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-rw-r--r--libhw/common_include/libhw/generic/alarmclock.h2
-rw-r--r--libhw/host_alarmclock.c147
-rw-r--r--libhw/host_net.c4
-rw-r--r--libhw/host_sigrt.c2
-rw-r--r--libhw/host_sigrt.h8
-rw-r--r--libhw/rp2040_hwtimer.c13
6 files changed, 132 insertions, 44 deletions
diff --git a/libhw/common_include/libhw/generic/alarmclock.h b/libhw/common_include/libhw/generic/alarmclock.h
index bf0d42f..a9d816b 100644
--- a/libhw/common_include/libhw/generic/alarmclock.h
+++ b/libhw/common_include/libhw/generic/alarmclock.h
@@ -87,7 +87,7 @@ static inline void alarmclock_sleep_for_s(implements_alarmclock *clock, uint64_t
/* Globals ********************************************************************/
-extern const implements_alarmclock *bootclock;
+extern implements_alarmclock *bootclock;
#define sleep_until_ns(t) alarmclock_sleep_until_ns(bootclock, t)
#define sleep_for_ns(t) alarmclock_sleep_for_ns(bootclock, t)
diff --git a/libhw/host_alarmclock.c b/libhw/host_alarmclock.c
index a89294c..26aca94 100644
--- a/libhw/host_alarmclock.c
+++ b/libhw/host_alarmclock.c
@@ -5,8 +5,12 @@
*/
#include <assert.h>
-#include <time.h> /* for clock_gettime(), CLOCK_MONOTONIC, clockid_t, struct timespec */
+#include <errno.h>
+#include <error.h>
+#include <signal.h>
+#include <time.h>
+#include <libcr/coroutine.h>
#include <libmisc/vcall.h>
#define IMPLEMENTATION_FOR_LIBHW_GENERIC_ALARMCLOCK_H YES
@@ -14,6 +18,8 @@
#include "host_sigrt.h"
+/* Types **********************************************************************/
+
struct hostclock {
implements_alarmclock;
bool initialized;
@@ -22,26 +28,53 @@ struct hostclock {
struct alarmclock_trigger *queue;
};
-static uint64_t hostclock_get_ns(implements_alarmclock *_alarmclock) {
+/* Globals ********************************************************************/
+
+static uint64_t hostclock_get_time_ns(implements_alarmclock *self);
+static bool hostclock_add_trigger(implements_alarmclock *self,
+ struct alarmclock_trigger *trigger,
+ uint64_t fire_at_ns,
+ void (*cb)(void *),
+ void *cb_arg);
+static void hostclock_del_trigger(implements_alarmclock *self,
+ struct alarmclock_trigger *trigger);
+
+static struct alarmclock_vtable hostclock_vtable = {
+ .get_time_ns = hostclock_get_time_ns,
+ .add_trigger = hostclock_add_trigger,
+ .del_trigger = hostclock_del_trigger,
+};
+
+static struct hostclock clock_monotonic = {
+ .vtable = &hostclock_vtable,
+ .clock_id = CLOCK_MONOTONIC,
+};
+
+implements_alarmclock *bootclock = &clock_monotonic;
+
+/* Main implementation ********************************************************/
+
+#define UNUSED(name) /* name __attribute__ ((unused)) */
+
+static uint64_t hostclock_get_time_ns(implements_alarmclock *_alarmclock) {
struct hostclock *alarmclock =
VCALL_SELF(struct hostclock, implements_alarmclock, _alarmclock);
assert(alarmclock);
struct timespec ts;
- int r;
- r = clock_gettime(alarmclock->clock_id, &ts);
- assert(r == 0);
+ if (clock_gettime(alarmclock->clock_id, &ts) != 0)
+ error(1, errno, "clock_gettime(%d)", (int)alarmclock->clock_id);
- return (((uint64_t)ts.tv_sec) * NS_PER_S) + (uint64_t)ts.tv_nsec;
+ return ns_from_host_ns_time(ts);
}
static void hostclock_handle_sig_alarm(int UNUSED(sig), siginfo_t *info, void *UNUSED(ucontext)) {
struct hostclock *alarmclock = info->si_value.sival_ptr;
- assert(alarmclock)
+ assert(alarmclock);
while (alarmclock->queue &&
- alarmclock->queue->fire_at_ns <= hostclock_get_ns(alarmclock)) {
+ alarmclock->queue->fire_at_ns <= hostclock_get_time_ns(alarmclock)) {
