Index: icu46/source/common/bytestream.cpp |
=================================================================== |
--- icu46/source/common/bytestream.cpp (revision 0) |
+++ icu46/source/common/bytestream.cpp (revision 0) |
@@ -0,0 +1,73 @@ |
+// Copyright (C) 2009-2010, International Business Machines |
+// Corporation and others. All Rights Reserved. |
+// |
+// Copyright 2007 Google Inc. All Rights Reserved. |
+// Author: sanjay@google.com (Sanjay Ghemawat) |
+ |
+#include "unicode/utypes.h" |
+#include "unicode/bytestream.h" |
+#include "cmemory.h" |
+ |
+U_NAMESPACE_BEGIN |
+ |
+char* ByteSink::GetAppendBuffer(int32_t min_capacity, |
+ int32_t /*desired_capacity_hint*/, |
+ char* scratch, int32_t scratch_capacity, |
+ int32_t* result_capacity) { |
+ if (min_capacity < 1 || scratch_capacity < min_capacity) { |
+ *result_capacity = 0; |
+ return NULL; |
+ } |
+ *result_capacity = scratch_capacity; |
+ return scratch; |
+} |
+ |
+void ByteSink::Flush() {} |
+ |
+CheckedArrayByteSink::CheckedArrayByteSink(char* outbuf, int32_t capacity) |
+ : outbuf_(outbuf), capacity_(capacity < 0 ? 0 : capacity), |
+ size_(0), appended_(0), overflowed_(FALSE) { |
+} |
+ |
+CheckedArrayByteSink& CheckedArrayByteSink::Reset() { |
+ size_ = appended_ = 0; |
+ overflowed_ = FALSE; |
+ return *this; |
+} |
+ |
+void CheckedArrayByteSink::Append(const char* bytes, int32_t n) { |
+ if (n <= 0) { |
+ return; |
+ } |
+ appended_ += n; |
+ int32_t available = capacity_ - size_; |
+ if (n > available) { |
+ n = available; |
+ overflowed_ = TRUE; |
+ } |
+ if (n > 0 && bytes != (outbuf_ + size_)) { |
+ uprv_memcpy(outbuf_ + size_, bytes, n); |
+ } |
+ size_ += n; |
+} |
+ |
+char* CheckedArrayByteSink::GetAppendBuffer(int32_t min_capacity, |
+ int32_t /*desired_capacity_hint*/, |
+ char* scratch, |
+ int32_t scratch_capacity, |
+ int32_t* result_capacity) { |
+ if (min_capacity < 1 || scratch_capacity < min_capacity) { |
+ *result_capacity = 0; |
+ return NULL; |
+ } |
+ int32_t available = capacity_ - size_; |
+ if (available >= min_capacity) { |
+ *result_capacity = available; |
+ return outbuf_ + size_; |
+ } else { |
+ *result_capacity = scratch_capacity; |
+ return scratch; |
+ } |
+} |
+ |
+U_NAMESPACE_END |
Property changes on: icu46/source/common/bytestream.cpp |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |