CURLMcode curl_multi_cleanup(CURLM *multi_handle)
{
struct Curl_multi *multi=(struct Curl_multi *)multi_handle;
struct Curl_one_easy *easy;
struct Curl_one_easy *nexteasy;
if(GOOD_MULTI_HANDLE(multi)) {
multi->type = 0; /* not good anymore */
Curl_hash_destroy(multi->hostcache);
/* remove all easy handles */
easy = multi->easy.next;
while(easy) {
nexteasy=easy->next;
/* clear out the usage of the shared DNS cache */
easy->easy_handle->hostcache = NULL;
if (easy->msg)
free(easy->msg);
free(easy);
easy = nexteasy;
}
free(multi);
return CURLM_OK;
}
else
return CURLM_BAD_HANDLE;
}
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 /* CURL_DISABLE_HTTP */
if(share->unlockfunc)
share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
free(share);
return CURLSHE_OK;
}
/*
* Destroy and cleanup the global DNS cache
*/
void Curl_global_host_cache_dtor(void)
{
if(host_cache_initialized) {
Curl_hash_destroy(&hostname_cache);
host_cache_initialized = 0;
}
}
/*
* curl_easy_perform() is the external interface that performs a transfer
* previously setup.
*/
CURLcode curl_easy_perform(CURL *curl)
{
struct SessionHandle *data = (struct SessionHandle *)curl;
if(!data)
return CURLE_BAD_FUNCTION_ARGUMENT;
if ( ! (data->share && data->share->hostcache) ) {
if (Curl_global_host_cache_use(data) &&
data->hostcache != Curl_global_host_cache_get()) {
if (data->hostcache)
Curl_hash_destroy(data->hostcache);
data->hostcache = Curl_global_host_cache_get();
}
if (!data->hostcache) {
data->hostcache = Curl_mk_dnscache();
if(!data->hostcache)
/* While we possibly could survive and do good without a host cache,
the fact that creating it failed indicates that things are truly
screwed up and we should bail out! */
return CURLE_OUT_OF_MEMORY;
}
}
return Curl_perform(data);
}
CURLSHcode
curl_share_cleanup(CURLSH *sh)
{
struct Curl_share *share = (struct Curl_share *)sh;
if (share == NULL)
return CURLSHE_INVALID;
share->lockfunc(NULL, CURL_LOCK_DATA_SHARE, CURL_LOCK_ACCESS_SINGLE,
share->clientdata);
if (share->dirty)
{
share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
return CURLSHE_IN_USE;
}
if(share->hostcache)
Curl_hash_destroy(share->hostcache);
if(share->cookies)
Curl_cookie_cleanup(share->cookies);
share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
free (share);
return CURLSHE_OK;
}
void Curl_hostcache_destroy(struct SessionHandle *data)
{
Curl_hostcache_clean(data);
Curl_hash_destroy(data->dns.hostcache);
data->dns.hostcachetype = HCACHE_NONE;
data->dns.hostcache = NULL;
}
void Curl_conncache_destroy(struct conncache *connc)
{
if(connc) {
Curl_hash_destroy(connc->hash);
connc->hash = NULL;
free(connc);
}
}
static void unit_stop( void )
{
if (data_node) {
Curl_freeaddrinfo(data_node->addr);
free(data_node);
}
free(data_key);
Curl_hash_destroy(&hp);
curl_easy_cleanup(data);
curl_global_cleanup();
}
void Curl_hostcache_destroy(struct SessionHandle *data)
{
/* Entries added to the hostcache with the CURLOPT_RESOLVE function are
* still present in the cache with the inuse counter set to 1. Detect them
* and cleanup!
*/
Curl_hash_clean_with_criterium(data->dns.hostcache, data, hostcache_inuse);
Curl_hash_destroy(data->dns.hostcache);
data->dns.hostcachetype = HCACHE_NONE;
data->dns.hostcache = NULL;
}
/*
* curl_easy_perform() is the external interface that performs a transfer
* previously setup.
