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
|
#include "test.h"
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
const char *HOSTHEADER = "Host: www.host.foo.com";
const char *JAR = "log/jar506";
#define THREADS 2
/* struct containing data of a thread */
struct Tdata {
CURLSH *share;
char *url;
};
struct userdata {
char *text;
int counter;
};
/* lock callback */
void lock(CURL *handle, curl_lock_data data, curl_lock_access access,
void *useptr )
{
const char *what;
struct userdata *user = (struct userdata *)useptr;
(void)handle;
(void)access;
switch ( data ) {
case CURL_LOCK_DATA_SHARE:
what = "share";
break;
case CURL_LOCK_DATA_DNS:
what = "dns";
break;
case CURL_LOCK_DATA_COOKIE:
what = "cookie";
break;
default:
fprintf(stderr, "lock: no such data: %d\n",data);
return;
}
printf("lock: %-6s <%s>: %d\n", what, user->text, user->counter);
user->counter++;
}
/* unlock callback */
void unlock(CURL *handle, curl_lock_data data, void *useptr )
{
const char *what;
struct userdata *user = (struct userdata *)useptr;
(void)handle;
switch ( data ) {
case CURL_LOCK_DATA_SHARE:
what = "share";
break;
case CURL_LOCK_DATA_DNS:
what = "dns";
break;
case CURL_LOCK_DATA_COOKIE:
what = "cookie";
break;
default:
fprintf(stderr, "unlock: no such data: %d\n",data);
return;
}
printf("unlock: %-6s <%s>: %d\n", what, user->text, user->counter);
user->counter++;
}
/* build host entry */
struct curl_slist *sethost(struct curl_slist *headers)
{
(void)headers;
return curl_slist_append(NULL, HOSTHEADER );
}
/* the dummy thread function */
void *fire(void *ptr)
{
CURLcode code;
struct curl_slist *headers;
struct Tdata *tdata = (struct Tdata*)ptr;
CURL *curl = curl_easy_init();
int i=0;
headers = sethost(NULL);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, (void*)headers);
curl_easy_setopt(curl, CURLOPT_URL, (void*)tdata->url);
printf( "CURLOPT_SHARE\n" );
curl_easy_setopt(curl, CURLOPT_SHARE, (void*)tdata->share);
printf( "PERFORM\n" );
code = curl_easy_perform(curl);
if( code != CURLE_OK ) {
fprintf(stderr, "perform url '%s' repeat %d failed, curlcode %d\n",
tdata->url, i, code);
}
printf( "CLEANUP\n" );
curl_easy_cleanup(curl);
curl_slist_free_all(headers);
return NULL;
}
/* build request url */
char *suburl(char *base, int i)
{
int len = strlen(base);
char *url = (char *)malloc(len+5);
if (!url) {
abort();
}
strcpy(url, base);
strcat(url, "0000");
url[len+3] = 48+i;
return url;
}
/* test function */
int test(char *URL)
{
CURLcode res;
CURLSHcode scode;
char *url;
struct Tdata tdata;
CURL *curl;
CURLSH *share;
struct curl_slist *headers;
int i;
struct userdata user;
user.text = (char *)"Pigs in space";
user.counter = 0;
printf( "GLOBAL_INIT\n" );
curl_global_init( CURL_GLOBAL_ALL );
/* prepare share */
printf( "SHARE_INIT\n" );
share = curl_share_init();
curl_share_setopt( share, CURLSHOPT_LOCKFUNC, lock);
curl_share_setopt( share, CURLSHOPT_UNLOCKFUNC, unlock);
curl_share_setopt( share, CURLSHOPT_USERDATA, &user);
printf( "CURL_LOCK_DATA_COOKIE\n" );
curl_share_setopt( share, CURLSHOPT_SHARE, CURL_LOCK_DATA_COOKIE);
printf( "CURL_LOCK_DATA_DNS\n" );
curl_share_setopt( share, CURLSHOPT_SHARE, CURL_LOCK_DATA_DNS);
res = 0;
/* start treads */
for (i=1; i<=THREADS; i++ ) {
/* set thread data */
tdata.url = suburl( URL, i ); /* must be freed */
tdata.share = share;
/* simulate thread, direct call of "thread" function */
printf( "*** run %d\n",i );
fire( &tdata );
free( tdata.url );
}
/* fetch a another one and save cookies */
printf( "*** run %d\n", i );
curl = curl_easy_init();
url = suburl( URL, i );
headers = sethost( NULL );
curl_easy_setopt( curl, CURLOPT_HTTPHEADER, (void*)headers );
curl_easy_setopt( curl, CURLOPT_URL, url );
printf( "CURLOPT_SHARE\n" );
curl_easy_setopt( curl, CURLOPT_SHARE, share );
printf( "CURLOPT_COOKIEJAR\n" );
curl_easy_setopt( curl, CURLOPT_COOKIEJAR, JAR );
printf( "PERFORM\n" );
curl_easy_perform( curl );
/* try to free share, expect to fail because share is in use*/
printf( "try SHARE_CLEANUP...\n" );
scode = curl_share_cleanup( share );
if ( scode==CURLSHE_OK )
{
fprintf(stderr, "curl_share_cleanup succeed but error expected\n");
share = NULL;
} else {
printf( "SHARE_CLEANUP failed, correct\n" );
}
/* clean up last handle */
printf( "CLEANUP\n" );
curl_easy_cleanup( curl );
curl_slist_free_all( headers );
free(url);
/* free share */
printf( "SHARE_CLEANUP\n" );
scode = curl_share_cleanup( share );
if ( scode!=CURLSHE_OK )
{
fprintf(stderr, "curl_share_cleanup failed, code errno %d\n", scode);
}
printf( "GLOBAL_CLEANUP\n" );
curl_global_cleanup();
return res;
}
|
