X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=ltt-sessiond%2Fltt-sessiond.h;h=cc6a6ba155ced9e26b6cec7b5f9f4e24a54bb968;hp=491656e852b27650e53f4a2705773d1253cde13c;hb=099e26bda04bd3e02eee5b0a17fc0d7f47e3f8ea;hpb=91d76f53238ce994e91e1213e46c138b1b5529c6 diff --git a/ltt-sessiond/ltt-sessiond.h b/ltt-sessiond/ltt-sessiond.h index 491656e85..cc6a6ba15 100644 --- a/ltt-sessiond/ltt-sessiond.h +++ b/ltt-sessiond/ltt-sessiond.h @@ -1,15 +1,16 @@ -/* Copyright (C) 2011 - David Goulet +/* + * Copyright (C) 2011 - David Goulet * * 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; either version 2 - * of the License, or (at your option) any later version. - * + * 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 + * 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. @@ -18,34 +19,73 @@ #ifndef _LTT_SESSIOND_H #define _LTT_SESSIOND_H -#define DEFAULT_HOME_DIR "/tmp" -#define DEFAULT_UST_SOCK_DIR "/tmp/ust-app-socks" -#define DEFAULT_GLOBAL_APPS_PIPE "/tmp/ust-app-socks/global" +#define _LGPL_SOURCE +#include + +#include "traceable-app.h" + +#define DEFAULT_HOME_DIR "/tmp" +#define DEFAULT_UST_SOCK_DIR DEFAULT_HOME_DIR "/ust-app-socks" +#define DEFAULT_GLOBAL_APPS_PIPE DEFAULT_UST_SOCK_DIR "/global" +#define DEFAULT_TRACE_OUTPUT DEFAULT_HOME_DIR "/lttng" + +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 }, + { "lttng-probe-syscalls", 0 }, +}; extern const char default_home_dir[], default_tracing_group[], default_ust_sock_dir[], default_global_apps_pipe[]; -/* LTTng trace representation */ -struct ltt_lttng_trace { - struct cds_list_head list; - char trace_name[NAME_MAX]; - struct cds_list_head marker_list; +/* + * This contains extra data needed for processing a command received by the + * session daemon from the lttng client. + */ +struct command_ctx { + int ust_sock; + unsigned int lttng_msg_size; + struct ltt_session *session; + struct lttcomm_lttng_msg *llm; + struct lttcomm_session_msg *lsm; }; -/* UST trace representation */ -struct ltt_ust_trace { - struct cds_list_head list; - int shmid; - pid_t pid; - struct cds_list_head markers; +struct ust_command { + int sock; + struct ust_register_msg reg_msg; + struct cds_wfq_node node; }; -struct ltt_ust_marker { - struct cds_list_head list; - char *name; - char *channel; +/* + * Queue used to enqueue UST registration request (ust_commant) and protected + * by a futex with a scheme N wakers / 1 waiters. See futex.c/.h + */ +struct ust_cmd_queue { + int32_t futex; + struct cds_wfq_queue queue; }; #endif /* _LTT_SESSIOND_H */