From cdd7ad020e165fe680703b6d3319b908b682fb7a Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@fakecake.org>
Date: Fri, 20 Oct 2023 17:12:29 +0300
Subject: jaeger-client -> opentelemetry

---
 vendor/guzzlehttp/guzzle/src/RetryMiddleware.php | 119 +++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 vendor/guzzlehttp/guzzle/src/RetryMiddleware.php

(limited to 'vendor/guzzlehttp/guzzle/src/RetryMiddleware.php')

diff --git a/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php b/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php
new file mode 100644
index 000000000..8f4d93ac4
--- /dev/null
+++ b/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php
@@ -0,0 +1,119 @@
+<?php
+
+namespace GuzzleHttp;
+
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Middleware that retries requests based on the boolean result of
+ * invoking the provided "decider" function.
+ *
+ * @final
+ */
+class RetryMiddleware
+{
+    /**
+     * @var callable(RequestInterface, array): PromiseInterface
+     */
+    private $nextHandler;
+
+    /**
+     * @var callable
+     */
+    private $decider;
+
+    /**
+     * @var callable(int)
+     */
+    private $delay;
+
+    /**
+     * @param callable                                            $decider     Function that accepts the number of retries,
+     *                                                                         a request, [response], and [exception] and
+     *                                                                         returns true if the request is to be
+     *                                                                         retried.
+     * @param callable(RequestInterface, array): PromiseInterface $nextHandler Next handler to invoke.
+     * @param (callable(int): int)|null                           $delay       Function that accepts the number of retries
+     *                                                                         and returns the number of
+     *                                                                         milliseconds to delay.
+     */
+    public function __construct(callable $decider, callable $nextHandler, callable $delay = null)
+    {
+        $this->decider = $decider;
+        $this->nextHandler = $nextHandler;
+        $this->delay = $delay ?: __CLASS__.'::exponentialDelay';
+    }
+
+    /**
+     * Default exponential backoff delay function.
+     *
+     * @return int milliseconds.
+     */
+    public static function exponentialDelay(int $retries): int
+    {
+        return (int) 2 ** ($retries - 1) * 1000;
+    }
+
+    public function __invoke(RequestInterface $request, array $options): PromiseInterface
+    {
+        if (!isset($options['retries'])) {
+            $options['retries'] = 0;
+        }
+
+        $fn = $this->nextHandler;
+
+        return $fn($request, $options)
+            ->then(
+                $this->onFulfilled($request, $options),
+                $this->onRejected($request, $options)
+            );
+    }
+
+    /**
+     * Execute fulfilled closure
+     */
+    private function onFulfilled(RequestInterface $request, array $options): callable
+    {
+        return function ($value) use ($request, $options) {
+            if (!($this->decider)(
+                $options['retries'],
+                $request,
+                $value,
+                null
+            )) {
+                return $value;
+            }
+
+            return $this->doRetry($request, $options, $value);
+        };
+    }
+
+    /**
+     * Execute rejected closure
+     */
+    private function onRejected(RequestInterface $req, array $options): callable
+    {
+        return function ($reason) use ($req, $options) {
+            if (!($this->decider)(
+                $options['retries'],
+                $req,
+                null,
+                $reason
+            )) {
+                return P\Create::rejectionFor($reason);
+            }
+
+            return $this->doRetry($req, $options);
+        };
+    }
+
+    private function doRetry(RequestInterface $request, array $options, ResponseInterface $response = null): PromiseInterface
+    {
+        $options['delay'] = ($this->delay)(++$options['retries'], $response, $request);
+
+        return $this($request, $options);
+    }
+}
-- 
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