for_each_concurrent”返回错误我想我找到了这个问题的解决方案。你需要在调用try_for_each_concurrent之前转换err类型。
) -> Result<(), io::Error> { use futures::stream::TryStreamExt; // for `try_for_each_concurrent` const MAX_CONCURRENT_JUMPERS: usize = 100; stream.try_for_each_concurrent(MAX_CONCURRENT_JUMPERS, |num| async move { jump_n_times(num).await?; report_n_jumps(num).await?; Ok(()...
for_each_concurrent”返回错误我想我找到了这个问题的解决方案。你需要在调用try_for_each_concurrent之前...
上面的使用的迭代处理,如果我们要并发的处理流,则应该使用for_each_concurrent和 try_for_each_concurrent,示例如下: async fn jump_around( mut stream: Pin<&mut dyn Stream<Item = Result<u8, io::Error>>>, ) -> Result<(), io::Error> { use futures::stream::...
( self, limit: impl Into<Option<usize>>, f: F, ) -> TryForEachConcurrent<Self, Fut, F> where F: FnMut(Self::Ok) -> Fut, Fut: Future<Output = Result<(), Self::Error>>, Self: Sized, { TryForEachConcurrent::new(self, limit.into(), f) } /// 尝试将流转换为集合,返回表示...
#[async_std::main]asyncfnmain(){letlistener=TcpListener::bind("127.0.0.1:7878").unwrap();forstreaminlistener.incoming(){letstream=stream.unwrap();handle_connection(stream).await;}} 我们来稍微看下async_std::main这个属性宏的核心源码
这里的工作为探索 Rust 中大范围的无锁数据结构奠定了基础,我希望 Crossbeam 最终发挥类似于 java.util.concurrent for Rust 的作用——包括无锁 hashmap、窃取工作的 deques 和轻量级任务引擎。如果你对这项工作感兴趣,我很乐意帮忙! 我的一些心得 我在尝试编写lock-free stack的初期,并没有接触crossbeam,只是在...
Each specific ABI can also be used from either environment (for example, using the GNU ABI in PowerShell) by using an explicit build triple. The available Windows build triples are:GNU ABI (using GCC) i686-pc-windows-gnu x86_64-pc-windows-gnu The MSVC ABI i686-pc-windows-msvc x86_...
Rust is known for its memory safety and zero-cost abstractions, which make it a good choice for building high-performance, reliable, and secure software. It’s particularly well-suited for system programming, web development, and embedded systems. ...
This identifier is accessible throughThread::id()and is of the typeThreadId. There’s not much you can do with aThreadIdother than copying it around and checking for equality. There is no guarantee that these IDs will be assigned consecutively, only that they will be different for each ...