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+/*++
+/* NAME
+/* master_service 3
+/* SUMMARY
+/* Postfix master - start/stop services
+/* SYNOPSIS
+/* #include "master.h"
+/*
+/* void master_start_service(serv)
+/* MASTER_SERV *serv;
+/*
+/* void master_stop_service(serv)
+/* MASTER_SERV *serv;
+/*
+/* void master_restart_service(serv, conf_reload)
+/* MASTER_SERV *serv;
+/* int conf_reload;
+/* DESCRIPTION
+/* master_start_service() enables the named service.
+/*
+/* master_stop_service() disables named service.
+/*
+/* master_restart_service() requests all running child processes to
+/* commit suicide. The conf_reload argument is either DO_CONF_RELOAD
+/* (configuration files were reloaded, re-evaluate the child process
+/* creation policy) or NO_CONF_RELOAD.
+/* DIAGNOSTICS
+/* BUGS
+/* SEE ALSO
+/* master_avail(3), process creation policy
+/* master_wakeup(3), service automatic wakeup
+/* master_status(3), child status reports
+/* master_listen(3), unix/inet listeners
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/* Wietse Venema
+/* IBM T.J. Watson Research
+/* P.O. Box 704
+/* Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System libraries. */
+
+#include <sys_defs.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <mymalloc.h>
+
+/* Application-specific. */
+
+#include "master.h"
+
+MASTER_SERV *master_head;
+
+/* master_start_service - activate service */
+
+void master_start_service(MASTER_SERV *serv)
+{
+
+ /*
+ * Enable connection requests, wakeup timers, and status updates from
+ * child processes.
+ */
+ master_listen_init(serv);
+ master_avail_listen(serv);
+ master_status_init(serv);
+ master_wakeup_init(serv);
+}
+
+/* master_stop_service - deactivate service */
+
+void master_stop_service(MASTER_SERV *serv)
+{
+
+ /*
+ * Undo the things that master_start_service() did.
+ */
+ master_wakeup_cleanup(serv);
+ master_status_cleanup(serv);
+ master_avail_cleanup(serv);
+ master_listen_cleanup(serv);
+}
+
+/* master_restart_service - restart service after configuration reload */
+
+void master_restart_service(MASTER_SERV *serv, int conf_reload)
+{
+
+ /*
+ * Undo some of the things that master_start_service() did.
+ */
+ master_wakeup_cleanup(serv);
+ master_status_cleanup(serv);
+
+ /*
+ * Now undo the undone.
+ */
+ master_status_init(serv);
+ master_wakeup_init(serv);
+
+ /*
+ * Respond to configuration change.
+ */
+ if (conf_reload)
+ master_avail_listen(serv);
+}