+++ /dev/null
-/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- *
- * 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 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., 59 Temple
- * Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <urcu/list.h>
-
-#include <lttng-sessiond-comm.h>
-#include <lttngerr.h>
-
-#ifdef CONFIG_LTTNG_TOOLS_HAVE_UST
-#include <ust/lttng-ust-ctl.h>
-#include <ust/lttng-ust-abi.h>
-#else
-#include "lttng-ust-ctl.h"
-#include "lttng-ust-abi.h"
-#endif
-
-#include "context.h"
-#include "hashtable.h"
-#include "kernel-ctl.h"
-
-/*
- * Add kernel context to an event of a specific channel.
- */
-static int add_kctx_to_event(struct lttng_kernel_context *kctx,
- struct ltt_kernel_channel *kchan, char *event_name)
-{
- int ret, found = 0;
- struct ltt_kernel_event *kevent;
-
- DBG("Add kernel context to event %s", event_name);
-
- kevent = trace_kernel_get_event_by_name(event_name, kchan);
- if (kevent != NULL) {
- ret = kernel_add_event_context(kevent, kctx);
- if (ret < 0) {
- goto error;
- }
- found = 1;
- }
-
- ret = found;
-
-error:
- return ret;
-}
-
-/*
- * Add kernel context to all channel.
- *
- * If event_name is specified, add context to event instead.
- */
-static int add_kctx_all_channels(struct ltt_kernel_session *ksession,
- struct lttng_kernel_context *kctx, char *event_name)
-{
- int ret, no_event = 0, found = 0;
- struct ltt_kernel_channel *kchan;
-
- if (strlen(event_name) == 0) {
- no_event = 1;
- }
-
- DBG("Adding kernel context to all channels (event: %s)", event_name);
-
- /* Go over all channels */
- cds_list_for_each_entry(kchan, &ksession->channel_list.head, list) {
- if (no_event) {
- ret = kernel_add_channel_context(kchan, kctx);
- if (ret < 0) {
- ret = LTTCOMM_KERN_CONTEXT_FAIL;
- goto error;
- }
- } else {
- ret = add_kctx_to_event(kctx, kchan, event_name);
- if (ret < 0) {
- ret = LTTCOMM_KERN_CONTEXT_FAIL;
- goto error;
- } else if (ret == 1) {
- /* Event found and context added */
- found = 1;
- break;
- }
- }
- }
-
- if (!found && !no_event) {
- ret = LTTCOMM_NO_EVENT;
- goto error;
- }
-
- ret = LTTCOMM_OK;
-
-error:
- return ret;
-}
-
-/*
- * Add kernel context to a specific channel.
- *
- * If event_name is specified, add context to that event.
- */
-static int add_kctx_to_channel(struct lttng_kernel_context *kctx,
- struct ltt_kernel_channel *kchan, char *event_name)
-{
- int ret, no_event = 0, found = 0;
-
- if (strlen(event_name) == 0) {
- no_event = 1;
- }
-
- DBG("Add kernel context to channel '%s', event '%s'",
- kchan->channel->name, event_name);
-
- if (no_event) {
- ret = kernel_add_channel_context(kchan, kctx);
- if (ret < 0) {
- ret = LTTCOMM_KERN_CONTEXT_FAIL;
- goto error;
- }
- } else {
- ret = add_kctx_to_event(kctx, kchan, event_name);
- if (ret < 0) {
- ret = LTTCOMM_KERN_CONTEXT_FAIL;
- goto error;
- } else if (ret == 1) {
- /* Event found and context added */
- found = 1;
- }
- }
-
- if (!found && !no_event) {
- ret = LTTCOMM_NO_EVENT;
- goto error;
- }
-
- ret = LTTCOMM_OK;
-
-error:
- return ret;
-}
-
-/*
- * Add kernel context to tracer.
- */
-int context_kernel_add(struct ltt_kernel_session *ksession,
- struct lttng_event_context *ctx, char *event_name,
- char *channel_name)
-{
- int ret;
- struct ltt_kernel_channel *kchan;
- struct lttng_kernel_context kctx;
-
- /* Setup kernel context structure */
- kctx.ctx = ctx->ctx;
- kctx.u.perf_counter.type = ctx->u.perf_counter.type;
- kctx.u.perf_counter.config = ctx->u.perf_counter.config;
- strncpy(kctx.u.perf_counter.name, ctx->u.perf_counter.name,
- LTTNG_SYMBOL_NAME_LEN);
- kctx.u.perf_counter.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
-
- if (strlen(channel_name) == 0) {
- ret = add_kctx_all_channels(ksession, &kctx, event_name);
- if (ret != LTTCOMM_OK) {
- goto error;
- }
- } else {
- /* Get kernel channel */
- kchan = trace_kernel_get_channel_by_name(channel_name, ksession);
- if (kchan == NULL) {
- ret = LTTCOMM_KERN_CHAN_NOT_FOUND;
- goto error;
- }
-
- ret = add_kctx_to_channel(&kctx, kchan, event_name);
- if (ret != LTTCOMM_OK) {
- goto error;
- }
- }
-
- ret = LTTCOMM_OK;
-
-error:
- return ret;
-}
-
-/*
- * UST support.
- */
-
-/*
- * Add UST context to an event of a specific channel.
