-daemon option

svn path=/trunk/boinc/; revision=9239

checkin_notes

@@ -440,3 +440,12 @@ Rom    15 Jan 2006
 Rom    15 Jan 2006 (HEAD)
     - Tag for 5.3.11 release, all platforms
       boinc_core_release_5_3_11
+
+David  15 Jan 2006
+    - core client: add "-daemon" option (uses daemon() system call
+        to detach from controlling terminal)
+        From Jan Gall
+
+    client/
+        cs_cmdline.C
+        main.C

client/cs_cmdline.C

@@ -52,6 +52,7 @@ static void print_options(char* prog) {
         "    -detach                        detach from console (Windows)\n"
         "    -dir <path>                    use given dir as BOINC home\n"
         "    -no_gui_rpc                    don't allow GUI RPC, don't make socket\n"
+        "    -daemon                        run as daemon (Unix)\n"
         ,
         prog
     );

client/main.C

@@ -45,9 +45,9 @@ typedef void (CALLBACK* IdleTrackerTerm)();
 #include <sys/types.h>
 #include <sys/socket.h>
 #endif
+#include <syslog.h>
 #include <unistd.h>
 #include <csignal>
-//#include "synch.h"
 #endif
 
 #ifdef __APPLE__
@@ -498,6 +498,19 @@ int main(int argc, char** argv) {
             break;
         }
     }
+#elif defined linux
+    int i;
+    for (i = 1; i < argc; i++) {
+        if (strcmp(argv[i], "-daemon") == 0 || strcmp(argv[i], "--daemon") == 0) {
+            syslog(LOG_DAEMON, "Starting Boinc-Daemon, listening on port %d.", GUI_RPC_PORT);
+            // from <unistd.h>:
+            // Detach from the controlling terminal and run in the background as system daemon.
+            // Don't change working directory to root ("/"), but redirect
+            // standard input, standard output and standard error to /dev/null.
+            daemon(1, 0);
+            break;
+        }
+    }
 #endif
 
     boinc_cleanup_completed = false;

doc/client_unix.php

@@ -71,6 +71,9 @@ list_item("-detach",
 list_item("-no_gui_rpc",
     "Don't allow GUI RPCs."
 );
+list_item("-daemon",
+    "Run as daemon (detach from controlling terminal; Linux only)
+);
 list_end();
 echo "
 <h2>Environment variables</h2>

doc/contact.php

@@ -119,6 +119,7 @@ show_name("Glenn Dill");
 show_name("James Drews");
 show_name("Charlie Fenton");
 show_name("John Flynn III");
+show_name("Jan Gall");
 show_name("Michael Gary");
 show_name("Marco Gazzoni");
 show_name("Gary Gibson");