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Event lists rewritten to a single linked list

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In multithreaded environment, we need to pass messages between workers.
This is done by queuing events to their respective queues. The
double-linked list is not really useful for that as it needs locking
everywhere.

This commit rewrites the event subsystem to use a single-linked list
where events are enqueued by a single atomic instruction and the queue
is processed after atomically moving the whole queue aside.
This commit is contained in:
Maria Matejka
2022-06-24 19:53:34 +02:00
parent 08c8484608
commit e91754f5b9
6 changed files with 159 additions and 135 deletions
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4
lib/io-loop.h
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@@ -14,12 +14,12 @@
#include "lib/event.h"
#include "lib/socket.h"
extern struct birdloop main_birdloop;
void sk_start(sock *s);
void sk_stop(sock *s);
void sk_reloop(sock *s, struct birdloop *loop);
extern struct birdloop main_birdloop;
/* Start a new birdloop owned by given pool and domain */
struct birdloop *birdloop_new(pool *p, uint order, const char *name);