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// Copyright 2014 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 "mojo/system/embedder/embedder.h"
#include <string.h>
#include "base/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/macros.h"
#include "mojo/public/system/core.h"
#include "mojo/system/embedder/platform_channel_pair.h"
#include "mojo/system/embedder/test_embedder.h"
#include "mojo/system/test_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace mojo {
namespace embedder {
namespace {
class EmbedderTest : public testing::Test {
public:
EmbedderTest() {}
virtual ~EmbedderTest() {}
protected:
system::test::TestIOThread* io_thread() { return &io_thread_; }
private:
system::test::TestIOThread io_thread_;
DISALLOW_COPY_AND_ASSIGN(EmbedderTest);
};
void StoreChannelInfo(ChannelInfo** store_channel_info_here,
ChannelInfo* channel_info) {
CHECK(store_channel_info_here);
CHECK(channel_info);
*store_channel_info_here = channel_info;
}
TEST_F(EmbedderTest, ChannelsBasic) {
Init();
PlatformChannelPair channel_pair;
ScopedPlatformHandle server_handle = channel_pair.PassServerHandle();
ScopedPlatformHandle client_handle = channel_pair.PassClientHandle();
ChannelInfo* server_channel_info = NULL;
MojoHandle server_mp = CreateChannel(server_handle.Pass(),
io_thread()->task_runner(),
base::Bind(&StoreChannelInfo,
&server_channel_info));
EXPECT_NE(server_mp, MOJO_HANDLE_INVALID);
ChannelInfo* client_channel_info = NULL;
MojoHandle client_mp = CreateChannel(client_handle.Pass(),
io_thread()->task_runner(),
base::Bind(&StoreChannelInfo,
&client_channel_info));
EXPECT_NE(client_mp, MOJO_HANDLE_INVALID);
// We can write to a message pipe handle immediately.
const char kHello[] = "hello";
EXPECT_EQ(MOJO_RESULT_OK,
MojoWriteMessage(server_mp, kHello,
static_cast<uint32_t>(sizeof(kHello)), NULL, 0,
MOJO_WRITE_MESSAGE_FLAG_NONE));
// Now wait for the other side to become readable.
EXPECT_EQ(MOJO_RESULT_OK,
MojoWait(client_mp, MOJO_WAIT_FLAG_READABLE,
MOJO_DEADLINE_INDEFINITE));
char buffer[1000] = {};
uint32_t num_bytes = static_cast<uint32_t>(sizeof(buffer));
EXPECT_EQ(MOJO_RESULT_OK,
MojoReadMessage(client_mp, buffer, &num_bytes, NULL, NULL,
MOJO_READ_MESSAGE_FLAG_NONE));
EXPECT_EQ(sizeof(kHello), num_bytes);
EXPECT_STREQ(kHello, buffer);
EXPECT_EQ(MOJO_RESULT_OK, MojoClose(server_mp));
EXPECT_EQ(MOJO_RESULT_OK, MojoClose(client_mp));
EXPECT_TRUE(server_channel_info != NULL);
system::test::PostTaskAndWait(io_thread()->task_runner(),
FROM_HERE,
base::Bind(&DestroyChannelOnIOThread,
server_channel_info));
EXPECT_TRUE(client_channel_info != NULL);
system::test::PostTaskAndWait(io_thread()->task_runner(),
FROM_HERE,
base::Bind(&DestroyChannelOnIOThread,
client_channel_info));
EXPECT_TRUE(test::Shutdown());
}
TEST_F(EmbedderTest, ChannelsHandlePassing) {
Init();
PlatformChannelPair channel_pair;
ScopedPlatformHandle server_handle = channel_pair.PassServerHandle();
ScopedPlatformHandle client_handle = channel_pair.PassClientHandle();
ChannelInfo* server_channel_info = NULL;
MojoHandle server_mp = CreateChannel(server_handle.Pass(),
io_thread()->task_runner(),
base::Bind(&StoreChannelInfo,
&server_channel_info));
EXPECT_NE(server_mp, MOJO_HANDLE_INVALID);
ChannelInfo* client_channel_info = NULL;
MojoHandle client_mp = CreateChannel(client_handle.Pass(),
io_thread()->task_runner(),
base::Bind(&StoreChannelInfo,
&client_channel_info));
EXPECT_NE(client_mp, MOJO_HANDLE_INVALID);
MojoHandle h0, h1;
EXPECT_EQ(MOJO_RESULT_OK, MojoCreateMessagePipe(&h0, &h1));
// Write a message to |h0| (attaching nothing).
