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+/*-
+ * 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__ */