1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
// Copyright 2014 Citra Emulator Project / PPSSPP Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <cstddef>
#include <string>
#include <utility>
#include <boost/smart_ptr/intrusive_ptr.hpp>
#include "common/assert.h"
#include "common/common_types.h"
namespace Kernel {
using Handle = u32;
enum class HandleType : u32 {
Unknown,
Event,
Mutex,
SharedMemory,
Thread,
Process,
AddressArbiter,
ConditionVariable,
Timer,
ResourceLimit,
CodeSet,
ClientPort,
ServerPort,
ClientSession,
ServerSession,
Domain,
};
enum {
DEFAULT_STACK_SIZE = 0x4000,
};
enum class ResetType {
OneShot,
Sticky,
Pulse,
};
class Object : NonCopyable {
public:
virtual ~Object() {}
/// Returns a unique identifier for the object. For debugging purposes only.
unsigned int GetObjectId() const {
return object_id;
}
virtual std::string GetTypeName() const {
return "[BAD KERNEL OBJECT TYPE]";
}
virtual std::string GetName() const {
return "[UNKNOWN KERNEL OBJECT]";
}
virtual Kernel::HandleType GetHandleType() const = 0;
/**
* Check if a thread can wait on the object
* @return True if a thread can wait on the object, otherwise false
*/
bool IsWaitable() const {
switch (GetHandleType()) {
case HandleType::Event:
case HandleType::Mutex:
case HandleType::Thread:
case HandleType::ConditionVariable:
case HandleType::Timer:
case HandleType::ServerPort:
case HandleType::ServerSession:
return true;
case HandleType::Unknown:
case HandleType::SharedMemory:
case HandleType::Process:
case HandleType::AddressArbiter:
case HandleType::ResourceLimit:
case HandleType::CodeSet:
case HandleType::ClientPort:
case HandleType::ClientSession:
case HandleType::Domain:
return false;
}
UNREACHABLE();
}
/**
* Check if svcSendSyncRequest can be called on the object
* @return True svcSendSyncRequest can be called on the object, otherwise false
*/
bool IsSyncable() const {
switch (GetHandleType()) {
case HandleType::ClientSession:
case HandleType::Domain:
return true;
}
UNREACHABLE();
}
public:
static unsigned int next_object_id;
private:
friend void intrusive_ptr_add_ref(Object*);
friend void intrusive_ptr_release(Object*);
unsigned int ref_count = 0;
unsigned int object_id = next_object_id++;
};
// Special functions used by boost::instrusive_ptr to do automatic ref-counting
inline void intrusive_ptr_add_ref(Object* object) {
++object->ref_count;
}
inline void intrusive_ptr_release(Object* object) {
if (--object->ref_count == 0) {
delete object;
}
}
template <typename T>
using SharedPtr = boost::intrusive_ptr<T>;
/**
* Attempts to downcast the given Object pointer to a pointer to T.
* @return Derived pointer to the object, or `nullptr` if `object` isn't of type T.
*/
template <typename T>
inline SharedPtr<T> DynamicObjectCast(SharedPtr<Object> object) {
if (object != nullptr && object->GetHandleType() == T::HANDLE_TYPE) {
return boost::static_pointer_cast<T>(std::move(object));
}
return nullptr;
}
/// Initialize the kernel with the specified system mode.
void Init(u32 system_mode);
/// Shutdown the kernel
void Shutdown();
} // namespace Kernel
|
