+++ /dev/null
-/*
- * lttng-context-pthread-id.c
- *
- * LTTng UST pthread_id context.
- *
- * Copyright (C) 2009-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * 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; only
- * version 2.1 of the License.
- *
- * 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
- */
-
-#include <pthread.h>
-#include <lttng/ust-events.h>
-#include <lttng/ust-tracer.h>
-#include <lttng/ringbuffer-config.h>
-
-static
-size_t pthread_id_get_size(struct lttng_ctx_field *field, size_t offset)
-{
- size_t size = 0;
-
- size += lib_ring_buffer_align(offset, lttng_alignof(unsigned long));
- size += sizeof(unsigned long);
- return size;
-}
-
-static
-void pthread_id_record(struct lttng_ctx_field *field,
- struct lttng_ust_lib_ring_buffer_ctx *ctx,
- struct lttng_channel *chan)
-{
- unsigned long pthread_id;
-
- pthread_id = (unsigned long) pthread_self();
- lib_ring_buffer_align_ctx(ctx, lttng_alignof(pthread_id));
- chan->ops->event_write(ctx, &pthread_id, sizeof(pthread_id));
-}
-
-static
-void pthread_id_get_value(struct lttng_ctx_field *field,
- struct lttng_ctx_value *value)
-{
- unsigned long pthread_id;
-
- pthread_id = (unsigned long) pthread_self();
- value->u.s64 = pthread_id;
-}
-
-int lttng_add_pthread_id_to_ctx(struct lttng_ctx **ctx)
-{
- struct lttng_ctx_field *field;
-
- field = lttng_append_context(ctx);
- if (!field)
- return -ENOMEM;
- if (lttng_find_context(*ctx, "pthread_id")) {
- lttng_remove_context_field(ctx, field);
- return -EEXIST;
- }
- field->event_field.name = "pthread_id";
- field->event_field.type.atype = atype_integer;
- field->event_field.type.u.basic.integer.size = sizeof(unsigned long) * CHAR_BIT;
- field->event_field.type.u.basic.integer.alignment = lttng_alignof(unsigned long) * CHAR_BIT;
- field->event_field.type.u.basic.integer.signedness = lttng_is_signed_type(unsigned long);
- field->event_field.type.u.basic.integer.reverse_byte_order = 0;
- field->event_field.type.u.basic.integer.base = 10;
- field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
- field->get_size = pthread_id_get_size;
- field->record = pthread_id_record;
- field->get_value = pthread_id_get_value;
- lttng_context_update(*ctx);
- return 0;
-}