struct alarmclock_trigger *trigger = alarmclock->queue;
trigger->cb(trigger->cb_arg);
alarmclock->queue = trigger->next;
@@ -51,37 +84,91 @@ static void hostclock_handle_sig_alarm(int UNUSED(sig), siginfo_t *info, void *U
}
if (alarmclock->queue) {
- timer_settime(alarmclock
+ struct itimerspec alarmspec = {
+ .it_value = ns_to_host_ns_time(alarmclock->queue->fire_at_ns),
+ .it_interval = {0},
+ };
+ if (timer_settime(alarmclock->timer_id, TIMER_ABSTIME, &alarmspec, NULL) != 0)
+ error(1, errno, "timer_settime");
}
- timer_hw->alarm[alarm_num] = (uint32_t)NS_TO_US_ROUNDUP(alarmclock->queue->fire_at_ns);
}
-static bool hostclock_add_trigger(implements_alarmclock *self,
+static bool hostclock_add_trigger(implements_alarmclock *_alarmclock,
struct alarmclock_trigger *trigger,
uint64_t fire_at_ns,
void (*cb)(void *),
void *cb_arg) {
- struct hostclock *clock =
- VCALL_SELF(struct hostclock, implements_alarmclock, _clock);
-
+ struct hostclock *alarmclock =
+ VCALL_SELF(struct hostclock, implements_alarmclock, _alarmclock);
+ assert(alarmclock);
+ assert(trigger);
+ assert(fire_at_ns);
+ assert(cb);
+
+ trigger->alarmclock = alarmclock;
+ trigger->fire_at_ns = fire_at_ns;
+ trigger->cb = cb;
+ trigger->cb_arg = cb_arg;
+
+ cr_disable_interrupts();
+ struct alarmclock_trigger **dst = &alarmclock->queue;
+ while (*dst && fire_at_ns >= (*dst)->fire_at_ns)
+ dst = &(*dst)->next;
+ trigger->next = *dst;
+ trigger->prev = *dst ? (*dst)->prev : NULL;
+ if (*dst)
+ (*dst)->prev = trigger;
+ *dst = trigger;
+ if (!alarmclock->initialized) {
+ struct sigevent how_to_notify = {
+ .sigev_notify = SIGEV_SIGNAL,
+ .sigev_signo = host_sigrt_alloc(),
+ .sigev_value = {
+ .sival_ptr = alarmclock,
+ },
+ };
+ struct sigaction action = {
+ .sa_flags = SA_SIGINFO,
+ .sa_sigaction = hostclock_handle_sig_alarm,
+ };
+ if (sigaction(how_to_notify.sigev_signo, &action, NULL) != 0)
+ error(1, errno, "sigaction");
+ if (timer_create(alarmclock->clock_id, &how_to_notify, &alarmclock->timer_id) != 0)
+ error(1, errno, "timer_create(%d)", (int)alarmclock->clock_id);
+ alarmclock->initialized = true;
+ }
+ if (alarmclock->queue == trigger) {
+ struct itimerspec alarmspec = {
+ .it_value = ns_to_host_ns_time(trigger->fire_at_ns),
+ .it_interval = {0},
+ };
+ if (timer_settime(alarmclock->timer_id, TIMER_ABSTIME, &alarmspec, NULL) != 0)
+ error(1, errno, "timer_settime");
+ }
+ cr_enable_interrupts();
+ return false;
}
-static void hostclock_del_trigger(implements_alarmclock *self,
+static void hostclock_del_trigger(implements_alarmclock *_alarmclock,
struct alarmclock_trigger *trigger) {
-}
-
-/* Globals ********************************************************************/
-
-static struct alarmclock_vtable hostclock_vtable = {
- .get_time_ns = hostclock_get_time_ns,
- .add_trigger = hostclock_add_trigger,
- .del_trigger = hostclock_del_trigger,
-};
-
-static struct hostclock clock_monotonic = {
- .vtable = hostclock_vtable,
- .clockid = CLOCK_MONOTONIC,
-};
+ struct hostclock *alarmclock =
+ VCALL_SELF(struct hostclock, implements_alarmclock, _alarmclock);
-const implements_alarmclock *bootclock = &clock_monotonic;
+ assert(alarmclock);
+ assert(trigger);
+
+ cr_disable_interrupts();
+ if (trigger->alarmclock == alarmclock) {
+ if (!trigger->prev)
+ alarmclock->queue = trigger->next;
+ else
+ trigger->prev->next = trigger->next;
+ if (trigger->next)
+ trigger->next->prev = trigger->prev;
+ trigger->alarmclock = NULL;
+ trigger->prev = NULL;
+ trigger->next = NULL;
+ }
+ cr_enable_interrupts();
+}
