3 Copyright 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
4 2011, 2012 Red Hat, Inc.
6 This file is part of Cygwin.
8 This software is a copyrighted work licensed under the terms of the
9 Cygwin license. Please consult the file "CYGWIN_LICENSE" for
18 __SIGFLUSH = -(NSIG + 1),
19 __SIGSTRACE = -(NSIG + 2),
20 __SIGCOMMUNE = -(NSIG + 3),
21 __SIGPENDING = -(NSIG + 4),
22 __SIGDELETE = -(NSIG + 5),
23 __SIGFLUSHFAST = -(NSIG + 6),
24 __SIGHOLD = -(NSIG + 7),
25 __SIGNOHOLD = -(NSIG + 8),
26 __SIGEXIT = -(NSIG + 9),
27 __SIGSETPGRP = -(NSIG + 10)
31 #define SIG_BAD_MASK (1 << (SIGKILL - 1))
35 PROC_ADDCHILD = 1, // add a new subprocess to list
36 PROC_REATTACH_CHILD = 2, // reattach after exec
37 PROC_EXEC_CLEANUP = 3, // cleanup waiting children after exec
38 PROC_DETACHED_CHILD = 4, // set up a detached child
39 PROC_CLEARWAIT = 5, // clear all waits - signal arrived
40 PROC_WAIT = 6, // setup for wait() for subproc
41 PROC_EXECING = 7, // used to get a lock when execing
42 PROC_NOTHING = 8 // nothing, really
55 struct sigpacket *next;
57 int __stdcall process () __attribute__ ((regparm (1)));
60 extern HANDLE signal_arrived;
61 extern HANDLE sigCONT;
63 void __stdcall sig_dispatch_pending (bool fast = false);
65 extern "C" void __stdcall set_signal_mask (sigset_t newmask, sigset_t&);
67 int __stdcall handle_sigprocmask (int sig, const sigset_t *set,
68 sigset_t *oldset, sigset_t& opmask)
69 __attribute__ ((regparm (3)));
71 void __stdcall sig_clear (int) __attribute__ ((regparm (1)));
72 void __stdcall sig_set_pending (int) __attribute__ ((regparm (1)));
73 int __stdcall handle_sigsuspend (sigset_t);
75 int __stdcall proc_subproc (DWORD, DWORD) __attribute__ ((regparm (2)));
78 void __stdcall proc_terminate ();
79 void __stdcall sigproc_init ();
80 #ifdef __INSIDE_CYGWIN__
81 void __stdcall sigproc_terminate (enum exit_states);
83 static inline DWORD __attribute__ ((always_inline))
84 cygwait (HANDLE h, DWORD howlong = INFINITE)
89 if ((w4[n] = h) != NULL)
90 wait_signal = WAIT_OBJECT_0 + ++n;
92 wait_signal = WAIT_OBJECT_0 + 15; /* Arbitrary. Don't call signal
93 handler if only waiting for signal */
94 w4[n++] = signal_arrived;
95 if ((w4[n] = pthread::get_cancel_event ()) != NULL)
98 while ((res = WaitForMultipleObjects (n, w4, FALSE, howlong)) == wait_signal
99 && (_my_tls.call_signal_handler () || &_my_tls != _main_tls))
104 static inline DWORD __attribute__ ((always_inline))
107 return cygwait ((HANDLE) NULL, wait);
110 bool __stdcall pid_exists (pid_t) __attribute__ ((regparm(1)));
111 int __stdcall sig_send (_pinfo *, siginfo_t&, class _cygtls *tls = NULL) __attribute__ ((regparm (3)));
112 int __stdcall sig_send (_pinfo *, int) __attribute__ ((regparm (2)));
113 void __stdcall signal_fixup_after_exec ();
114 void __stdcall sigalloc ();
115 void __stdcall create_signal_arrived ();
117 int kill_pgrp (pid_t, siginfo_t&);
118 int killsys (pid_t, int);
120 extern char myself_nowait_dummy[];
122 extern struct sigaction *global_sigs;
124 #define myself_nowait ((_pinfo *) myself_nowait_dummy)