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* signal.cc (_pinfo::kill): Return 0 when attempting to test for existence of

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an existed process which has not yet been reaped.
This commit is contained in:
Christopher Faylor 2011-04-17 21:45:28 +00:00
parent f4c1f003e3
commit fdcae03c0f
2 changed files with 35 additions and 22 deletions
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5
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,8 @@
2011-04-17 Christopher Faylor <me.cygwin2011@cgf.cx>
* signal.cc (_pinfo::kill): Return 0 when attempting to test for
existence of an existed process which has not yet been reaped.
2011-04-17 Christopher Faylor <me.cygwin2011@cgf.cx> 2011-04-17 Christopher Faylor <me.cygwin2011@cgf.cx>
* cygheap.h (init_cygheap::ctty): Use base class so that console can * cygheap.h (init_cygheap::ctty): Use base class so that console can

28
winsup/cygwin/signal.cc
View File

@ -221,23 +221,19 @@ handle_sigprocmask (int how, const sigset_t *set, sigset_t *oldset, sigset_t& op
int __stdcall int __stdcall
_pinfo::kill (siginfo_t& si) _pinfo::kill (siginfo_t& si)
{ {
int res;
DWORD this_process_state;
sig_dispatch_pending (); sig_dispatch_pending ();
int res = 0; if (exists ())
bool sendSIGCONT;
if (!exists ())
{ {
set_errno (ESRCH); bool sendSIGCONT;
return -1;
}
if ((sendSIGCONT = (si.si_signo < 0))) if ((sendSIGCONT = (si.si_signo < 0)))
si.si_signo = -si.si_signo; si.si_signo = -si.si_signo;
DWORD this_process_state = process_state;
if (si.si_signo == 0) if (si.si_signo == 0)
/* ok */; res = 0;
else if ((res = sig_send (this, si))) else if ((res = sig_send (this, si)))
{ {
sigproc_printf ("%d = sig_send, %E ", res); sigproc_printf ("%d = sig_send, %E ", res);
@ -250,6 +246,18 @@ _pinfo::kill (siginfo_t& si)
si2.si_code = SI_KERNEL; si2.si_code = SI_KERNEL;
sig_send (this, si2); sig_send (this, si2);
} }
}
else if (si.si_signo == 0 && this)
{
this_process_state = process_state;
res = 0;
}
else
{
set_errno (ESRCH);
this_process_state = 0;
res = -1;
}
syscall_printf ("%d = _pinfo::kill (%d, %d), process_state %p", res, pid, syscall_printf ("%d = _pinfo::kill (%d, %d), process_state %p", res, pid,
si.si_signo, this_process_state); si.si_signo, this_process_state);