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
|
#ifndef __CURL_SESSION_PROVIDER_
#define __CURL_SESSION_PROVIDER_
#include <curl/curl.h>
#include <map>
#include <pthread.h>
#include <string>
class CurlSessionProvider {
public:
// non thread safe:
CurlSessionProvider();
~CurlSessionProvider();
// thread-safe functions:
CURL *get_easy_session(std::string key,
int timeout = 0); // this is intended to block if the handle for the
// current key is in use and single_session_per_key
void return_session(std::string key, CURL *&); // return a handle. this unblocks another pending
// request for this key if single_session_per_key
bool inUse(std::string key); // check whether a key is in use (does not guarantee that get...
// will not block)
protected:
class CurlUsage {
public:
CurlUsage() : eh(0), inUse(false) { mutex = PTHREAD_MUTEX_INITIALIZER; };
CURL *eh;
bool inUse;
pthread_mutex_t mutex;
};
typedef std::map<std::string, CurlUsage>::iterator map_it;
typedef std::map<std::string, CurlUsage>::const_iterator cmap_it;
std::map<std::string, CurlUsage> _easy_handle_map;
private:
pthread_mutex_t _map_mutex;
};
// var to a global/single instance. needs to be initialzed e.g. in main()
extern CurlSessionProvider *curlSessionProvider;
#endif
|
