* pinfo.h (_pinfo::getsig): Remove obsolete function, here and throughout.

* exceptions.cc: Ditto.
* fhandler_termios.cc: Ditto.
* signal.cc: Ditto.
* sigproc.cc: Ditto.
* Makefile.in: Revert previous change which made a cygwin.din newer than a
version.h a warning rather than an error.

8 files changed, 36 insertions, 44 deletions

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index c1d5c82..7d4abb4 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,5 +1,17 @@
 2003-11-28  Christopher Faylor  <cgf@redhat.com>
 
+	* pinfo.h (_pinfo::getsig): Remove obsolete function, here and
+	throughout.
+	* exceptions.cc: Ditto.
+	* fhandler_termios.cc: Ditto.
+	* signal.cc: Ditto.
+	* sigproc.cc: Ditto.
+
+	* Makefile.in: Revert previous change which made a cygwin.din newer
+	than a version.h a warning rather than an error.
+
+2003-11-28  Christopher Faylor  <cgf@redhat.com>
+
 	* cygwin.din: Re-add inexplicably missing semaphore/msg functions.
 
 2003-11-28  Christopher Faylor  <cgf@redhat.com>
diff --git a/winsup/cygwin/Makefile.in b/winsup/cygwin/Makefile.in
index e285d0b..ed5247a 100644
--- a/winsup/cygwin/Makefile.in
+++ b/winsup/cygwin/Makefile.in
@@ -375,8 +375,8 @@ $(LIBGMON_A): $(GMON_OFILES) $(GMON_START)
 	$(AR) rcv $(LIBGMON_A) $(GMON_OFILES)
 
 $(API_VER): $(srcdir)/cygwin.din
-	@echo Error: Version info is older than DLL API!
-#	@false
+	@echo Error: Version info is older than DLL API!;\
+	false
 
 version.cc winver.o: winver_stamp
 	@ :
diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc
index a15e761..059b570 100644
--- a/winsup/cygwin/exceptions.cc
+++ b/winsup/cygwin/exceptions.cc
@@ -547,11 +547,11 @@ handle_exceptions (EXCEPTION_RECORD *e0, void *frame, CONTEXT *in0, void *)
   debug_printf ("In cygwin_except_handler exc %p at %p sp %p", e.ExceptionCode, in.Eip, in.Esp);
   debug_printf ("In cygwin_except_handler sig = %d at %p", sig, in.Eip);
 
-  if (myself->getsig (sig).sa_mask & SIGTOMASK (sig))
-    syscall_printf ("signal %d, masked %p", sig, myself->getsig (sig).sa_mask);
+  if (global_sigs[sig].sa_mask & SIGTOMASK (sig))
+    syscall_printf ("signal %d, masked %p", sig, global_sigs[sig].sa_mask);
 
   debug_printf ("In cygwin_except_handler calling %p",
-		 myself->getsig (sig).sa_handler);
+		 global_sigs[sig].sa_handler);
 
   DWORD *ebp = (DWORD *)in.Esp;
   for (DWORD *bpend = (DWORD *) __builtin_frame_address (0); ebp > bpend; ebp--)
@@ -563,9 +563,9 @@ handle_exceptions (EXCEPTION_RECORD *e0, void *frame, CONTEXT *in0, void *)
 
   if (!myself->progname[0]
       || GetCurrentThreadId () == sigtid
-      || (void *) myself->getsig (sig).sa_handler == (void *) SIG_DFL
-      || (void *) myself->getsig (sig).sa_handler == (void *) SIG_IGN
-      || (void *) myself->getsig (sig).sa_handler == (void *) SIG_ERR)
+      || (void *) global_sigs[sig].sa_handler == (void *) SIG_DFL
+      || (void *) global_sigs[sig].sa_handler == (void *) SIG_IGN
+      || (void *) global_sigs[sig].sa_handler == (void *) SIG_ERR)
     {
       /* Print the exception to the console */
       if (1)
@@ -1010,7 +1010,7 @@ sig_handle (int sig, sigset_t mask, int pid, _threadinfo *tls)
     sig_clear (SIGCONT);
 
   sigproc_printf ("signal %d processing", sig);
-  struct sigaction thissig = myself->getsig (sig);
+  struct sigaction thissig = global_sigs[sig];
   void *handler;
   handler = (void *) thissig.sa_handler;
 
@@ -1061,7 +1061,7 @@ stop:
   if (ISSTATE (myself, PID_STOPPED))
     goto done;
   handler = (void *) sig_handle_tty_stop;
-  thissig = myself->getsig (SIGSTOP);
+  thissig = global_sigs[SIGSTOP];
 
 dosig:
   /* Dispatch to the appropriate function. */
diff --git a/winsup/cygwin/fhandler_termios.cc b/winsup/cygwin/fhandler_termios.cc
index ddf20ae..1b509e2 100644
--- a/winsup/cygwin/fhandler_termios.cc
+++ b/winsup/cygwin/fhandler_termios.cc
@@ -155,7 +155,7 @@ fhandler_termios::bg_check (int sig)
      return with error */
   int pgid_gone = !pid_exists (myself->pgid);
   int sigs_ignored =
-    ((void *) myself->getsig (sig).sa_handler == (void *) SIG_IGN) ||
+    ((void *) global_sigs[sig].sa_handler == (void *) SIG_IGN) ||
     (myself->getsigmask () & SIGTOMASK (sig));
 
   if (pgid_gone)
diff --git a/winsup/cygwin/how-signals-work.txt b/winsup/cygwin/how-signals-work.txt
index aab65f6..b890e31 100644
--- a/winsup/cygwin/how-signals-work.txt
+++ b/winsup/cygwin/how-signals-work.txt
@@ -1,25 +1,10 @@
 Copyright 2001 Red Hat Inc., Christopher Faylor
 
-[this information is currently obsolete -- sorry]
 How do signals work?
 
