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signal (part 2) sigpending

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This commit is contained in:
Tomoki Shirasawa
2014-01-07 19:52:06 +09:00
parent a8c249ddaf
commit 0465cc16b9
4 changed files with 200 additions and 55 deletions
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32
kernel/syscall.c
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@ -1075,7 +1075,7 @@ SYSCALL_DECLARE(rt_sigprocmask)
const sigset_t *set = (const sigset_t *)ihk_mc_syscall_arg1(ctx);
sigset_t *oldset = (sigset_t *)ihk_mc_syscall_arg2(ctx);
struct process *proc = cpu_local_var(current);
int irqstate;
int flag;
if(set &&
how != SIG_BLOCK &&
@ -1083,7 +1083,7 @@ SYSCALL_DECLARE(rt_sigprocmask)
how != SIG_SETMASK)
return -EINVAL;
irqstate = ihk_mc_spinlock_lock(&proc->sighandler->lock);
flag = ihk_mc_spinlock_lock(&proc->sighandler->lock);
if(oldset)
oldset->__val[0] = proc->sigmask.__val[0];
if(set){
@ -1099,12 +1099,38 @@ SYSCALL_DECLARE(rt_sigprocmask)
break;
}
}
ihk_mc_spinlock_unlock(&proc->sighandler->lock, irqstate);
ihk_mc_spinlock_unlock(&proc->sighandler->lock, flag);
return 0;
}
SYSCALL_DECLARE(rt_sigpending)
{
int flag;
struct sig_pending *pending;
struct list_head *head;
ihk_spinlock_t *lock;
__sigset_t w = 0;
struct process *proc = cpu_local_var(current);
sigset_t *set = (sigset_t *)ihk_mc_syscall_arg0(ctx);
lock = &proc->sigshared->lock;
head = &proc->sigshared->sigpending;
flag = ihk_mc_spinlock_lock(lock);
list_for_each_entry(pending, head, list){
w |= pending->sigmask.__val[0];
}
ihk_mc_spinlock_unlock(lock, flag);
lock = &proc->sigpendinglock;
head = &proc->sigpending;
flag = ihk_mc_spinlock_lock(lock);
list_for_each_entry(pending, head, list){
w |= pending->sigmask.__val[0];
}
ihk_mc_spinlock_unlock(lock, flag);
set->__val[0] = w;
return 0;
}