+++ /dev/null
-/*
- * Copyright (C) 2009 Pierre-Marc Fournier
- * 2010 Nils Carlson <nils.carlson@ericsson.com>
- * 2011 David Goulet <david.goulet@polymtl.ca>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef _LTT_LIBUSTCOMM_H
-#define _LTT_LIBUSTCOMM_H
-
-#include <sys/types.h>
-#include <sys/un.h>
-#include <urcu/list.h>
-
-#include "lttng-share.h"
-
-#define UST_SOCK_DIR "/tmp/ust-app-socks"
-#define USER_TMP_DIR "/tmp"
-#define USER_SOCK_DIR_BASE "ust-socks-"
-#define USER_SOCK_DIR USER_TMP_DIR "/" USER_SOCK_DIR_BASE
-
-struct ustcomm_sock {
- struct cds_list_head list;
- int fd;
- int epoll_fd;
-};
-
-struct ustcomm_header {
- int command;
- long size;
- int result;
- int fd_included;
-};
-
-#define USTCOMM_BUFFER_SIZE ((1 << 12) - sizeof(struct ustcomm_header))
-
-/*
- * Specify a sata size that leaves margin at the end of a buffer
- * in order to make sure that we never have more data than
- * will fit in the buffer AND that the last chars (due to a
- * pre-receive memset) will always be 0, terminating any string
- */
-#define USTCOMM_DATA_SIZE (USTCOMM_BUFFER_SIZE - 20 * sizeof(void *))
-
-enum ustcomm_tracectl_commands {
- ALLOC_TRACE,
- CONSUME_BUFFER,
- CREATE_TRACE,
- DESTROY_TRACE,
- DISABLE_MARKER,
- ENABLE_MARKER,
- EXIT,
- FORCE_SUBBUF_SWITCH,
- GET_BUF_SHMID_PIPE_FD,
- GET_PIDUNIQUE,
- GET_SOCK_PATH,
- GET_SUBBUFFER,
- GET_SUBBUF_NUM_SIZE,
- LIST_MARKERS,
- LIST_TRACE_EVENTS,
- LOAD_PROBE_LIB,
- NOTIFY_BUF_MAPPED,
- PRINT_MARKERS,
- PRINT_TRACE_EVENTS,
- PUT_SUBBUFFER,
- SETUP_TRACE,
- SET_SOCK_PATH,
- SET_SUBBUF_NUM,
- SET_SUBBUF_SIZE,
- START,
- START_TRACE,
- STOP_TRACE,
-};
-
-struct ustcomm_single_field {
- char *field;
- char data[USTCOMM_DATA_SIZE];
-};
-
-struct ustcomm_channel_info {
- char *trace;
- char *channel;
- unsigned int subbuf_size;
- unsigned int subbuf_num;
- char data[USTCOMM_DATA_SIZE];
-};
-
-struct ustcomm_buffer_info {
- char *trace;
- char *channel;
- int ch_cpu;
- pid_t pid;
- int buf_shmid;
- int buf_struct_shmid;
- long consumed_old;
- char data[USTCOMM_DATA_SIZE];
-};
-
-struct ustcomm_ust_marker_info {
- char *trace;
- char *channel;
- char *ust_marker;
- char data[USTCOMM_DATA_SIZE];
-};
-
-struct ustcomm_pidunique {
- s64 pidunique;
-};
-
-struct ustcomm_notify_buf_mapped {
- char data[USTCOMM_DATA_SIZE];
-};
-
-/* Create and delete sockets */
-struct ustcomm_sock *ustcomm_init_sock(int fd, int epoll_fd, struct cds_list_head *list);
-void ustcomm_del_sock(struct ustcomm_sock *sock, int keep_in_epoll);
-
-/* Create and delete named sockets */
-struct ustcomm_sock *ustcomm_init_named_socket(const char *name, int epoll_fd);
-void ustcomm_del_named_sock(struct ustcomm_sock *sock, int keep_socket_file);
-
-/* Send and receive functions for file descriptors */
-int ustcomm_send_fd(int sock, const struct ustcomm_header *header,
- const char *data, int *fd);
-int ustcomm_recv_fd(int sock, struct ustcomm_header *header,
- char *data, int *fd);
-
-/* Normal send and receive functions */
-int ustcomm_send(int sock, const struct ustcomm_header *header,
- const char *data);
-int ustcomm_recv(int sock, struct ustcomm_header *header,
- char *data);
-
-/* Receive and allocate data, not to be used inside libust */
-int ustcomm_recv_alloc(int sock, struct ustcomm_header *header, char **data);
-
-/* Request function, send and receive */
-int ustcomm_req(int sock,
- const struct ustcomm_header *req_header,
- const char *req_data,
- struct ustcomm_header *res_header,
- char *res_data);
-
-int ustcomm_request_consumer(pid_t pid, const char *channel);
-
-/* Returns the current users socket directory, must be freed */
-char *ustcomm_user_sock_dir(void);
-
-/* Get the st_m_time from proc*/
-time_t ustcomm_pid_st_mtime(pid_t pid);
-
-/* Check that a socket is live */
-int ustcomm_is_socket_live(char *sock_name, pid_t *read_pid);
-
-int ustcomm_connect_app(pid_t pid, int *app_fd);
-int ustcomm_connect_path(const char *path, int *connection_fd);
-
-/* String serialising functions, printf straight into a buffer */
-#define USTCOMM_POISON_PTR (void *)0x19831018
-
-char *ustcomm_print_data(char *data_field, int field_size,
- int *offset, const char *format, ...);
-char *ustcomm_restore_ptr(char *ptr, char *data_field, int data_field_size);
-
-#define COMPUTE_MSG_SIZE(struct_ptr, offset) \
- (size_t) (long)(struct_ptr)->data - (long)(struct_ptr) + (offset)
-
-/* Packing and unpacking functions, making life easier */
-int ustcomm_pack_single_field(struct ustcomm_header *header,
- struct ustcomm_single_field *sf, const char *trace);
-
-int ustcomm_unpack_single_field(struct ustcomm_single_field *sf);
-
-int ustcomm_pack_channel_info(struct ustcomm_header *header,
- struct ustcomm_channel_info *ch_inf,
- const char *trace, const char *channel);
-
-int ustcomm_unpack_channel_info(struct ustcomm_channel_info *ch_inf);
-
-int ustcomm_pack_buffer_info(struct ustcomm_header *header,
- struct ustcomm_buffer_info *buf_inf,
- const char *trace,
- const char *channel,
- int channel_cpu);
-
-int ustcomm_unpack_buffer_info(struct ustcomm_buffer_info *buf_inf);
-
-int ustcomm_pack_ust_marker_info(struct ustcomm_header *header,
- struct ustcomm_ust_marker_info *ust_marker_inf,
- const char *trace,
- const char *channel,
- const char *ust_marker);
-
-int ustcomm_unpack_ust_marker_info(struct ustcomm_ust_marker_info *ust_marker_inf);
-
-#endif /* _LTT_LIBUSTCOMM_H */
projects / lttng-tools.git / blobdiff