const char kHello[] = "hello";
EXPECT_EQ(MOJO_RESULT_OK,
MojoWriteMessage(h0, kHello,
static_cast<uint32_t>(sizeof(kHello)), NULL, 0,
MOJO_WRITE_MESSAGE_FLAG_NONE));
// Write one message to |server_mp|, attaching |h1|.
const char kWorld[] = "world!!!";
EXPECT_EQ(MOJO_RESULT_OK,
MojoWriteMessage(server_mp, kWorld,
static_cast<uint32_t>(sizeof(kWorld)), &h1, 1,
MOJO_WRITE_MESSAGE_FLAG_NONE));
h1 = MOJO_HANDLE_INVALID;
// Write another message to |h0|.
const char kFoo[] = "foo";
EXPECT_EQ(MOJO_RESULT_OK,
MojoWriteMessage(h0, kFoo,
static_cast<uint32_t>(sizeof(kFoo)), NULL, 0,
MOJO_WRITE_MESSAGE_FLAG_NONE));
// Wait for |client_mp| to become readable.
EXPECT_EQ(MOJO_RESULT_OK,
MojoWait(client_mp, MOJO_WAIT_FLAG_READABLE,
MOJO_DEADLINE_INDEFINITE));
// Read a message from |client_mp|.
char buffer[1000] = {};
uint32_t num_bytes = static_cast<uint32_t>(sizeof(buffer));
MojoHandle handles[10] = {};
uint32_t num_handles = arraysize(handles);
EXPECT_EQ(MOJO_RESULT_OK,
MojoReadMessage(client_mp, buffer, &num_bytes, handles,
&num_handles, MOJO_READ_MESSAGE_FLAG_NONE));
EXPECT_EQ(sizeof(kWorld), num_bytes);
EXPECT_STREQ(kWorld, buffer);
EXPECT_EQ(1u, num_handles);
EXPECT_NE(handles[0], MOJO_HANDLE_INVALID);
h1 = handles[0];
// Wait for |h1| to become readable.
EXPECT_EQ(MOJO_RESULT_OK,
MojoWait(h1, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE));
// Read a message from |h1|.
memset(buffer, 0, sizeof(buffer));
num_bytes = static_cast<uint32_t>(sizeof(buffer));
memset(handles, 0, sizeof(handles));
num_handles = arraysize(handles);
EXPECT_EQ(MOJO_RESULT_OK,
MojoReadMessage(h1, buffer, &num_bytes, handles, &num_handles,
MOJO_READ_MESSAGE_FLAG_NONE));
EXPECT_EQ(sizeof(kHello), num_bytes);
EXPECT_STREQ(kHello, buffer);
EXPECT_EQ(0u, num_handles);
// Wait for |h1| to become readable (again).
EXPECT_EQ(MOJO_RESULT_OK,
MojoWait(h1, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE));
// Read the second message from |h1|.
memset(buffer, 0, sizeof(buffer));
num_bytes = static_cast<uint32_t>(sizeof(buffer));
EXPECT_EQ(MOJO_RESULT_OK,
MojoReadMessage(h1, buffer, &num_bytes, NULL, NULL,
MOJO_READ_MESSAGE_FLAG_NONE));
EXPECT_EQ(sizeof(kFoo), num_bytes);
EXPECT_STREQ(kFoo, buffer);
// Write a message to |h1|.
const char kBarBaz[] = "barbaz";
EXPECT_EQ(MOJO_RESULT_OK,
MojoWriteMessage(h1, kBarBaz,
static_cast<uint32_t>(sizeof(kBarBaz)), NULL, 0,
MOJO_WRITE_MESSAGE_FLAG_NONE));
// Wait for |h0| to become readable.
EXPECT_EQ(MOJO_RESULT_OK,
MojoWait(h0, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE));
// Read a message from |h0|.
memset(buffer, 0, sizeof(buffer));
num_bytes = static_cast<uint32_t>(sizeof(buffer));
EXPECT_EQ(MOJO_RESULT_OK,
MojoReadMessage(h0, buffer, &num_bytes, NULL, NULL,
MOJO_READ_MESSAGE_FLAG_NONE));
EXPECT_EQ(sizeof(kBarBaz), num_bytes);
EXPECT_STREQ(kBarBaz, buffer);
EXPECT_EQ(MOJO_RESULT_OK, MojoClose(server_mp));
EXPECT_EQ(MOJO_RESULT_OK, MojoClose(client_mp));
EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h0));
EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h1));
EXPECT_TRUE(test::Shutdown());
}
// TODO(vtl): Test immediate write & close.
// TODO(vtl): Test broken-connection cases.
} // namespace
} // namespace embedder
} // namespace mojo
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