/*
- * (C) Copyright 2009-2011 -
- * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * lttng-context-vpid.c
*
* LTTng UST vpid context.
*
- * Dual LGPL v2.1/GPL v2 license.
+ * Copyright (C) 2009-2012 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 <sys/types.h>
#endif
static
-size_t vpid_get_size(size_t offset)
+size_t vpid_get_size(struct lttng_ctx_field *field, size_t offset)
{
size_t size = 0;
static
void vpid_record(struct lttng_ctx_field *field,
struct lttng_ust_lib_ring_buffer_ctx *ctx,
- struct ltt_channel *chan)
+ struct lttng_channel *chan)
{
pid_t pid;
chan->ops->event_write(ctx, &pid, sizeof(pid));
}
+static
+void vpid_get_value(struct lttng_ctx_field *field,
+ struct lttng_ctx_value *value)
+{
+ pid_t pid;
+
+ pid = wrapper_getpid();
+ value->u.s64 = pid;
+}
+
int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx)
{
struct lttng_ctx_field *field;
field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
field->get_size = vpid_get_size;
field->record = vpid_record;
+ field->get_value = vpid_get_value;
+ lttng_context_update(*ctx);
return 0;
}