Rename C++ header files to .hpp
[lttng-tools.git] / src / common / payload.cpp
... / ...
CommitLineData
1/*
2 * Copyright (C) 2020 Jérémie Galarneau <jeremie.galarneau@efficios.com>
3 *
4 * SPDX-License-Identifier: LGPL-2.1-only
5 *
6 */
7
8#include "payload.hpp"
9#include <common/dynamic-array.hpp>
10#include <common/dynamic-buffer.hpp>
11#include <common/error.hpp>
12
13static
14void release_fd_handle_ref(void *ptr)
15{
16 struct fd_handle *fd_handle = (struct fd_handle *) ptr;
17
18 fd_handle_put(fd_handle);
19}
20
21void lttng_payload_init(struct lttng_payload *payload)
22{
23 LTTNG_ASSERT(payload);
24 lttng_dynamic_buffer_init(&payload->buffer);
25 lttng_dynamic_pointer_array_init(&payload->_fd_handles,
26 release_fd_handle_ref);
27}
28
29int lttng_payload_copy(const struct lttng_payload *src_payload,
30 struct lttng_payload *dst_payload)
31{
32 int ret;
33 size_t i;
34
35 ret = lttng_dynamic_buffer_append_buffer(
36 &dst_payload->buffer, &src_payload->buffer);
37 if (ret) {
38 goto end;
39 }
40
41 for (i = 0; i < lttng_dynamic_pointer_array_get_count(
42 &src_payload->_fd_handles);
43 i++) {
44 struct fd_handle *new_fd_handle;
45 const struct fd_handle *src_fd_handle =
46 (fd_handle *) lttng_dynamic_pointer_array_get_pointer(
47 &src_payload->_fd_handles, i);
48
49 new_fd_handle = fd_handle_copy(src_fd_handle);
50 if (!new_fd_handle) {
51 PERROR("Failed to copy fd_handle while copying a payload");
52 ret = -1;
53 goto end;
54 }
55
56 ret = lttng_payload_push_fd_handle(dst_payload, new_fd_handle);
57 fd_handle_put(new_fd_handle);
58 if (ret) {
59 goto end;
60 }
61 }
62
63end:
64 return ret;
65}
66
67void lttng_payload_reset(struct lttng_payload *payload)
68{
69 if (!payload) {
70 return;
71 }
72
73 lttng_dynamic_buffer_reset(&payload->buffer);
74 lttng_dynamic_pointer_array_reset(&payload->_fd_handles);
75}
76
77void lttng_payload_clear(struct lttng_payload *payload)
78{
79 (void) lttng_dynamic_buffer_set_size(&payload->buffer, 0);
80 lttng_dynamic_pointer_array_clear(&payload->_fd_handles);
81}
82
83int lttng_payload_push_fd_handle(struct lttng_payload *payload,
84 struct fd_handle *fd_handle)
85{
86 int ret;
87
88 if (!payload) {
89 ret = -1;
90 goto end;
91 }
92
93 ret = lttng_dynamic_pointer_array_add_pointer(
94 &payload->_fd_handles, fd_handle);
95 if (ret) {
96 goto end;
97 }
98
99 fd_handle_get(fd_handle);
100end:
101 return ret;
102}
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