}
/*** /***
*** Task Manager. *** Task Manager.