Copyright 1996-2003 John D. Polstra.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* This product includes software developed by John D. Polstra.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This module contains the unsafe portions of the FSServer
implementation.
UNSAFE MODULE FSServerU EXPORTS FSServerRep;
IMPORT IP, Process, Uexec, Utypes;
PROCEDURE Reap(self: ChildHandler; <*UNUSED*> sig: INTEGER) =
Signal handler for SIGCHLD.
VAR
pid: Utypes.pid_t;
BEGIN
LOOP
pid := Uexec.waitpid(pid := -1, status := NIL, options := Uexec.WNOHANG);
IF pid <= 0 THEN EXIT END;
FOR i := 0 TO self.server.numSlots-1 DO
IF self.server.childPids[i] = pid THEN
self.server.childPids[i] := Process.NullID;
self.server.childAddrs[i] := IP.NullAddress;
EXIT;
END;
END;
DEC(self.server.numChildren);
END;
END Reap;
BEGIN
END FSServerU.