projects / babeltrace.git / blame
| Commit | Line | Data |
|---|---|---|
| 312c056a PP |
1 | /* |
| 2 | * Copyright 2018 Philippe Proulx <pproulx@efficios.com> | |
| 3 | * | |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| 5 | * of this software and associated documentation files (the "Software"), to deal | |
| 6 | * in the Software without restriction, including without limitation the rights | |
| 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 8 | * copies of the Software, and to permit persons to whom the Software is | |
| 9 | * furnished to do so, subject to the following conditions: | |
| 10 | * | |
| 11 | * The above copyright notice and this permission notice shall be included in | |
| 12 | * all copies or substantial portions of the Software. | |
| 13 | * | |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| 20 | * SOFTWARE. | |
| 21 | */ | |
| 22 | ||
| 23 | #define BT_LOG_TAG "EVENT-HEADER-FIELD" | |
| 24 | #include <babeltrace/lib-logging-internal.h> | |
| 25 | ||
| 26 | #include <babeltrace/assert-pre-internal.h> | |
| 27 | #include <babeltrace/ctf-ir/event-header-field.h> | |
| 44c440bc | 28 | #include <babeltrace/ctf-ir/stream-class-internal.h> |
| 312c056a PP |
29 | #include <babeltrace/ctf-ir/fields-internal.h> |
| 30 | #include <babeltrace/ctf-ir/field-wrapper-internal.h> | |
| 31 | #include <glib.h> | |
| 32 | ||
| 33 | struct bt_field *bt_event_header_field_borrow_field( | |
| 34 | struct bt_event_header_field *header_field) | |
| 35 | { | |
| 36 | struct bt_field_wrapper *field_wrapper = (void *) header_field; | |
| 37 | ||
| 38 | BT_ASSERT_PRE_NON_NULL(field_wrapper, "Event header field"); | |
| 312c056a PP |
39 | return (void *) field_wrapper->field; |
| 40 | } | |
| 41 | ||
| 42 | void bt_event_header_field_release(struct bt_event_header_field *header_field) | |
| 43 | { | |
| 44 | struct bt_field_wrapper *field_wrapper = (void *) header_field; | |
| 45 | ||
| 46 | BT_ASSERT_PRE_NON_NULL(field_wrapper, "Event header field"); | |
| 47 | ||
| 48 | /* | |
| 49 | * Do not recycle because the pool could be destroyed at this | |
| 50 | * point. This function is only called when there's an error | |
| 51 | * anyway because the goal of an event header field wrapper is | |
| 52 | * to eventually move it to an event with bt_event_move_header() | |
| 53 | * after creating it. | |
| 54 | */ | |
| 55 | bt_field_wrapper_destroy(field_wrapper); | |
| 56 | } | |
| 44c440bc PP |
57 | |
| 58 | struct bt_event_header_field *bt_event_header_field_create( | |
| 59 | struct bt_stream_class *stream_class) | |
| 60 | { | |
| 61 | struct bt_field_wrapper *field_wrapper; | |
| 62 | ||
| 63 | BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class"); | |
| 64 | BT_ASSERT_PRE(bt_stream_class_borrow_trace_inline(stream_class), | |
| 65 | "Stream class is not part of a trace: %!+S", stream_class); | |
| 66 | BT_ASSERT_PRE(stream_class->event_header_ft, | |
| 67 | "Stream class has no event header field type: %!+S", | |
| 68 | stream_class); | |
| 69 | field_wrapper = bt_field_wrapper_create( | |
| 70 | &stream_class->event_header_field_pool, | |
| 71 | (void *) stream_class->event_header_ft); | |
| 72 | if (!field_wrapper) { | |
| 73 | BT_LIB_LOGE("Cannot allocate one event header field from stream class: " | |
| 74 | "%![sc-]+S", stream_class); | |
| 75 | goto error; | |
| 76 | } | |
| 77 | ||
| 78 | BT_ASSERT(field_wrapper->field); | |
| 79 | bt_stream_class_freeze(stream_class); | |
| 80 | goto end; | |
| 81 | ||
| 82 | error: | |
| 83 | if (field_wrapper) { | |
| 84 | bt_field_wrapper_destroy(field_wrapper); | |
| 85 | field_wrapper = NULL; | |
| 86 | } | |
| 87 | ||
| 88 | end: | |
| 89 | return (void *) field_wrapper; | |
| 90 | } |