Refactor StandardStreamsCallbackInterface

The names OnStdout/OnStderr/OnStream are not clear with regards to the
direction of the data. Renaming to use send/receive makes it less
confusing

Test: NA
Bug: NA
Flag: EXEMPT (tool)
Change-Id: I2613d8235852cd393a6bd2b5dc44ea412138949e
diff --git a/bugreport_test.cpp b/bugreport_test.cpp
index a6be203..f98bb17 100644
--- a/bugreport_test.cpp
+++ b/bugreport_test.cpp
@@ -72,10 +72,10 @@
     }
     virtual Result Perform(const ArgumentTuple& args) {
         if (type_ == kStreamStdout) {
-            ::std::tr1::get<0>(args)->OnStdout(output_.c_str(), output_.size());
+            ::std::tr1::get<0>(args)->OnStdoutReceived(output_.c_str(), output_.size());
         }
         if (type_ == kStreamStderr) {
-            ::std::tr1::get<0>(args)->OnStderr(output_.c_str(), output_.size());
+            ::std::tr1::get<0>(args)->OnStderrReceived(output_.c_str(), output_.size());
         }
     }
 
@@ -84,13 +84,13 @@
     std::string output_;
 };
 
-// Matcher used to emulated StandardStreamsCallbackInterface.OnStdout(buffer,
+// Matcher used to emulated StandardStreamsCallbackInterface.OnStdoutReceived(buffer,
 // length)
 Action<OnStandardStreamsCallbackFunction> WriteOnStdout(const std::string& output) {
     return MakeAction(new OnStandardStreamsCallbackAction(kStreamStdout, output));
 }
 
-// Matcher used to emulated StandardStreamsCallbackInterface.OnStderr(buffer,
+// Matcher used to emulated StandardStreamsCallbackInterface.OnStderrReceived(buffer,
 // length)
 Action<OnStandardStreamsCallbackFunction> WriteOnStderr(const std::string& output) {
     return MakeAction(new OnStandardStreamsCallbackAction(kStreamStderr, output));
diff --git a/client/bugreport.cpp b/client/bugreport.cpp
index 23ecb55..15b13ca 100644
--- a/client/bugreport.cpp
+++ b/client/bugreport.cpp
@@ -54,7 +54,7 @@
         SetLineMessage("generating");
     }
 
-    bool OnStdout(const char* buffer, size_t length) {
+    bool OnStdoutReceived(const char* buffer, size_t length) override {
         for (size_t i = 0; i < length; i++) {
             char c = buffer[i];
             if (c == '\n') {
@@ -67,8 +67,8 @@
         return true;
     }
 
-    bool OnStderr(const char* buffer, size_t length) {
-      return OnStream(nullptr, stderr, buffer, length, false);
+    bool OnStderrReceived(const char* buffer, size_t length) override {
+        return SendTo(nullptr, stderr, buffer, length, false);
     }
 
     int Done(int unused_) {
diff --git a/client/commandline.cpp b/client/commandline.cpp
index 79d62cd..4661400 100644
--- a/client/commandline.cpp
+++ b/client/commandline.cpp
@@ -302,15 +302,15 @@
     }
     while (protocol->Read()) {
       if (protocol->id() == ShellProtocol::kIdStdout) {
-        if (!callback->OnStdout(protocol->data(), protocol->data_length())) {
-          exit_code = SIGPIPE + 128;
-          break;
-        }
+          if (!callback->OnStdoutReceived(protocol->data(), protocol->data_length())) {
+              exit_code = SIGPIPE + 128;
+              break;
+          }
       } else if (protocol->id() == ShellProtocol::kIdStderr) {
-        if (!callback->OnStderr(protocol->data(), protocol->data_length())) {
-          exit_code = SIGPIPE + 128;
-          break;
-        }
+          if (!callback->OnStderrReceived(protocol->data(), protocol->data_length())) {
+              exit_code = SIGPIPE + 128;
+              break;
+          }
       } else if (protocol->id() == ShellProtocol::kIdExit) {
         // data() returns a char* which doesn't have defined signedness.
         // Cast to uint8_t to prevent 255 from being sign extended to INT_MIN,
@@ -338,8 +338,8 @@
         if (length <= 0) {
           break;
         }
-        if (!callback->OnStdout(buffer_ptr, length)) {
-          break;
+        if (!callback->OnStdoutReceived(buffer_ptr, length)) {
+            break;
         }
       }
     }
@@ -1377,13 +1377,13 @@
   public:
     AdbServerStateStreamsCallback() : DefaultStandardStreamsCallback(nullptr, nullptr) {}
 
