Fri May 26 13:00:08 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

* hurd/hurdsig.c (_hurd_internal_post_signal): Don't loop to check
 	pending signals if the thread is in a critical section.  It will
 	send us a msg when it finishes.

	* sysdeps/mach/hurd/pathconf.c: New file.
	* sysdeps/mach/hurd/fpathconf.c: New file.

	* sysdeps/mach/hurd/sigaction.c: Only notify the proc server for
 	SIGCHLD when the SA_NOCLDSTOP bit actually changes.

ChangeLog

@@ -1,3 +1,15 @@
+Fri May 26 13:00:08 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>
+
+	* hurd/hurdsig.c (_hurd_internal_post_signal): Don't loop to check
+ 	pending signals if the thread is in a critical section.  It will
+ 	send us a msg when it finishes.
+
+	* sysdeps/mach/hurd/pathconf.c: New file.
+	* sysdeps/mach/hurd/fpathconf.c: New file.
+
+	* sysdeps/mach/hurd/sigaction.c: Only notify the proc server for
+ 	SIGCHLD when the SA_NOCLDSTOP bit actually changes.
+
 Sun May 21 05:05:37 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>
 
 	* elf/Makefile (ld.so): Use -nostartfiles in addition to

hurd/hurdsig.c

@@ -847,8 +847,21 @@ _hurd_internal_post_signal (struct hurd_sigstate *ss,
 
   /* We get here unless the signal was fatal.  We still hold SS->lock.
      Check for pending signals, and loop to post them.  */
-#define PENDING	(!_hurd_stopped && (pending = ss->pending & ~ss->blocked))
-  if (PENDING)
+  {
+    /* Return nonzero if SS has any signals pending we should worry about.
+       We don't worry about any pending signals if we are stopped, nor if
+       SS is in a critical section.  We are guaranteed to get a sig_post
+       message before any of them become deliverable: either the SIGCONT
+       signal, or a sig_post with SIGNO==0 as an explicit poll when the
+       thread finishes its critical section.  */
+    inline int signals_pending (void)
+      {
+	if (_hurd_stopped || ss->critical_section)
+	  return 0;
+	return pending = ss->pending & ~ss->blocked;
+      }
+
+    if (signals_pending ())
       {
       pending:
 	for (signo = 1; signo < NSIG; ++signo)
@@ -872,7 +885,7 @@ _hurd_internal_post_signal (struct hurd_sigstate *ss,
 	for (ss = _hurd_sigstates; ss != NULL; ss = ss->next)
 	  {
 	    __spin_lock (&ss->lock);
-	  if (PENDING)
+	    if (signals_pending ())
 	      goto pending;
 	    __spin_unlock (&ss->lock);
 	  }
@@ -905,6 +918,7 @@ _hurd_internal_post_signal (struct hurd_sigstate *ss,
 	  }
 	__spin_unlock (&ss->lock);
       }
+  }
 
   /* All pending signals delivered to all threads.
      Now we can send the reply message even for signal 0.  */

manual/.cvsignore

@@ -3,7 +3,7 @@
 TODO COPYING* AUTHORS copyr-* copying.*
 glibc-*
 
-*.dvi* *.info* *.c.texi
+*.dvi* *.info* *.c.texi *.ps
 *.toc *.aux *.log
 *.cp *.cps *.fn *.fns *.vr *.vrs *.tp *.tps *.ky *.kys *.pg *.pgs
 

sysdeps/mach/hurd/fpathconf.c

@@ -0,0 +1,38 @@
+/* Copyright (C) 1991, 1992, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+
+/* Get file-specific information about descriptor FD.  */
+long int
+__fpathconf (int fd, int name)
+{
+  error_t err;
+  long int value;
+
+  if (err = HURD_DPORT_USE (fd, __file_pathconf (port, name, &value)))
+    return __hurd_dfail (fd, err), -1L;
+
+  return value;
+}
+
+weak_alias (__fpathconf, fpathconf)

sysdeps/mach/hurd/pathconf.c

@@ -0,0 +1,41 @@
+/* Copyright (C) 1991, 1992, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+
+/* Get file-specific information about FILE.  */
+long int
+__pathconf (const char *file, int name)
+{
+  error_t err;
+  file_t port = __file_name_lookup (file, 0, 0);
+  long int value;
+  if (port == MACH_PORT_NULL)
+    return -1L;
+  err = __file_pathconf (port, name, &value);
+  __mach_port_deallocate (__mach_task_self (), port);
+  if (err)
+    return __hurd_fail (err), -1L;
+  return value;
+}
+
+weak_alias (__pathconf, pathconf)