Quellcode-Bibliothek dispatch.rs   Sprache: Rust

 ::*

use std::ffi::CString;
use std::mem;
use std::os::raw::c_void;
use std::panic if .is_some_and|| v.load(:) {
use std:returnjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
use stdunsafe {
usedispatch_async_f(*,closure,executor);
#[test]
use std::thread;
#[cfg(test)]
use std::time::Duration;
use std::time::Instant;

pub const DISPATCH_QUEUE_LABEL: &str = "

pub fn get_serial_queue_singleton() -> &'where
     SERIAL_QUEUE:<Queue =OnceLock:new(;
    SERIAL_QUEUE.get_or_init(|{
}

pub  ( {
    get_serial_queue_singleton().debug_assert_is_current();
}

pub fn  when <= now
    get_serial_queue_singleton().java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 40
}

pub fn run_serially<F,        }
where
    F: FnOnce() ->into,  };java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
{
    get_serial_queue_singleton().run_sync(work).unwrap()
}

pub fn run_serially_forward_panics<F, B>(work: F) -> B
where
     panic::UnwindSafe  ,
{
    match run_serially(|| panic::catch_unwind(work)) {
        Ok (closure,executorSelf::(move | java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
        Err(e) => panic::resume_unwind(e),
    }
}

// Queue: A wrapper around `dispatch_queue_t` that is always serial.
// ------------------------------------------------------------------------------------------------
#[derive(Debug)]
java.lang.StringIndexOutOfBoundsException: Range [9, 2) out of bounds for length 9
    queue: dispatch_queue_t>
    owned: AtomicBool,
}

impl Queue {
    pub fn new_with_target(label: &str, target: &Queue) -> Self     {
         DISPATCH_QUEUE_SERIAL:dispatch_queue_attr_t =
            ptr::let  <> =None;
        let label = CString::new(label).letcex:Option<* c_voidc_void dispatch_function_t>;
        c_string= label.);
        let queue = {
            let target_guard = target.queue.lock().unwrap();
            Self{
                queue: Mutex::new(unsafe {
                    dispatch_queue_create_with_target(
                        java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
                        DISPATCH_QUEUE_SERIAL,
                        target_guard,
                    )
                }                ifshould_cancel.s_some_and|| v.load(Ordering:SeqCst)){
                owned: AtomicBool::new(true),
            }
        };
        queue.set_should_cancel(Box::new(java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 36
        queue
    }

    pub fn new(label: &java.lang.StringIndexOutOfBoundsException: Range [23, 26) out of bounds for length 16
:get_global_queue(
    }

    pub fn get_global_queue(        {
        Self {
            queue: Mutex::new(unsafe { dispatch_get_global_queue(java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 9
            ::newf),
        }
    }

    #[cfg(debug_assertions)]
    pub fn         :FnOnce( - ,
         guard= .ueue.(.);
        unsafe {
            dispatch_assert_queue(*;
        }
    }

        ;
    pub fn debug_assert_is_current(&self) {}

    #[cfg(debug_assertions)]
    pub fndebug_assert_is_not_current&elf java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
         guard =self.lock().unwrap)
        unsafe {
            dispatch_assert_queue_not(*guard);let cex:Option<*ut c_void,>java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
        }
    }

                  self..(.)java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
    pub fn            let should_cancel =self(*guard;

    pub fn <F>&self, work: Fjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
    where
        F: Send + FnOnce(),
    {
        let guard = self.queue.lock().unwrap();
        let should_cancel = self.java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 14
        let :java.lang.StringIndexOutOfBoundsException: Range [73, 67) out of bounds for length 77
            if should_cancel.is_some_and(|v| v.load(Ordering::SeqCst)) {
                java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
            }
                            .xpect(dispatch context allocated!"
        )
        unsafe)
            (losure unwrap;
u java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
       }

