2 files changed, 29 insertions, 0 deletions
diff --git a/vendor/open-telemetry/context/fiber/initialize_fiber_handler.php b/vendor/open-telemetry/context/fiber/initialize_fiber_handler.php
new file mode 100644
index 000000000..b9c706395
--- /dev/null
+++ b/vendor/open-telemetry/context/fiber/initialize_fiber_handler.php
@@ -0,0 +1,20 @@
+<?php
+
+/** @noinspection PhpElementIsNotAvailableInCurrentPhpVersionInspection */
+/** @phan-file-suppress PhanUndeclaredClassReference */
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\Context;
+
+use Fiber;
+
+if (!class_exists(Fiber::class)) {
+    return;
+}
+
+if (ZendObserverFiber::isEnabled() && ZendObserverFiber::init()) {
+    // ffi fiber support enabled
+} else {
+    Context::setStorage(new FiberBoundContextStorage(Context::storage()));
+}
diff --git a/vendor/open-telemetry/context/fiber/zend_observer_fiber.h b/vendor/open-telemetry/context/fiber/zend_observer_fiber.h
new file mode 100644
index 000000000..6a8e4e98d
--- /dev/null
+++ b/vendor/open-telemetry/context/fiber/zend_observer_fiber.h
@@ -0,0 +1,9 @@
+#define FFI_SCOPE "OTEL_ZEND_OBSERVER_FIBER"
+
+typedef void (*zend_observer_fiber_init_handler)(intptr_t initializing);
+typedef void (*zend_observer_fiber_switch_handler)(intptr_t from, intptr_t to);
+typedef void (*zend_observer_fiber_destroy_handler)(intptr_t destroying);
+
+void zend_observer_fiber_init_register(zend_observer_fiber_init_handler handler);
+void zend_observer_fiber_switch_register(zend_observer_fiber_switch_handler handler);
+void zend_observer_fiber_destroy_register(zend_observer_fiber_destroy_handler handler);