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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 <mikan.tenny@gmail.com> |
| Twosee <twose@qq.com> |
+----------------------------------------------------------------------+
*/
#pragma once
#include "swoole.h"
#include "swoole_coroutine.h"
#include <sys/stat.h>
#include <iostream>
#include <string>
#include <list>
#include <queue>
namespace swoole {
namespace coroutine {
//-------------------------------------------------------------------------------
class Channel {
public:
enum opcode {
PRODUCER = 1,
CONSUMER = 2,
};
struct TimeoutMessage {
Channel *chan;
enum opcode type;
Coroutine *co;
bool error;
TimerNode *timer;
};
void *pop(double timeout = -1);
bool push(void *data, double timeout = -1);
bool close();
Channel(size_t _capacity = 1) : capacity(_capacity) {}
~Channel() {
if (!producer_queue.empty()) {
swoole_error_log(SW_LOG_WARNING,
SW_ERROR_CO_HAS_BEEN_DISCARDED,
"channel is destroyed, %zu producers will be discarded",
producer_queue.size());
}
if (!consumer_queue.empty()) {
swoole_error_log(SW_LOG_WARNING,
SW_ERROR_CO_HAS_BEEN_DISCARDED,
"channel is destroyed, %zu consumers will be discarded",
consumer_queue.size());
}
}
inline bool is_closed() {
return closed;
}
inline bool is_empty() {
return data_queue.size() == 0;
}
inline bool is_full() {
return data_queue.size() == capacity;
}
inline size_t length() {
return data_queue.size();
}
inline size_t consumer_num() {
return consumer_queue.size();
}
inline size_t producer_num() {
return producer_queue.size();
}
inline void *pop_data() {
if (data_queue.size() == 0) {
return nullptr;
}
void *data = data_queue.front();
data_queue.pop();
return data;
}
protected:
size_t capacity = 1;
bool closed = false;
std::list<Coroutine *> producer_queue;
std::list<Coroutine *> consumer_queue;
std::queue<void *> data_queue;
static void timer_callback(Timer *timer, TimerNode *tnode);
void yield(enum opcode type);
inline void consumer_remove(Coroutine *co) {
consumer_queue.remove(co);
}
inline void producer_remove(Coroutine *co) {
producer_queue.remove(co);
}
inline Coroutine *pop_coroutine(enum opcode type) {
Coroutine *co;
if (type == PRODUCER) {
co = producer_queue.front();
producer_queue.pop_front();
swTraceLog(SW_TRACE_CHANNEL, "resume producer cid=%ld", co->get_cid());
} else // if (type == CONSUMER)
{
co = consumer_queue.front();
consumer_queue.pop_front();
swTraceLog(SW_TRACE_CHANNEL, "resume consumer cid=%ld", co->get_cid());
}
return co;
}
};
//-------------------------------------------------------------------------------
} // namespace coroutine
} // namespace swoole
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