-    bool OnStdout(const char* buffer, size_t length) override {
-        return OnStream(&output_, nullptr, buffer, length, false);
+    bool OnStdoutReceived(const char* buffer, size_t length) override {
+        return SendTo(&output_, nullptr, buffer, length, false);
     }
 
     int Done(int status) {
         if (output_.size() < 4) {
-            return OnStream(nullptr, stdout, output_.data(), output_.length(), false);
+            return SendTo(nullptr, stdout, output_.data(), output_.length(), false);
         }
 
         // Skip the 4-hex prefix
@@ -1395,7 +1395,7 @@
         std::string string_proto;
         google::protobuf::TextFormat::PrintToString(binary_proto, &string_proto);
 
-        return OnStream(nullptr, stdout, string_proto.data(), string_proto.length(), false);
+        return SendTo(nullptr, stdout, string_proto.data(), string_proto.length(), false);
     }
 
   private:
diff --git a/client/commandline.h b/client/commandline.h
index 912c0c4..5b3e97b 100644
--- a/client/commandline.h
+++ b/client/commandline.h
@@ -38,11 +38,11 @@
     }
     // Handles the stdout output from devices supporting the Shell protocol.
     // Returns true on success and false on failure.
-    virtual bool OnStdout(const char* buffer, size_t length) = 0;
+    virtual bool OnStdoutReceived(const char* buffer, size_t length) = 0;
 
     // Handles the stderr output from devices supporting the Shell protocol.
     // Returns true on success and false on failure.
-    virtual bool OnStderr(const char* buffer, size_t length) = 0;
+    virtual bool OnStderrReceived(const char* buffer, size_t length) = 0;
 
     // Indicates the communication is finished and returns the appropriate error
     // code.
@@ -52,8 +52,8 @@
     virtual int Done(int status) = 0;
 
   protected:
-    static bool OnStream(std::string* string, FILE* stream, const char* buffer, size_t length,
-                         bool returnErrors) {
+    static bool SendTo(std::string* string, FILE* stream, const char* buffer, size_t length,
+                       bool returnErrors) {
         if (string != nullptr) {
             string->append(buffer, length);
             return true;
@@ -72,8 +72,8 @@
 // stream or to a string passed to the constructor.
 class DefaultStandardStreamsCallback : public StandardStreamsCallbackInterface {
   public:
-    // If |stdout_str| is non-null, OnStdout will append to it.
-    // If |stderr_str| is non-null, OnStderr will append to it.
+    // If |stdout_str| is non-null, OnStdoutReceived will append to it.
+    // If |stderr_str| is non-null, OnStderrReceived will append to it.
     DefaultStandardStreamsCallback(std::string* stdout_str, std::string* stderr_str)
         : stdout_str_(stdout_str), stderr_str_(stderr_str), returnErrors_(false) {
     }
@@ -83,18 +83,23 @@
     }
 
     // Called when receiving from the device standard input stream
-    bool OnStdout(const char* buffer, size_t length) {
-        return OnStream(stdout_str_, stdout, buffer, length, returnErrors_);
+    bool OnStdoutReceived(const char* buffer, size_t length) override {
+        return SendToOut(buffer, length);
     }
 
     // Called when receiving from the device error input stream
-    bool OnStderr(const char* buffer, size_t length) {
-        return OnStream(stderr_str_, stderr, buffer, length, returnErrors_);
+    bool OnStderrReceived(const char* buffer, size_t length) override {
+        return SendToErr(buffer, length);
     }
 
     // Send to local standard input stream (or stdout_str if one was provided).
-    bool OnStreamOut(const char* buffer, size_t length) {
-        return OnStream(stdout_str_, stdout, buffer, length, returnErrors_);
+    bool SendToOut(const char* buffer, size_t length) {
+        return SendTo(stdout_str_, stdout, buffer, length, returnErrors_);
+    }
+
+    // Send to local standard error stream (or stderr_str if one was provided).
+    bool SendToErr(const char* buffer, size_t length) {
+        return SendTo(stderr_str_, stderr, buffer, length, returnErrors_);
     }
 
     int Done(int status) {
@@ -116,9 +121,9 @@
 class SilentStandardStreamsCallbackInterface : public StandardStreamsCallbackInterface {
   public:
     SilentStandardStreamsCallbackInterface() = default;
-    bool OnStdout(const char*, size_t) override final { return true; }
-    bool OnStderr(const char*, size_t) override final { return true; }
-    int Done(int status) override final { return status; }
+    bool OnStdoutReceived(const char*, size_t) final { return true; }
+    bool OnStderrReceived(const char*, size_t) final { return true; }
+    int Done(int status) final { return status; }
 };
 
