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bird/sysdep/unix/io-loop.h

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BFD work in progress. Now it compiles and mostly works.
2013-09-16 21:57:40 +00:00
/*
* BIRD -- I/O and event loop
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
Initial BFD commit, work in progress.
2013-09-10 10:09:36 +00:00
Converting the former BFD loop to a universal IO loop and protocol loop. There is a simple universal IO loop, taking care of events, timers and sockets. Primarily, one instance of a protocol should use exactly one IO loop to do all its work, as is now done in BFD. Contrary to previous versions, the loop is now launched and cleaned by the nest/proto.c code, allowing for a protocol to just request its own loop by setting the loop's lock order in config higher than the_bird. It is not supported nor checked if any protocol changed the requested lock order in reconfigure. No protocol should do it at all.
2021-06-19 18:50:18 +00:00
#ifndef _BIRD_SYSDEP_UNIX_IO_LOOP_H_
#define _BIRD_SYSDEP_UNIX_IO_LOOP_H_
Initial BFD commit, work in progress.
2013-09-10 10:09:36 +00:00
Introducing basic RCU primitives for lock-less shared data structures
2021-11-12 21:58:40 +00:00
#include "lib/rcu.h"
Pipe kick-and-drain packed into a neat structure and functions.
2022-09-20 15:01:50 +00:00
struct pipe
{
int fd[2];
};
void pipe_new(struct pipe *);
void pipe_pollin(struct pipe *, struct pollfd *);
void pipe_drain(struct pipe *);
void pipe_kick(struct pipe *);
Converting the former BFD loop to a universal IO loop and protocol loop. There is a simple universal IO loop, taking care of events, timers and sockets. Primarily, one instance of a protocol should use exactly one IO loop to do all its work, as is now done in BFD. Contrary to previous versions, the loop is now launched and cleaned by the nest/proto.c code, allowing for a protocol to just request its own loop by setting the loop's lock order in config higher than the_bird. It is not supported nor checked if any protocol changed the requested lock order in reconfigure. No protocol should do it at all.
2021-06-19 18:50:18 +00:00
struct birdloop
{
pool *pool;
BFD work in progress. Now it compiles and mostly works.
2013-09-16 21:57:40 +00:00
Converting the former BFD loop to a universal IO loop and protocol loop. There is a simple universal IO loop, taking care of events, timers and sockets. Primarily, one instance of a protocol should use exactly one IO loop to do all its work, as is now done in BFD. Contrary to previous versions, the loop is now launched and cleaned by the nest/proto.c code, allowing for a protocol to just request its own loop by setting the loop's lock order in config higher than the_bird. It is not supported nor checked if any protocol changed the requested lock order in reconfigure. No protocol should do it at all.
2021-06-19 18:50:18 +00:00
struct timeloop time;
event_list event_list;
list sock_list;
uint sock_num;
BFD work in progress. Now it compiles and mostly works.
2013-09-16 21:57:40 +00:00
Converting the former BFD loop to a universal IO loop and protocol loop. There is a simple universal IO loop, taking care of events, timers and sockets. Primarily, one instance of a protocol should use exactly one IO loop to do all its work, as is now done in BFD. Contrary to previous versions, the loop is now launched and cleaned by the nest/proto.c code, allowing for a protocol to just request its own loop by setting the loop's lock order in config higher than the_bird. It is not supported nor checked if any protocol changed the requested lock order in reconfigure. No protocol should do it at all.
2021-06-19 18:50:18 +00:00
BUFFER(sock *) poll_sk;
BUFFER(struct pollfd) poll_fd;
u8 poll_changed;
u8 close_scheduled;
Initial BFD commit, work in progress.
2013-09-10 10:09:36 +00:00
Moved the thread starting code to IO loop code
2022-07-28 17:49:03 +00:00
uint ping_pending;
Converting the former BFD loop to a universal IO loop and protocol loop. There is a simple universal IO loop, taking care of events, timers and sockets. Primarily, one instance of a protocol should use exactly one IO loop to do all its work, as is now done in BFD. Contrary to previous versions, the loop is now launched and cleaned by the nest/proto.c code, allowing for a protocol to just request its own loop by setting the loop's lock order in config higher than the_bird. It is not supported nor checked if any protocol changed the requested lock order in reconfigure. No protocol should do it at all.
2021-06-19 18:50:18 +00:00
_Atomic u32 ping_sent;
Pipe kick-and-drain packed into a neat structure and functions.
2022-09-20 15:01:50 +00:00
struct pipe wakeup;
Initial BFD commit, work in progress.
2013-09-10 10:09:36 +00:00
Moved the thread starting code to IO loop code
2022-07-28 17:49:03 +00:00
pthread_t thread_id;
pthread_attr_t thread_attr;
Introducing basic RCU primitives for lock-less shared data structures
2021-11-12 21:58:40 +00:00
struct rcu_birdloop rcu;
Converting the former BFD loop to a universal IO loop and protocol loop. There is a simple universal IO loop, taking care of events, timers and sockets. Primarily, one instance of a protocol should use exactly one IO loop to do all its work, as is now done in BFD. Contrary to previous versions, the loop is now launched and cleaned by the nest/proto.c code, allowing for a protocol to just request its own loop by setting the loop's lock order in config higher than the_bird. It is not supported nor checked if any protocol changed the requested lock order in reconfigure. No protocol should do it at all.
2021-06-19 18:50:18 +00:00
uint links;
BFD protocol, ready for release. Supports OSPF and BGP and also statically configured sessions.
2013-11-19 21:33:48 +00:00
Loop flags: a simple idempotent event announcement mechanism
2022-09-12 08:24:55 +00:00
_Atomic u32 flags;
struct birdloop_flag_handler *flag_handler;
Converting the former BFD loop to a universal IO loop and protocol loop. There is a simple universal IO loop, taking care of events, timers and sockets. Primarily, one instance of a protocol should use exactly one IO loop to do all its work, as is now done in BFD. Contrary to previous versions, the loop is now launched and cleaned by the nest/proto.c code, allowing for a protocol to just request its own loop by setting the loop's lock order in config higher than the_bird. It is not supported nor checked if any protocol changed the requested lock order in reconfigure. No protocol should do it at all.
2021-06-19 18:50:18 +00:00
void (*stopped)(void *data);
void *stop_data;
BFD work in progress. Now it compiles and mostly works.
2013-09-16 21:57:40 +00:00
Converting the former BFD loop to a universal IO loop and protocol loop. There is a simple universal IO loop, taking care of events, timers and sockets. Primarily, one instance of a protocol should use exactly one IO loop to do all its work, as is now done in BFD. Contrary to previous versions, the loop is now launched and cleaned by the nest/proto.c code, allowing for a protocol to just request its own loop by setting the loop's lock order in config higher than the_bird. It is not supported nor checked if any protocol changed the requested lock order in reconfigure. No protocol should do it at all.
2021-06-19 18:50:18 +00:00
struct birdloop *prev_loop;
};
Initial BFD commit, work in progress.
2013-09-10 10:09:36 +00:00
Converting the former BFD loop to a universal IO loop and protocol loop. There is a simple universal IO loop, taking care of events, timers and sockets. Primarily, one instance of a protocol should use exactly one IO loop to do all its work, as is now done in BFD. Contrary to previous versions, the loop is now launched and cleaned by the nest/proto.c code, allowing for a protocol to just request its own loop by setting the loop's lock order in config higher than the_bird. It is not supported nor checked if any protocol changed the requested lock order in reconfigure. No protocol should do it at all.
2021-06-19 18:50:18 +00:00
#endif
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