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try to better handle signal for teams

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18885 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval
2006-09-18 22:51:07 +00:00
parent b8759025a9
commit 46a7b50c3b
1 changed files with 42 additions and 33 deletions
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src/system/kernel/signal.c
+42 -33
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@@ -291,7 +291,7 @@ send_signal_etc(pid_t id, uint signal, uint32 flags)
return B_BAD_VALUE;
state = disable_interrupts();
if (id > 0) {
// send a signal to the specified thread
@@ -304,43 +304,52 @@ send_signal_etc(pid_t id, uint signal, uint32 flags)
// send a signal to the specified process group
// (the absolute value of the id)
struct team *team = thread_get_current_thread()->team;
struct process_group *group;
struct team *team = NULL;
// TODO: handle -1 correctly
if (id == 0 || id == -1) {
// send a signal to the current team
id = thread_get_current_thread()->team->main_thread->id;
} else
team = thread_get_current_thread()->team;
id = team->main_thread->id;
} else {
id = -id;
GRAB_TEAM_LOCK();
group = team_get_process_group_locked(team, id);
if (group != NULL) {
struct team *team, *next;
// we need a safe way to get from the thread to the process group
// XXX whats this? id = thread->team->id;
for (team = group->teams; team != NULL; team = next) {
next = team->group_next;
id = team->main_thread->id;
GRAB_THREAD_LOCK();
thread = thread_get_thread_struct_locked(id);
if (thread != NULL) {
// we don't stop because of an error sending the signal; we
// rather want to send as much signals as possible
status = deliver_signal(thread, signal, flags);
}
RELEASE_THREAD_LOCK();
}
GRAB_THREAD_LOCK();
thread = thread_get_thread_struct_locked(id);
if (thread)
team = thread->team;
RELEASE_THREAD_LOCK();
}
if (team != NULL) {
struct process_group *group;
GRAB_TEAM_LOCK();
group = team_get_process_group_locked(team, id);
if (group != NULL) {
struct team *team, *next;
// we need a safe way to get from the thread to the process group
for (team = group->teams; team != NULL; team = next) {
next = team->group_next;
id = team->main_thread->id;
GRAB_THREAD_LOCK();
thread = thread_get_thread_struct_locked(id);
if (thread != NULL) {
// we don't stop because of an error sending the signal; we
// rather want to send as much signals as possible
status = deliver_signal(thread, signal, flags);
}
RELEASE_THREAD_LOCK();
}
}
RELEASE_TEAM_LOCK();
}
RELEASE_TEAM_LOCK();
GRAB_THREAD_LOCK();
}