[lttng-tools.git] / lttng-sessiond / ust-app.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; only version 2
 * of the License.
 *
 * 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_UST_APP_H 
#define _LTT_UST_APP_H

#include <stdint.h>
#include <urcu/list.h>

#include "trace-ust.h"

/*
 * Application registration data structure.
 */
struct ust_register_msg {
	uint32_t major;
	uint32_t minor;
	pid_t pid;
	pid_t ppid;
	uid_t uid;
	gid_t gid;
	char name[16];
};

/*
 * Global applications HT used by the session daemon.
 */
struct cds_lfht *ust_app_ht;

struct cds_lfht *ust_app_sock_key_map;

struct ust_app_key {
	pid_t pid;
	int sock;
	struct cds_lfht_node node;
};

struct ust_app_event {
	int enabled;
	int handle;
	struct lttng_ust_object_data *obj;
	char name[LTTNG_UST_SYM_NAME_LEN];
	struct cds_lfht *ctx;
	struct cds_lfht_node node;
};

struct ust_app_channel {
	int enabled;
	int handle;
	char name[LTTNG_UST_SYM_NAME_LEN];
	struct lttng_ust_channel attr;
	struct lttng_ust_object_data *obj;
	struct ltt_ust_stream_list streams;
	struct cds_lfht *ctx;
	struct cds_lfht *events;
	struct cds_lfht_node node;
};

struct ust_app_session {
	int enabled;
	int handle;   /* Used has unique identifier */
	unsigned int uid;
	struct ltt_ust_metadata *metadata;
	struct lttng_ust_object_data *obj;
	struct cds_lfht *channels; /* Registered channels */
	struct cds_lfht_node node;
};

/*
 * Registered traceable applications. Libust registers to the session daemon
 * and a linked list is kept of all running traceable app.
 */
struct ust_app {
	pid_t ppid;
	uid_t uid;           /* User ID that owns the apps */
	gid_t gid;           /* Group ID that owns the apps */
	uint32_t v_major;    /* Verion major number */
	uint32_t v_minor;    /* Verion minor number */
	char name[17];       /* Process name (short) */
	struct cds_lfht *sessions;
	struct cds_lfht_node node;
	struct ust_app_key key;
};

#ifdef HAVE_LIBLTTNG_UST_CTL

int ust_app_register(struct ust_register_msg *msg, int sock);
void ust_app_unregister(int sock);
int ust_app_add_channel_all(struct ltt_ust_session *usess,
		struct ltt_ust_channel *uchan);
int ust_app_add_event_all(struct ltt_ust_session *usess,
		struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
unsigned long ust_app_list_count(void);
int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app);
int ust_app_start_trace_all(struct ltt_ust_session *usess);
void ust_app_global_update(struct ltt_ust_session *usess, int sock);

void ust_app_clean_list(void);
void ust_app_ht_alloc(void);
struct cds_lfht *ust_app_get_ht(void);
struct ust_app *ust_app_find_by_pid(pid_t pid);

#else /* HAVE_LIBLTTNG_UST_CTL */

static inline
int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app)
{
	return 0;
}
static inline
int ust_app_start_trace_all(struct ltt_ust_session *usess)
{
	return 0;
}
static inline
int ust_app_register(struct ust_register_msg *msg, int sock)
{
	return -ENOSYS;
}
static inline
void ust_app_unregister(int sock)
{
}
static inline
unsigned int ust_app_list_count(void)
{
	return 0;
}
static inline
void ust_app_lock_list(void)
{
}
static inline
void ust_app_unlock_list(void)
{
}
static inline
void ust_app_clean_list(void)
{
}
static inline
struct ust_app_list *ust_app_get_list(void)
{
	return NULL;
}
static inline
struct ust_app *ust_app_get_by_pid(pid_t pid)
{
	return NULL;
}
static inline
int ust_app_add_channel_all(struct ltt_ust_session *usess,
		struct ltt_ust_channel *uchan)
{
	return 0;
}
static inline
int ust_app_add_event_all(struct ltt_ust_session *usess,
		struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
{
	return 0;
}
static inline
struct cds_lfht *ust_app_get_ht(void)
{
	return NULL;
}
static inline
void ust_app_ht_alloc(void)
{
}
static inline
void ust_app_global_update(struct ltt_ust_session *usess, int sock)
{
}

