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

/*
 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef _LTT_TRACE_H
#define _LTT_TRACE_H

#include "ltt-sessiond.h"
#include "session.h"
#include "lttng-kernel.h"

/* Kernel event list */
struct ltt_kernel_event_list {
	struct cds_list_head head;
};

/* Kernel event */
struct ltt_kernel_event {
	int fd;
	struct lttng_kernel_event *event;
	struct cds_list_head list;
};

/* Kernel channel */
struct ltt_kernel_channel {
	int fd;
	struct lttng_kernel_channel *channel;
	struct ltt_kernel_event_list events_list;
};

/* Metadata */
struct ltt_kernel_metadata {
	int fd;
	struct lttng_kernel_channel *conf;
};

/* Kernel session */
struct ltt_kernel_session {
	int fd;
	struct ltt_kernel_metadata *metadata;
	struct ltt_kernel_channel *channel;
};

/* UST trace representation */
struct ltt_ust_trace {
	struct cds_list_head list;
	char name[NAME_MAX];
	int shmid;
	pid_t pid;
	struct cds_list_head markers;
};

struct ltt_ust_marker {
	struct cds_list_head list;
	char *name;
	char *channel;
};

int get_trace_count_per_session(struct ltt_session *session);
void get_traces_per_session(struct ltt_session *session, struct lttng_trace *traces);
int ust_create_trace(struct command_ctx *cmd_ctx);
int ust_start_trace(struct command_ctx *cmd_ctx);
int ust_stop_trace(struct command_ctx *cmd_ctx);

#endif /* _LTT_TRACE_H */
Commit	Line	Data
	1	/*
	2	* Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version 2
	7	* of the License, or (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	17	*/
	18
	19	#ifndef _LTT_TRACE_H
	20	#define _LTT_TRACE_H
	21
	22	#include "ltt-sessiond.h"
	23	#include "session.h"
	24	#include "lttng-kernel.h"
	25
	26	/* Kernel event list */
	27	struct ltt_kernel_event_list {
	28	struct cds_list_head head;
	29	};
	30
	31	/* Kernel event */
	32	struct ltt_kernel_event {
	33	int fd;
	34	struct lttng_kernel_event *event;
	35	struct cds_list_head list;
	36	};
	37
	38	/* Kernel channel */
	39	struct ltt_kernel_channel {
	40	int fd;
	41	struct lttng_kernel_channel *channel;
	42	struct ltt_kernel_event_list events_list;
	43	};
	44
	45	/* Metadata */
	46	struct ltt_kernel_metadata {
	47	int fd;
	48	struct lttng_kernel_channel *conf;
	49	};
	50
	51	/* Kernel session */
	52	struct ltt_kernel_session {
	53	int fd;
	54	struct ltt_kernel_metadata *metadata;
	55	struct ltt_kernel_channel *channel;
	56	};
	57
	58	/* UST trace representation */
	59	struct ltt_ust_trace {
	60	struct cds_list_head list;
	61	char name[NAME_MAX];
	62	int shmid;
	63	pid_t pid;
	64	struct cds_list_head markers;
	65	};
	66
	67	struct ltt_ust_marker {
	68	struct cds_list_head list;
	69	char *name;
	70	char *channel;
	71	};
	72
	73	int get_trace_count_per_session(struct ltt_session *session);
	74	void get_traces_per_session(struct ltt_session session, struct lttng_trace traces);
	75	int ust_create_trace(struct command_ctx *cmd_ctx);
	76	int ust_start_trace(struct command_ctx *cmd_ctx);
	77	int ust_stop_trace(struct command_ctx *cmd_ctx);
	78
	79	#endif /* _LTT_TRACE_H */