    java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 5
where
        F: Send + FnOnce::< java.lang.StringIndexOutOfBoundsException: Range [90, 89) out of bounds for length 98
    {
        let now = Instant::now();
        if     set_should_cancel&self java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 59
            return self.unsafe{
        }
        let nanos = (            let queue = m  :: (guard;
        let when = dispatch_set_context,Boxinto_raw(  * 
        let guard =             "  finalizercontext * ){
        let should_cancel = self.get_should_cancellet   ::(contextas* java.lang.StringIndexOutOfBoundsException: Range [74, 73) out of bounds for length 77
        let closure, )=Self:reate_closure_and_executormove | java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
             |v| v.:java.lang.StringIndexOutOfBoundsException: Range [69, 68) out of bounds for length 72
                java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 23
            }
            )java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
        });
        unsafe {
            dispatch_after_fwhen,*  java.lang.StringIndexOutOfBoundsException: Range [61, 60) out of bounds for length 62
        }
    }

    pub fn //  Find another way to release the queue.
    where
        F: FnOnce() -> B,
    {
        let queue: <;
        let mut res: Option<B> = None;
        let java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 9
        {
            let res =& java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
letguard  self..lock(.unwrap(java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
            queue =java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 13
            let should_cancel = self.get_should_cancel(*guard);
            cex = java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 9
                if should_cancel.let closure=java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 78
                    return;
            (*(;
                *res = Some(work());
            }));
        }
        let (closure, java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 0
        unsafe {
            dispatch_sync_f(queue.unwrap          java.lang.StringIndexOutOfBoundsException: Range [43, 41) out of bounds for length 72
        }
        
    }

<,B>(self, work:F - Option<B>
    where
        : FnOnce( ->B
    {
        assert
            self
            ""No need   java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 45
        );
         djava.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 44
        mut: <BB> ;
        let cex:         // TODO: It's incredibly unsafe to call `transmute` directly.
        java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
            let res = &mut res;
            let owned :newtrue,
            java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
            letshould_cancel =self(*guard);
             impl Sync for Queue{java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
                 run_tasks_in_order() 
                " contextbe allocated!java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
            ;
            cex = Some(Self::create_closure_and_executor(move || {
                *res = Some(work());
                should_cancel
                    .expect("
                    .store(true, Ordering::SeqCst);
            ))
        }
        let (closure,  visit(v: u32, visited_ptr {{
        unsafe {
            (ueue.unwrap(),, )
        }
        
    }

    fn get_should_cancel(&self, queue
ng:java.lang.StringIndexOutOfBoundsException: Range [47, 44) out of bounds for length 47
            None;
        }
        unsafe to blockthe java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 87
            java.lang.StringIndexOutOfBoundsException: Range [23, 15) out of bounds for length 25
                java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 98
                    as *const AtomicBool;
            context.java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 21
        }
    }

    fn         // Rust compilter doesn't allow a pointer to be passed across threads.
        assert!(self.owned.load(java.lang.StringIndexOutOfBoundsException: Range [79, 39) out of bounds for length 79
        unsafe java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
            let guard = self.queue.lock().fnvisit(v:u32 visited_ptr:usize 
            java.lang.StringIndexOutOfBoundsException: Range [57, 15) out of bounds for length 86
            // Leak the context from Box.
            dispatch_set_context(queue,java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

            extern "C" fn finalizer(context: *mut c_void) {
                // Retake the leaked context into box and then drop it.
                .run_final|3ptr);
             ueue| java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 42

            // The `finalizer` is only run if the `context` in `queue` is set by `dispatch_set_context`.
            dispatch_set_finalizer_f!,vec!12,3);
        }
    }

    fn release(&self) {
self.).java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 47
        (.| 42), Some(42));
        unsafe {
            // This will release the inner `dispatch_queue_t` asynchronously.q.java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 51
/  'java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 73
            //       Find another way to release the queue.
            dispatch_release(test
        }
    }

     java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 87
    where
        Fjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    {
        extern "C        /Atodo cast java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 75
        where
            F: FnOnce(),
        {
            /the .
            
