X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fnotification-thread-commands.h;fp=src%2Fbin%2Flttng-sessiond%2Fnotification-thread-commands.h;h=fc7e90bcb95ecf319c89e6bd8979602eddaac0ef;hp=0000000000000000000000000000000000000000;hb=ab0ee2ca29394fa28284b94cc3c598960660404f;hpb=427392b43cfe21d440808494f87564fc0224dd70

diff --git a/src/bin/lttng-sessiond/notification-thread-commands.h b/src/bin/lttng-sessiond/notification-thread-commands.h
new file mode 100644
index 000000000..fc7e90bcb
--- /dev/null
+++ b/src/bin/lttng-sessiond/notification-thread-commands.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef NOTIFICATION_THREAD_COMMANDS_H
+#define NOTIFICATION_THREAD_COMMANDS_H
+
+#include <lttng/domain.h>
+#include <lttng/lttng-error.h>
+#include <urcu/rculfhash.h>
+#include "notification-thread.h"
+
+struct notification_thread_data;
+struct lttng_trigger;
+
+enum notification_thread_command_type {
+	NOTIFICATION_COMMAND_TYPE_REGISTER_TRIGGER,
+	NOTIFICATION_COMMAND_TYPE_UNREGISTER_TRIGGER,
+	NOTIFICATION_COMMAND_TYPE_ADD_CHANNEL,
+	NOTIFICATION_COMMAND_TYPE_REMOVE_CHANNEL,
+	NOTIFICATION_COMMAND_TYPE_QUIT,
+};
+
+struct channel_key {
+	uint64_t key;
+	enum lttng_domain_type domain;
+};
+
+struct channel_info {
+	struct channel_key key;
+	char *session_name;
+	uid_t uid;
+	gid_t gid;
+	char *channel_name;
+	uint64_t capacity;
+	struct cds_lfht_node channels_ht_node;
+};
+
+struct notification_thread_command {
+	struct cds_list_head cmd_list_node;
+
+	enum notification_thread_command_type type;
+	union {
+		/* Register/Unregister trigger. */
+		struct lttng_trigger *trigger;
+		/* Add channel. */
+		struct channel_info add_channel;
+		/* Remove channel. */
+		struct {
+			uint64_t key;
+			enum lttng_domain_type domain;
+		} remove_channel;
+	} parameters;
+
+	/* Futex on which to wait for command reply (optional). */
+	int32_t reply_futex;
+	enum lttng_error_code reply_code;
+};
+
+enum lttng_error_code notification_thread_command_register_trigger(
+		struct notification_thread_handle *handle,
+		struct lttng_trigger *trigger);
+
+enum lttng_error_code notification_thread_command_unregister_trigger(
+		struct notification_thread_handle *handle,
+		struct lttng_trigger *trigger);
+
+enum lttng_error_code notification_thread_command_add_channel(
+		struct notification_thread_handle *handle,
+		char *session_name, uid_t uid, gid_t gid,
+		char *channel_name, uint64_t key,
+		enum lttng_domain_type domain, uint64_t capacity);
+
+enum lttng_error_code notification_thread_command_remove_channel(
+		struct notification_thread_handle *handle,
+		uint64_t key, enum lttng_domain_type domain);
+
+void notification_thread_command_quit(
+		struct notification_thread_handle *handle);
+
+#endif /* NOTIFICATION_THREAD_COMMANDS_H */