Boost Asio SSL can't receive without sending
Hi, I am using Boost Asio to developed a server, with SSL support. I add async_read_some() function in handshake handler and send handler. Which receiving is OK if I send something to clients, but I can't keep receiving after I stop sending things to client. So I am wondering how can I keep receiving, I know there must be a way to make it, I am new to Asio, can someone help, thanks in advance. ------------------ I won't go
Are you calling run( ) on the ioservice ( boost::asio::io_service ) ? Radu From: Boost-users [mailto:boost-users-bounces@lists.boost.org] On Behalf Of ??? Sent: 19 August 2016 07:57 To: boost-users <boost-users@lists.boost.org> Subject: [Boost-users] Boost Asio SSL can't receive without sending Hi, I am using Boost Asio to developed a server, with SSL support. I add async_read_some() function in handshake handler and send handler. Which receiving is OK if I send something to clients, but I can't keep receiving after I stop sending things to client. So I am wondering how can I keep receiving, I know there must be a way to make it, I am new to Asio, can someone help, thanks in advance. ------------------ I won't go
A. did you forget to have an async_read_some active? B. did your io_service stop because you forgot to give it asio::io_service::work? C. did you call shutdown() or close() on the underlying protocol? D. What is the exact error_code.value(), .category() and .message()? once io_service::run() returns, the io_service will be in the stopped() state. This happens when there are no remaining async operations waiting to complete on it. In a multi-threaded environment you must keep the io_service running by creating an io_service::work object against it. Then when you want to stop your communications loop, you would call op_service::stop() and join the threads. Can you post a minimal complete example somewhere which demonstrates the problem? R On 19 August 2016 at 08:57, 刘焕杰 <jenenliu@foxmail.com> wrote:
Hi, I am using Boost Asio to developed a server, with SSL support. I add async_read_some() function in handshake handler and send handler. Which receiving is OK if I send something to clients, but I can't keep receiving after I stop sending things to client. So I am wondering how can I keep receiving, I know there must be a way to make it, I am new to Asio, can someone help, thanks in advance.
------------------ I won't go
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On 23/08/2016 01:52, Richard Hodges wrote:
once io_service::run() returns, the io_service will be in the stopped() state. This happens when there are no remaining async operations waiting to complete on it. In a multi-threaded environment you must keep the io_service running by creating an io_service::work object against it. Then when you want to stop your communications loop, you would call op_service::stop() and join the threads.
Actually that's not strictly true. As long as any operation or handler is pending, the io_service won't stop on its own. So if you ensure that your async_read handler always starts another async_read (and if the socket disconnects you immediately reconnect it), then you don't need io_service::work; you only need that if there can be "dead times" when no async operation is pending. It's usually simpler to use it than not to, though.
it works ! thanks a lot. ------------------ Original ------------------ From: "Gavin Lambert";<gavinl@compacsort.com>; Date: Tue, Aug 23, 2016 07:45 AM To: "boost-users"<boost-users@lists.boost.org>; Subject: Re: [Boost-users] Boost Asio SSL can't receive without sending On 23/08/2016 01:52, Richard Hodges wrote:
once io_service::run() returns, the io_service will be in the stopped() state. This happens when there are no remaining async operations waiting to complete on it. In a multi-threaded environment you must keep the io_service running by creating an io_service::work object against it. Then when you want to stop your communications loop, you would call op_service::stop() and join the threads.
Actually that's not strictly true. As long as any operation or handler is pending, the io_service won't stop on its own. So if you ensure that your async_read handler always starts another async_read (and if the socket disconnects you immediately reconnect it), then you don't need io_service::work; you only need that if there can be "dead times" when no async operation is pending. It's usually simpler to use it than not to, though. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users
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刘焕杰