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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
|
#include <winpr/crt.h>
#include <winpr/synch.h>
#include <winpr/thread.h>
#include <winpr/interlocked.h>
#include <winpr/sysinfo.h>
#include "../synch.h"
static SYNCHRONIZATION_BARRIER gBarrier;
static HANDLE gStartEvent = NULL;
static LONG gErrorCount = 0;
#define MAX_SLEEP_MS 22
struct test_params
{
LONG threadCount;
LONG trueCount;
LONG falseCount;
DWORD loops;
DWORD flags;
};
static DWORD WINAPI test_synch_barrier_thread(LPVOID lpParam)
{
BOOL status = FALSE;
struct test_params* p = (struct test_params*)lpParam;
InterlockedIncrement(&p->threadCount);
// printf("Thread #%03u entered.\n", tnum);
/* wait for start event from main */
if (WaitForSingleObject(gStartEvent, INFINITE) != WAIT_OBJECT_0)
{
InterlockedIncrement(&gErrorCount);
goto out;
}
// printf("Thread #%03u unblocked.\n", tnum);
for (DWORD i = 0; i < p->loops && gErrorCount == 0; i++)
{
/* simulate different execution times before the barrier */
Sleep(1 + abs((rand() % MAX_SLEEP_MS)));
status = EnterSynchronizationBarrier(&gBarrier, p->flags);
// printf("Thread #%03u status: %s\n", tnum, status ? "TRUE" : "FALSE");
if (status)
InterlockedIncrement(&p->trueCount);
else
InterlockedIncrement(&p->falseCount);
}
out:
// printf("Thread #%03u leaving.\n", tnum);
return 0;
}
static BOOL TestSynchBarrierWithFlags(DWORD dwFlags, DWORD dwThreads, DWORD dwLoops)
{
HANDLE* threads = NULL;
struct test_params p;
DWORD dwStatus = 0;
DWORD expectedTrueCount = 0;
DWORD expectedFalseCount = 0;
p.threadCount = 0;
p.trueCount = 0;
p.falseCount = 0;
p.loops = dwLoops;
p.flags = dwFlags;
expectedTrueCount = dwLoops;
expectedFalseCount = dwLoops * (dwThreads - 1);
printf("%s: >> Testing with flags 0x%08" PRIx32 ". Using %" PRIu32
" threads performing %" PRIu32 " loops\n",
__func__, dwFlags, dwThreads, dwLoops);
if (!(threads = calloc(dwThreads, sizeof(HANDLE))))
{
printf("%s: error allocatin thread array memory\n", __func__);
return FALSE;
}
if (!InitializeSynchronizationBarrier(&gBarrier, dwThreads, -1))
{
printf("%s: InitializeSynchronizationBarrier failed. GetLastError() = 0x%08x", __func__,
GetLastError());
free(threads);
DeleteSynchronizationBarrier(&gBarrier);
return FALSE;
}
if (!(gStartEvent = CreateEvent(NULL, TRUE, FALSE, NULL)))
{
printf("%s: CreateEvent failed with error 0x%08x", __func__, GetLastError());
free(threads);
DeleteSynchronizationBarrier(&gBarrier);
return FALSE;
}
DWORD i = 0;
for (; i < dwThreads; i++)
{
if (!(threads[i] = CreateThread(NULL, 0, test_synch_barrier_thread, &p, 0, NULL)))
{
printf("%s: CreateThread failed for thread #%" PRIu32 " with error 0x%08x\n", __func__,
i, GetLastError());
InterlockedIncrement(&gErrorCount);
break;
}
}
if (i > 0)
{
if (!SetEvent(gStartEvent))
{
printf("%s: SetEvent(gStartEvent) failed with error = 0x%08x)\n", __func__,
GetLastError());
InterlockedIncrement(&gErrorCount);
}
while (i--)
{
if (WAIT_OBJECT_0 != (dwStatus = WaitForSingleObject(threads[i], INFINITE)))
{
printf("%s: WaitForSingleObject(thread[%" PRIu32 "] unexpectedly returned %" PRIu32
