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/*
* BIRD -- I/O and event loop
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_SYSDEP_UNIX_IO_LOOP_H_
#define _BIRD_SYSDEP_UNIX_IO_LOOP_H_
#include "lib/rcu.h"
#include <pthread.h>
struct pipe
{
int fd[2];
};
struct pfd {
BUFFER(struct pollfd) pfd;
BUFFER(struct birdloop *) loop;
};
void sockets_prepare(struct birdloop *, struct pfd *);
void socket_changed(struct birdsock *);
void pipe_new(struct pipe *);
void pipe_pollin(struct pipe *, struct pfd *);
void pipe_drain(struct pipe *);
void pipe_kick(struct pipe *);
#define TIME_BY_SEC_SIZE 16
struct spent_time {
u64 total_ns;
u64 last_written_ns;
u64 by_sec_ns[TIME_BY_SEC_SIZE];
};
struct birdloop
{
node n;
event event;
timer timer;
pool *pool;
struct timeloop time;
event_list event_list;
list sock_list;
struct birdsock *sock_active;
int sock_num;
uint sock_changed:1;
uint ping_pending;
_Atomic u32 thread_transition;
#define LTT_PING 1
#define LTT_MOVE 2
_Atomic u32 flags;
struct birdloop_flag_handler *flag_handler;
void (*stopped)(void *data);
void *stop_data;
struct birdloop *prev_loop;
struct bird_thread *thread;
#define TIME_BY_SEC_SIZE 16
struct spent_time working, locking;
};
struct bird_thread
{
node n;
struct pipe wakeup;
event_list priority_events;
struct birdloop *meta;
pthread_t thread_id;
pthread_attr_t thread_attr;
struct rcu_thread rcu;
list loops;
struct birdloop_pickup_group *group;
pool *pool;
struct pfd *pfd;
event cleanup_event;
u8 sock_changed;
u8 busy_active;
u16 busy_counter;
uint loop_count;
u64 max_latency_ns;
u64 max_loop_time_ns;
struct spent_time overhead, idle;
};
#endif
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