1 //===-- SBUnixSignals.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/Target/Platform.h"
10 #include "lldb/Target/Process.h"
11 #include "lldb/Target/UnixSignals.h"
12 #include "lldb/Utility/Instrumentation.h"
13 #include "lldb/lldb-defines.h"
14 
15 #include "lldb/API/SBUnixSignals.h"
16 
17 using namespace lldb;
18 using namespace lldb_private;
19 
20 SBUnixSignals::SBUnixSignals() { LLDB_INSTRUMENT_VA(this); }
21 
22 SBUnixSignals::SBUnixSignals(const SBUnixSignals &rhs)
23     : m_opaque_wp(rhs.m_opaque_wp) {
24   LLDB_INSTRUMENT_VA(this, rhs);
25 }
26 
27 SBUnixSignals::SBUnixSignals(ProcessSP &process_sp)
28     : m_opaque_wp(process_sp ? process_sp->GetUnixSignals() : nullptr) {}
29 
30 SBUnixSignals::SBUnixSignals(PlatformSP &platform_sp)
31     : m_opaque_wp(platform_sp ? platform_sp->GetUnixSignals() : nullptr) {}
32 
33 const SBUnixSignals &SBUnixSignals::operator=(const SBUnixSignals &rhs) {
34   LLDB_INSTRUMENT_VA(this, rhs);
35 
36   if (this != &rhs)
37     m_opaque_wp = rhs.m_opaque_wp;
38   return *this;
39 }
40 
41 SBUnixSignals::~SBUnixSignals() = default;
42 
43 UnixSignalsSP SBUnixSignals::GetSP() const { return m_opaque_wp.lock(); }
44 
45 void SBUnixSignals::SetSP(const UnixSignalsSP &signals_sp) {
46   m_opaque_wp = signals_sp;
47 }
48 
49 void SBUnixSignals::Clear() {
50   LLDB_INSTRUMENT_VA(this);
51 
52   m_opaque_wp.reset();
53 }
54 
55 bool SBUnixSignals::IsValid() const {
56   LLDB_INSTRUMENT_VA(this);
57   return this->operator bool();
58 }
59 SBUnixSignals::operator bool() const {
60   LLDB_INSTRUMENT_VA(this);
61 
62   return static_cast<bool>(GetSP());
63 }
64 
65 const char *SBUnixSignals::GetSignalAsCString(int32_t signo) const {
66   LLDB_INSTRUMENT_VA(this, signo);
67 
68   if (auto signals_sp = GetSP())
69     return signals_sp->GetSignalAsCString(signo);
70 
71   return nullptr;
72 }
73 
74 int32_t SBUnixSignals::GetSignalNumberFromName(const char *name) const {
75   LLDB_INSTRUMENT_VA(this, name);
76 
77   if (auto signals_sp = GetSP())
78     return signals_sp->GetSignalNumberFromName(name);
79 
80   return LLDB_INVALID_SIGNAL_NUMBER;
81 }
82 
83 bool SBUnixSignals::GetShouldSuppress(int32_t signo) const {
84   LLDB_INSTRUMENT_VA(this, signo);
85 
86   if (auto signals_sp = GetSP())
87     return signals_sp->GetShouldSuppress(signo);
88 
89   return false;
90 }
91 
92 bool SBUnixSignals::SetShouldSuppress(int32_t signo, bool value) {
93   LLDB_INSTRUMENT_VA(this, signo, value);
94 
95   auto signals_sp = GetSP();
96 
97   if (signals_sp)
98     return signals_sp->SetShouldSuppress(signo, value);
99 
100   return false;
101 }
102 
103 bool SBUnixSignals::GetShouldStop(int32_t signo) const {
104   LLDB_INSTRUMENT_VA(this, signo);
105 
106   if (auto signals_sp = GetSP())
107     return signals_sp->GetShouldStop(signo);
108 
109   return false;
110 }
111 
112 bool SBUnixSignals::SetShouldStop(int32_t signo, bool value) {
113   LLDB_INSTRUMENT_VA(this, signo, value);
114 
115   auto signals_sp = GetSP();
116 
117   if (signals_sp)
118     return signals_sp->SetShouldStop(signo, value);
119 
120   return false;
121 }
122 
123 bool SBUnixSignals::GetShouldNotify(int32_t signo) const {
124   LLDB_INSTRUMENT_VA(this, signo);
125 
126   if (auto signals_sp = GetSP())
127     return signals_sp->GetShouldNotify(signo);
128 
129   return false;
130 }
131 
132 bool SBUnixSignals::SetShouldNotify(int32_t signo, bool value) {
133   LLDB_INSTRUMENT_VA(this, signo, value);
134 
135   auto signals_sp = GetSP();
136 
137   if (signals_sp)
138     return signals_sp->SetShouldNotify(signo, value);
139 
140   return false;
141 }
142 
143 int32_t SBUnixSignals::GetNumSignals() const {
144   LLDB_INSTRUMENT_VA(this);
145 
146   if (auto signals_sp = GetSP())
147     return signals_sp->GetNumSignals();
148 
149   return -1;
150 }
151 
152 int32_t SBUnixSignals::GetSignalAtIndex(int32_t index) const {
153   LLDB_INSTRUMENT_VA(this, index);
154 
155   if (auto signals_sp = GetSP())
156     return signals_sp->GetSignalAtIndex(index);
157 
158   return LLDB_INVALID_SIGNAL_NUMBER;
159 }
160