1 files changed, 217 insertions, 0 deletions
diff --git a/dom/media/webrtc/transport/test/dummysocket.h b/dom/media/webrtc/transport/test/dummysocket.h
new file mode 100644
index 0000000000..6e20a1f7e7
--- /dev/null
+++ b/dom/media/webrtc/transport/test/dummysocket.h
@@ -0,0 +1,217 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Original authors: ekr@rtfm.com; ryan@tokbox.com
+
+#ifndef MTRANSPORT_DUMMY_SOCKET_H_
+#define MTRANSPORT_DUMMY_SOCKET_H_
+
+#include "nr_socket_prsock.h"
+
+extern "C" {
+#include "transport_addr.h"
+}
+
+#include "mediapacket.h"
+#include "mozilla/UniquePtr.h"
+
+#define GTEST_HAS_RTTI 0
+#include "gtest/gtest.h"
+#include "gtest_utils.h"
+
+namespace mozilla {
+
+static UniquePtr<MediaPacket> merge(UniquePtr<MediaPacket> a,
+                                    UniquePtr<MediaPacket> b) {
+  if (a && a->len() && b && b->len()) {
+    UniquePtr<uint8_t[]> data(new uint8_t[a->len() + b->len()]);
+    memcpy(data.get(), a->data(), a->len());
+    memcpy(data.get() + a->len(), b->data(), b->len());
+
+    UniquePtr<MediaPacket> merged(new MediaPacket);
+    merged->Take(std::move(data), a->len() + b->len());
+    return merged;
+  }
+
+  if (a && a->len()) {
+    return a;
+  }
+
+  if (b && b->len()) {
+    return b;
+  }
+
+  return nullptr;
+}
+
+class DummySocket : public NrSocketBase {
+ public:
+  DummySocket()
+      : writable_(UINT_MAX),
+        write_buffer_(nullptr),
+        readable_(UINT_MAX),
+        read_buffer_(nullptr),
+        cb_(nullptr),
+        cb_arg_(nullptr),
+        self_(nullptr) {}
+
+  // the nr_socket APIs
+  virtual int create(nr_transport_addr* addr) override { return 0; }
+
+  virtual int sendto(const void* msg, size_t len, int flags,
+                     const nr_transport_addr* to) override {
+    MOZ_CRASH();
+    return 0;
+  }
+
+  virtual int recvfrom(void* buf, size_t maxlen, size_t* len, int flags,
+                       nr_transport_addr* from) override {
+    MOZ_CRASH();
+    return 0;
+  }
+
+  virtual int getaddr(nr_transport_addr* addrp) override {
+    MOZ_CRASH();
+    return 0;
+  }
+
+  virtual void close() override {}
+
+  virtual int connect(const nr_transport_addr* addr) override {
+    nr_transport_addr_copy(&connect_addr_, addr);
+    return 0;
+  }
+
+  virtual int listen(int backlog) override { return 0; }
+
+  virtual int accept(nr_transport_addr* addrp, nr_socket** sockp) override {
+    return 0;
+  }
+
+  virtual int write(const void* msg, size_t len, size_t* written) override {
+    size_t to_write = std::min(len, writable_);
+
+    if (to_write) {
+      UniquePtr<MediaPacket> msgbuf(new MediaPacket);
+      msgbuf->Copy(static_cast<const uint8_t*>(msg), to_write);
+      write_buffer_ = merge(std::move(write_buffer_), std::move(msgbuf));
+    }
+
+    *written = to_write;
+
+    return 0;
+  }
+
+  virtual int read(void* buf, size_t maxlen, size_t* len) override {
+    if (!read_buffer_.get()) {
+      return R_WOULDBLOCK;
+    }
+
+    size_t to_read = std::min(read_buffer_->len(), std::min(maxlen, readable_));
+
+    memcpy(buf, read_buffer_->data(), to_read);
+    *len = to_read;
+
+    if (to_read < read_buffer_->len()) {
+      MediaPacket* newPacket = new MediaPacket;
+      newPacket->Copy(read_buffer_->data() + to_read,
+                      read_buffer_->len() - to_read);
+      read_buffer_.reset(newPacket);
+    } else {
+      read_buffer_.reset();
+    }
+
+    return 0;
+  }
+
+  // Implementations of the async_event APIs.
+  // These are no-ops because we handle scheduling manually
+  // for test purposes.
+  virtual int async_wait(int how, NR_async_cb cb, void* cb_arg, char* function,
+                         int line) override {
+    EXPECT_EQ(nullptr, cb_);
+    cb_ = cb;
+    cb_arg_ = cb_arg;
+
+    return 0;
+  }
+
+  virtual int cancel(int how) override {
+    cb_ = nullptr;
+    cb_arg_ = nullptr;
+
+    return 0;
+  }
+
+  // Read/Manipulate the current state.
+  void CheckWriteBuffer(const uint8_t* data, size_t len) {
+    if (!len) {
+      EXPECT_EQ(nullptr, write_buffer_.get());
+    } else {
+      EXPECT_NE(nullptr, write_buffer_.get());
+      ASSERT_EQ(len, write_buffer_->len());
+      ASSERT_EQ(0, memcmp(data, write_buffer_->data(), len));
+    }
+  }
+
+  void ClearWriteBuffer() { write_buffer_.reset(); }
+
+  void SetWritable(size_t val) { writable_ = val; }
+
+  void FireWritableCb() {
+    NR_async_cb cb = cb_;
+    void* cb_arg = cb_arg_;
+
+    cb_ = nullptr;
+    cb_arg_ = nullptr;
+
+    cb(this, NR_ASYNC_WAIT_WRITE, cb_arg);
+  }
+
+  void SetReadBuffer(const uint8_t* data, size_t len) {
+    EXPECT_EQ(nullptr, write_buffer_.get());
+    read_buffer_.reset(new MediaPacket);
+    read_buffer_->Copy(data, len);
+  }
+
+  void ClearReadBuffer() { read_buffer_.reset(); }
+
+  void SetReadable(size_t val) { readable_ = val; }
+
+  nr_socket* get_nr_socket() {
+    if (!self_) {
+      int r = nr_socket_create_int(this, vtbl(), &self_);
+      AddRef();
+      if (r) return nullptr;
+    }
+
+    return self_;
+  }
+
+  nr_transport_addr* get_connect_addr() { return &connect_addr_; }
+
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(DummySocket, override);
+
+ private:
+  ~DummySocket() = default;
+
+  DISALLOW_COPY_ASSIGN(DummySocket);
+
+  size_t writable_;  // Amount we allow someone to write.
+  UniquePtr<MediaPacket> write_buffer_;
+  size_t readable_;  // Amount we allow someone to read.
+  UniquePtr<MediaPacket> read_buffer_;
+
+  NR_async_cb cb_;
+  void* cb_arg_;
+  nr_socket* self_;
+
+  nr_transport_addr connect_addr_;
+};
+
+}  // namespace mozilla
+
+#endif