void Curl_conncache_close_all_connections(struct conncache *connc)
{
struct connectdata *conn;
conn = Curl_conncache_find_first_connection(connc);
while(conn) {
SIGPIPE_VARIABLE(pipe_st);
conn->data = connc->closure_handle;
sigpipe_ignore(conn->data, &pipe_st);
conn->data->easy_conn = NULL; /* clear the easy handle's connection
pointer */
/* This will remove the connection from the cache */
connclose(conn, "kill all");
(void)Curl_disconnect(connc->closure_handle, conn, FALSE);
sigpipe_restore(&pipe_st);
conn = Curl_conncache_find_first_connection(connc);
}
if(connc->closure_handle) {
SIGPIPE_VARIABLE(pipe_st);
sigpipe_ignore(connc->closure_handle, &pipe_st);
Curl_hostcache_clean(connc->closure_handle,
connc->closure_handle->dns.hostcache);
Curl_close(connc->closure_handle);
sigpipe_restore(&pipe_st);
}
}
/*
* easy_perform() is the external interface that performs a blocking
* transfer as previously setup.
*
* CONCEPT: This function creates a multi handle, adds the easy handle to it,
* runs curl_multi_perform() until the transfer is done, then detaches the
* easy handle, destroys the multi handle and returns the easy handle's return
* code.
*
* REALITY: it can't just create and destroy the multi handle that easily. It
* needs to keep it around since if this easy handle is used again by this
* function, the same multi handle must be re-used so that the same pools and
* caches can be used.
*
* DEBUG: if 'events' is set TRUE, this function will use a replacement engine
* instead of curl_multi_perform() and use curl_multi_socket_action().
*/
static CURLcode easy_perform(struct Curl_easy *data, bool events)
{
struct Curl_multi *multi;
CURLMcode mcode;
CURLcode result = CURLE_OK;
SIGPIPE_VARIABLE(pipe_st);
if(!data)
return CURLE_BAD_FUNCTION_ARGUMENT;
if(data->multi) {
failf(data, "easy handle already used in multi handle");
return CURLE_FAILED_INIT;
}
if(data->multi_easy)
multi = data->multi_easy;
else {
/* this multi handle will only ever have a single easy handled attached
to it, so make it use minimal hashes */
multi = Curl_multi_handle(1, 3);
if(!multi)
return CURLE_OUT_OF_MEMORY;
data->multi_easy = multi;
}
/* Copy the MAXCONNECTS option to the multi handle */
curl_multi_setopt(multi, CURLMOPT_MAXCONNECTS, data->set.maxconnects);
mcode = curl_multi_add_handle(multi, data);
if(mcode) {
curl_multi_cleanup(multi);
if(mcode == CURLM_OUT_OF_MEMORY)
return CURLE_OUT_OF_MEMORY;
else
return CURLE_FAILED_INIT;
}
sigpipe_ignore(data, &pipe_st);
/* assign this after curl_multi_add_handle() since that function checks for
it and rejects this handle otherwise */
data->multi = multi;
/* run the transfer */
result = events ? easy_events(multi) : easy_transfer(multi);
/* ignoring the return code isn't nice, but atm we can't really handle
a failure here, room for future improvement! */
(void)curl_multi_remove_handle(multi, data);
sigpipe_restore(&pipe_st);
/* The multi handle is kept alive, owned by the easy handle */
return result;
}
/*
* curl_easy_cleanup() is the external interface to cleaning/freeing the given
* easy handle.
*/
void curl_easy_cleanup(struct Curl_easy *data)
{
SIGPIPE_VARIABLE(pipe_st);
if(!data)
return;
sigpipe_ignore(data, &pipe_st);
Curl_close(data);
sigpipe_restore(&pipe_st);
}
/*
* curl_easy_cleanup() is the external interface to cleaning/freeing the given
* easy handle.
*/
void curl_easy_cleanup(CURL *curl)
{
struct SessionHandle *data = (struct SessionHandle *)curl;
SIGPIPE_VARIABLE(pipe_st);
if(!data)
return;
sigpipe_ignore(data, &pipe_st);
Curl_close(data);
sigpipe_restore(&pipe_st);
}