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
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/***************************************************************************************************
Zyan Core Library (Zycore-C)
Original Author : Florian Bernd
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
***************************************************************************************************/
#include <Zycore/API/Thread.h>
/* ============================================================================================== */
/* Internal functions */
/* ============================================================================================== */
/* ---------------------------------------------------------------------------------------------- */
/* */
/* ---------------------------------------------------------------------------------------------- */
/* ---------------------------------------------------------------------------------------------- */
/* ============================================================================================== */
/* Exported functions */
/* ============================================================================================== */
#if defined(ZYAN_POSIX)
#include <errno.h>
/* ---------------------------------------------------------------------------------------------- */
/* General */
/* ---------------------------------------------------------------------------------------------- */
ZyanStatus ZyanThreadGetCurrentThread(ZyanThread* thread)
{
*thread = pthread_self();
return ZYAN_STATUS_SUCCESS;
}
ZYAN_STATIC_ASSERT(sizeof(ZyanThreadId) <= sizeof(ZyanU64));
ZyanStatus ZyanThreadGetCurrentThreadId(ZyanThreadId* thread_id)
{
// TODO: Use `pthread_getthreadid_np` on platforms where it is available
pthread_t ptid = pthread_self();
*thread_id = *(ZyanThreadId*)ptid;
return ZYAN_STATUS_SUCCESS;
}
/* ---------------------------------------------------------------------------------------------- */
/* Thread Local Storage */
/* ---------------------------------------------------------------------------------------------- */
ZyanStatus ZyanThreadTlsAlloc(ZyanThreadTlsIndex* index, ZyanThreadTlsCallback destructor)
{
ZyanThreadTlsIndex value;
const int error = pthread_key_create(&value, destructor);
if (error != 0)
{
if (error == EAGAIN)
{
return ZYAN_STATUS_OUT_OF_RESOURCES;
}
if (error == ENOMEM)
{
return ZYAN_STATUS_NOT_ENOUGH_MEMORY;
}
return ZYAN_STATUS_BAD_SYSTEMCALL;
}
*index = value;
return ZYAN_STATUS_SUCCESS;
}
ZyanStatus ZyanThreadTlsFree(ZyanThreadTlsIndex index)
{
return !pthread_key_delete(index) ? ZYAN_STATUS_SUCCESS : ZYAN_STATUS_BAD_SYSTEMCALL;
}
ZyanStatus ZyanThreadTlsGetValue(ZyanThreadTlsIndex index, void** data)
{
*data = pthread_getspecific(index);
return ZYAN_STATUS_SUCCESS;
}
ZyanStatus ZyanThreadTlsSetValue(ZyanThreadTlsIndex index, void* data)
{
const int error = pthread_setspecific(index, data);
if (error != 0)
{
if (error == EINVAL)
{
return ZYAN_STATUS_INVALID_ARGUMENT;
}
return ZYAN_STATUS_BAD_SYSTEMCALL;
}
return ZYAN_STATUS_SUCCESS;
}
/* ---------------------------------------------------------------------------------------------- */
#elif defined(ZYAN_WINDOWS)
/* ---------------------------------------------------------------------------------------------- */
/* General */
/* ---------------------------------------------------------------------------------------------- */
ZyanStatus ZyanThreadGetCurrentThread(ZyanThread* thread)
{
*thread = GetCurrentThread();
return ZYAN_STATUS_SUCCESS;
}
ZyanStatus ZyanThreadGetCurrentThreadId(ZyanThreadId* thread_id)
{
*thread_id = GetCurrentThreadId();
return ZYAN_STATUS_SUCCESS;
}
/* ---------------------------------------------------------------------------------------------- */
/* Thread Local Storage (TLS) */
/* ---------------------------------------------------------------------------------------------- */
ZyanStatus ZyanThreadTlsAlloc(ZyanThreadTlsIndex* index, ZyanThreadTlsCallback destructor)
{
const ZyanThreadTlsIndex value = FlsAlloc(destructor);
if (value == FLS_OUT_OF_INDEXES)
{
return ZYAN_STATUS_OUT_OF_RESOURCES;
}
*index = value;
return ZYAN_STATUS_SUCCESS;
}
ZyanStatus ZyanThreadTlsFree(ZyanThreadTlsIndex index)
{
return FlsFree(index) ? ZYAN_STATUS_SUCCESS : ZYAN_STATUS_BAD_SYSTEMCALL;
}
ZyanStatus ZyanThreadTlsGetValue(ZyanThreadTlsIndex index, void** data)
{
*data = FlsGetValue(index);
return ZYAN_STATUS_SUCCESS;
}
ZyanStatus ZyanThreadTlsSetValue(ZyanThreadTlsIndex index, void* data)
{
if (!FlsSetValue(index, data))
{
const DWORD error = GetLastError();
if (error == ERROR_INVALID_PARAMETER)
{
return ZYAN_STATUS_INVALID_ARGUMENT;
}
return ZYAN_STATUS_BAD_SYSTEMCALL;
}
return ZYAN_STATUS_SUCCESS;
}
/* ---------------------------------------------------------------------------------------------- */
#else
# error "Unsupported platform detected"
#endif
/* ============================================================================================== */
|
