Function pthread_create

#[no_mangle]
pub unsafe extern "C" fn pthread_create(
    res: *mut pthread_t,
    attr: *const pthread_attr_t,
    start_routine: extern "C" fn(arg: *mut c_void) -> *mut c_void,
    arg: *mut c_void,
) -> c_int

Available on crate feature multitask only.

Create a new thread with the given entry point and argument.

If successful, it stores the pointer to the newly created struct __pthread in res and returns 0.