diff --git a/libhw/host_net.c b/libhw/host_net.c
index 97e7726..9d1ffcf 100644
--- a/libhw/host_net.c
+++ b/libhw/host_net.c
@@ -235,7 +235,7 @@ static ssize_t hostnet_tcp_read(implements_net_stream_conn *_conn, void *buf, si
return -NET_ETIMEDOUT;
args.timeout = ns_to_host_us_time(conn->read_deadline_ns-now_ns);
} else {
- args.timeout = ns_to_host_us_time(0);
+ args.timeout = (host_us_time_t){0};
}
if (RUN_PTHREAD(hostnet_pthread_read, &args))
@@ -500,7 +500,7 @@ static ssize_t hostnet_udp_recvfrom(implements_net_packet_conn *_conn, void *buf
return -NET_ETIMEDOUT;
args.timeout = ns_to_host_us_time(conn->read_deadline_ns-now_ns);
} else {
- args.timeout = ns_to_host_us_time(0);
+ args.timeout = (host_us_time_t){0};
}
if (RUN_PTHREAD(hostnet_pthread_recvfrom, &args))
diff --git a/libhw/host_sigrt.c b/libhw/host_sigrt.c
index 66041fc..6dcb963 100644
--- a/libhw/host_sigrt.c
+++ b/libhw/host_sigrt.c
@@ -9,7 +9,7 @@
#include "host_sigrt.h"
-int host_alloc_sigrt(void) {
+int host_sigrt_alloc(void) {
static int next = 0;
if (!next)
diff --git a/libhw/host_sigrt.h b/libhw/host_sigrt.h
index fa5675b..e8be26a 100644
--- a/libhw/host_sigrt.h
+++ b/libhw/host_sigrt.h
@@ -35,13 +35,13 @@ static inline host_ns_time_t ns_to_host_ns_time(uint64_t time_ns) {
}
static inline uint64_t ns_from_host_us_time(host_us_time_t host_time) {
- return (((uint64_t)ts.tv_sec) * NS_PER_S) +
- ((uint64_t)ts.tv_nsec * (NS_PER_S/US_PER_S));
+ return (((uint64_t)host_time.tv_sec) * NS_PER_S) +
+ ((uint64_t)host_time.tv_usec * (NS_PER_S/US_PER_S));
}
static inline uint64_t ns_from_host_ns_time(host_ns_time_t host_time) {
- return (((uint64_t)ts.tv_sec) * NS_PER_S) +
- ((uint64_t)ts.tv_nsec);
+ return (((uint64_t)host_time.tv_sec) * NS_PER_S) +
+ ((uint64_t)host_time.tv_nsec);
}
#endif /* _LIBHW_HOST_SIGRT_H_ */
diff --git a/libhw/rp2040_hwtimer.c b/libhw/rp2040_hwtimer.c
index 6daa69d..54bdab3 100644
--- a/libhw/rp2040_hwtimer.c
+++ b/libhw/rp2040_hwtimer.c
@@ -16,7 +16,7 @@
#include <libhw/generic/alarmclock.h>
#include <libhw/rp2040_hwtimer.h>
-/* Init ***********************************************************************/
+/* Types **********************************************************************/
struct rp2040_hwtimer {
implements_alarmclock;
@@ -25,6 +25,8 @@ struct rp2040_hwtimer {
struct alarmclock_trigger *queue;
};
+/* Globals ********************************************************************/
+
static uint64_t rp2040_hwtimer_get_time_ns(implements_alarmclock *self);
static bool rp2040_hwtimer_add_trigger(implements_alarmclock *self,
struct alarmclock_trigger *trigger,
@@ -48,12 +50,15 @@ static struct rp2040_hwtimer hwtimers[] = {
};
static_assert(sizeof(hwtimers)/sizeof(hwtimers[0]) == _RP2040_HWALARM_NUM);
+implements_alarmclock *bootclock = &hwtimers[0];
+
+/* Main implementation ********************************************************/
+
implements_alarmclock *rp2040_hwtimer(enum rp2040_hwalarm_instance alarm_num) {
assert(alarm_num < _RP2040_HWALARM_NUM);
return &hwtimers[alarm_num];
}
-/* Main implementation ********************************************************/
static uint64_t rp2040_hwtimer_get_time_ns(implements_alarmclock *) {
return timer_time_us_64(timer_hw) * (NS_PER_S/US_PER_S);
@@ -159,7 +164,3 @@ static void rp2040_hwtimer_del_trigger(implements_alarmclock *_alarmclock,
}
cr_enable_interrupts();
}
-
-/* Globals ********************************************************************/
-
-const implements_alarmclock *bootclock = &hwtimers[0];
generated by cgit v1.2.3-2-g168b (git 2.25.1) at 2024-11-24 22:07:18 +0000