Class: AliyunSDK::OSS::HTTP::StreamWriter
- Inherits:
-
Object
- Object
- AliyunSDK::OSS::HTTP::StreamWriter
- Defined in:
- lib/aliyun_sdk/oss/http.rb
Overview
A stream implementation A stream is any class that responds to :read(bytes, outbuf)
Instance Method Summary collapse
- #closed? ⇒ Boolean
-
#initialize ⇒ StreamWriter
constructor
A new instance of StreamWriter.
- #inspect ⇒ Object
- #read(bytes = nil, outbuf = nil) ⇒ Object
- #write(chunk) ⇒ Object (also: #<<)
Constructor Details
#initialize ⇒ StreamWriter
Returns a new instance of StreamWriter.
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# File 'lib/aliyun_sdk/oss/http.rb', line 46 def initialize @buffer = "" @producer = Fiber.new { yield self if block_given? } @producer.resume end |
Instance Method Details
#closed? ⇒ Boolean
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# File 'lib/aliyun_sdk/oss/http.rb', line 98 def closed? false end |
#inspect ⇒ Object
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# File 'lib/aliyun_sdk/oss/http.rb', line 102 def inspect "@buffer: " + @buffer[0, 32].inspect + "...#{@buffer.size} bytes" end |
#read(bytes = nil, outbuf = nil) ⇒ Object
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# File 'lib/aliyun_sdk/oss/http.rb', line 52 def read(bytes = nil, outbuf = nil) ret = "" loop do if bytes fail if bytes < 0 piece = @buffer.slice!(0, bytes) if piece ret << piece bytes -= piece.size break if bytes == 0 end else ret << @buffer @buffer.clear end if @producer.alive? @producer.resume else break end end if outbuf # WARNING: Using outbuf = '' here DOES NOT work! outbuf.clear outbuf << ret end # Conform to IO#read(length[, outbuf]): # At end of file, it returns nil or "" depend on # length. ios.read() and ios.read(nil) returns # "". ios.read(positive-integer) returns nil. return nil if ret.empty? && !bytes.nil? && bytes > 0 ret end |
#write(chunk) ⇒ Object Also known as: <<
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# File 'lib/aliyun_sdk/oss/http.rb', line 90 def write(chunk) @buffer << chunk.to_s.force_encoding(Encoding::ASCII_8BIT) Fiber.yield self end |