[Cluster-devel] cluster/gnbd/server gnbd_serv.c gserv.c gserv.h

[bmarzins at sourceware.org]

CVSROOT:	/cvs/cluster
Module name:	cluster
Branch: 	RHEL4U4
Changes by:	bmarzins at sourceware.org	2006-09-21 19:34:34

Modified files:
	gnbd/server    : gnbd_serv.c gserv.c gserv.h 

Log message:
	Fix for bz #207351. The individual gserv processes inherit the atexit
	callbacks from the main gnbd_serv process. One of those kills all the gserv
	processes. Now they don't do that.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gnbd/server/gnbd_serv.c.diff?cvsroot=cluster&only_with_tag=RHEL4U4&r1=1.3.2.1&r2=1.3.2.1.12.1
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gnbd/server/gserv.c.diff?cvsroot=cluster&only_with_tag=RHEL4U4&r1=1.4&r2=1.4.14.1
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gnbd/server/gserv.h.diff?cvsroot=cluster&only_with_tag=RHEL4U4&r1=1.3&r2=1.3.14.1

--- cluster/gnbd/server/gnbd_serv.c	2005/03/16 22:40:39	1.3.2.1
+++ cluster/gnbd/server/gnbd_serv.c	2006/09/21 19:34:34	1.3.2.1.12.1
@@ -337,7 +337,9 @@
 
 void exit_main(void)
 {
-    kill_all_gserv();
+    if (!is_gserv) /* don't do this is you are a gserv process. Only
+		      the main process should kill the gservs */
+    	kill_all_gserv();
 }
 
 int main(int argc, char **argv)
--- cluster/gnbd/server/gserv.c	2004/08/14 01:33:21	1.4
+++ cluster/gnbd/server/gserv.c	2006/09/21 19:34:34	1.4.14.1
@@ -34,6 +34,10 @@
 
 #include <sys/socket.h>
 
+int is_gserv = 0; /* This gets set when child is forked. It is needed so that
+		     the gserv processes don't execute the atexit commands
+		     set up for the main program */
+
 list_decl(waiter_list);
 list_decl(gserv_list);
 off_t file_offset = (off_t)-1;
@@ -402,6 +406,7 @@
     unblock_sigchld();
     return;
   }
+  is_gserv = 1;
   unblock_sigchld();
   
   memset(&act,0,sizeof(act));
--- cluster/gnbd/server/gserv.h	2004/07/09 18:56:21	1.3
+++ cluster/gnbd/server/gserv.h	2006/09/21 19:34:34	1.3.14.1
@@ -49,6 +49,8 @@
 (x)->sectors = cpu_to_be64((x)->sectors);\
 (x)->version = cpu_to_be16((x)->version);
 
+extern int is_gserv;
+
 void gserv(int sock, char *node, uint64_t sectors, unsigned int flags,
            char *name, int devfd);
 int add_gserv_info(int sock, char *node, dev_info_t *dev, pid_t pid);