#include "setup.h"
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
#include "urldata.h"
#include "share.h"
#include "memory.h"
#include "memdebug.h"
CURLSH *
curl_share_init(void)
{
struct Curl_share *share =
(struct Curl_share *)malloc(sizeof(struct Curl_share));
if (share) {
memset (share, 0, sizeof(struct Curl_share));
share->specifier |= (1<<CURL_LOCK_DATA_SHARE);
}
return share;
}
CURLSHcode
curl_share_setopt(CURLSH *sh, CURLSHoption option, ...)
{
struct Curl_share *share = (struct Curl_share *)sh;
va_list param;
int type;
curl_lock_function lockfunc;
curl_unlock_function unlockfunc;
void *ptr;
if (share->dirty)
return CURLSHE_IN_USE;
va_start(param, option);
switch(option) {
case CURLSHOPT_SHARE:
type = va_arg(param, int);
share->specifier |= (1<<type);
switch( type ) {
case CURL_LOCK_DATA_DNS:
if (!share->hostcache) {
share->hostcache = Curl_mk_dnscache();
if(!share->hostcache)
return CURLSHE_NOMEM;
}
break;
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
case CURL_LOCK_DATA_COOKIE:
if (!share->cookies) {
share->cookies = Curl_cookie_init(NULL, NULL, NULL, TRUE );
if(!share->cookies)
return CURLSHE_NOMEM;
}
break;
#endif
case CURL_LOCK_DATA_SSL_SESSION:
case CURL_LOCK_DATA_CONNECT:
default:
return CURLSHE_BAD_OPTION;
}
break;
case CURLSHOPT_UNSHARE:
type = va_arg(param, int);
share->specifier &= ~(1<<type);
switch( type )
{
case CURL_LOCK_DATA_DNS:
if (share->hostcache) {
Curl_hash_destroy(share->hostcache);
share->hostcache = NULL;
}
break;
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
case CURL_LOCK_DATA_COOKIE:
if (share->cookies) {
Curl_cookie_cleanup(share->cookies);
share->cookies = NULL;
}
break;
#endif
case CURL_LOCK_DATA_SSL_SESSION:
break;
case CURL_LOCK_DATA_CONNECT:
break;
default:
return CURLSHE_BAD_OPTION;
}
break;
case CURLSHOPT_LOCKFUNC:
lockfunc = va_arg(param, curl_lock_function);
share->lockfunc = lockfunc;
break;
case CURLSHOPT_UNLOCKFUNC:
unlockfunc = va_arg(param, curl_unlock_function);
share->unlockfunc = unlockfunc;
break;
case CURLSHOPT_USERDATA:
ptr = va_arg(param, void *);
share->clientdata = ptr;
break;
default:
return CURLSHE_BAD_OPTION;
}
return CURLSHE_OK;
}
CURLSHcode
curl_share_cleanup(CURLSH *sh)
{
struct Curl_share *share = (struct Curl_share *)sh;
if (share == NULL)
return CURLSHE_INVALID;
if(share->lockfunc)
share->lockfunc(NULL, CURL_LOCK_DATA_SHARE, CURL_LOCK_ACCESS_SINGLE,
share->clientdata);
if (share->dirty) {
if(share->unlockfunc)
share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
return CURLSHE_IN_USE;
}
if(share->hostcache)
Curl_hash_destroy(share->hostcache);
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
if(share->cookies)
Curl_cookie_cleanup(share->cookies);
#endif
if(share->unlockfunc)
share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
free(share);
return CURLSHE_OK;
}
CURLSHcode
Curl_share_lock(struct SessionHandle *data, curl_lock_data type,
curl_lock_access accesstype)
{
struct Curl_share *share = data->share;
if (share == NULL)
return CURLSHE_INVALID;
if(share->specifier & (1<<type)) {
if(share->lockfunc)
share->lockfunc(data, type, accesstype, share->clientdata);
}
return CURLSHE_OK;
}
CURLSHcode
Curl_share_unlock(struct SessionHandle *data, curl_lock_data type)
{
struct Curl_share *share = data->share;
if (share == NULL)
return CURLSHE_INVALID;
if(share->specifier & (1<<type)) {
if(share->unlockfunc)
share->unlockfunc (data, type, share->clientdata);
}
return CURLSHE_OK;
}