- */
-#ifdef DISABLE
-static int add_ustctx_to_event(struct ltt_ust_session *ustsession,
- struct lttng_ust_context *ustctx,
- struct ltt_ust_channel *ustchan, char *event_name)
-{
- int ret, found = 0;
- struct ltt_ust_event *ustevent;
- struct object_data *context_data; /* FIXME: currently a memleak */
-
- DBG("Add UST context to event %s", event_name);
-
- ustevent = trace_ust_find_event_by_name(ustchan->events, event_name);
- if (ustevent != NULL) {
- ret = ustctl_add_context(ustsession->sock, ustctx,
- ustevent->obj, &context_data);
- if (ret < 0) {
- goto error;
- }
- found = 1;
- }
-
- ret = found;
-
-error:
- return ret;
-}
-#endif
-
-/*
- * Add UST context to all channel.
- *
- * If event_name is specified, add context to event instead.
- */
-static int add_ustctx_all_channels(struct ltt_ust_session *ustsession,
- struct lttng_ust_context *ustctx, char *event_name,
- struct cds_lfht *channels)
-{
-#ifdef DISABLE
- int ret, no_event = 0, found = 0;
- struct ltt_ust_channel *ustchan;
- struct object_data *context_data; /* FIXME: currently a memleak */
-
- if (strlen(event_name) == 0) {
- no_event = 1;
- }
-
- DBG("Adding ust context to all channels (event: %s)", event_name);
-
- struct cds_lfht_node *node;
- struct cds_lfht_iter iter;
-
- rcu_read_lock();
- hashtable_get_first(channels, &iter);
- while ((node = hashtable_iter_get_node(&iter)) != NULL) {
- ustchan = caa_container_of(node, struct ltt_ust_channel, node);
- if (no_event) {
- //ret = ustctl_add_context(ustsession->sock,
- // ustctx, ustchan->obj, &context_data);
- if (ret < 0) {
- ret = LTTCOMM_UST_CONTEXT_FAIL;
- goto error;
- }
- } else {
- ret = add_ustctx_to_event(ustsession, ustctx, ustchan, event_name);
- if (ret < 0) {
- ret = LTTCOMM_UST_CONTEXT_FAIL;
- goto error;
- } else if (ret == 1) {
- /* Event found and context added */
- found = 1;
- break;
- }
- }
- hashtable_get_next(channels, &iter);
- }
- rcu_read_unlock();
-
- if (!found && !no_event) {
- ret = LTTCOMM_NO_EVENT;
- goto error;
- }
-
- ret = LTTCOMM_OK;
-
-error:
- return ret;
-#endif
- return 0;
-}
-
-/*
- * Add UST context to a specific channel.
- *
- * If event_name is specified, add context to that event.
- */
-static int add_ustctx_to_channel(struct ltt_ust_session *ustsession,
- struct lttng_ust_context *ustctx,
- struct ltt_ust_channel *ustchan, char *event_name)
-{
-#ifdef DISABLE
- int ret, no_event = 0, found = 0;
- struct object_data *context_data; /* FIXME: currently a memleak */
-
- if (strlen(event_name) == 0) {
- no_event = 1;
- }
-
- DBG("Add UST context to channel '%s', event '%s'",
- ustchan->name, event_name);
-
- if (no_event) {
- //ret = ustctl_add_context(ustsession->sock, ustctx,
- // ustchan->obj, &context_data);
- if (ret < 0) {
- ret = LTTCOMM_UST_CONTEXT_FAIL;
- goto error;
- }
- } else {
- ret = add_ustctx_to_event(ustsession, ustctx, ustchan, event_name);
- if (ret < 0) {
- ret = LTTCOMM_UST_CONTEXT_FAIL;
- goto error;
- } else if (ret == 1) {
- /* Event found and context added */
- found = 1;
- }
- }
-
- if (!found && !no_event) {
- ret = LTTCOMM_NO_EVENT;
- goto error;
- }
-
- ret = LTTCOMM_OK;
-
-error:
- return ret;
-#endif
- return 0;
-}
-
-/*
- * Add UST context to tracer.
- */
-int context_ust_add(struct ltt_ust_session *ustsession,
- struct lttng_event_context *ctx, char *event_name,
- char *channel_name, int domain)
-{
- int ret;
- struct cds_lfht *chan_ht = NULL;
- struct ltt_ust_channel *ustchan;
- struct lttng_ust_context ustctx;
-
- /* Setup UST context structure */
- ustctx.ctx = ctx->ctx;
-
- switch (domain) {
- case LTTNG_DOMAIN_UST:
- chan_ht = ustsession->domain_global.channels;
- break;
- }
-
- if (strlen(channel_name) == 0) {
- ret = add_ustctx_all_channels(ustsession, &ustctx, event_name, chan_ht);
- if (ret != LTTCOMM_OK) {
- goto error;
- }
- } else {
- /* Get UST channel */
- ustchan = trace_ust_find_channel_by_name(chan_ht, channel_name);
- if (ustchan == NULL) {
- ret = LTTCOMM_UST_CHAN_NOT_FOUND;
- goto error;
- }
-
- ret = add_ustctx_to_channel(ustsession, &ustctx, ustchan, event_name);
- if (ret != LTTCOMM_OK) {
- goto error;
- }
- }
-
- ret = LTTCOMM_OK;
-
-error:
- return ret;
-}
projects / lttng-tools.git / blobdiff