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Don't keep the parent task's task ID in the child task's TCB. Instead, keep the parent task group IN the child task's task group.

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5566 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2013-01-26 17:28:20 +00:00
parent 0cefbf4762
commit fc8136d5d3
16 changed files with 937 additions and 228 deletions
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include/nuttx/sched.h
+11 -1
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@@ -95,6 +95,7 @@
#define TCB_FLAG_NONCANCELABLE (1 << 2) /* Bit 2: Pthread is non-cancelable */
#define TCB_FLAG_CANCEL_PENDING (1 << 3) /* Bit 3: Pthread cancel is pending */
#define TCB_FLAG_ROUND_ROBIN (1 << 4) /* Bit 4: Round robin sched enabled */
#define TCB_FLAG_EXIT_PROCESSING (1 << 5) /* Bit 5: Exitting */
/* Values for struct task_group tg_flags */
@@ -253,6 +254,11 @@ struct dspace_s
#ifdef HAVE_TASK_GROUP
struct task_group_s
{
#ifdef HAVE_GROUP_MEMBERS
struct task_group_s *flink; /* Supports a singly linked list */
gid_t tg_gid; /* The ID of this task group */
gid_t tg_pgid; /* The ID of the parent task group */
#endif
uint8_t tg_flags; /* See GROUP_FLAG_* definitions */
/* Group membership ***********************************************************/
@@ -311,12 +317,16 @@ struct _TCB
/* Task Management Fields *****************************************************/
pid_t pid; /* This is the ID of the thread */
#ifdef CONFIG_SCHED_HAVE_PARENT /* Support parent-child relationship */
pid_t parent; /* This is the ID of the parent thread */
#ifndef HAVE_GROUP_MEMBERS /* Don't know pids of group members */
pid_t ppid; /* This is the ID of the parent thread */
#ifndef CONFIG_SCHED_CHILD_STATUS /* Retain child thread status */
uint16_t nchildren; /* This is the number active children */
#endif
#endif
#endif /* CONFIG_SCHED_HAVE_PARENT */
start_t start; /* Thread start function */
entry_t entry; /* Entry Point into the thread */