#endif /* HAVE_LIBLTTNG_UST_CTL */

#endif /* _LTT_UST_APP_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; only version 2
	7	* of the License.
	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_UST_APP_H
	20	#define _LTT_UST_APP_H
	21
	22	#include <stdint.h>
	23	#include <urcu/list.h>
	24
	25	#include "trace-ust.h"
	26
	27	/*
	28	* Application registration data structure.
	29	*/
	30	struct ust_register_msg {
	31	uint32_t major;
	32	uint32_t minor;
	33	pid_t pid;
	34	pid_t ppid;
	35	uid_t uid;
	36	gid_t gid;
	37	char name[16];
	38	};
	39
	40	/*
	41	* Global applications HT used by the session daemon.
	42	*/
	43	struct cds_lfht *ust_app_ht;
	44
	45	struct cds_lfht *ust_app_sock_key_map;
	46
	47	struct ust_app_key {
	48	pid_t pid;
	49	int sock;
	50	struct cds_lfht_node node;
	51	};
	52
	53	struct ust_app_event {
	54	int enabled;
	55	int handle;
	56	struct lttng_ust_object_data *obj;
	57	char name[LTTNG_UST_SYM_NAME_LEN];
	58	struct cds_lfht *ctx;
	59	struct cds_lfht_node node;
	60	};
	61
	62	struct ust_app_channel {
	63	int enabled;
	64	int handle;
	65	char name[LTTNG_UST_SYM_NAME_LEN];
	66	struct lttng_ust_channel attr;
	67	struct lttng_ust_object_data *obj;
	68	struct ltt_ust_stream_list streams;
	69	struct cds_lfht *ctx;
	70	struct cds_lfht *events;
	71	struct cds_lfht_node node;
	72	};
	73
	74	struct ust_app_session {
	75	int enabled;
	76	int handle; /* Used has unique identifier */
	77	unsigned int uid;
	78	struct ltt_ust_metadata *metadata;
	79	struct lttng_ust_object_data *obj;
	80	struct cds_lfht channels; / Registered channels */
	81	struct cds_lfht_node node;
	82	};
	83
	84	/*
	85	* Registered traceable applications. Libust registers to the session daemon
	86	* and a linked list is kept of all running traceable app.
	87	*/
	88	struct ust_app {
	89	pid_t ppid;
	90	uid_t uid; /* User ID that owns the apps */
	91	gid_t gid; /* Group ID that owns the apps */
	92	uint32_t v_major; /* Verion major number */
	93	uint32_t v_minor; /* Verion minor number */
	94	char name[17]; /* Process name (short) */
	95	struct cds_lfht *sessions;
	96	struct cds_lfht_node node;
	97	struct ust_app_key key;
	98	};
	99
	100	#ifdef HAVE_LIBLTTNG_UST_CTL
	101
	102	int ust_app_register(struct ust_register_msg *msg, int sock);
	103	void ust_app_unregister(int sock);
	104	int ust_app_add_channel_all(struct ltt_ust_session *usess,
	105	struct ltt_ust_channel *uchan);
	106	int ust_app_add_event_all(struct ltt_ust_session *usess,
	107	struct ltt_ust_channel uchan, struct ltt_ust_event uevent);
	108	unsigned long ust_app_list_count(void);
	109	int ust_app_start_trace(struct ltt_ust_session usess, struct ust_app app);
	110	int ust_app_start_trace_all(struct ltt_ust_session *usess);
	111	void ust_app_global_update(struct ltt_ust_session *usess, int sock);
	112
	113	void ust_app_clean_list(void);
	114	void ust_app_ht_alloc(void);
	115	struct cds_lfht *ust_app_get_ht(void);
	116	struct ust_app *ust_app_find_by_pid(pid_t pid);
	117
	118	#else /* HAVE_LIBLTTNG_UST_CTL */
	119
	120	static inline
	121	int ust_app_start_trace(struct ltt_ust_session usess, struct ust_app app)
	122	{
	123	return 0;
	124	}
	125	static inline
	126	int ust_app_start_trace_all(struct ltt_ust_session *usess)
	127	{
	128	return 0;
	129	}
	130	static inline
	131	int ust_app_register(struct ust_register_msg *msg, int sock)
	132	{
	133	return -ENOSYS;
	134	}
	135	static inline
	136	void ust_app_unregister(int sock)
	137	{
	138	}
	139	static inline
	140	unsigned int ust_app_list_count(void)
	141	{
	142	return 0;
	143	}
	144	static inline
	145	void ust_app_lock_list(void)
	146	{
	147	}
	148	static inline
	149	void ust_app_unlock_list(void)
	150	{
	151	}
	152	static inline
	153	void ust_app_clean_list(void)
	154	{
	155	}
	156	static inline
	157	struct ust_app_list *ust_app_get_list(void)
	158	{
	159	return NULL;
	160	}
	161	static inline
	162	struct ust_app *ust_app_get_by_pid(pid_t pid)
	163	{
	164	return NULL;
	165	}
	166	static inline
	167	int ust_app_add_channel_all(struct ltt_ust_session *usess,
	168	struct ltt_ust_channel *uchan)
	169	{
	170	return 0;
	171	}
	172	static inline
	173	int ust_app_add_event_all(struct ltt_ust_session *usess,
	174	struct ltt_ust_channel uchan, struct ltt_ust_event uevent)
	175	{
	176	return 0;
	177	}
	178	static inline
	179	struct cds_lfht *ust_app_get_ht(void)
	180	{
	181	return NULL;
	182	}
	183	static inline
	184	void ust_app_ht_alloc(void)
	185	{
	186	}
	187	static inline
	188	void ust_app_global_update(struct ltt_ust_session *usess, int sock)
	189	{
	190	}
	191
	192	#endif /* HAVE_LIBLTTNG_UST_CTL */
	193
	194	#endif /* _LTT_UST_APP_H */