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sched: Remove all group id related stuff

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it is wrong to define a new grpid_t, but not reuse pid_t,
because it make getpid(parent) == getppid(child) impossible.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao
2021-03-04 01:11:40 +08:00
committed by liuguo09
parent 0a797f1e8b
commit 90be95bb89
13 changed files with 43 additions and 294 deletions
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include/nuttx/sched.h
+4 -22
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@@ -362,12 +362,6 @@ struct pthread_cleanup_s
# endif
#endif
/* type grpid_t *****************************************************************/
/* The task group ID */
typedef int16_t grpid_t;
/* struct dspace_s **************************************************************/
/* This structure describes a reference counted D-Space region. This must be a
@@ -466,14 +460,9 @@ struct task_group_s
{
#if defined(HAVE_GROUP_MEMBERS) || defined(CONFIG_ARCH_ADDRENV)
struct task_group_s *flink; /* Supports a singly linked list */
grpid_t tg_grpid; /* The ID of this task group */
#endif
#ifdef HAVE_GROUP_MEMBERS
grpid_t tg_pgrpid; /* The ID of the parent task group */
#endif
#if !defined(CONFIG_DISABLE_PTHREAD) && defined(CONFIG_SCHED_HAVE_PARENT)
pid_t tg_task; /* The ID of the task within the group */
#endif
pid_t tg_pid; /* The ID of the task within the group */
pid_t tg_ppid; /* This is the ID of the parent thread */
uint8_t tg_flags; /* See GROUP_FLAG_* definitions */
/* User identity **************************************************************/
@@ -508,16 +497,9 @@ struct task_group_s
#ifdef CONFIG_SCHED_CHILD_STATUS
FAR struct child_status_s *tg_children; /* Head of a list of child status */
#else
uint16_t tg_nchildren; /* This is the number active children */
#endif
#ifndef HAVE_GROUP_MEMBERS
/* REVISIT: What if parent thread exits? Should use tg_pgrpid. */
pid_t tg_ppid; /* This is the ID of the parent thread */
#ifndef CONFIG_SCHED_CHILD_STATUS
uint16_t tg_nchildren; /* This is the number active children */
#endif
#endif /* HAVE_GROUP_MEMBERS */
#endif /* CONFIG_SCHED_HAVE_PARENT */
#if defined(CONFIG_SCHED_WAITPID) && !defined(CONFIG_SCHED_HAVE_PARENT)