(n/a) open source quic gso batch writer. not protected.
To chromium code merger: do not add these files to BUILD.gn
PiperOrigin-RevId: 315328138
Change-Id: I4dc9d2a682659dfb8e04b8bdaa6c1423995f0ada
diff --git a/quic/core/quic_syscall_wrapper.cc b/quic/core/quic_syscall_wrapper.cc
new file mode 100644
index 0000000..b2404c6
--- /dev/null
+++ b/quic/core/quic_syscall_wrapper.cc
@@ -0,0 +1,49 @@
+// Copyright (c) 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/third_party/quiche/src/quic/core/quic_syscall_wrapper.h"
+
+#include <atomic>
+#include <cerrno>
+
+namespace quic {
+namespace {
+std::atomic<QuicSyscallWrapper*> global_syscall_wrapper(new QuicSyscallWrapper);
+} // namespace
+
+ssize_t QuicSyscallWrapper::Sendmsg(int sockfd, const msghdr* msg, int flags) {
+ return ::sendmsg(sockfd, msg, flags);
+}
+
+int QuicSyscallWrapper::Sendmmsg(int sockfd,
+ mmsghdr* msgvec,
+ unsigned int vlen,
+ int flags) {
+#if defined(__linux__) && !defined(__ANDROID__)
+ return ::sendmmsg(sockfd, msgvec, vlen, flags);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+QuicSyscallWrapper* GetGlobalSyscallWrapper() {
+ return global_syscall_wrapper.load();
+}
+
+void SetGlobalSyscallWrapper(QuicSyscallWrapper* wrapper) {
+ global_syscall_wrapper.store(wrapper);
+}
+
+ScopedGlobalSyscallWrapperOverride::ScopedGlobalSyscallWrapperOverride(
+ QuicSyscallWrapper* wrapper_in_scope)
+ : original_wrapper_(GetGlobalSyscallWrapper()) {
+ SetGlobalSyscallWrapper(wrapper_in_scope);
+}
+
+ScopedGlobalSyscallWrapperOverride::~ScopedGlobalSyscallWrapperOverride() {
+ SetGlobalSyscallWrapper(original_wrapper_);
+}
+
+} // namespace quic
