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mruby-task: add usleep method

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Add usleep method that provides task-aware sleep behavior with
microsecond precision. This overrides mruby-sleep's usleep when both
gems are loaded.

The implementation converts microseconds to milliseconds and uses the
same sleep_ms_impl as sleep_ms, providing cooperative sleep within
tasks and signal-safe blocking sleep otherwise.

Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Yukihiro "Matz" Matsumoto
2025-10-06 07:42:59 +09:00
parent c7e0312c65
commit ef4a14996a
1 changed files with 21 additions and 2 deletions
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mrbgems/mruby-task/src/task.c
+21 -2
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@@ -445,6 +445,24 @@ mrb_f_sleep_ms(mrb_state *mrb, mrb_value self)
return mrb_nil_value();
}
static mrb_value
mrb_f_usleep(mrb_state *mrb, mrb_value self)
{
mrb_int usec;
mrb_get_args(mrb, "i", &usec);
if (usec < 0) {
mrb_raise(mrb, E_ARGUMENT_ERROR, "time interval must be positive");
}
/* Convert microseconds to milliseconds */
mrb_int ms = usec / 1000;
sleep_ms_impl(mrb, ms);
return mrb_fixnum_value(usec);
}
/*
* HAL POSIX implementation
*/
@@ -1003,11 +1021,12 @@ mrb_mruby_task_gem_init(mrb_state *mrb)
mrb_define_method(mrb, task_class, "join", mrb_task_join, MRB_ARGS_NONE());
/* Kernel methods
* Note: sleep overrides mruby-sleep's implementation to be task-aware
* Note: sleep and usleep override mruby-sleep's implementation to be task-aware
* (cooperative sleep within tasks, blocking sleep otherwise)
*/
mrb_define_private_method_id(mrb, mrb->kernel_module, MRB_SYM(sleep), mrb_f_sleep, MRB_ARGS_OPT(1));
mrb_define_method(mrb, mrb->kernel_module, "sleep_ms", mrb_f_sleep_ms, MRB_ARGS_REQ(1));
mrb_define_private_method_id(mrb, mrb->kernel_module, MRB_SYM(usleep), mrb_f_usleep, MRB_ARGS_REQ(1));
mrb_define_private_method_id(mrb, mrb->kernel_module, MRB_SYM(sleep_ms), mrb_f_sleep_ms, MRB_ARGS_REQ(1));
}
void