Adding upstream version 1.52.0.upstream/1.52.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 66 insertions, 0 deletions

diff --git a/src/shrpx_io_control.cc b/src/shrpx_io_control.cc
new file mode 100644
index 0000000..f43a257
--- /dev/null
+++ b/src/shrpx_io_control.cc
@@ -0,0 +1,66 @@
+/*
+ * nghttp2 - HTTP/2 C Library
+ *
+ * Copyright (c) 2012 Tatsuhiro Tsujikawa
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "shrpx_io_control.h"
+
+#include <algorithm>
+
+#include "shrpx_rate_limit.h"
+#include "util.h"
+
+using namespace nghttp2;
+
+namespace shrpx {
+
+IOControl::IOControl(RateLimit *lim) : lim_(lim), rdbits_(0) {}
+
+IOControl::~IOControl() {}
+
+void IOControl::pause_read(IOCtrlReason reason) {
+  rdbits_ |= reason;
+  if (lim_) {
+    lim_->stopw();
+  }
+}
+
+bool IOControl::resume_read(IOCtrlReason reason) {
+  rdbits_ &= ~reason;
+  if (rdbits_ == 0) {
+    if (lim_) {
+      lim_->startw();
+    }
+    return true;
+  }
+
+  return false;
+}
+
+void IOControl::force_resume_read() {
+  rdbits_ = 0;
+  if (lim_) {
+    lim_->startw();
+  }
+}
+
+} // namespace shrpx