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
|
/* Processed by ecpg (regression mode) */
/* These include files are added by the preprocessor */
#include <ecpglib.h>
#include <ecpgerrno.h>
#include <sqlca.h>
/* End of automatic include section */
#define ECPGdebug(X,Y) ECPGdebug((X)+100,(Y))
#line 1 "thread.pgc"
/*
* Thread test program
* by Philip Yarra & Lee Kindness.
*/
#include <stdint.h>
#include <stdlib.h>
#include "ecpg_config.h"
#ifndef ENABLE_THREAD_SAFETY
int
main(void)
{
printf("No threading enabled.\n");
return 0;
}
#else
#ifndef WIN32
#include <pthread.h>
#else
#include <windows.h>
#include <locale.h>
#endif
#line 1 "regression.h"
#line 24 "thread.pgc"
void *test_thread(void *arg);
int nthreads = 10;
int iterations = 20;
int main()
{
#ifndef WIN32
pthread_t *threads;
#else
HANDLE *threads;
#endif
intptr_t n;
/* exec sql begin declare section */
#line 40 "thread.pgc"
int l_rows ;
/* exec sql end declare section */
#line 41 "thread.pgc"
/* Do not switch on debug output for regression tests. The threads get executed in
* more or less random order */
/* ECPGdebug(1, stderr); */
/* setup test_thread table */
{ ECPGconnect(__LINE__, 0, "ecpg1_regression" , NULL, NULL , NULL, 0); }
#line 48 "thread.pgc"
{ ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "drop table test_thread", ECPGt_EOIT, ECPGt_EORT);}
#line 49 "thread.pgc"
/* DROP might fail */
{ ECPGtrans(__LINE__, NULL, "commit");}
#line 50 "thread.pgc"
{ ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "create table test_thread ( tstamp timestamp not null default cast ( timeofday ( ) as timestamp ) , thread text not null , iteration integer not null , primary key ( thread , iteration ) )", ECPGt_EOIT, ECPGt_EORT);}
#line 55 "thread.pgc"
{ ECPGtrans(__LINE__, NULL, "commit");}
#line 56 "thread.pgc"
{ ECPGdisconnect(__LINE__, "CURRENT");}
#line 57 "thread.pgc"
/* create, and start, threads */
threads = calloc(nthreads, sizeof(threads[0]));
if( threads == NULL )
{
fprintf(stderr, "Cannot alloc memory\n");
return 1;
}
for( n = 0; n < nthreads; n++ )
{
#ifndef WIN32
pthread_create(&threads[n], NULL, test_thread, (void *) (n + 1));
#else
threads[n] = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) (void (*) (void)) test_thread, (void *) (n + 1), 0, NULL);
#endif
}
/* wait for thread completion */
#ifndef WIN32
for( n = 0; n < nthreads; n++ )
{
pthread_join(threads[n], NULL);
}
#else
WaitForMultipleObjects(nthreads, threads, TRUE, INFINITE);
#endif
free(threads);
/* and check results */
{ ECPGconnect(__LINE__, 0, "ecpg1_regression" , NULL, NULL , NULL, 0); }
#line 87 "thread.pgc"
{ ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "select count ( * ) from test_thread", ECPGt_EOIT,
ECPGt_int,&(l_rows),(long)1,(long)1,sizeof(int),
ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EORT);}
#line 88 "thread.pgc"
{ ECPGtrans(__LINE__, NULL, "commit");}
#line 89 "thread.pgc"
{ ECPGdisconnect(__LINE__, "CURRENT");}
#line 90 "thread.pgc"
if( l_rows == (nthreads * iterations) )
printf("Success.\n");
else
printf("ERROR: Failure - expecting %d rows, got %d.\n", nthreads * iterations, l_rows);
return 0;
}
void *test_thread(void *arg)
{
long threadnum = (intptr_t) arg;
/* exec sql begin declare section */
#line 104 "thread.pgc"
int l_i ;
#line 105 "thread.pgc"
char l_connection [ 128 ] ;
/* exec sql end declare section */
#line 106 "thread.pgc"
/* build up connection name, and connect to database */
#ifndef _MSC_VER
snprintf(l_connection, sizeof(l_connection), "thread_%03ld", threadnum);
#else
_snprintf(l_connection, sizeof(l_connection), "thread_%03ld", threadnum);
#endif
/* exec sql whenever sqlerror sqlprint ; */
#line 114 "thread.pgc"
{ ECPGconnect(__LINE__, 0, "ecpg1_regression" , NULL, NULL , l_connection, 0);
#line 115 "thread.pgc"
if (sqlca.sqlcode < 0) sqlprint();}
#line 115 "thread.pgc"
if( sqlca.sqlcode != 0 )
{
printf("%s: ERROR: cannot connect to database!\n", l_connection);
return NULL;
}
{ ECPGtrans(__LINE__, l_connection, "begin");
#line 121 "thread.pgc"
if (sqlca.sqlcode < 0) sqlprint();}
#line 121 "thread.pgc"
/* insert into test_thread table */
for( l_i = 1; l_i <= iterations; l_i++ )
{
{ ECPGdo(__LINE__, 0, 1, l_connection, 0, ECPGst_normal, "insert into test_thread ( thread , iteration ) values ( $1 , $2 )",
ECPGt_char,(l_connection),(long)128,(long)1,(128)*sizeof(char),
ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L,
ECPGt_int,&(l_i),(long)1,(long)1,sizeof(int),
ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, ECPGt_EORT);
#line 126 "thread.pgc"
if (sqlca.sqlcode < 0) sqlprint();}
#line 126 "thread.pgc"
if( sqlca.sqlcode != 0 )
printf("%s: ERROR: insert failed!\n", l_connection);
}
/* all done */
{ ECPGtrans(__LINE__, l_connection, "commit");
#line 132 "thread.pgc"
if (sqlca.sqlcode < 0) sqlprint();}
#line 132 "thread.pgc"
{ ECPGdisconnect(__LINE__, l_connection);
#line 133 "thread.pgc"
if (sqlca.sqlcode < 0) sqlprint();}
#line 133 "thread.pgc"
return NULL;
}
#endif /* ENABLE_THREAD_SAFETY */
|
