X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=libustcomm%2Flibustcomm.h;fp=libustcomm%2Flibustcomm.h;h=0000000000000000000000000000000000000000;hp=0b7f4fd112cad579795fb27d1154d9d73b567264;hb=97b1a726be0f1779f5508543c58521d774312e73;hpb=0b8091d3f931437d2035cfa70549c5aa15b41aac diff --git a/libustcomm/libustcomm.h b/libustcomm/libustcomm.h deleted file mode 100644 index 0b7f4fd11..000000000 --- a/libustcomm/libustcomm.h +++ /dev/null @@ -1,209 +0,0 @@ -/* - * Copyright (C) 2009 Pierre-Marc Fournier - * 2010 Nils Carlson - * 2011 David Goulet - * - * 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 -#include -#include - -#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 */