cluster: STABLE3 - group_tool: compat command

[David Teigland <teigland@fedoraproject.org>]

Gitweb:        http://git.fedorahosted.org/git/cluster.git?p=cluster.git;a=commitdiff;h=957db633dde58f6f1acbad1e63b0d8a8d1d6493a
Commit:        957db633dde58f6f1acbad1e63b0d8a8d1d6493a
Parent:        a77eb4aaf93bbf1d1616eab487b81314ff1ce050
Author:        David Teigland <teigland@redhat.com>
AuthorDate:    Fri Mar 27 16:09:48 2009 -0500
Committer:     David Teigland <teigland@redhat.com>
CommitterDate: Fri Mar 27 16:09:48 2009 -0500

group_tool: compat command

'group_tool compat' just queries groupd and reports if it's running
and if so what compat mode it's running.  If groupd is not running
it exits with 1.  Also remove the log option and fix up the help.

Signed-off-by: David Teigland <teigland@redhat.com>
---
 group/tool/main.c |   83 ++++++++++++++++++++++++++++------------------------
 1 files changed, 45 insertions(+), 38 deletions(-)

diff --git a/group/tool/main.c b/group/tool/main.c
index e1d911c..683323f 100644
--- a/group/tool/main.c
+++ b/group/tool/main.c
@@ -30,7 +30,7 @@
 
 #define OP_LIST				1
 #define OP_DUMP				2
-#define OP_LOG				3
+#define OP_COMPAT			3
 
 static char *prog_name;
 static int operation;
@@ -81,28 +81,28 @@ static void print_usage(void)
 {
 	printf("Usage:\n");
 	printf("\n");
-	printf("%s [options] [ls|dump]\n", prog_name);
+	printf("%s [options] [compat|ls|dump]\n", prog_name);
 	printf("\n");
 	printf("Options:\n");
-	printf("  -v               Verbose output, extra event information\n");
-	printf("  -a               fence_tool ls; dlm_tool ls; gfs_control ls\n");
-	printf("  -n               Show all node information with -a\n");
 	printf("  -h               Print this help, then exit\n");
 	printf("  -V               Print program version information, then exit\n");
 	printf("\n");
-	printf("Display group information from groupd\n");
-	printf("ls                 Show information for all groups\n");
-	printf("ls <level> <name>  Show information one group.  If\n");
-	printf("                   we are not a member of the group,\n");
-	printf("                   return 1.\n");
+
+	printf("compat             Show compatibility mode that groupd is running\n");
 	printf("\n");
-	printf("Display debugging information\n");
-	printf("dump               Show debug log from groupd\n");
-	printf("dump fence         Show debug log from fenced\n");
-	printf("dump gfs           Show debug log from gfs_controld\n");
-	printf("dump plocks <name> Show posix locks for gfs with given name\n");
+
+	printf("ls                 Show group state for fence, dlm, gfs\n");
+	printf("   -a              fence_tool ls; dlm_tool ls; gfs_control ls\n");
+	printf("   -n              Show all node information with -a\n");
+	printf("   -v              Show extra event information (with compat 1)\n");
 	printf("\n");
-	printf("log <comments>     Add information to the groupd log.\n");
+
+	printf("dump               Show debug log from groupd\n");
+	printf("dump fence         Show debug log from fenced (fence_tool dump)\n");
+	printf("dump dlm           Show debug log from dlm_controld (dlm_tool dump)\n");
+	printf("dump gfs           Show debug log from gfs_controld (gfs_control dump)\n");
+	printf("dump plocks <name> Show posix locks from dlm_controld for lockspace <name>\n");
+	printf("                   (dlm_tool plocks <name>)\n");
 	printf("\n");
 }
 
@@ -168,8 +168,8 @@ static void decode_arguments(int argc, char **argv)
 			operation = OP_LIST;
 			opt_ind = optind + 1;
 			break;
-		} else if (strcmp(argv[optind], "log") == 0) {
-			operation = OP_LOG;
+		} else if (strcmp(argv[optind], "compat") == 0) {
+			operation = OP_COMPAT;
 			opt_ind = optind + 1;
 			break;
 		}
@@ -591,21 +591,6 @@ static void groupd_dump_debug(int argc, char **argv, char *inbuf)
 	close(fd);
 }
 
-static int do_log(char *comment)
-{
-	char buf[GROUPD_MSGLEN];
-	int fd, rv;
-
-	fd = connect_daemon(GROUPD_SOCK_PATH);
-	if (fd < 0)
-		return fd;
-	memset(buf, 0, sizeof(buf));
-	snprintf(buf, sizeof(buf), "log %s", comment);
-	rv = write(fd, &buf, GROUPD_MSGLEN);
-	close(fd);
-	return rv;
-}
-
 int main(int argc, char **argv)
 {
 	int rv, version = 0; 
@@ -614,6 +599,33 @@ int main(int argc, char **argv)
 	decode_arguments(argc, argv);
 
 	switch (operation) {
+	case OP_COMPAT:
+		rv = group_get_version(&version);
+		if (rv < 0)
+			version = -1;
+
+		switch (version) {
+		case -1:
+			printf("groupd not running\n");
+			break;
+		case -EAGAIN:
+			printf("groupd compatibility mode 2 (pending)\n");
+			break;
+		case GROUP_LIBGROUP:
+			printf("groupd compatibility mode 1\n");
+			break;
+		case GROUP_LIBCPG:
+			printf("groupd compatibility mode 0\n");
+			break;
+		default:
+			printf("groupd compatibility mode %d\n", version);
+			break;
+		}
+
+		if (rv < 0)
+			exit(EXIT_FAILURE);
+		break;
+
 	case OP_LIST:
 
 		rv = group_get_version(&version);
@@ -734,11 +746,6 @@ int main(int argc, char **argv)
 		}
 
 		break;
-
-	case OP_LOG:
-		if (opt_ind && opt_ind < argc) {
-			return do_log(argv[opt_ind]);
-		}
 	}
 
 	return 0;