rtc::Buffer: Remove backwards compatibility band-aids
This CL makes two changes to rtc::Buffer that have had to wait for
Chromium's use of it to be modernized:
1. Change default return type of rtc::Buffer::data() from char* to
uint8_t*. uint8_t is a more natural type for bytes, and won't
accidentally convert to a string. (Chromium previously expected
the default return type to be char, which is why
rtc::Buffer::data() initially got char as default return type in
9478437f, but that's been fixed now.)
2. Stop accepting void* inputs in constructors and methods. While
this is convenient, it's also dangerous since any pointer type
will implicitly convert to void*.
R=tommi@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/44269004
Cr-Commit-Position: refs/heads/master@{#9121}
diff --git a/talk/session/media/channel.cc b/talk/session/media/channel.cc
index 1ce65fa..0034f15 100644
--- a/talk/session/media/channel.cc
+++ b/talk/session/media/channel.cc
@@ -512,7 +512,7 @@
// Protect if needed.
if (srtp_filter_.IsActive()) {
bool res;
- uint8_t* data = packet->data<uint8_t>();
+ uint8_t* data = packet->data();
int len = static_cast<int>(packet->size());
if (!rtcp) {
// If ENABLE_EXTERNAL_AUTH flag is on then packet authentication is not done
diff --git a/webrtc/base/buffer.h b/webrtc/base/buffer.h
index 8959b40..8071701 100644
--- a/webrtc/base/buffer.h
+++ b/webrtc/base/buffer.h
@@ -40,20 +40,6 @@
using t = decltype(F(static_cast<T*>(nullptr)));
};
-// Deprecated: Accept void* in addition to the byte-sized types.
-// TODO(kwiberg): Remove once Chromium doesn't need this anymore.
-template <typename T>
-struct ByteTypeOrVoid {
- private:
- static int F(uint8_t*);
- static int F(int8_t*);
- static int F(char*);
- static int F(void*);
-
- public:
- using t = decltype(F(static_cast<T*>(nullptr)));
-};
-
} // namespace internal
// Basic buffer class, can be grown and shrunk dynamically.
@@ -70,10 +56,10 @@
// Construct a buffer and copy the specified number of bytes into it. The
// source array may be (const) uint8_t*, int8_t*, or char*.
- template <typename T, typename internal::ByteTypeOrVoid<T>::t = 0>
+ template <typename T, typename internal::ByteType<T>::t = 0>
Buffer(const T* data, size_t size)
: Buffer(data, size, size) {}
- template <typename T, typename internal::ByteTypeOrVoid<T>::t = 0>
+ template <typename T, typename internal::ByteType<T>::t = 0>
Buffer(const T* data, size_t size, size_t capacity)
: Buffer(size, capacity) {
std::memcpy(data_.get(), data, size);
@@ -86,15 +72,14 @@
~Buffer();
- // Get a pointer to the data. Just .data() will give you a (const) char*,
- // but you may also use .data<int8_t>() and .data<uint8_t>().
- // TODO(kwiberg): Change default to uint8_t
- template <typename T = char, typename internal::ByteType<T>::t = 0>
+ // Get a pointer to the data. Just .data() will give you a (const) uint8_t*,
+ // but you may also use .data<int8_t>() and .data<char>().
+ template <typename T = uint8_t, typename internal::ByteType<T>::t = 0>
const T* data() const {
assert(IsConsistent());
return reinterpret_cast<T*>(data_.get());
}
- template <typename T = char, typename internal::ByteType<T>::t = 0>
+ template <typename T = uint8_t, typename internal::ByteType<T>::t = 0>
T* data() {
assert(IsConsistent());
return reinterpret_cast<T*>(data_.get());
@@ -133,7 +118,7 @@
// Replace the contents of the buffer. Accepts the same types as the
// constructors.
- template <typename T, typename internal::ByteTypeOrVoid<T>::t = 0>
+ template <typename T, typename internal::ByteType<T>::t = 0>
void SetData(const T* data, size_t size) {
assert(IsConsistent());
size_ = 0;
@@ -146,7 +131,7 @@
void SetData(const Buffer& buf) { SetData(buf.data(), buf.size()); }
// Append data to the buffer. Accepts the same types as the constructors.
- template <typename T, typename internal::ByteTypeOrVoid<T>::t = 0>
+ template <typename T, typename internal::ByteType<T>::t = 0>
void AppendData(const T* data, size_t size) {
assert(IsConsistent());
const size_t new_size = size_ + size;
diff --git a/webrtc/base/buffer_unittest.cc b/webrtc/base/buffer_unittest.cc
index 963209c..f1ae6b8 100644
--- a/webrtc/base/buffer_unittest.cc
+++ b/webrtc/base/buffer_unittest.cc
@@ -137,11 +137,11 @@
TEST(BufferTest, TestMoveConstruct) {
Buffer buf1(kTestData, 3, 40);
- const uint8_t* data = buf1.data<uint8_t>();
+ const uint8_t* data = buf1.data();
Buffer buf2(buf1.Pass());
EXPECT_EQ(buf2.size(), 3u);
EXPECT_EQ(buf2.capacity(), 40u);
- EXPECT_EQ(buf2.data<uint8_t>(), data);
+ EXPECT_EQ(buf2.data(), data);
buf1.Clear();
EXPECT_EQ(buf1.size(), 0u);
EXPECT_EQ(buf1.capacity(), 0u);
@@ -150,12 +150,12 @@
TEST(BufferTest, TestMoveAssign) {
Buffer buf1(kTestData, 3, 40);
- const uint8_t* data = buf1.data<uint8_t>();
+ const uint8_t* data = buf1.data();
Buffer buf2(kTestData);
buf2 = buf1.Pass();
EXPECT_EQ(buf2.size(), 3u);
EXPECT_EQ(buf2.capacity(), 40u);
- EXPECT_EQ(buf2.data<uint8_t>(), data);
+ EXPECT_EQ(buf2.data(), data);
buf1.Clear();
EXPECT_EQ(buf1.size(), 0u);
EXPECT_EQ(buf1.capacity(), 0u);
@@ -165,16 +165,16 @@
TEST(BufferTest, TestSwap) {
Buffer buf1(kTestData, 3);
Buffer buf2(kTestData, 6, 40);
- uint8_t* data1 = buf1.data<uint8_t>();
- uint8_t* data2 = buf2.data<uint8_t>();
+ uint8_t* data1 = buf1.data();
+ uint8_t* data2 = buf2.data();
using std::swap;
swap(buf1, buf2);
EXPECT_EQ(buf1.size(), 6u);
EXPECT_EQ(buf1.capacity(), 40u);
- EXPECT_EQ(buf1.data<uint8_t>(), data2);
+ EXPECT_EQ(buf1.data(), data2);
EXPECT_EQ(buf2.size(), 3u);
EXPECT_EQ(buf2.capacity(), 3u);
- EXPECT_EQ(buf2.data<uint8_t>(), data1);
+ EXPECT_EQ(buf2.data(), data1);
}
} // namespace rtc
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_sender_unittest.cc b/webrtc/modules/rtp_rtcp/source/rtp_sender_unittest.cc
index 9b168fe..566772a 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_sender_unittest.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_sender_unittest.cc
@@ -82,7 +82,7 @@
packets_sent_++;
rtc::Buffer* buffer =
new rtc::Buffer(reinterpret_cast<const uint8_t*>(data), len);
- last_sent_packet_ = buffer->data<uint8_t>();
+ last_sent_packet_ = buffer->data();
last_sent_packet_len_ = len;
total_bytes_sent_ += len;
sent_packets_.push_back(buffer);
