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Add framework to support task groups

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git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5562 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2013-01-25 17:23:38 +00:00
parent b6472b58dc
commit e95efd5d2a
20 changed files with 681 additions and 145 deletions
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nuttx/sched/pthread_create.c
+28 -15
View File
@@ -251,6 +251,7 @@ int pthread_create(FAR pthread_t *thread, FAR pthread_attr_t *attr,
#if CONFIG_RR_INTERVAL > 0
int policy;
#endif
int errcode;
pid_t pid;
/* If attributes were not supplied, use the default attributes */
@@ -268,6 +269,12 @@ int pthread_create(FAR pthread_t *thread, FAR pthread_attr_t *attr,
return ENOMEM;
}
/* Join the parent's task group */
#ifdef HAVE_TASK_GROUP
group_join(ptcb);
#endif
/* Share the address environment of the parent task. NOTE: Only tasks
* created throught the nuttx/binfmt loaders may have an address
* environment.
@@ -277,8 +284,8 @@ int pthread_create(FAR pthread_t *thread, FAR pthread_attr_t *attr,
ret = up_addrenv_share((FAR const _TCB *)g_readytorun.head, ptcb);
if (ret < 0)
{
sched_releasetcb(ptcb);
return -ret;
errcode = -ret;
goto errout_with_tcb;
}
#endif
@@ -287,8 +294,8 @@ int pthread_create(FAR pthread_t *thread, FAR pthread_attr_t *attr,
ret = sched_setuppthreadfiles(ptcb);
if (ret != OK)
{
sched_releasetcb(ptcb);
return ret;
errcode = ret;
goto errout_with_tcb;
}
/* Share the parent's envionment */
@@ -300,8 +307,8 @@ int pthread_create(FAR pthread_t *thread, FAR pthread_attr_t *attr,
pjoin = (FAR join_t*)kzalloc(sizeof(join_t));
if (!pjoin)
{
sched_releasetcb(ptcb);
return ENOMEM;
errcode = ENOMEM;
goto errout_with_tcb;
}
/* Allocate the stack for the TCB */
@@ -309,9 +316,8 @@ int pthread_create(FAR pthread_t *thread, FAR pthread_attr_t *attr,
ret = up_create_stack(ptcb, attr->stacksize);
if (ret != OK)
{
sched_releasetcb(ptcb);
sched_free(pjoin);
return ENOMEM;
errcode = ENOMEM;
goto errout_with_join;
}
/* Should we use the priority and scheduler specified in the
@@ -360,9 +366,8 @@ int pthread_create(FAR pthread_t *thread, FAR pthread_attr_t *attr,
TCB_FLAG_TTYPE_PTHREAD);
if (ret != OK)
{
sched_releasetcb(ptcb);
sched_free(pjoin);
return EBUSY;
errcode = EBUSY;
goto errout_with_join;
}
/* Configure the TCB for a pthread receiving on parameter
@@ -440,10 +445,18 @@ int pthread_create(FAR pthread_t *thread, FAR pthread_attr_t *attr,
dq_rem((FAR dq_entry_t*)ptcb, (dq_queue_t*)&g_inactivetasks);
(void)sem_destroy(&pjoin->data_sem);
(void)sem_destroy(&pjoin->exit_sem);
sched_releasetcb(ptcb);
sched_free(pjoin);
ret = EIO;
errcode = EIO;
goto errout_with_join;
}
return ret;
errout_with_join:
sched_free(pjoin);
ptcb->joininfo = NULL;
errout_with_tcb:
sched_releasetcb(ptcb);
return errcode;
}