Unload lttng modules when sessiond quits

[lttng-tools.git] / ltt-sessiond / ltt-sessiond.h

diff --git a/ltt-sessiond/ltt-sessiond.h b/ltt-sessiond/ltt-sessiond.h
index 17c9c32f8fd75c7a5a445f65f6e941e803cf78a6..0882d40a83dc4128426ceca3435575dab231e51e 100644 (file)
--- a/ltt-sessiond/ltt-sessiond.h
+++ b/ltt-sessiond/ltt-sessiond.h
@@ -19,32 +19,38 @@
 #ifndef _LTT_SESSIOND_H
 #define _LTT_SESSIOND_H
 
-#define DEFAULT_HOME_DIR                       "/tmp"
+#define DEFAULT_HOME_DIR               "/tmp"
 #define DEFAULT_UST_SOCK_DIR           DEFAULT_HOME_DIR "/ust-app-socks"
 #define DEFAULT_GLOBAL_APPS_PIPE       DEFAULT_UST_SOCK_DIR "/global"
-#define DEFAULT_TRACE_OUTPUT        DEFAULT_HOME_DIR "/lttng"
+#define DEFAULT_TRACE_OUTPUT           DEFAULT_HOME_DIR "/lttng"
+
+struct module_param {
+       const char *name;
+       int required;
+};
 
 /* LTTng kernel tracer modules list */
-const char *kernel_modules_list[] = {
-       "lib-ring-buffer",
-       "ltt-relay",
-       "ltt-ring-buffer-client-discard",
-       "ltt-ring-buffer-client-overwrite",
-       "ltt-ring-buffer-metadata-client",
-       "ltt-ring-buffer-client-mmap-discard",
-       "ltt-ring-buffer-client-mmap-overwrite",
-       "ltt-ring-buffer-metadata-mmap-client",
-       "lttng-ftrace",
-       "lttng-kprobes",
-       "lttng-kretprobes",
-       "lttng-probe-block",
-       "lttng-probe-irq",
-       "lttng-probe-kvm",
-       "lttng-probe-lttng",
-       "lttng-probe-sched",
-       "lttng-probe-syscalls",
-       "lttng-types",
-       NULL,
+const struct module_param kernel_modules_list[] = {
+       /* used by ltt-relay, unload last */
+       { "lttng-ftrace", 0 },
+       { "lttng-kprobes", 0 },
+       { "lttng-kretprobes", 0 },
+
+       { "lib-ring-buffer", 1 },
+       { "ltt-relay", 1 },
+       { "ltt-ring-buffer-client-discard", 1 },
+       { "ltt-ring-buffer-client-overwrite", 1 },
+       { "ltt-ring-buffer-metadata-client", 1 },
+       { "ltt-ring-buffer-client-mmap-discard", 1 },
+       { "ltt-ring-buffer-client-mmap-overwrite", 1 },
+       { "ltt-ring-buffer-metadata-mmap-client", 1 },
+       { "lttng-probe-lttng", 1 },
+       { "lttng-types", 0 },
+       { "lttng-probe-block", 0 },
+       { "lttng-probe-irq", 0 },
+       { "lttng-probe-kvm", 0 },
+       { "lttng-probe-sched", 0 },
+       { "lttng-probe-syscalls", 0 },
 };
 
 extern const char default_home_dir[],