/*
+----------------------------------------------------------------------+
| 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> |
| Twosee <twose@qq.com> |
+----------------------------------------------------------------------+
*/
#pragma once
#include "swoole.h"
#include <sys/types.h>
namespace swoole {
enum {
SW_MSGQUEUE_ORIENT = 1,
SW_MSGQUEUE_BALANCE = 2,
};
struct QueueNode {
long mtype; /* type of received/sent message */
char mdata[sizeof(EventData)]; /* text of the message */
};
class MsgQueue {
private:
bool blocking_;
int msg_id_;
key_t msg_key_;
int flags_;
int perms_;
public:
explicit MsgQueue(key_t msg_key, bool blocking = true, int perms = 0);
~MsgQueue();
bool ready() {
return msg_id_ >= 0;
}
int get_id() {
return msg_id_;
}
void set_blocking(bool blocking);
bool set_capacity(size_t queue_bytes);
bool push(QueueNode *in, size_t mdata_length);
ssize_t pop(QueueNode *out, size_t mdata_size);
bool stat(size_t *queue_num, size_t *queue_bytes);
bool destroy();
};
} // namespace swoole
|