cleanup: rename template headers
[lttng-ust.git] / liblttng-ust / lttng-context-vgid.c
index 7eb8c8076fbe104e85b1f7254088a9c2751bb609..78316139c7d2dc9c2c36eed0141ad9e755989caf 100644 (file)
@@ -1,34 +1,23 @@
 /*
- * lttng-context-vgid.c
- *
- * LTTng UST namespaced real group ID context.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
  * Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *               2019 Michael Jeanson <mjeanson@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.
+ * Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com>
  *
- * 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
+ * LTTng UST namespaced real group ID context.
  */
 
 #define _LGPL_SOURCE
+#include <limits.h>
 #include <stddef.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
 #include <lttng/ust-events.h>
 #include <lttng/ust-tracer.h>
-#include <lttng/ringbuffer-config.h>
+#include <lttng/ringbuffer-context.h>
+
+#include "context-internal.h"
 #include "creds.h"
 
 
@@ -73,56 +62,70 @@ void lttng_context_vgid_reset(void)
 }
 
 static
-size_t vgid_get_size(struct lttng_ctx_field *field, size_t offset)
+size_t vgid_get_size(struct lttng_ust_ctx_field *field, size_t offset)
 {
        size_t size = 0;
 
-       size += lib_ring_buffer_align(offset, lttng_alignof(gid_t));
+       size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(gid_t));
        size += sizeof(gid_t);
        return size;
 }
 
 static
-void vgid_record(struct lttng_ctx_field *field,
+void vgid_record(struct lttng_ust_ctx_field *field,
                 struct lttng_ust_lib_ring_buffer_ctx *ctx,
-                struct lttng_channel *chan)
+                struct lttng_ust_channel_buffer *chan)
 {
        gid_t vgid;
 
        vgid = get_vgid();
-       lib_ring_buffer_align_ctx(ctx, lttng_alignof(vgid));
-       chan->ops->event_write(ctx, &vgid, sizeof(vgid));
+       chan->ops->event_write(ctx, &vgid, sizeof(vgid), lttng_ust_rb_alignof(vgid));
 }
 
 static
-void vgid_get_value(struct lttng_ctx_field *field,
-               struct lttng_ctx_value *value)
+void vgid_get_value(struct lttng_ust_ctx_field *field,
+               struct lttng_ust_ctx_value *value)
 {
        value->u.s64 = get_vgid();
 }
 
-int lttng_add_vgid_to_ctx(struct lttng_ctx **ctx)
+int lttng_add_vgid_to_ctx(struct lttng_ust_ctx **ctx)
 {
-       struct lttng_ctx_field *field;
-
-       field = lttng_append_context(ctx);
-       if (!field)
+       struct lttng_ust_ctx_field *field;
+       struct lttng_ust_type_common *type;
+       int ret;
+
+       type = lttng_ust_create_type_integer(sizeof(gid_t) * CHAR_BIT,
+                       lttng_ust_rb_alignof(gid_t) * CHAR_BIT,
+                       lttng_ust_is_signed_type(gid_t),
+                       BYTE_ORDER, 10);
+       if (!type)
                return -ENOMEM;
+       field = lttng_append_context(ctx);
+       if (!field) {
+               ret = -ENOMEM;
+               goto error_context;
+       }
        if (lttng_find_context(*ctx, "vgid")) {
-               lttng_remove_context_field(ctx, field);
-               return -EEXIST;
+               ret = -EEXIST;
+               goto error_find_context;
+       }
+       field->event_field->name = strdup("vgid");
+       if (!field->event_field->name) {
+               ret = -ENOMEM;
+               goto error_name;
        }
-       field->event_field.name = "vgid";
-       field->event_field.type.atype = atype_integer;
-       field->event_field.type.u.integer.size = sizeof(gid_t) * CHAR_BIT;
-       field->event_field.type.u.integer.alignment = lttng_alignof(gid_t) * CHAR_BIT;
-       field->event_field.type.u.integer.signedness = lttng_is_signed_type(gid_t);
-       field->event_field.type.u.integer.reverse_byte_order = 0;
-       field->event_field.type.u.integer.base = 10;
-       field->event_field.type.u.integer.encoding = lttng_encode_none;
+       field->event_field->type = type;
        field->get_size = vgid_get_size;
        field->record = vgid_record;
        field->get_value = vgid_get_value;
        lttng_context_update(*ctx);
        return 0;
+
+error_name:
+error_find_context:
+       lttng_remove_context_field(ctx, field);
+error_context:
+       lttng_ust_destroy_type(type);
+       return ret;
 }
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