scheduler/server.c

   1 /*
   2  * "$Id: server.c 7927 2008-09-10 22:05:29Z mike $"
   3  *
   4  *   Server start/stop routines for the CUPS scheduler.
   5  *
   6  *   Copyright 2007-2010 by Apple Inc.
   7  *   Copyright 1997-2006 by Easy Software Products, all rights reserved.
   8  *
   9  *   These coded instructions, statements, and computer programs are the
  10  *   property of Apple Inc. and are protected by Federal copyright
  11  *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  12  *   which should have been included with this file.  If this file is
  13  *   file is missing or damaged, see the license at "http://www.cups.org/".
  14  *
  15  * Contents:
  16  *
  17  *   cupsdStartServer() - Start the server.
  18  *   cupsdStopServer()  - Stop the server.
  19  */
  20
  21 /*
  22  * Include necessary headers...
  23  */
  24
  25 #include <cups/http-private.h>
  26 #include "cupsd.h"
  27 #include <grp.h>
  28 #ifdef HAVE_NOTIFY_H
  29 #  include <notify.h>
  30 #endif /* HAVE_NOTIFY_H */
  31
  32
  33 /*
  34  * Local globals...
  35  */
  36
  37 static int              started = 0;    /* Did we start the server already? */
  38
  39
  40 /*
  41  * 'cupsdStartServer()' - Start the server.
  42  */
  43
  44 void
  45 cupsdStartServer(void)
  46 {
  47  /*
  48   * Create the default security profile...
  49   */
  50
  51   DefaultProfile = cupsdCreateProfile(0);
  52
  53  /*
  54   * Startup all the networking stuff...
  55   */
  56
  57   cupsdStartListening();
  58   cupsdStartBrowsing();
  59
  60  /*
  61   * Create a pipe for CGI processes...
  62   */
  63
  64   if (cupsdOpenPipe(CGIPipes))
  65     cupsdLogMessage(CUPSD_LOG_ERROR,
  66                     "cupsdStartServer: Unable to create pipes for CGI status!");
  67   else
  68   {
  69     CGIStatusBuffer = cupsdStatBufNew(CGIPipes[0], "[CGI]");
  70
  71     cupsdAddSelect(CGIPipes[0], (cupsd_selfunc_t)cupsdUpdateCGI, NULL, NULL);
  72   }
  73
  74  /*
  75   * Mark that the server has started and printers and jobs may be changed...
  76   */
  77
  78   LastEvent = CUPSD_EVENT_PRINTER_CHANGED | CUPSD_EVENT_JOB_STATE_CHANGED |
  79               CUPSD_EVENT_SERVER_STARTED;
  80   started   = 1;
  81
  82   cupsdSetBusyState();
  83 }
  84
  85
  86 /*
  87  * 'cupsdStopServer()' - Stop the server.
  88  */
  89
  90 void
  91 cupsdStopServer(void)
  92 {
  93   if (!started)
  94     return;
  95
  96  /*
  97   * Close all network clients and stop all jobs...
  98   */
  99
 100   cupsdCloseAllClients();
 101   cupsdStopListening();
 102   cupsdStopBrowsing();
 103   cupsdStopAllNotifiers();
 104   cupsdDeleteAllCerts();
 105
 106   if (Clients)
 107   {
 108     cupsArrayDelete(Clients);
 109     Clients = NULL;
 110   }
 111
 112  /*
 113   * Close the pipe for CGI processes...
 114   */
 115
 116   if (CGIPipes[0] >= 0)
 117   {
 118     cupsdRemoveSelect(CGIPipes[0]);
 119
 120     cupsdStatBufDelete(CGIStatusBuffer);
 121     close(CGIPipes[1]);
 122
 123     CGIPipes[0] = -1;
 124     CGIPipes[1] = -1;
 125   }
 126
 127 #ifdef HAVE_NOTIFY_POST
 128  /*
 129   * Send one last notification as the server shuts down.
 130   */
 131
 132   cupsdLogMessage(CUPSD_LOG_DEBUG2,
 133                   "notify_post(\"com.apple.printerListChange\") last");
 134   notify_post("com.apple.printerListChange");
 135 #endif /* HAVE_NOTIFY_POST */
 136
 137  /*
 138   * Close all log files...
 139   */
 140
 141   if (AccessFile != NULL)
 142   {
 143     cupsFileClose(AccessFile);
 144
 145     AccessFile = NULL;
 146   }
 147
 148   if (ErrorFile != NULL)
 149   {
 150     cupsFileClose(ErrorFile);
 151
 152     ErrorFile = NULL;
 153   }
 154
 155   if (PageFile != NULL)
 156   {
 157     cupsFileClose(PageFile);
 158
 159     PageFile = NULL;
 160   }
 161
 162  /*
 163   * Delete the default security profile...
 164   */
 165
 166   cupsdDestroyProfile(DefaultProfile);
 167   DefaultProfile = NULL;
 168
 169  /*
 170   * Write out any dirty files...
 171   */
 172
 173   if (DirtyFiles)
 174     cupsdCleanDirty();
 175
 176   started = 0;
 177 }
 178
 179
 180 /*
 181  * End of "$Id: server.c 7927 2008-09-10 22:05:29Z mike $".
 182  */