Methods
Public Class
Public Instance
Classes and Modules
Constants
| MAX_CONCURRENT_REQUESTS | = | ::HTTP2::DEFAULT_MAX_CONCURRENT_STREAMS |
Public Instance Aliases
| reset | -> | init_connection |
Public Class methods
new(buffer, options)
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# File lib/httpx/connection/http2.rb 33 def initialize(buffer, options) 34 @options = options 35 @settings = @options.http2_settings 36 @pending = [] 37 @streams = {} 38 @drains = {} 39 @pings = [] 40 @buffer = buffer 41 @handshake_completed = false 42 @wait_for_handshake = @settings.key?(:wait_for_handshake) ? @settings.delete(:wait_for_handshake) : true 43 @max_concurrent_requests = @options.max_concurrent_requests || MAX_CONCURRENT_REQUESTS 44 @max_requests = @options.max_requests 45 init_connection 46 end
Public Instance methods
<<(data)
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# File lib/httpx/connection/http2.rb 111 def <<(data) 112 @connection << data 113 end
close()
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# File lib/httpx/connection/http2.rb 95 def close 96 unless @connection.state == :closed 97 @connection.goaway 98 emit(:timeout, @options.timeout[:close_handshake_timeout]) 99 end 100 emit(:close) 101 end
consume()
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# File lib/httpx/connection/http2.rb 133 def consume 134 @streams.each do |request, stream| 135 next unless request.can_buffer? 136 137 handle(request, stream) 138 end 139 end
empty?()
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# File lib/httpx/connection/http2.rb 103 def empty? 104 @connection.state == :closed || @streams.empty? 105 end
exhausted?()
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# File lib/httpx/connection/http2.rb 107 def exhausted? 108 !@max_requests.positive? 109 end
handle_error(ex, request = nil)
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# File lib/httpx/connection/http2.rb 141 def handle_error(ex, request = nil) 142 if ex.is_a?(OperationTimeoutError) && !@handshake_completed && @connection.state != :closed 143 @connection.goaway(:settings_timeout, "closing due to settings timeout") 144 emit(:close_handshake) 145 settings_ex = SettingsTimeoutError.new(ex.timeout, ex.message) 146 settings_ex.set_backtrace(ex.backtrace) 147 ex = settings_ex 148 end 149 while (req, _ = @streams.shift) 150 next if request && request == req 151 152 emit(:error, req, ex) 153 end 154 while (req = @pending.shift) 155 next if request && request == req 156 157 emit(:error, req, ex) 158 end 159 end
interests()
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# File lib/httpx/connection/http2.rb 54 def interests 55 if @connection.state == :closed 56 return unless @handshake_completed 57 58 return if @buffer.empty? 59 60 # HTTP/2 GOAWAY frame buffered. 61 return :w 62 end 63 64 unless @connection.state == :connected && @handshake_completed 65 # HTTP/2 in intermediate state or still completing initialization- 66 return @buffer.empty? ? :r : :rw 67 end 68 69 unless @connection.send_buffer.empty? 70 # HTTP/2 connection is buffering data chunks and failing to emit DATA frames, 71 # most likely because the flow control window is exhausted. 72 return :rw unless @buffer.empty? 73 74 # waiting for WINDOW_UPDATE frames 75 return :r 76 end 77 78 # there are pending bufferable requests 79 return :w if !@pending.empty? && can_buffer_more_requests? 80 81 # there are pending frames from the last run 82 return :w unless @drains.empty? 83 84 if @buffer.empty? 85 # skip if no more requests or pings to process 86 return if @streams.empty? && @pings.empty? 87 88 :r 89 else 90 # buffered frames 91 :w 92 end 93 end
ping()
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# File lib/httpx/connection/http2.rb 161 def ping 162 ping = SecureRandom.gen_random(8) 163 @connection.ping(ping.dup) 164 ensure 165 @pings << ping 166 end
send(request, head = false)
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# File lib/httpx/connection/http2.rb 115 def send(request, head = false) 116 unless can_buffer_more_requests? 117 head ? @pending.unshift(request) : @pending << request 118 return false 119 end 120 unless (stream = @streams[request]) 121 stream = @connection.new_stream 122 handle_stream(stream, request) 123 @streams[request] = stream 124 @max_requests -= 1 125 end 126 handle(request, stream) 127 true 128 rescue ::HTTP2::Error::StreamLimitExceeded 129 @pending.unshift(request) 130 false 131 end
timeout()
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# File lib/httpx/connection/http2.rb 48 def timeout 49 return @options.timeout[:operation_timeout] if @handshake_completed 50 51 @options.timeout[:settings_timeout] 52 end
waiting_for_ping?()
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# File lib/httpx/connection/http2.rb 168 def waiting_for_ping? 169 @pings.any? 170 end