Replace valid memory checks with new myfault class "exception handling", almost

[pf3gnuchains/pf3gnuchains4x.git] / winsup / cygwin / sigproc.h

diff --git a/winsup/cygwin/sigproc.h b/winsup/cygwin/sigproc.h
index 4bc9615..a5b9a54 100644 (file)
--- a/winsup/cygwin/sigproc.h
+++ b/winsup/cygwin/sigproc.h
@@ -1,6 +1,6 @@
 /* sigproc.h
 
-   Copyright 1997, 1998, 2000, 2001, 2002 Red Hat, Inc.
+   Copyright 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc.
 
 This file is part of Cygwin.
 
@@ -12,17 +12,17 @@ details. */
 #define _SIGPROC_H
 #include <signal.h>
 
-#define EXIT_SIGNAL     0x010000
-#define EXIT_REPARENTING 0x020000
-#define EXIT_NOCLOSEALL  0x040000
-
 #ifdef NSIG
 enum
 {
   __SIGFLUSH       = -(NSIG + 1),
   __SIGSTRACE      = -(NSIG + 2),
   __SIGCOMMUNE     = -(NSIG + 3),
-  __SIGPENDING     = -(NSIG + 4)
+  __SIGPENDING     = -(NSIG + 4),
+  __SIGDELETE      = -(NSIG + 5),
+  __SIGFLUSHFAST    = -(NSIG + 6),
+  __SIGHOLD        = -(NSIG + 7),
+  __SIGNOHOLD      = -(NSIG + 8)
 };
 #endif
 
@@ -30,90 +30,39 @@ enum
 
 enum procstuff
 {
-  PROC_ADDCHILD                = 1,    // add a new subprocess to list
-  PROC_CHILDTERMINATED = 2,    // a child died
-  PROC_CLEARWAIT       = 3,    // clear all waits - signal arrived
-  PROC_WAIT            = 4,    // setup for wait() for subproc
-  PROC_NOTHING         = 5     // nothing, really
+  PROC_ADDCHILD                  = 1,  // add a new subprocess to list
+  PROC_DETACHED_CHILD    = 2,  // set up a detached child
+  PROC_CLEARWAIT         = 3,  // clear all waits - signal arrived
+  PROC_WAIT              = 4,  // setup for wait() for subproc
+  PROC_NOTHING           = 5   // nothing, really
 };
 
-typedef struct struct_waitq
-{
-  int pid;
-  int options;
-  int status;
-  HANDLE ev;
-  void *rusage;                        /* pointer to potential rusage */
-  struct struct_waitq *next;
-  HANDLE thread_ev;
-} waitq;
-
-struct sigthread
+struct sigpacket
 {
-  DWORD id;
-  DWORD frame;
-  CRITICAL_SECTION lock;
-  LONG winapi_lock;
-  BOOL exception;
-  bool get_winapi_lock (int test = 0);
-  void release_winapi_lock ();
-  void init (const char *s);
-};
-
-class sigframe
-{
-private:
-  sigthread *st;
-  inline bool unregister ()
-  {
-    if (!st)
-      return 0;
-    EnterCriticalSection (&st->lock);
-    st->frame = 0;
-    st->exception = 0;
-    st->release_winapi_lock ();
-    LeaveCriticalSection (&st->lock);
-    st = NULL;
-    return 1;
-  }
-
-public:
-  inline void set (sigthread &t, DWORD ebp, bool is_exception = 0)
-  {
-    DWORD oframe = t.frame;
-    st = &t;
-    t.frame = ebp;
-    t.exception = is_exception;
-    if (!oframe)
-      t.get_winapi_lock ();
-  }
-  inline void init (sigthread &t, DWORD ebp = (DWORD) __builtin_frame_address (0), bool is_exception = 0)
+  siginfo_t si;
+  pid_t pid;
+  class _cygtls *tls;
+  sigset_t *mask;
+  union
   {
-    if (is_exception || (!t.frame && t.id == GetCurrentThreadId ()))
-      set (t, ebp, is_exception);
-    else
-      st = NULL;
-  }
-
-  sigframe (): st (NULL) {}
-  sigframe (sigthread &t, DWORD ebp = (DWORD) __builtin_frame_address (0)) {init (t, ebp);}
-  ~sigframe ()
-  {
-    unregister ();
-  }
-
-  int call_signal_handler ();
+    HANDLE wakeup;
+    struct sigpacket *next;
+  };
+  int __stdcall process () __attribute__ ((regparm (1)));
 };
 
-extern sigthread mainthread;
 extern HANDLE signal_arrived;
 extern HANDLE sigCONT;
 
-BOOL __stdcall my_parent_is_alive ();
-int __stdcall sig_dispatch_pending ();
-extern "C" void __stdcall set_process_mask (sigset_t newmask);
+void __stdcall sig_dispatch_pending (bool fast = false);
+#ifdef _PINFO_H
+extern "C" void __stdcall set_signal_mask (sigset_t newmask, sigset_t = myself->getsigmask ());
+#endif
+int __stdcall handle_sigprocmask (int sig, const sigset_t *set,
+                                 sigset_t *oldset, sigset_t& opmask)
+  __attribute__ ((regparm (3)));
+
 extern "C" void __stdcall reset_signal_arrived ();
-int __stdcall sig_handle (int, sigset_t) __attribute__ ((regparm (2)));
 void __stdcall sig_clear (int) __attribute__ ((regparm (1)));
 void __stdcall sig_set_pending (int) __attribute__ ((regparm (1)));
 int __stdcall handle_sigsuspend (sigset_t);
@@ -123,22 +72,23 @@ int __stdcall proc_subproc (DWORD, DWORD) __attribute__ ((regparm (2)));
 class _pinfo;
 void __stdcall proc_terminate ();
 void __stdcall sigproc_init ();
-void __stdcall subproc_init ();
 void __stdcall sigproc_terminate ();
-BOOL __stdcall proc_exists (_pinfo *) __attribute__ ((regparm(1)));
-BOOL __stdcall pid_exists (pid_t) __attribute__ ((regparm(1)));
-int __stdcall sig_send (_pinfo *, int, DWORD ebp = (DWORD) __builtin_frame_address (0),
-                       bool exception = 0)  __attribute__ ((regparm(3)));
-void __stdcall signal_fixup_after_fork ();
+bool __stdcall pid_exists (pid_t) __attribute__ ((regparm(1)));
+int __stdcall sig_send (_pinfo *, siginfo_t&, class _cygtls *tls = NULL) __attribute__ ((regparm (3)));
+int __stdcall sig_send (_pinfo *, int) __attribute__ ((regparm (2)));
 void __stdcall signal_fixup_after_exec ();
 void __stdcall wait_for_sigthread ();
 void __stdcall sigalloc ();
+void __stdcall create_signal_arrived ();
+
+int kill_pgrp (pid_t, siginfo_t&);
+int killsys (pid_t, int);
 
 extern char myself_nowait_dummy[];
-extern char myself_nowait_nonmain_dummy[];
 
-#define WAIT_SIG_PRIORITY THREAD_PRIORITY_TIME_CRITICAL
+extern struct sigaction *global_sigs;
+
+#define WAIT_SIG_PRIORITY THREAD_PRIORITY_NORMAL
 
 #define myself_nowait ((_pinfo *)myself_nowait_dummy)
-#define myself_nowait_nonmain ((_pinfo *)myself_nowait_nonmain_dummy)
 #endif /*_SIGPROC_H*/