[babeltrace.git] / formats / lttng-live / lttng-live.h

#ifndef _LTTNG_LIVE_H
#define _LTTNG_LIVE_H

/*
 * Copyright 2013 Julien Desfossez <julien.desfossez@efficios.com>
 *                Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <stdint.h>
#include <sys/param.h>
#include "lttng-viewer-abi.h"

#define LTTNG_DEFAULT_NETWORK_VIEWER_PORT	5344

#define LTTNG_LIVE_MAJOR			2
#define LTTNG_LIVE_MINOR			4

/*
 * The lttng-live output file pointer is currently hardcoded to stdout,
 * and is expected to be hardcoded to this by fflush() performed between
 * each packet.
 */
#define LTTNG_LIVE_OUTPUT_FP			stdout

struct lttng_live_ctx {
	char traced_hostname[MAXNAMLEN];
	char session_name[MAXNAMLEN];
	char relay_hostname[MAXNAMLEN];
	int control_sock;
	int port;
	/* Protocol version to use for this connection. */
	uint32_t major;
	uint32_t minor;
	struct lttng_live_session *session;
	struct bt_context *bt_ctx;
	GArray *session_ids;
};

struct lttng_live_viewer_stream {
	uint64_t id;
	uint64_t mmap_size;
	uint64_t ctf_stream_id;
	FILE *metadata_fp_write;
	ssize_t metadata_len;
	int metadata_flag;
	int data_pending;
	struct lttng_live_session *session;
	struct lttng_live_ctf_trace *ctf_trace;
	struct lttng_viewer_index current_index;
	char path[PATH_MAX];
};

struct lttng_live_session {
	uint64_t live_timer_interval;
	uint64_t stream_count;
	struct lttng_live_ctx *ctx;
	struct lttng_live_viewer_stream *streams;
	GHashTable *ctf_traces;
};

struct lttng_live_ctf_trace {
	uint64_t ctf_trace_id;
	struct lttng_live_viewer_stream *metadata_stream;
	GPtrArray *streams;
	FILE *metadata_fp;
	struct bt_trace_handle *handle;
	int trace_id;
	int in_use;
};

/* Just used in listing. */
struct lttng_live_relay_session {
	uint32_t streams;
	uint32_t clients;
	uint32_t timer;
	char *name;
	char *hostname;
};

int lttng_live_connect_viewer(struct lttng_live_ctx *ctx);
int lttng_live_establish_connection(struct lttng_live_ctx *ctx);
int lttng_live_list_sessions(struct lttng_live_ctx *ctx, const char *path);
int lttng_live_attach_session(struct lttng_live_ctx *ctx, uint64_t id);
int lttng_live_read(struct lttng_live_ctx *ctx);
int lttng_live_get_new_streams(struct lttng_live_ctx *ctx, uint64_t id);
int lttng_live_should_quit(void);

#endif /* _LTTNG_LIVE_H */
Commit	Line	Data
	1	#ifndef _LTTNG_LIVE_H
	2	#define _LTTNG_LIVE_H
	3
	4	/*
	5	* Copyright 2013 Julien Desfossez <julien.desfossez@efficios.com>
	6	* Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	7	*
	8	* Permission is hereby granted, free of charge, to any person obtaining a copy
	9	* of this software and associated documentation files (the "Software"), to deal
	10	* in the Software without restriction, including without limitation the rights
	11	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	12	* copies of the Software, and to permit persons to whom the Software is
	13	* furnished to do so, subject to the following conditions:
	14	*
	15	* The above copyright notice and this permission notice shall be included in
	16	* all copies or substantial portions of the Software.
	17	*
	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	20	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	21	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	22	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	23	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	24	* SOFTWARE.
	25	*/
	26
	27	#include <stdint.h>
	28	#include <sys/param.h>
	29	#include "lttng-viewer-abi.h"
	30
	31	#define LTTNG_DEFAULT_NETWORK_VIEWER_PORT 5344
	32
	33	#define LTTNG_LIVE_MAJOR 2
	34	#define LTTNG_LIVE_MINOR 4
	35
	36	/*
	37	* The lttng-live output file pointer is currently hardcoded to stdout,
	38	* and is expected to be hardcoded to this by fflush() performed between
	39	* each packet.
	40	*/
	41	#define LTTNG_LIVE_OUTPUT_FP stdout
	42
	43	struct lttng_live_ctx {
	44	char traced_hostname[MAXNAMLEN];
	45	char session_name[MAXNAMLEN];
	46	char relay_hostname[MAXNAMLEN];
	47	int control_sock;
	48	int port;
	49	/* Protocol version to use for this connection. */
	50	uint32_t major;
	51	uint32_t minor;
	52	struct lttng_live_session *session;
	53	struct bt_context *bt_ctx;
	54	GArray *session_ids;
	55	};
	56
	57	struct lttng_live_viewer_stream {
	58	uint64_t id;
	59	uint64_t mmap_size;
	60	uint64_t ctf_stream_id;
	61	FILE *metadata_fp_write;
	62	ssize_t metadata_len;
	63	int metadata_flag;
	64	int data_pending;
	65	struct lttng_live_session *session;
	66	struct lttng_live_ctf_trace *ctf_trace;
	67	struct lttng_viewer_index current_index;
	68	char path[PATH_MAX];
	69	};
	70
	71	struct lttng_live_session {
	72	uint64_t live_timer_interval;
	73	uint64_t stream_count;
	74	struct lttng_live_ctx *ctx;
	75	struct lttng_live_viewer_stream *streams;
	76	GHashTable *ctf_traces;
	77	};
	78
	79	struct lttng_live_ctf_trace {
	80	uint64_t ctf_trace_id;
	81	struct lttng_live_viewer_stream *metadata_stream;
	82	GPtrArray *streams;
	83	FILE *metadata_fp;
	84	struct bt_trace_handle *handle;
	85	int trace_id;
	86	int in_use;
	87	};
	88
	89	/* Just used in listing. */
	90	struct lttng_live_relay_session {
	91	uint32_t streams;
	92	uint32_t clients;
	93	uint32_t timer;
	94	char *name;
	95	char *hostname;
	96	};
	97
	98	int lttng_live_connect_viewer(struct lttng_live_ctx *ctx);
	99	int lttng_live_establish_connection(struct lttng_live_ctx *ctx);
	100	int lttng_live_list_sessions(struct lttng_live_ctx ctx, const char path);
	101	int lttng_live_attach_session(struct lttng_live_ctx *ctx, uint64_t id);
	102	int lttng_live_read(struct lttng_live_ctx *ctx);
	103	int lttng_live_get_new_streams(struct lttng_live_ctx *ctx, uint64_t id);
	104	int lttng_live_should_quit(void);
	105
	106	#endif /* _LTTNG_LIVE_H */