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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| license@swoole.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Tianfeng Han <rango@swoole.com> |
+----------------------------------------------------------------------+
*/
#pragma once
#include "php_swoole_cxx.h"
#ifdef SW_USE_CURL
#include "swoole_util.h"
SW_EXTERN_C_BEGIN
#include <curl/curl.h>
#include <curl/multi.h>
#include "thirdparty/php/curl/curl_private.h"
SW_EXTERN_C_END
namespace swoole {
namespace curl {
class Multi;
struct HandleSocket {
network::Socket *socket;
int event_bitmask;
int event_fd;
int action;
};
struct Handle {
CURL *cp;
Multi *multi;
std::unordered_map<int, HandleSocket *> sockets;
Handle(CURL *_cp) {
cp = _cp;
multi = nullptr;
}
HandleSocket *create_socket(curl_socket_t sockfd);
void destroy_socket(curl_socket_t sockfd);
};
Handle *get_handle(CURL *cp);
Handle *create_handle(CURL *ch);
void destroy_handle(CURL *ch);
struct Selector {
bool timer_callback = false;
std::set<Handle *> active_handles;
};
class Multi {
CURLM *multi_handle_;
TimerNode *timer = nullptr;
long timeout_ms_ = 0;
Coroutine *co = nullptr;
int running_handles_ = 0;
int last_sockfd;
int event_count_ = 0;
bool defer_callback = false;
std::unique_ptr<Selector> selector;
CURLcode read_info();
HandleSocket *create_socket(Handle *handle, curl_socket_t sockfd);
void set_event(CURL *cp, void *socket_ptr, curl_socket_t sockfd, int action);
void del_event(CURL *cp, void *socket_ptr, curl_socket_t sockfd);
void add_timer(long timeout_ms) {
if (timer && swoole_timer_is_available()) {
swoole_timer_del(timer);
}
timeout_ms_ = timeout_ms;
timer = swoole_timer_add(timeout_ms, false, [this](Timer *timer, TimerNode *tnode) {
this->timer = nullptr;
callback(nullptr, 0);
});
}
void del_timer() {
if (timer && swoole_timer_is_available()) {
swoole_timer_del(timer);
timeout_ms_ = -1;
timer = nullptr;
}
}
void set_timer() {
long _timeout_ms = 0;
curl_multi_timeout(multi_handle_, &_timeout_ms);
handle_timeout(multi_handle_, _timeout_ms, this);
}
public:
Multi() {
multi_handle_ = curl_multi_init();
co = nullptr;
curl_multi_setopt(multi_handle_, CURLMOPT_SOCKETFUNCTION, handle_socket);
curl_multi_setopt(multi_handle_, CURLMOPT_TIMERFUNCTION, handle_timeout);
curl_multi_setopt(multi_handle_, CURLMOPT_SOCKETDATA, this);
curl_multi_setopt(multi_handle_, CURLMOPT_TIMERDATA, this);
}
~Multi() {
del_timer();
curl_multi_cleanup(multi_handle_);
}
CURLM *get_multi_handle() {
return multi_handle_;
}
int get_running_handles() {
return running_handles_;
}
void set_selector(Selector *_selector) {
selector.reset(_selector);
}
CURLMcode add_handle(Handle *handle);
CURLMcode remove_handle(Handle *handle);
CURLMcode perform() {
return curl_multi_perform(multi_handle_, &running_handles_);
}
int get_event(int action) {
return action == CURL_POLL_IN ? SW_EVENT_READ : SW_EVENT_WRITE;
}
Coroutine *check_bound_co() {
if (co) {
swoole_fatal_error(SW_ERROR_CO_HAS_BEEN_BOUND, "cURL is executing, cannot be operated");
return nullptr;
}
return Coroutine::get_current_safe();
}
CURLcode exec(Handle *handle);
long select(php_curlm *mh, double timeout = -1);
void callback(Handle *handle, int event_bitmask, int sockfd = -1);
static int cb_readable(Reactor *reactor, Event *event);
static int cb_writable(Reactor *reactor, Event *event);
static int cb_error(Reactor *reactor, Event *event);
static int handle_socket(CURL *easy, curl_socket_t s, int action, void *userp, void *socketp);
static int handle_timeout(CURLM *multi, long timeout_ms, void *userp);
};
}; // namespace curl
} // namespace swoole
#endif
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