X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Flttng-sessiond.h;h=0f4c6687892792a338d5a455ad6be574cf07486b;hp=238f27a80c0601e57b443e4812db77d8d863a88d;hb=88564da09144e7fd1202fe79aff1371478a69ecf;hpb=60922cb08cc9fb683c6148da4ff91da8c2c0c4d5 diff --git a/src/bin/lttng-sessiond/lttng-sessiond.h b/src/bin/lttng-sessiond/lttng-sessiond.h index 238f27a80..0f4c66878 100644 --- a/src/bin/lttng-sessiond/lttng-sessiond.h +++ b/src/bin/lttng-sessiond/lttng-sessiond.h @@ -1,19 +1,19 @@ /* * Copyright (C) 2011 - David Goulet + * Copyright (C) 2013 - Raphaël Beamonte * - * 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 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 + * 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. + * 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 _LTT_SESSIOND_H @@ -24,41 +24,21 @@ #include #include +#include +#include #include "session.h" #include "ust-app.h" - -struct module_param { - const char *name; - int required; -}; - -/* LTTng kernel tracer modules list */ -const struct module_param kernel_modules_list[] = { - { "lttng-ftrace", 0 }, - { "lttng-kprobes", 0 }, - { "lttng-kretprobes", 0 }, - { "lib-ring-buffer", 1 }, - { "ltt-relay", 1 }, - { "ltt-ring-buffer-client-discard", 1 }, - { "ltt-ring-buffer-client-overwrite", 1 }, - { "ltt-ring-buffer-metadata-client", 1 }, - { "ltt-ring-buffer-client-mmap-discard", 1 }, - { "ltt-ring-buffer-client-mmap-overwrite", 1 }, - { "ltt-ring-buffer-metadata-mmap-client", 1 }, - { "lttng-probe-lttng", 1 }, - { "lttng-types", 0 }, - { "lttng-probe-block", 0 }, - { "lttng-probe-irq", 0 }, - { "lttng-probe-kvm", 0 }, - { "lttng-probe-sched", 0 }, -}; +#include "version.h" extern const char default_home_dir[], default_tracing_group[], default_ust_sock_dir[], default_global_apps_pipe[]; +/* Set in main.c at boot time of the daemon */ +extern int kernel_tracer_fd; + /* * This contains extra data needed for processing a command received by the * session daemon from the lttng client. @@ -66,10 +46,10 @@ extern const char default_home_dir[], struct command_ctx { int ust_sock; unsigned int lttng_msg_size; - struct ucred creds; struct ltt_session *session; struct lttcomm_lttng_msg *llm; struct lttcomm_session_msg *lsm; + lttng_sock_cred creds; }; struct ust_command { @@ -87,4 +67,62 @@ struct ust_cmd_queue { struct cds_wfq_queue queue; }; +/* + * This is the wait queue containing wait nodes during the application + * registration process. + */ +struct ust_reg_wait_queue { + unsigned long count; + struct cds_list_head head; +}; + +/* + * Use by the dispatch registration to queue UST command socket to wait for the + * notify socket. + */ +struct ust_reg_wait_node { + struct ust_app *app; + struct cds_list_head head; +}; + +/* + * This pipe is used to inform the thread managing application notify + * communication that a command is queued and ready to be processed. + */ +extern int apps_cmd_notify_pipe[2]; + +/* + * Used to notify that a hash table needs to be destroyed by dedicated + * thread. Required by design because we don't want to move destroy + * paths outside of large RCU read-side lock paths, and destroy cannot + * be called by call_rcu thread, because it may hang (waiting for + * call_rcu completion). + */ +extern int ht_cleanup_pipe[2]; + +/* + * Populated when the daemon starts with the current page size of the system. + */ +extern long page_size; + +/* + * Global set once in main(). JUL TCP port for registration. + */ +extern unsigned int jul_tcp_port; + +/* + * Section name to look for in the daemon configuration file. + */ +extern const char * const config_section_name; + +/* Is this daemon root or not. */ +extern int is_root; + +int sessiond_set_thread_pollset(struct lttng_poll_event *events, size_t size); +int sessiond_check_thread_quit_pipe(int fd, uint32_t events); + +void *thread_ht_cleanup(void *data); + +void sessiond_notify_ready(void); + #endif /* _LTT_SESSIOND_H */