| /*- |
| * Copyright (C) 2014 Pietro Cerutti <gahr@gahr.ch> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #ifndef __HIREDIS_QT_H__ |
| #define __HIREDIS_QT_H__ |
| #include <QSocketNotifier> |
| #include "../async.h" |
| |
| static void RedisQtAddRead(void *); |
| static void RedisQtDelRead(void *); |
| static void RedisQtAddWrite(void *); |
| static void RedisQtDelWrite(void *); |
| static void RedisQtCleanup(void *); |
| |
| class RedisQtAdapter : public QObject { |
| |
| Q_OBJECT |
| |
| friend |
| void RedisQtAddRead(void * adapter) { |
| RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter); |
| a->addRead(); |
| } |
| |
| friend |
| void RedisQtDelRead(void * adapter) { |
| RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter); |
| a->delRead(); |
| } |
| |
| friend |
| void RedisQtAddWrite(void * adapter) { |
| RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter); |
| a->addWrite(); |
| } |
| |
| friend |
| void RedisQtDelWrite(void * adapter) { |
| RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter); |
| a->delWrite(); |
| } |
| |
| friend |
| void RedisQtCleanup(void * adapter) { |
| RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter); |
| a->cleanup(); |
| } |
| |
| public: |
| RedisQtAdapter(QObject * parent = 0) |
| : QObject(parent), m_ctx(0), m_read(0), m_write(0) { } |
| |
| ~RedisQtAdapter() { |
| if (m_ctx != 0) { |
| m_ctx->ev.data = NULL; |
| } |
| } |
| |
| int setContext(redisAsyncContext * ac) { |
| if (ac->ev.data != NULL) { |
| return REDIS_ERR; |
| } |
| m_ctx = ac; |
| m_ctx->ev.data = this; |
| m_ctx->ev.addRead = RedisQtAddRead; |
| m_ctx->ev.delRead = RedisQtDelRead; |
| m_ctx->ev.addWrite = RedisQtAddWrite; |
| m_ctx->ev.delWrite = RedisQtDelWrite; |
| m_ctx->ev.cleanup = RedisQtCleanup; |
| return REDIS_OK; |
| } |
| |
| private: |
| void addRead() { |
| if (m_read) return; |
| m_read = new QSocketNotifier(m_ctx->c.fd, QSocketNotifier::Read, 0); |
| connect(m_read, SIGNAL(activated(int)), this, SLOT(read())); |
| } |
| |
| void delRead() { |
| if (!m_read) return; |
| delete m_read; |
| m_read = 0; |
| } |
| |
| void addWrite() { |
| if (m_write) return; |
| m_write = new QSocketNotifier(m_ctx->c.fd, QSocketNotifier::Write, 0); |
| connect(m_write, SIGNAL(activated(int)), this, SLOT(write())); |
| } |
| |
| void delWrite() { |
| if (!m_write) return; |
| delete m_write; |
| m_write = 0; |
| } |
| |
| void cleanup() { |
| delRead(); |
| delWrite(); |
| } |
| |
| private slots: |
| void read() { redisAsyncHandleRead(m_ctx); } |
| void write() { redisAsyncHandleWrite(m_ctx); } |
| |
| private: |
| redisAsyncContext * m_ctx; |
| QSocketNotifier * m_read; |
| QSocketNotifier * m_write; |
| }; |
| |
| #endif /* !__HIREDIS_QT_H__ */ |