1/*
2 * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25#ifndef SHARE_JFR_WRITERS_JFREVENTWRITERHOST_INLINE_HPP
26#define SHARE_JFR_WRITERS_JFREVENTWRITERHOST_INLINE_HPP
27
28#include "jfr/writers/jfrEventWriterHost.hpp"
29
30template <typename BE, typename IE, typename WriterPolicyImpl>
31template <typename StorageType>
32inline EventWriterHost<BE, IE, WriterPolicyImpl>::
33EventWriterHost(StorageType* storage, Thread* thread) : WriterHost<BE, IE, WriterPolicyImpl>(storage, thread) {}
34
35template <typename BE, typename IE, typename WriterPolicyImpl>
36inline EventWriterHost<BE, IE, WriterPolicyImpl>::EventWriterHost(Thread* thread) : WriterHost<BE, IE, WriterPolicyImpl>(thread) {
37}
38
39template <typename BE, typename IE, typename WriterPolicyImpl>
40inline void EventWriterHost<BE, IE, WriterPolicyImpl>::begin_write() {
41 assert(this->is_valid(), "invariant");
42 assert(!this->is_acquired(), "calling begin with writer already in acquired state!");
43 this->acquire();
44 assert(this->used_offset() == 0, "invariant");
45 assert(this->is_acquired(), "invariant");
46}
47
48template <typename BE, typename IE, typename WriterPolicyImpl>
49inline intptr_t EventWriterHost<BE, IE, WriterPolicyImpl>::end_write(void) {
50 assert(this->is_acquired(),
51 "state corruption, calling end with writer with non-acquired state!");
52 return this->is_valid() ? (intptr_t)this->used_offset() : 0;
53}
54
55template <typename BE, typename IE, typename WriterPolicyImpl>
56inline void EventWriterHost<BE, IE, WriterPolicyImpl>::begin_event_write() {
57 assert(this->is_valid(), "invariant");
58 assert(!this->is_acquired(), "calling begin with writer already in acquired state!");
59 this->begin_write();
60 this->reserve(sizeof(u4)); // reserve the event size slot
61}
62
63template <typename BE, typename IE, typename WriterPolicyImpl>
64inline intptr_t EventWriterHost<BE, IE, WriterPolicyImpl>::end_event_write() {
65 assert(this->is_acquired(), "invariant");
66 if (!this->is_valid()) {
67 this->release();
68 return 0;
69 }
70 const u4 written = (u4)end_write();
71 if (written > sizeof(u4)) { // larger than header reserve
72 this->write_padded_at_offset(written, 0);
73 this->commit();
74 }
75 this->release();
76 assert(!this->is_acquired(), "invariant");
77 return written;
78}
79
80template <typename BE, typename IE, typename WriterPolicyImpl>
81template <typename StorageType>
82inline StackEventWriterHost<BE, IE, WriterPolicyImpl>::
83StackEventWriterHost(StorageType* storage, Thread* thread) : EventWriterHost<BE, IE, WriterPolicyImpl>(storage, thread) {
84 this->begin_event_write();
85}
86
87template <typename BE, typename IE, typename WriterPolicyImpl>
88inline StackEventWriterHost<BE, IE, WriterPolicyImpl>::StackEventWriterHost(Thread* thread) : EventWriterHost<BE, IE, WriterPolicyImpl>(thread) {
89 this->begin_event_write();
90}
91
92template <typename BE, typename IE, typename WriterPolicyImpl>
93inline StackEventWriterHost<BE, IE, WriterPolicyImpl>::~StackEventWriterHost() {
94 this->end_event_write();
95}
96
97#endif // SHARE_JFR_WRITERS_JFREVENTWRITERHOST_INLINE_HPP
98