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Add ConnectionPool HTTP1StateMachine (#416)

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This commit is contained in:
Fabian Fett
2021-09-09 15:34:03 +02:00
committed by GitHub
parent 05e570dd87
commit 4d726bad8d
12 changed files with 1480 additions and 31 deletions
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Sources/AsyncHTTPClient/ConnectionPool/State Machine/HTTPConnectionPool+HTTP1Connections.swift
+10 -22
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@@ -375,6 +375,11 @@ extension HTTPConnectionPool {
self.connections[index].lease()
}
func parkConnection(at index: Int) -> (Connection.ID, EventLoop) {
precondition(self.connections[index].isIdle)
return (self.connections[index].connectionID, self.connections[index].eventLoop)
}
/// A new HTTP/1.1 connection was released.
///
/// This will put the position into the idle state.
@@ -446,12 +451,13 @@ extension HTTPConnectionPool {
/// This will put the position into the closed state.
///
/// - Parameter connectionID: The failed connection's id.
/// - Returns: An index and an IdleConnectionContext to determine the next action for the now closed connection.
/// - Returns: An optional index and an IdleConnectionContext to determine the next action for the closed connection.
/// You must call ``removeConnection(at:)`` or ``replaceConnection(at:)`` with the
/// supplied index after this.
mutating func failConnection(_ connectionID: Connection.ID) -> (Int, FailedConnectionContext) {
/// supplied index after this. If nil is returned the connection was closed by the state machine and was
/// therefore already removed.
mutating func failConnection(_ connectionID: Connection.ID) -> (Int, FailedConnectionContext)? {
guard let index = self.connections.firstIndex(where: { $0.connectionID == connectionID }) else {
preconditionFailure("We tried to fail a new connection that we know nothing about?")
return nil
}
let use: ConnectionUse
@@ -607,22 +613,4 @@ extension HTTPConnectionPool {
var connecting: Int = 0
var backingOff: Int = 0
}
/// The pool cleanup todo list.
struct CleanupContext: Equatable {
/// the connections to close right away. These are idle.
var close: [Connection]
/// the connections that currently run a request that needs to be cancelled to close the connections
var cancel: [Connection]
/// the connections that are backing off from connection creation
var connectBackoff: [Connection.ID]
init(close: [Connection] = [], cancel: [Connection] = [], connectBackoff: [Connection.ID] = []) {
self.close = close
self.cancel = cancel
self.connectBackoff = connectBackoff
}
}
}