 On process startup, cygwin starts a secondary thread that deals with signals.
-This thread contains a loop which blocks waiting for one of three events:
-
-1) sigcatch_main - a semaphore which, when incremented, indicates that a
-   signal may be available for the main thread.  The caller waits for the
-   signal to be delivered before returning.
-
-2) sigcatch_nonmain - a semaphore which , when incremented, indicates that
-   a signal is available for a non-main thread (currently this is not truly
-   implemented).  The caller waits for the signal to be delivered before
-   returning.
-
-3) sigcatch_nosync - a semaphore which, when incremented, indicates that
-   a signal may be available for the main thread.  The caller does not wait
-   for the delivery of the signal before returning.
-
-So, the signal handler blocks waiting for one of these three semaphores.
+This thread contains a loop which blocks waiting for information to show up
+on a pipe whose handle (sendsig) is currently stored in _pinfo (this may change).
 
 If one of these is activated, then the the signal handler inspects an
 array of integers looking for a non-zero value.  The array corresponds
diff --git a/winsup/cygwin/pinfo.h b/winsup/cygwin/pinfo.h
index 573e050..b2e8af3 100644
--- a/winsup/cygwin/pinfo.h
+++ b/winsup/cygwin/pinfo.h
@@ -104,11 +104,6 @@ public:
 
   inline void set_has_pgid_children (bool val) {has_pgid_children = val;}
 
-  inline struct sigaction& getsig (int sig)
-  {
-    return global_sigs[sig];
-  }
-
   inline sigset_t& getsigmask ()
   {
     return sig_mask;
diff --git a/winsup/cygwin/signal.cc b/winsup/cygwin/signal.cc
index 9bf9eb0..311e730 100644
--- a/winsup/cygwin/signal.cc
+++ b/winsup/cygwin/signal.cc
@@ -56,12 +56,12 @@ signal (int sig, _sig_func_ptr func)
       return (_sig_func_ptr) SIG_ERR;
     }
 
-  prev = myself->getsig (sig).sa_handler;
-  myself->getsig (sig).sa_handler = func;
-  myself->getsig (sig).sa_mask = 0;
+  prev = global_sigs[sig].sa_handler;
+  global_sigs[sig].sa_handler = func;
+  global_sigs[sig].sa_mask = 0;
   /* SA_RESTART is set to maintain BSD compatible signal behaviour by default.
      This is also compatible with the behaviour of signal(2) in Linux. */
-  myself->getsig (sig).sa_flags |= SA_RESTART;
+  global_sigs[sig].sa_flags |= SA_RESTART;
   set_sigcatchers (prev, func);
 
   syscall_printf ("%p = signal (%d, %p)", prev, sig, func);
@@ -332,7 +332,7 @@ sigaction (int sig, const struct sigaction *newact, struct sigaction *oldact)
       return -1;
     }
 
-  struct sigaction oa = myself->getsig (sig);
+  struct sigaction oa = global_sigs[sig];
 
   if (newact)
     {
@@ -341,7 +341,7 @@ sigaction (int sig, const struct sigaction *newact, struct sigaction *oldact)
 	  set_errno (EINVAL);
 	  return -1;
 	}
-      myself->getsig (sig) = *newact;
+      global_sigs[sig] = *newact;
       if (newact->sa_handler == SIG_IGN)
 	sig_clear (sig);
       if (newact->sa_handler == SIG_DFL && sig == SIGCHLD)
diff --git a/winsup/cygwin/sigproc.cc b/winsup/cygwin/sigproc.cc
index 9840004..0aeb4d8 100644
--- a/winsup/cygwin/sigproc.cc
+++ b/winsup/cygwin/sigproc.cc
@@ -98,9 +98,9 @@ signal_fixup_after_exec ()
   /* Set up child's signal handlers */
   for (int i = 0; i < NSIG; i++)
     {
-      myself->getsig (i).sa_mask = 0;
-      if (myself->getsig (i).sa_handler != SIG_IGN)
-	myself->getsig (i).sa_handler = SIG_DFL;
+      global_sigs[i].sa_mask = 0;
+      if (global_sigs[i].sa_handler != SIG_IGN)
+	global_sigs[i].sa_handler = SIG_DFL;
     }
 }
 
@@ -381,7 +381,7 @@ proc_subproc (DWORD what, DWORD val)
 	 remove the process and move on. Otherwise, this process becomes a zombie
 	 which must be reaped by a wait() call. */
       if (nzombies >= NZOMBIES
-	  || myself->getsig (SIGCHLD).sa_handler == (void *) SIG_IGN)
+	  || global_sigs[SIGCHLD].sa_handler == (void *) SIG_IGN)
 	{
 	  sigproc_printf ("automatically removing zombie %d", thiszombie);
 	  remove_zombie (thiszombie);
@@ -616,7 +616,7 @@ sigproc_init ()
     }
   memset (w, 0, sizeof *w);	// Just to be safe
 
-  myself->getsig (SIGSTOP).sa_flags = SA_RESTART | SA_NODEFER;
+  global_sigs[SIGSTOP].sa_flags = SA_RESTART | SA_NODEFER;
   sigproc_printf ("process/signal handling enabled(%x)", myself->process_state);
   return;
 }