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-rw-r--r--discover/device-handler.c92
1 files changed, 87 insertions, 5 deletions
diff --git a/discover/device-handler.c b/discover/device-handler.c
index 29c2371..0f8dc58 100644
--- a/discover/device-handler.c
+++ b/discover/device-handler.c
@@ -1,4 +1,5 @@
+#include <assert.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
@@ -24,8 +25,8 @@
struct device_handler {
struct discover_server *server;
- struct device *devices;
- int n_devices;
+ struct device **devices;
+ unsigned int n_devices;
struct list contexts;
};
@@ -35,13 +36,88 @@ struct mount_map {
char *mount_point;
};
-int device_handler_get_current_devices(struct device_handler *handler,
- const struct device **devices)
+/**
+ * device_handler_add - Add a device to the handler device array.
+ */
+
+static void device_handler_add(struct device_handler *handler,
+ struct device *device)
+{
+ handler->n_devices++;
+ handler->devices = talloc_realloc(handler, handler->devices,
+ struct device *, handler->n_devices);
+ handler->devices[handler->n_devices - 1] = device;
+}
+
+/**
+ * device_handler_remove - Remove a device from the handler device array.
+ */
+
+static void device_handler_remove(struct device_handler *handler,
+ struct device *device)
+{
+ unsigned int i;
+
+ for (i = 0; i < handler->n_devices; i++)
+ if (handler->devices[i] == device)
+ break;
+
+ if (i < handler->n_devices) {
+ assert(0 && "unknown device");
+ return;
+ }
+
+ handler->n_devices--;
+ memmove(&handler->devices[i], &handler->devices[i + 1],
+ (handler->n_devices - i) * sizeof(handler->devices[0]));
+ handler->devices = talloc_realloc(handler, handler->devices,
+ struct device *, handler->n_devices);
+}
+
+/**
+ * device_handler_find - Find a handler device by id.
+ */
+
+static struct device *device_handler_find(struct device_handler *handler,
+ const char *id)
+{
+ unsigned int i;
+
+ assert(id);
+
+ for (i = 0; i < handler->n_devices; i++)
+ if (handler->devices[i]->id
+ && streq(handler->devices[i]->id, id))
+ return handler->devices[i];
+
+ assert(0 && "unknown device");
+ return NULL;
+}
+
+/**
+ * device_handler_get_device_count - Get the count of current handler devices.
+ */
+
+int device_handler_get_device_count(const struct device_handler *handler)
{
- *devices = handler->devices;
return handler->n_devices;
}
+/**
+ * device_handler_get_device - Get a handler device by index.
+ */
+
+const struct device *device_handler_get_device(
+ const struct device_handler *handler, unsigned int index)
+{
+ if (index >= handler->n_devices) {
+ assert(0 && "bad index");
+ return NULL;
+ }
+
+ return handler->devices[index];
+}
+
static int mkdir_recursive(const char *dir)
{
struct stat statbuf;
@@ -317,6 +393,9 @@ static int handle_add_event(struct device_handler *handler,
/* run the parsers */
iterate_parsers(ctx);
+ /* add device to handler device array */
+ device_handler_add(handler, ctx->device);
+
discover_server_notify_add(handler->server, ctx->device);
return 0;
@@ -333,6 +412,9 @@ static int handle_remove_event(struct device_handler *handler,
discover_server_notify_remove(handler->server, ctx->device);
+ /* remove device from handler device array */
+ device_handler_remove(handler, ctx->device);
+
talloc_free(ctx);
return 0;
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