 // Singleton.
@@ -132,7 +137,7 @@
     explicit ProtoBinaryToText(const std::string& m, std::string* std_out = nullptr,
                                std::string* std_err = nullptr)
         : DefaultStandardStreamsCallback(std_out, std_err), message(m) {}
-    bool OnStdout(const char* b, const size_t l) override {
+    bool OnStdoutReceived(const char* b, size_t l) override {
         constexpr size_t kHeader_size = 4;
 
         // Add the incoming bytes to our internal buffer.
@@ -162,12 +167,12 @@
         // Drop bytes that we just consumed.
         buffer_.erase(buffer_.begin(), buffer_.begin() + kHeader_size + expected_size);
 
-        OnStreamOut(message.data(), message.length());
-        OnStreamOut(string_proto.data(), string_proto.length());
+        SendToOut(message.data(), message.length());
+        SendToOut(string_proto.data(), string_proto.length());
 
         // Recurse if there is still data in our buffer (there may be more messages).
         if (!buffer_.empty()) {
-            OnStdout("", 0);
+            OnStdoutReceived("", 0);
         }
 
         return true;
diff --git a/client/commandline_test.cpp b/client/commandline_test.cpp
index 33afbe3..249a2f3 100644
--- a/client/commandline_test.cpp
+++ b/client/commandline_test.cpp
@@ -47,7 +47,7 @@
     std::string err;
     std::string message = "Testing123";
     auto converter = ProtoBinaryToText<adb::proto::AppProcesses>(message, &out, &err);
-    converter.OnStdout(hex4_proto.data(), hex4_proto.size());
+    converter.OnStdoutReceived(hex4_proto.data(), hex4_proto.size());
 
     ASSERT_FALSE(out.empty());
     ASSERT_TRUE(out.contains(message));
@@ -70,7 +70,7 @@
     std::string message = "Testing123";
     auto converter = ProtoBinaryToText<adb::proto::AppProcesses>(message, &out, &err);
     for (auto i = 0u; i < hex4_proto.size(); i++) {
-        converter.OnStdout(hex4_proto.data() + i, 1);
+        converter.OnStdoutReceived(hex4_proto.data() + i, 1);
     }
 
     ASSERT_FALSE(out.empty());
@@ -92,7 +92,7 @@
     std::string err;
     std::string message = "Testing 123";
     auto converter = ProtoBinaryToText<adb::proto::AppProcesses>(message, &out, &err);
-    converter.OnStdout(hex4_proto.data(), hex4_proto.size() / 2);
+    converter.OnStdoutReceived(hex4_proto.data(), hex4_proto.size() / 2);
     ASSERT_TRUE(out.empty());
 }
 
@@ -122,7 +122,7 @@
     std::string err;
     std::string message = "Testing123";
     auto converter = ProtoBinaryToText<adb::proto::AppProcesses>(message, &out, &err);
-    converter.OnStdout(two_messages.data(), two_messages.size());
+    converter.OnStdoutReceived(two_messages.data(), two_messages.size());
 
     ASSERT_FALSE(out.empty());
     ASSERT_EQ(2u, count_occurrences(out, message));
@@ -156,7 +156,7 @@
     std::string err;
     std::string message = "Testing123";
     auto converter = ProtoBinaryToText<adb::proto::AppProcesses>(message, &out, &err);
-    converter.OnStdout(two_messages.data(), two_messages.size());
+    converter.OnStdoutReceived(two_messages.data(), two_messages.size());
 
     ASSERT_FALSE(out.empty());
     ASSERT_EQ(1u, count_occurrences(out, message));
@@ -166,7 +166,7 @@
     // Send the remainder of second proto
     out.clear();
     std::string remaining = hex4_proto2.substr(hex4_proto2.size() / 2, hex4_proto2.size());
-    converter.OnStdout(remaining.data(), remaining.size());
+    converter.OnStdoutReceived(remaining.data(), remaining.size());
     ASSERT_FALSE(out.empty());
     ASSERT_EQ(1u, count_occurrences(out, message));
     ASSERT_EQ(0u, count_occurrences(out, process_name1));