" (error = 0x%08x)\n",
__func__, i, dwStatus, GetLastError());
InterlockedIncrement(&gErrorCount);
}
if (!CloseHandle(threads[i]))
{
printf("%s: CloseHandle(thread[%" PRIu32 "]) failed with error = 0x%08x)\n",
__func__, i, GetLastError());
InterlockedIncrement(&gErrorCount);
}
}
}
free(threads);
if (!CloseHandle(gStartEvent))
{
printf("%s: CloseHandle(gStartEvent) failed with error = 0x%08x)\n", __func__,
GetLastError());
InterlockedIncrement(&gErrorCount);
}
DeleteSynchronizationBarrier(&gBarrier);
if (p.threadCount != (INT64)dwThreads)
InterlockedIncrement(&gErrorCount);
if (p.trueCount != (INT64)expectedTrueCount)
InterlockedIncrement(&gErrorCount);
if (p.falseCount != (INT64)expectedFalseCount)
InterlockedIncrement(&gErrorCount);
printf("%s: error count: %" PRId32 "\n", __func__, gErrorCount);
printf("%s: thread count: %" PRId32 " (expected %" PRIu32 ")\n", __func__, p.threadCount,
dwThreads);
printf("%s: true count: %" PRId32 " (expected %" PRIu32 ")\n", __func__, p.trueCount,
expectedTrueCount);
printf("%s: false count: %" PRId32 " (expected %" PRIu32 ")\n", __func__, p.falseCount,
expectedFalseCount);
if (gErrorCount > 0)
{
printf("%s: Error test failed with %" PRId32 " reported errors\n", __func__, gErrorCount);
return FALSE;
}
return TRUE;
}
int TestSynchBarrier(int argc, char* argv[])
{
SYSTEM_INFO sysinfo;
DWORD dwMaxThreads = 0;
DWORD dwMinThreads = 0;
DWORD dwNumLoops = 10;
WINPR_UNUSED(argc);
WINPR_UNUSED(argv);
GetNativeSystemInfo(&sysinfo);
printf("%s: Number of processors: %" PRIu32 "\n", __func__, sysinfo.dwNumberOfProcessors);
dwMinThreads = sysinfo.dwNumberOfProcessors;
dwMaxThreads = sysinfo.dwNumberOfProcessors * 4;
if (dwMaxThreads > 32)
dwMaxThreads = 32;
/* Test invalid parameters */
if (InitializeSynchronizationBarrier(&gBarrier, 0, -1))
{
fprintf(
stderr,
"%s: InitializeSynchronizationBarrier unecpectedly succeeded with lTotalThreads = 0\n",
__func__);
return -1;
}
if (InitializeSynchronizationBarrier(&gBarrier, -1, -1))
{
fprintf(
stderr,
"%s: InitializeSynchronizationBarrier unecpectedly succeeded with lTotalThreads = -1\n",
__func__);
return -1;
}
if (InitializeSynchronizationBarrier(&gBarrier, 1, -2))
{
fprintf(
stderr,
"%s: InitializeSynchronizationBarrier unecpectedly succeeded with lSpinCount = -2\n",
__func__);
return -1;
}
/* Functional tests */
if (!TestSynchBarrierWithFlags(0, dwMaxThreads, dwNumLoops))
{
fprintf(stderr,
"%s: TestSynchBarrierWithFlags(0) unecpectedly succeeded with lTotalThreads = -1\n",
__func__);
return -1;
}
if (!TestSynchBarrierWithFlags(SYNCHRONIZATION_BARRIER_FLAGS_SPIN_ONLY, dwMinThreads,
dwNumLoops))
{
fprintf(stderr,
"%s: TestSynchBarrierWithFlags(SYNCHRONIZATION_BARRIER_FLAGS_SPIN_ONLY) "
"unecpectedly succeeded with lTotalThreads = -1\n",
__func__);
return -1;
}
if (!TestSynchBarrierWithFlags(SYNCHRONIZATION_BARRIER_FLAGS_BLOCK_ONLY, dwMaxThreads,
dwNumLoops))
{
fprintf(stderr,
"%s: TestSynchBarrierWithFlags(SYNCHRONIZATION_BARRIER_FLAGS_BLOCK_ONLY) "
"unecpectedly succeeded with lTotalThreads = -1\n",
__func__);
return -1;
}
printf("%s: Test successfully completed\n", __func__);
return 0;
}
|
