Class: Async::HTTP::Protocol::HTTP1::Server
- Inherits:
-
Connection
- Object
- Protocol::HTTP1::Connection
- Connection
- Async::HTTP::Protocol::HTTP1::Server
- Defined in:
- lib/async/http/protocol/http1/server.rb
Instance Attribute Summary
Attributes inherited from Connection
Instance Method Summary collapse
-
#each(task: Task.current) ⇒ Object
Server loop.
- #fail_request(status) ⇒ Object
- #next_request ⇒ Object
Methods inherited from Connection
#concurrency, #http1?, #http2?, #initialize, #peer, #read_line, #read_line?, #reusable?, #viable?
Constructor Details
This class inherits a constructor from Async::HTTP::Protocol::HTTP1::Connection
Instance Method Details
#each(task: Task.current) ⇒ Object
Server loop.
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# File 'lib/async/http/protocol/http1/server.rb', line 58 def each(task: Task.current) task.annotate("Reading #{self.version} requests for #{self.class}.") while request = next_request response = yield(request, self) body = response&.body if @stream.nil? and body.nil? # Full hijack. return end begin # If a response was generated, send it: if response trailer = response.headers.trailer! write_response(@version, response.status, response.headers) # Some operations in this method are long running, that is, it's expected that `body.call(stream)` could literally run indefinitely. In order to facilitate garbage collection, we want to nullify as many local variables before calling the streaming body. This ensures that the garbage collection can clean up as much state as possible during the long running operation, so we don't retain objects that are no longer needed. if body and protocol = response.protocol stream = write_upgrade_body(protocol) # At this point, the request body is hijacked, so we don't want to call #finish below. request = response = nil body.call(stream) elsif request.connect? and response.success? stream = write_tunnel_body(request.version) # Same as above: request = response = nil body.call(stream) else head = request.head? version = request.version # Same as above: request = nil unless body response = nil write_body(version, body, head, trailer) end # We are done with the body, you shouldn't need to call close on it: body = nil else # If the request failed to generate a response, it was an internal server error: write_response(@version, 500, {}) write_body(request.version, nil) end # Gracefully finish reading the request body if it was not already done so. request&.finish # This ensures we yield at least once every iteration of the loop and allow other fibers to execute. task.yield rescue => error raise ensure body&.close(error) end end end |
#fail_request(status) ⇒ Object
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# File 'lib/async/http/protocol/http1/server.rb', line 30 def fail_request(status) @persistent = false write_response(@version, status, {}, nil) end |
#next_request ⇒ Object
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# File 'lib/async/http/protocol/http1/server.rb', line 35 def next_request # The default is true. return unless @persistent # Read an incoming request: return unless request = Request.read(self) unless persistent?(request.version, request.method, request.headers) @persistent = false end return request rescue Async::TimeoutError # For an interesting discussion about this behaviour, see https://trac.nginx.org/nginx/ticket/1005 # If you enable this, you will see some spec failures... # fail_request(408) raise rescue fail_request(400) raise end |