
/*
 * Copyright (c) 2019, Redis Labs
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   * 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.
 *   * Neither the name of Redis nor the names of its contributors may be used
 *     to endorse or promote products derived from this software without
 *     specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT OWNER 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 __REDIS_CONNHELPERS_H
#define __REDIS_CONNHELPERS_H

#include "connection.h"

static inline void enterHandler(connection *conn) {
    conn->flags |= CONN_FLAG_IN_HANDLER;
}

static inline int exitHandler(connection *conn) {
    conn->flags &= ~CONN_FLAG_IN_HANDLER;
    if (conn->flags & CONN_FLAG_CLOSE_SCHEDULED) {
        connClose(conn);
        return 0;
    }
    return 1;
}

static inline int callHandler(connection *conn, ConnectionCallbackFunc handler) {
    conn->flags |= CONN_FLAG_IN_HANDLER;
    if (handler) handler(conn);
    conn->flags &= ~CONN_FLAG_IN_HANDLER;
    if (conn->flags & CONN_FLAG_CLOSE_SCHEDULED) {
        connClose(conn);
        return 0;
    }
    return 1;
}

#endif  /* __REDIS_CONNHELPERS_H */
