78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
#include <fc/json_rpc_stream_connection.hpp>
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#include <fc/iostream.hpp>
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#include <fc/thread.hpp>
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namespace fc { namespace json {
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class rpc_stream_connection::impl : public fc::retainable {
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public:
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fc::istream& in;
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fc::ostream& out;
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rpc_stream_connection& self;
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fc::function<void> on_close;
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impl( fc::istream& i, fc::ostream& o, rpc_stream_connection& s )
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:in(i),out(o),self(s){
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_read_loop_complete = fc::async( [=](){ read_loop(); } );
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}
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~impl() {
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try {
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self.cancel_pending_requests();
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_read_loop_complete.cancel();
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_read_loop_complete.wait();
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} catch ( ... ) {}
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}
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fc::future<void> _read_loop_complete;
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void read_loop() {
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fc::string line;
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fc::getline( in, line );
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while( !in.eof() ) {
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try {
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fc::value v= fc::json::from_string( line );
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} catch (...) {
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wlog( "%s", fc::except_str().c_str() );
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}
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fc::getline( in, line );
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}
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self.cancel_pending_requests();
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if( !!on_close ) on_close();
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}
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};
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rpc_stream_connection::rpc_stream_connection( fc::istream& i, fc::ostream& o )
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:my( new impl(i,o,*this) ){
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}
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// the life of the streams must exceed the life of all copies
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// of this rpc_stream_connection
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void rpc_stream_connection::open( fc::istream& i, fc::ostream& o) {
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my.reset( new impl(i,o,*this) );
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}
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// cancels all pending requests, closes the ostream
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// results on_close() being called if the stream is not already closed.
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void rpc_stream_connection::close() {
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my->out.close();
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}
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/**
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* When the connection is closed, call the given method
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*/
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void rpc_stream_connection::on_close( const fc::function<void>& oc ) {
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my->on_close = oc;
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}
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void rpc_stream_connection::send_invoke( uint64_t id, const fc::string& m, value&& param ) {
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}
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void rpc_stream_connection::send_error( uint64_t id, int64_t code, const fc::string& msg ) {
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}
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void rpc_stream_connection::send_result( uint64_t id, value&& r ) {
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}
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} } // fc::json
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