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8b4ed6655a
zephyr/kernel
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Andy Ross 8b4ed6655a kernel: Clamp k_sleep() return value on overflow 
k_sleep() returns a 32 bit count of milliseconds, as that was its
historical API.  But it now accepts a potentially 64 bit tick count as
an argument, leading to situations where an early wakeup will produce
sleep times that aren't representable.  Clamp this instead of
truncating to an arbitrary value.

Naive code will likely do the right thing with the large return (just
sleeping an extra round), and sophisticated apps can detect INT_MAX to
enable more elaborate retry logic.

(Also fixes a somewhat unfortunate puncutation error in the docs that
implied that it returns zero on early wakeup!)

Fixes: #84669

Signed-off-by: Andy Ross <andyross@google.com>
2025-03-07 20:20:25 +01:00
..
include kernel: Change z_handle_obj_poll_events() return type 2025-02-03 19:51:20 +01:00
paging
atomic_c.c
banner.c
busy_wait.c
CMakeLists.txt kernel: Rewrite k_pipe_* API 2025-01-17 19:43:44 +01:00
compiler_stack_protect.c security: Add default stack protection level 2024-12-20 12:37:20 +01:00
condvar.c kernel: condvar: broadcast does not always need reschedule 2025-02-03 19:51:20 +01:00
cpu_mask.c kernel: Simplify k_thread_cpu_pin() 2024-09-20 09:02:38 +02:00
device.c device: Optimize device_get_binding search efficiency 2024-11-27 08:18:30 +01:00
dynamic_disabled.c
dynamic.c kernel: dynamic: simplify dynamic stack allocation 2024-12-11 21:33:00 +01:00
errno.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
events.c
fatal.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
float.c
futex.c kernel: futex: Allow for fast return on k_futex_wake() 2025-02-03 19:51:20 +01:00
idle.c llext: export spinlock debugging symbols to extensions 2025-02-11 10:11:31 +01:00
init_static.c
init.c security: Additional option for stack canaries 2024-12-20 12:37:20 +01:00
ipi.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
irq_offload.c
Kconfig kernel: thread: fix thread priority off-by-one error 2025-02-16 13:27:03 +01:00
Kconfig.device libc: common: Fix init hang issue 2024-06-26 13:07:02 -04:00
Kconfig.init init: support per-core init hook 2024-11-16 14:04:25 -05:00
Kconfig.mem_domain kconfig: replace known integer constants with variables 2024-07-27 20:49:15 +03:00
Kconfig.obj_core kernel: Rewrite k_pipe_* API 2025-01-17 19:43:44 +01:00
Kconfig.smp kernel: remove CONFIG_MP_NUM_CPUS 2024-09-19 18:28:37 +01:00
Kconfig.vm arch: mmu: do not make MMU user configurable 2025-02-19 04:59:19 +01:00
kheap.c kernel: Initialize kheap spinlock 2025-02-04 09:19:09 +01:00
mailbox.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
main_weak.c
mem_domain.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
mem_slab.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
mempool.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
mmu.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
msg_q.c kernel: msgq: Allow for fast returns 2025-02-03 19:51:20 +01:00
mutex.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
nothread.c kernel: fix k_sleep in no multi-threading mode 2024-11-16 14:07:41 -05:00
obj_core.c kernel: reduce k_spin_unlock calls using if-else if-else structure 2024-07-27 20:48:07 +03:00
pipe.c k_pipe: fix trace point for blocking writes 2025-01-28 14:13:14 +01:00
pipes.c kernel: Propagate z_handle_obj_poll_events() return 2025-02-03 19:51:20 +01:00
poll.c kernel: Change z_handle_obj_poll_events() return type 2025-02-03 19:51:20 +01:00
priority_queues.c
queue.c kernel: queue: Allow for fast return 2025-02-03 19:51:20 +01:00
sched.c kernel: Clamp k_sleep() return value on overflow 2025-03-07 20:20:25 +01:00
sem.c kernel: Allow for fast return on k_sem_reset() 2025-02-03 19:51:20 +01:00
smp.c kernel: mark z_smp_current_get() with the const attribute 2025-01-10 07:49:08 +01:00
spinlock_validate.c llext: export spinlock debugging symbols to extensions 2025-02-11 10:11:31 +01:00
stack.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
system_work_q.c
thread_monitor.c style: kernel: comply with MISRA C:2012 Rule 15.6 2024-09-11 07:40:35 -04:00
thread.c kernel: thread: fix warning of always false 2025-02-10 22:25:32 +01:00
timeout.c kernel: Add timeout_lock usage notes 2025-01-28 18:14:22 +01:00
timer.c
timeslicing.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
usage.c
userspace_handler.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
userspace.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
version.c
work.c Revert "arch: deprecate _current" 2025-01-10 07:49:08 +01:00
xip.c soc: stm32: handle CCM in LINKER_GENERATOR 2025-03-07 19:54:24 +01:00