8c99c56efa5d9d122c8fb6571e887cf3c74469cd
2 * Copyright (C) 2020 Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 * SPDX-License-Identifier: LGPL-2.1-only
8 #include <common/dynamic-array.h>
9 #include <common/buffer-view.h>
10 #include "payload-view.h"
15 struct lttng_payload_view
lttng_payload_view_from_payload(
16 const struct lttng_payload
*payload
, size_t offset
,
19 return (struct lttng_payload_view
) {
20 .buffer
= lttng_buffer_view_from_dynamic_buffer(
21 &payload
->buffer
, offset
, len
),
22 ._fds
= payload
->_fds
,
27 struct lttng_payload_view
lttng_payload_view_from_view(
28 struct lttng_payload_view
*view
, size_t offset
,
31 return (struct lttng_payload_view
) {
32 .buffer
= lttng_buffer_view_from_view(
33 &view
->buffer
, offset
, len
),
35 ._iterator
.p_fds_position
= view
->_iterator
.p_fds_position
?:
36 &view
->_iterator
.fds_position
,
41 struct lttng_payload_view
lttng_payload_view_from_dynamic_buffer(
42 const struct lttng_dynamic_buffer
*buffer
, size_t offset
,
45 return (struct lttng_payload_view
) {
46 .buffer
= lttng_buffer_view_from_dynamic_buffer(
52 struct lttng_payload_view
lttng_payload_view_from_buffer_view(
53 const struct lttng_buffer_view
*view
, size_t offset
,
56 return (struct lttng_payload_view
) {
57 .buffer
= lttng_buffer_view_from_view(
63 struct lttng_payload_view
lttng_payload_view_init_from_buffer(
64 const char *src
, size_t offset
, ptrdiff_t len
)
66 return (struct lttng_payload_view
) {
67 .buffer
= lttng_buffer_view_init(
73 int lttng_payload_view_get_fd_count(struct lttng_payload_view
*payload_view
)
83 ret
= lttng_dynamic_array_get_count(&payload_view
->_fds
);
88 position
= payload_view
->_iterator
.p_fds_position
?
89 *payload_view
->_iterator
.p_fds_position
:
90 payload_view
->_iterator
.fds_position
;
91 ret
= ret
- (int) position
;
97 int lttng_payload_view_pop_fd(struct lttng_payload_view
*view
)
108 fd_count
= lttng_dynamic_array_get_count(&view
->_fds
);
109 pos
= view
->_iterator
.p_fds_position
? view
->_iterator
.p_fds_position
:
110 &view
->_iterator
.fds_position
;
112 if (*pos
>= fd_count
) {
117 ret
= *((int *) lttng_dynamic_array_get_element(
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