1 //===-- SBBroadcaster.cpp -------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "lldb/Utility/Broadcaster.h"
10 #include "lldb/Utility/Instrumentation.h"
11 
12 #include "lldb/API/SBBroadcaster.h"
13 #include "lldb/API/SBEvent.h"
14 #include "lldb/API/SBListener.h"
15 
16 using namespace lldb;
17 using namespace lldb_private;
18 
19 SBBroadcaster::SBBroadcaster() { LLDB_INSTRUMENT_VA(this); }
20 
21 SBBroadcaster::SBBroadcaster(const char *name)
22     : m_opaque_sp(new Broadcaster(nullptr, name)) {
23   LLDB_INSTRUMENT_VA(this, name);
24 
25   m_opaque_ptr = m_opaque_sp.get();
26 }
27 
28 SBBroadcaster::SBBroadcaster(lldb_private::Broadcaster *broadcaster, bool owns)
29     : m_opaque_sp(owns ? broadcaster : nullptr), m_opaque_ptr(broadcaster) {}
30 
31 SBBroadcaster::SBBroadcaster(const SBBroadcaster &rhs)
32     : m_opaque_sp(rhs.m_opaque_sp), m_opaque_ptr(rhs.m_opaque_ptr) {
33   LLDB_INSTRUMENT_VA(this, rhs);
34 }
35 
36 const SBBroadcaster &SBBroadcaster::operator=(const SBBroadcaster &rhs) {
37   LLDB_INSTRUMENT_VA(this, rhs);
38 
39   if (this != &rhs) {
40     m_opaque_sp = rhs.m_opaque_sp;
41     m_opaque_ptr = rhs.m_opaque_ptr;
42   }
43   return *this;
44 }
45 
46 SBBroadcaster::~SBBroadcaster() { reset(nullptr, false); }
47 
48 void SBBroadcaster::BroadcastEventByType(uint32_t event_type, bool unique) {
49   LLDB_INSTRUMENT_VA(this, event_type, unique);
50 
51   if (m_opaque_ptr == nullptr)
52     return;
53 
54   if (unique)
55     m_opaque_ptr->BroadcastEventIfUnique(event_type);
56   else
57     m_opaque_ptr->BroadcastEvent(event_type);
58 }
59 
60 void SBBroadcaster::BroadcastEvent(const SBEvent &event, bool unique) {
61   LLDB_INSTRUMENT_VA(this, event, unique);
62 
63   if (m_opaque_ptr == nullptr)
64     return;
65 
66   EventSP event_sp = event.GetSP();
67   if (unique)
68     m_opaque_ptr->BroadcastEventIfUnique(event_sp);
69   else
70     m_opaque_ptr->BroadcastEvent(event_sp);
71 }
72 
73 void SBBroadcaster::AddInitialEventsToListener(const SBListener &listener,
74                                                uint32_t requested_events) {
75   LLDB_INSTRUMENT_VA(this, listener, requested_events);
76 
77   if (m_opaque_ptr)
78     m_opaque_ptr->AddInitialEventsToListener(listener.m_opaque_sp,
79                                              requested_events);
80 }
81 
82 uint32_t SBBroadcaster::AddListener(const SBListener &listener,
83                                     uint32_t event_mask) {
84   LLDB_INSTRUMENT_VA(this, listener, event_mask);
85 
86   if (m_opaque_ptr)
87     return m_opaque_ptr->AddListener(listener.m_opaque_sp, event_mask);
88   return 0;
89 }
90 
91 const char *SBBroadcaster::GetName() const {
92   LLDB_INSTRUMENT_VA(this);
93 
94   if (m_opaque_ptr)
95     return m_opaque_ptr->GetBroadcasterName().GetCString();
96   return nullptr;
97 }
98 
99 bool SBBroadcaster::EventTypeHasListeners(uint32_t event_type) {
100   LLDB_INSTRUMENT_VA(this, event_type);
101 
102   if (m_opaque_ptr)
103     return m_opaque_ptr->EventTypeHasListeners(event_type);
104   return false;
105 }
106 
107 bool SBBroadcaster::RemoveListener(const SBListener &listener,
108                                    uint32_t event_mask) {
109   LLDB_INSTRUMENT_VA(this, listener, event_mask);
110 
111   if (m_opaque_ptr)
112     return m_opaque_ptr->RemoveListener(listener.m_opaque_sp, event_mask);
113   return false;
114 }
115 
116 Broadcaster *SBBroadcaster::get() const { return m_opaque_ptr; }
117 
118 void SBBroadcaster::reset(Broadcaster *broadcaster, bool owns) {
119   if (owns)
120     m_opaque_sp.reset(broadcaster);
121   else
122     m_opaque_sp.reset();
123   m_opaque_ptr = broadcaster;
124 }
125 
126 bool SBBroadcaster::IsValid() const {
127   LLDB_INSTRUMENT_VA(this);
128   return this->operator bool();
129 }
130 SBBroadcaster::operator bool() const {
131   LLDB_INSTRUMENT_VA(this);
132 
133   return m_opaque_ptr != nullptr;
134 }
135 
136 void SBBroadcaster::Clear() {
137   LLDB_INSTRUMENT_VA(this);
138 
139   m_opaque_sp.reset();
140   m_opaque_ptr = nullptr;
141 }
142 
143 bool SBBroadcaster::operator==(const SBBroadcaster &rhs) const {
144   LLDB_INSTRUMENT_VA(this, rhs);
145 
146   return m_opaque_ptr == rhs.m_opaque_ptr;
147 }
148 
149 bool SBBroadcaster::operator!=(const SBBroadcaster &rhs) const {
150   LLDB_INSTRUMENT_VA(this, rhs);
151 
152   return m_opaque_ptr != rhs.m_opaque_ptr;
153 }
154 
155 bool SBBroadcaster::operator<(const SBBroadcaster &rhs) const {
156   LLDB_INSTRUMENT_VA(this, rhs);
157 
158   return m_opaque_ptr < rhs.m_opaque_ptr;
159 }
160