diag/router/watch.h
Bjorn Andersson a3395140dd watch: Allow flow context to be associated with readq
Allow a flow context to be associated to a read queue and consider the
flow blockage when deciding to evaluate the associated file descriptor
for incoming data.

This allows clients to associate a read queue with the same flow context
as they will associate mbufs to be flow controlled with.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-02-19 15:59:46 -08:00

60 lines
2.3 KiB
C

/*
* Copyright (c) 2016, Bjorn Andersson <bjorn@kryo.se>
* All rights reserved.
*
* 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.
*
* 3. Neither the name of the copyright holder 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 HOLDER 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 __WATCH_H__
#define __WATCH_H__
#include <stdbool.h>
#include "list.h"
struct mbuf;
struct watch_flow;
int watch_add_readfd(int fd, int (*cb)(int, void*), void *data,
struct watch_flow *flow);
int watch_add_readq(int fd, struct list_head *queue,
int (*cb)(struct mbuf *mbuf, void *data), void *data);
int watch_add_writeq(int fd, struct list_head *queue);
void watch_remove_fd(int fd);
void watch_remove_writeq(int fd);
int watch_add_quit(int (*cb)(int, void*), void *data);
int watch_add_timer(void (*cb)(void *), void *data,
unsigned int interval, bool repeat);
void watch_quit(void);
void watch_run(void);
struct watch_flow;
struct watch_flow *watch_flow_new(void);
void watch_flow_inc(struct watch_flow *flow);
#endif