End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

Thread.fork

Thread.start([args]*) {|args| block } → thread

Thread.fork([args]*) {|args| block } → thread

static VALUE
thread_start(VALUE klass, VALUE args)
{
    struct thread_create_params params = {
        .type = thread_invoke_type_proc,
        .args = args,
        .proc = rb_block_proc(),
    };
    return thread_create_core(rb_thread_alloc(klass), &params);
}

Basically the same as ::new. However, if class Thread is subclassed, then calling start in that subclass will not invoke the subclass’s initialize method.

See also .exit .handle_interrupt .DEBUG= .ignore_deadlock also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0

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