discover: implement default booting

When we see a boot option with is_default set, store it in the handler
and register a timeout waiter.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

diff --git a/discover/device-handler.c b/discover/device-handler.c
index 9b2ef3df4d94209c92166dadf1f07ca7d295ec81..f1632f0fe10989a5b48668920fc58473e7a46108 100644 (file)
--- a/discover/device-handler.c
+++ b/discover/device-handler.c
@@ -30,6 +30,10 @@ struct device_handler {
        struct discover_device  **devices;
        unsigned int            n_devices;
 
+       struct waitset          *waitset;
+       struct waiter           *timeout_waiter;
+
+       struct discover_boot_option *default_boot_option;
        struct list             unresolved_boot_options;
 };
 
@@ -176,6 +180,7 @@ void device_handler_destroy(struct device_handler *handler)
  * to keep struct device_handler opaque. */
 struct device_handler *device_handler_init(
                struct discover_server *server __attribute__((unused)),
+               struct waitset *waitset __attribute__((unused)),
                int dry_run __attribute__((unused)))
 {
        struct device_handler *handler;
@@ -274,7 +279,7 @@ static int umount_device(struct discover_device *dev)
 }
 
 struct device_handler *device_handler_init(struct discover_server *server,
-               int dry_run)
+               struct waitset *waitset, int dry_run)
 {
        struct device_handler *handler;
 
@@ -282,7 +287,9 @@ struct device_handler *device_handler_init(struct discover_server *server,
        handler->devices = NULL;
        handler->n_devices = 0;
        handler->server = server;
+       handler->waitset = waitset;
        handler->dry_run = dry_run;
+       handler->default_boot_option = NULL;
        list_init(&handler->unresolved_boot_options);
 
        /* set up our mount point base */
@@ -373,6 +380,37 @@ static void device_handler_remove(struct device_handler *handler,
        talloc_free(device);
 }
 
+static void boot_status(void *arg, struct boot_status *status)
+{
+       struct device_handler *handler = arg;
+
+       discover_server_notify_boot_status(handler->server, status);
+}
+
+static int default_timeout(void *arg)
+{
+       struct device_handler *handler = arg;
+
+       if (!handler->default_boot_option)
+               return 0;
+
+       boot(handler, handler->default_boot_option, NULL,
+                       handler->dry_run, boot_status, handler);
+       return 0;
+}
+
+static void set_default(struct device_handler *handler,
+               struct discover_boot_option *opt)
+{
+       if (handler->default_boot_option)
+               return;
+
+       handler->default_boot_option = opt;
+       handler->timeout_waiter = waiter_register_timeout(handler->waitset,
+                                       DEFAULT_BOOT_TIMEOUT_SEC * 1000,
+                                       default_timeout, handler);
+}
+
 static bool resource_is_resolved(struct resource *res)
 {
        return !res || res->resolved;
@@ -412,7 +450,8 @@ static bool boot_option_resolve(struct discover_boot_option *opt,
                resource_resolve(opt->icon, "icon", opt, handler);
 }
 
-static void boot_option_finalise(struct discover_boot_option *opt)
+static void boot_option_finalise(struct device_handler *handler,
+               struct discover_boot_option *opt)
 {
        assert(boot_option_is_resolved(opt));
 
@@ -430,6 +469,9 @@ static void boot_option_finalise(struct discover_boot_option *opt)
                opt->option->icon_file = opt->icon->url->full;
 
        opt->option->device_id = opt->device->device->id;
+
+       if (opt->option->is_default)
+               set_default(handler, opt);
 }
 
 static void process_boot_option_queue(struct device_handler *handler)
@@ -450,7 +492,7 @@ static void process_boot_option_queue(struct device_handler *handler)
                list_remove(&opt->list);
                list_add_tail(&opt->device->boot_options, &opt->list);
                talloc_steal(opt->device, opt);
-               boot_option_finalise(opt);
+               boot_option_finalise(handler, opt);
                discover_server_notify_boot_option_add(handler->server,
                                                        opt->option);
        }
@@ -502,7 +544,7 @@ static void context_commit(struct device_handler *handler,
                                        opt->option->id);
                        list_add_tail(&dev->boot_options, &opt->list);
                        talloc_steal(dev, opt);
-                       boot_option_finalise(opt);
+                       boot_option_finalise(handler, opt);
                        discover_server_notify_boot_option_add(handler->server,
                                                                opt->option);
                } else {
@@ -704,13 +746,6 @@ int device_handler_event(struct device_handler *handler,
        return handlers[event->type][event->action](handler, event);
 }
 
-static void boot_status(void *arg, struct boot_status *status)
-{
-       struct device_handler *handler = arg;
-
-       discover_server_notify_boot_status(handler->server, status);
-}
-
 static struct discover_boot_option *find_boot_option_by_id(
                struct device_handler *handler, const char *id)
 {

diff --git a/discover/device-handler.h b/discover/device-handler.h
index f4c911e08892cf64df67dcb84f91f2908b243164..7182f002a203364a937c10ce6d984f943798ffce 100644 (file)
--- a/discover/device-handler.h
+++ b/discover/device-handler.h
@@ -3,6 +3,8 @@
 
 #include <list/list.h>
 
+#define DEFAULT_BOOT_TIMEOUT_SEC       10
+
 struct device_handler;
 struct discover_device;
 struct discover_server;
@@ -10,6 +12,7 @@ struct boot_option;
 struct boot_command;
 struct event;
 struct device;
+struct waitset;
 
 enum conf_method {
        CONF_METHOD_LOCAL_FILE, /* discover by looking at local files on this
@@ -57,7 +60,7 @@ struct discover_context {
 };
 
 struct device_handler *device_handler_init(struct discover_server *server,
-               int dry_run);
+               struct waitset *waitset, int dry_run);
 
 void device_handler_destroy(struct device_handler *devices);
 

diff --git a/discover/pb-discover.c b/discover/pb-discover.c
index 9330da6129e7ad6165fe29fb3899d897804a228f..6966ba4408f45e4ff734fc2ca2f6cf8028ff77d3 100644 (file)
--- a/discover/pb-discover.c
+++ b/discover/pb-discover.c
@@ -151,7 +151,7 @@ int main(int argc, char *argv[])
        if (!server)
                return EXIT_FAILURE;
 
-       handler = device_handler_init(server, opts.dry_run == opt_yes);
+       handler = device_handler_init(server, waitset, opts.dry_run == opt_yes);
        if (!handler)
                return EXIT_FAILURE;
 

diff --git a/test/parser/utils.c b/test/parser/utils.c
index 6f78c2f93e36e8da2b117bd1ee94e64885e49fc2..70a40bbd5b60b2ce40daf3fec41c09b0b5d03a32 100644 (file)
--- a/test/parser/utils.c
+++ b/test/parser/utils.c
@@ -86,7 +86,7 @@ struct parser_test *test_init(void)
        struct parser_test *test;
 
        test = talloc_zero(NULL, struct parser_test);
-       test->handler = device_handler_init(NULL, 0);
+       test->handler = device_handler_init(NULL, NULL, 0);
        test->ctx = test_create_context(test);
 
        return test;