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Merge commit 'a4451535' into thread-next

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This commit is contained in:
Maria Matejka
2022-07-18 11:11:46 +02:00
parent 9901ca6fb3 a4451535c6
commit 4b6f5ee870
15 changed files with 427 additions and 212 deletions
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76
lib/timer.c
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@@ -32,6 +32,7 @@
#include "nest/bird.h"
#include "lib/coro.h"
#include "lib/heap.h"
#include "lib/resource.h"
#include "lib/timer.h"
@@ -40,53 +41,16 @@
struct timeloop main_timeloop;
#ifdef USE_PTHREADS
#include <pthread.h>
/* Data accessed and modified from proto/bfd/io.c */
pthread_key_t current_time_key;
_Thread_local struct timeloop *local_timeloop;
static inline struct timeloop *
timeloop_current(void)
{
return pthread_getspecific(current_time_key);
}
static inline void
timeloop_init_current(void)
{
pthread_key_create(&current_time_key, NULL);
pthread_setspecific(current_time_key, &main_timeloop);
}
_Atomic btime last_time;
_Atomic btime real_time;
void wakeup_kick_current(void);
#else
/* Just use main timelooop */
static inline struct timeloop * timeloop_current(void) { return &main_timeloop; }
static inline void timeloop_init_current(void) { }
#endif
btime
current_time(void)
{
return timeloop_current()->last_time;
}
btime
current_real_time(void)
{
struct timeloop *loop = timeloop_current();
if (!loop->real_time)
times_update_real_time(loop);
return loop->real_time;
}
#define TIMER_LESS(a,b) ((a)->expires < (b)->expires)
#define TIMER_SWAP(heap,a,b,t) (t = heap[a], heap[a] = heap[b], heap[b] = t, \
@@ -138,30 +102,29 @@ tm_new(pool *p)
void
tm_set(timer *t, btime when)
{
struct timeloop *loop = timeloop_current();
uint tc = timers_count(loop);
uint tc = timers_count(local_timeloop);
if (!t->expires)
{
t->index = ++tc;
t->expires = when;
BUFFER_PUSH(loop->timers) = t;
HEAP_INSERT(loop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP);
BUFFER_PUSH(local_timeloop->timers) = t;
HEAP_INSERT(local_timeloop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP);
}
else if (t->expires < when)
{
t->expires = when;
HEAP_INCREASE(loop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP, t->index);
HEAP_INCREASE(local_timeloop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP, t->index);
}
else if (t->expires > when)
{
t->expires = when;
HEAP_DECREASE(loop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP, t->index);
HEAP_DECREASE(local_timeloop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP, t->index);
}
#ifdef CONFIG_BFD
/* Hack to notify BFD loops */
if ((loop != &main_timeloop) && (t->index == 1))
if ((local_timeloop != &main_timeloop) && (t->index == 1))
wakeup_kick_current();
#endif
}
@@ -178,11 +141,10 @@ tm_stop(timer *t)
if (!t->expires)
return;
struct timeloop *loop = timeloop_current();
uint tc = timers_count(loop);
uint tc = timers_count(local_timeloop);
HEAP_DELETE(loop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP, t->index);
BUFFER_POP(loop->timers);
HEAP_DELETE(local_timeloop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP, t->index);
BUFFER_POP(local_timeloop->timers);
t->index = -1;
t->expires = 0;
@@ -191,8 +153,6 @@ tm_stop(timer *t)
void
timers_init(struct timeloop *loop, pool *p)
{
times_init(loop);
BUFFER_INIT(loop->timers, p, 4);
BUFFER_PUSH(loop->timers) = NULL;
}
@@ -205,8 +165,8 @@ timers_fire(struct timeloop *loop)
btime base_time;
timer *t;
times_update(loop);
base_time = loop->last_time;
times_update();
base_time = current_time();
while (t = timers_first(loop))
{
@@ -217,8 +177,8 @@ timers_fire(struct timeloop *loop)
{
btime when = t->expires + t->recurrent;
if (when <= loop->last_time)
when = loop->last_time + t->recurrent;
if (when <= base_time)
when = base_time + t->recurrent;
if (t->randomize)
when += random() % (t->randomize + 1);
@@ -241,7 +201,7 @@ void
timer_init(void)
{
timers_init(&main_timeloop, &root_pool);
timeloop_init_current();
local_timeloop = &main_timeloop;
}