+++ /dev/null
-/*
- * Copyright (C) 2012 - David Goulet <dgoulet@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 _CONSUMER_H
-#define _CONSUMER_H
-
-#include <common/consumer.h>
-#include <common/hashtable/hashtable.h>
-#include <lttng/lttng.h>
-
-#include "health.h"
-
-enum consumer_dst_type {
- CONSUMER_DST_LOCAL,
- CONSUMER_DST_NET,
-};
-
-struct consumer_socket {
- /* File descriptor */
- int fd;
- /*
- * To use this socket (send/recv), this lock MUST be acquired.
- */
- pthread_mutex_t *lock;
-
- /*
- * Indicates if the socket was registered by a third part
- * (REGISTER_CONSUMER) or is the spawn consumer of the session daemon.
- * During the destroy phase of a consumer output, we close the socket if
- * this flag is set to 1 since we don't need the fd anymore.
- */
- unsigned int registered;
-
- struct lttng_ht_node_ulong node;
-};
-
-struct consumer_data {
- enum lttng_consumer_type type;
-
- pthread_t thread; /* Worker thread interacting with the consumer */
-
- /* Conditions used by the consumer thread to indicate readiness. */
- pthread_cond_t cond;
- pthread_condattr_t condattr;
- pthread_mutex_t cond_mutex;
-
- /*
- * This is a flag condition indicating that the consumer thread is ready
- * and connected to the lttng-consumerd daemon. This flag MUST only be
- * updated by locking the condition mutex above or before spawning a
- * consumer thread.
- *
- * A value of 0 means that the thread is NOT ready. A value of 1 means that
- * the thread consumer did connect successfully to the lttng-consumerd
- * daemon. A negative value indicates that there is been an error and the
- * thread has likely quit.
- */
- int consumer_thread_is_ready;
-
- /* Mutex to control consumerd pid assignation */
- pthread_mutex_t pid_mutex;
- pid_t pid;
-
- int err_sock;
- int cmd_sock;
-
- /* consumer error and command Unix socket path */
- char err_unix_sock_path[PATH_MAX];
- char cmd_unix_sock_path[PATH_MAX];
-
- /* Health check of the thread */
- struct health_state health;
-
- /* communication lock */
- pthread_mutex_t lock;
-};
-
-/*
- * Network URIs
- */
-struct consumer_net {
- /*
- * Indicate if URI type is set. Those flags should only be set when the
- * created URI is done AND valid.
- */
- int control_isset;
- int data_isset;
-
- /*
- * The following two URIs MUST have the same destination address for
- * network streaming to work. Network hop are not yet supported.
- */
-
- /* Control path for network streaming. */
- struct lttng_uri control;
-
- /* Data path for network streaming. */
- struct lttng_uri data;
-
- /* Flag if network sockets were sent to the consumer. */
- unsigned int control_sock_sent;
- unsigned int data_sock_sent;
-};
-
-/*
- * Consumer output object describing where and how to send data.
- */
-struct consumer_output {
- /* If the consumer is enabled meaning that should be used */
- unsigned int enabled;
- enum consumer_dst_type type;
-
- /*
- * The net_seq_index is the index of the network stream on the consumer
- * side. It tells the consumer which streams goes to which relayd with this
- * index. The relayd sockets are index with it on the consumer side.
- */
- int net_seq_index;
-
- /*
- * Subdirectory path name used for both local and network consumer.
- */
- char subdir[PATH_MAX];
-
- /*
- * Hashtable of consumer_socket index by the file descriptor value. For
- * multiarch consumer support, we can have more than one consumer (ex: 32
- * and 64 bit).
- */
- struct lttng_ht *socks;
-
- union {
- char trace_path[PATH_MAX];
- struct consumer_net net;
- } dst;
-};
-
-struct consumer_socket *consumer_find_socket(int key,
- struct consumer_output *consumer);
-struct consumer_socket *consumer_allocate_socket(int fd);
-void consumer_add_socket(struct consumer_socket *sock,
- struct consumer_output *consumer);
-void consumer_del_socket(struct consumer_socket *sock,
- struct consumer_output *consumer);
-void consumer_destroy_socket(struct consumer_socket *sock);
-
-struct consumer_output *consumer_create_output(enum consumer_dst_type type);
-struct consumer_output *consumer_copy_output(struct consumer_output *obj);
-void consumer_destroy_output(struct consumer_output *obj);
-int consumer_set_network_uri(struct consumer_output *obj,
- struct lttng_uri *uri);
-int consumer_send_fds(struct consumer_socket *sock, int *fds, size_t nb_fd);
-int consumer_send_stream(struct consumer_socket *sock,
- struct consumer_output *dst, struct lttcomm_consumer_msg *msg,
- int *fds, size_t nb_fd);
-int consumer_send_channel(struct consumer_socket *sock,
- struct lttcomm_consumer_msg *msg);
-int consumer_send_relayd_socket(struct consumer_socket *consumer_sock,
- struct lttcomm_sock *sock, struct consumer_output *consumer,
- enum lttng_stream_type type, unsigned int session_id);
-int consumer_send_destroy_relayd(struct consumer_socket *sock,
- struct consumer_output *consumer);
-int consumer_recv_status_reply(struct consumer_socket *sock);
-void consumer_output_send_destroy_relayd(struct consumer_output *consumer);
-int consumer_create_socket(struct consumer_data *data,
- struct consumer_output *output);
-int consumer_set_subdir(struct consumer_output *consumer,
- const char *session_name);
-
-void consumer_init_stream_comm_msg(struct lttcomm_consumer_msg *msg,
- enum lttng_consumer_command cmd,
- int channel_key,
- int stream_key,
- uint32_t state,
- enum lttng_event_output output,
- uint64_t mmap_len,
- uid_t uid,
- gid_t gid,
- int net_index,
- unsigned int metadata_flag,
- const char *name,
- const char *pathname,
- unsigned int session_id);
-void consumer_init_channel_comm_msg(struct lttcomm_consumer_msg *msg,
- enum lttng_consumer_command cmd,
- int channel_key,
- uint64_t max_sb_size,
- uint64_t mmap_len,
- const char *name,
- unsigned int nb_init_streams);
-int consumer_is_data_pending(unsigned int id,
- struct consumer_output *consumer);
-
-#endif /* _CONSUMER_H */
projects / lttng-tools.git / blobdiff