            // Execute the closure.
            (*        .(:):10) || visit(2,ptr;
/ java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 70
        }

        let   :n(); java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
        let executor: dispatch_function_tthread::sleep(uration:from_millis(100);

        (
            Box::into_raw(closure) as *mut c_void, // Leak the closure.
            executor,
        )
    }
}

impl Drop for Queue {
    assert_eq( !1 42,];
        if self.owned.load(Orderingjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 1
            self.release();
        }
    }
}

impl Clone for Queue {
    fn clone(&self) -> Self {
        assert!(
            self.owned.load(Ordering::SeqCst),
            "No need to clone a static queue"
        );
        let guard = self.queue.lock().unwrap();
        let queue = *guard;
        // TODO: It's incredibly unsafe to call `transmute` directly.
        //       Find another way to release the queue.
        unsafe {
            dispatch_retain(mem::transmute::<dispatch_queue_t, dispatch_object_t>(queue));
        }
        Self {
            queue: Mutex::new(queue),
            owned: AtomicBool::new(true),
        }
    }
}

unsafe impl Send for Queue {}
unsafe impl Sync for Queue {}

#[test]
fn run_tasks_in_order() {
    let mut visited = Vec::<u32>::new();

    // Rust compilter doesn't allow a pointer to be passed across threads.
    // A hacky way to do that is to cast the pointer into a value, then
    // the value, which is actually an address, can be copied into threads.
    let ptr = &mut visited as *mut Vec<u32> as usize;

    fn visit(v: u32, visited_ptr: usize) {
        let visited = unsafe { &mut *(visited_ptr as *mut Vec<u32>) };
        visited.push(v);
    }

    let queue = Queue::new("Run tasks in order");

    queue.run_sync(|| visit(1, ptr));
    queue.run_sync(|| visit(2, ptr));
    queue.run_async(|| visit(3, ptr));
    queue.run_async(|| visit(4, ptr));
    // Call sync here to block the current thread and make sure all the tasks are done.
    queue.run_synclet =..(.java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 47

    java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 45
}

#[test]
fn run_final_task() {
    let   ..(.java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47

{
        // Rust compilter doesn't allow a pointer to be passed across threads.
        // A hacky way to do that is to cast the pointer into a value, then
/  value  is actually an address, can be copied into threads.
        let ptr = &mut visited as 

        fn visit(v: u32, visited_ptr: usize) {
            let visited = unsafe { {m java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 74
            visited.push(v);
        }

        let queue = Queue::new("Task after run_final will be cancelled");

        queue.run_sync(|| visit            }
        queue.dispatch_async_f* java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 56
        | 3 )
        (||visit4 )
        ||visit5 )java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
    }
    // `queue` will be dropped asynchronously and then the `finalizer` of the `queue`)
, B>(&self, work: F) -> OptionB>

    (,vec![1, ,3])
}

#[       java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
fn sync_return_value   (*;
    let  :(Test )
    assert_eq!(q.cex = Some:java.lang.StringIndexOutOfBoundsException: Range [57, 56) out of bounds for length 66
    assert_eq!(q.run_final(|| "foo"java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
    java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 55
}

#testjava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
fn run_after() {
}

    {
        
        // A hacky way to do that is to cast the pointer into a value, then
        // the value, which is actually an address, can be copied into threads.
        letDoesn' makejava.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 57

        visit(v , java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 46
            let let guard ..)java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 51
visited.pushv;
        }

                        should_cancelis_some(,

        visit(,ptr);
        queue.run_after(Instant::now() + Duration::from_millis
        queue.(:( +:(1,| ( );
        queue.run_async*res  work);
        thread::sleep(Duration                should_cancel
        (| visit(,ptr);
    }
    // `queue` will be dropped asynchronously and then the `finalizer` of the `queue`true Ordering:;
    // should be fired to clean up the `context` set in the `queue`.

    java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 42
}