Revert "DynamicBuffer: implement BDataIO"

This reverts commit 36b1f55a18.

headers/private/net/DynamicBuffer.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2014, Haiku, Inc. All Rights Reserved.
+ * Copyright 2009, Haiku, Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  *
  * Authors:
@@ -9,11 +9,10 @@
 #ifndef _DYNAMIC_BUFFER_H
 #define _DYNAMIC_BUFFER_H
 
-#include <DataIO.h>
 #include <SupportDefs.h>
 
 
-class DynamicBuffer : public BDataIO {
+class DynamicBuffer {
 public:
 	DynamicBuffer(size_t initialSize = 0);
 	~DynamicBuffer();
@@ -26,11 +25,11 @@ public:
 	
 	// Insert data at the end of the buffer. The buffer will be increased to
 	// accomodate the data if needed.
-	status_t Write(const void* data, size_t size);
+	status_t Insert(const void* data, size_t size);
 	
 	// Remove data from the start of the buffer. Move the buffer start
 	// pointer to point to the data following it.
-	ssize_t Read(void* data, size_t size);
+	status_t Remove(void* data, size_t size);
 
 	// Return a pointer to the underlying buffer. Note this will not
 	// necessarily be a pointer to the start of the allocated memory as the

src/kits/network/libnetapi/DynamicBuffer.cpp

@@ -68,7 +68,7 @@ DynamicBuffer::InitCheck() const
 
 
 status_t
-DynamicBuffer::Write(const void* data, size_t size)
+DynamicBuffer::Insert(const void* data, size_t size)
 {
 	if (fInit != B_OK)
 		return fInit;
@@ -84,14 +84,14 @@ DynamicBuffer::Write(const void* data, size_t size)
 }
 
 
-ssize_t
-DynamicBuffer::Read(void* data, size_t size)
+status_t
+DynamicBuffer::Remove(void* data, size_t size)
 {
 	if (fInit != B_OK)
 		return fInit;
 
-	if (size > Size())
-		size = Size();
+	if (fDataStart + size > fDataEnd)
+		return B_BUFFER_OVERFLOW;
 
 	memcpy(data, fBuffer + fDataStart, size);
 	fDataStart += size;
@@ -99,7 +99,7 @@ DynamicBuffer::Read(void* data, size_t size)
 	if (fDataStart == fDataEnd)
 		fDataStart = fDataEnd = 0;
 
-	return size;
+	return B_OK;
 }
 
 

src/kits/network/libnetapi/NetBuffer.cpp

@@ -54,7 +54,7 @@ BNetBuffer::BNetBuffer(BMessage* archive) :
 		&bufferSize) == B_OK) {
 		fImpl = new (std::nothrow) DynamicBuffer(bufferSize);
 		if (fImpl != NULL) {
-			status_t result = fImpl->Write(bufferPtr, bufferSize);
+			status_t result = fImpl->Insert(bufferPtr, bufferSize);
 			if (result == B_OK)
 				fInit = fImpl->InitCheck();
 			else
@@ -185,7 +185,7 @@ BNetBuffer::AppendString(const char* data)
 status_t
 BNetBuffer::AppendData(const void* data, size_t size)
 {
-	return fImpl->Write(data, size);
+	return fImpl->Insert(data, size);
 }
 
 
@@ -332,7 +332,7 @@ BNetBuffer::RemoveString(char* data, size_t size)
 status_t
 BNetBuffer::RemoveData(void* data, size_t size)
 {
-	return fImpl->Read(data, size);
+	return fImpl->Remove(data, size);
 }