*/
CURLcode curl_easy_perform(CURL *curl)
{
struct SessionHandle *data = (struct SessionHandle *)curl;
if(!data)
return CURLE_BAD_FUNCTION_ARGUMENT;
if( ! (data->share && data->share->hostcache) ) {
/* this handle is not using a shared dns cache */
if(data->set.global_dns_cache &&
(data->dns.hostcachetype != HCACHE_GLOBAL)) {
/* global dns cache was requested but still isn't */
struct curl_hash *ptr;
if(data->dns.hostcachetype == HCACHE_PRIVATE) {
/* if the current cache is private, kill it first */
Curl_hash_destroy(data->dns.hostcache);
data->dns.hostcachetype = HCACHE_NONE;
data->dns.hostcache = NULL;
}
ptr = Curl_global_host_cache_init();
if(ptr) {
/* only do this if the global cache init works */
data->dns.hostcache = ptr;
data->dns.hostcachetype = HCACHE_GLOBAL;
}
}
if(!data->dns.hostcache) {
data->dns.hostcachetype = HCACHE_PRIVATE;
data->dns.hostcache = Curl_mk_dnscache();
if(!data->dns.hostcache)
/* While we possibly could survive and do good without a host cache,
the fact that creating it failed indicates that things are truly
screwed up and we should bail out! */
return CURLE_OUT_OF_MEMORY;
}
}
if(!data->state.connc) {
/* oops, no connection cache, make one up */
data->state.connc = Curl_mk_connc(CONNCACHE_PRIVATE, -1L);
if(!data->state.connc)
return CURLE_OUT_OF_MEMORY;
}
return Curl_perform(data);
}
static CURLcode http2_disconnect(struct connectdata *conn,
bool dead_connection)
{
struct http_conn *c = &conn->proto.httpc;
(void)dead_connection;
DEBUGF(infof(conn->data, "HTTP/2 DISCONNECT starts now\n"));
nghttp2_session_del(c->h2);
Curl_safefree(c->inbuf);
Curl_hash_destroy(&c->streamsh);
DEBUGF(infof(conn->data, "HTTP/2 DISCONNECT done\n"));
return CURLE_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);
share->hostcache = NULL;
}
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
if(share->cookies)
Curl_cookie_cleanup(share->cookies);
#endif
#ifdef USE_SSL
if(share->sslsession) {
size_t i;
for(i = 0; i < share->max_ssl_sessions; i++)
Curl_ssl_kill_session(&(share->sslsession[i]));
free(share->sslsession);
}
#endif
if(share->unlockfunc)
share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
free(share);
return CURLSHE_OK;
}
/*
* curl_easy_perform() is the external interface that performs a transfer
* previously setup.
*/
CURLcode curl_easy_perform(CURL *curl)
{
struct SessionHandle *data = (struct SessionHandle *)curl;
if(!data)
return CURLE_BAD_FUNCTION_ARGUMENT;
if ( ! (data->share && data->share->hostcache) ) {
if (Curl_global_host_cache_use(data) &&
(data->dns.hostcachetype != HCACHE_GLOBAL)) {
if (data->dns.hostcachetype == HCACHE_PRIVATE)
Curl_hash_destroy(data->dns.hostcache);
data->dns.hostcache = Curl_global_host_cache_get();
data->dns.hostcachetype = HCACHE_GLOBAL;
}
if (!data->dns.hostcache) {
data->dns.hostcachetype = HCACHE_PRIVATE;
data->dns.hostcache = Curl_mk_dnscache();
if(!data->dns.hostcache)
/* While we possibly could survive and do good without a host cache,
the fact that creating it failed indicates that things are truly
screwed up and we should bail out! */
return CURLE_OUT_OF_MEMORY;
}
}
if(!data->state.connc) {
/* oops, no connection cache, make one up */
data->state.connc = Curl_mk_connc(CONNCACHE_PRIVATE);
if(!data->state.connc)
return CURLE_OUT_OF_MEMORY;
}
return Curl_perform(data);
}
static void unit_stop(void)
{
Curl_hash_destroy(&hash_static);
}
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)
/* don't allow setting options while one or more handles are already
using this share */
return CURLSHE_IN_USE;
va_start(param, option);
switch(option) {
case CURLSHOPT_SHARE:
/* this is a type this share will 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 /* CURL_DISABLE_HTTP */
case CURL_LOCK_DATA_SSL_SESSION: /* not supported (yet) */
case CURL_LOCK_DATA_CONNECT: /* not supported (yet) */
default:
return CURLSHE_BAD_OPTION;
}
break;
case CURLSHOPT_UNSHARE:
/* this is a type this share will no longer share */
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 /* CURL_DISABLE_HTTP */
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;
}
void Curl_conncache_destroy(struct conncache *connc)
{
if(connc)
Curl_hash_destroy(&connc->hash);
}
