diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
| commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
| tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /other-licenses/7zstub/src/CPP/Common/MyBuffer.h | |
| parent | Initial commit. (diff) | |
| download | firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip | |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | other-licenses/7zstub/src/CPP/Common/MyBuffer.h | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/Common/MyBuffer.h b/other-licenses/7zstub/src/CPP/Common/MyBuffer.h new file mode 100644 index 0000000000..ae320eefe9 --- /dev/null +++ b/other-licenses/7zstub/src/CPP/Common/MyBuffer.h @@ -0,0 +1,259 @@ +// Common/MyBuffer.h
+
+#ifndef __COMMON_MY_BUFFER_H
+#define __COMMON_MY_BUFFER_H
+
+#include "Defs.h"
+
+/* 7-Zip now uses CBuffer only as CByteBuffer.
+ So there is no need to use MY_ARRAY_NEW macro in CBuffer code. */
+
+template <class T> class CBuffer
+{
+ T *_items;
+ size_t _size;
+
+public:
+ void Free()
+ {
+ if (_items)
+ {
+ delete []_items;
+ _items = 0;
+ }
+ _size = 0;
+ }
+
+ CBuffer(): _items(0), _size(0) {};
+ CBuffer(size_t size): _items(0), _size(0) { _items = new T[size]; _size = size; }
+ CBuffer(const CBuffer &buffer): _items(0), _size(0)
+ {
+ size_t size = buffer._size;
+ if (size != 0)
+ {
+ _items = new T[size];
+ memcpy(_items, buffer._items, size * sizeof(T));
+ _size = size;
+ }
+ }
+
+ ~CBuffer() { delete []_items; }
+
+ operator T *() { return _items; }
+ operator const T *() const { return _items; }
+ size_t Size() const { return _size; }
+
+ void Alloc(size_t size)
+ {
+ if (size != _size)
+ {
+ Free();
+ if (size != 0)
+ {
+ _items = new T[size];
+ _size = size;
+ }
+ }
+ }
+
+ void AllocAtLeast(size_t size)
+ {
+ if (size > _size)
+ {
+ Free();
+ _items = new T[size];
+ _size = size;
+ }
+ }
+
+ void CopyFrom(const T *data, size_t size)
+ {
+ Alloc(size);
+ if (size != 0)
+ memcpy(_items, data, size * sizeof(T));
+ }
+
+ void ChangeSize_KeepData(size_t newSize, size_t keepSize)
+ {
+ if (newSize == _size)
+ return;
+ T *newBuffer = NULL;
+ if (newSize != 0)
+ {
+ newBuffer = new T[newSize];
+ if (keepSize > _size)
+ keepSize = _size;
+ if (keepSize != 0)
+ memcpy(newBuffer, _items, MyMin(keepSize, newSize) * sizeof(T));
+ }
+ delete []_items;
+ _items = newBuffer;
+ _size = newSize;
+ }
+
+ CBuffer& operator=(const CBuffer &buffer)
+ {
+ if (&buffer != this)
+ CopyFrom(buffer, buffer._size);
+ return *this;
+ }
+};
+
+template <class T>
+bool operator==(const CBuffer<T>& b1, const CBuffer<T>& b2)
+{
+ size_t size1 = b1.Size();
+ if (size1 != b2.Size())
+ return false;
+ if (size1 == 0)
+ return true;
+ return memcmp(b1, b2, size1 * sizeof(T)) == 0;
+}
+
+template <class T>
+bool operator!=(const CBuffer<T>& b1, const CBuffer<T>& b2)
+{
+ size_t size1 = b1.Size();
+ if (size1 != b2.Size())
+ return true;
+ if (size1 == 0)
+ return false;
+ return memcmp(b1, b2, size1 * sizeof(T)) != 0;
+}
+
+
+// typedef CBuffer<char> CCharBuffer;
+// typedef CBuffer<wchar_t> CWCharBuffer;
+typedef CBuffer<unsigned char> CByteBuffer;
+
+
+template <class T> class CObjArray
+{
+protected:
+ T *_items;
+private:
+ // we disable copy
+ CObjArray(const CObjArray &buffer);
+ void operator=(const CObjArray &buffer);
+public:
+ void Free()
+ {
+ delete []_items;
+ _items = 0;
+ }
+ CObjArray(size_t size): _items(0)
+ {
+ if (size != 0)
+ {
+ MY_ARRAY_NEW(_items, T, size)
+ // _items = new T[size];
+ }
+ }
+ CObjArray(): _items(0) {};
+ ~CObjArray() { delete []_items; }
+
+ operator T *() { return _items; }
+ operator const T *() const { return _items; }
+
+ void Alloc(size_t newSize)
+ {
+ delete []_items;
+ _items = 0;
+ MY_ARRAY_NEW(_items, T, newSize)
+ // _items = new T[newSize];
+ }
+};
+
+typedef CObjArray<unsigned char> CByteArr;
+typedef CObjArray<bool> CBoolArr;
+typedef CObjArray<int> CIntArr;
+typedef CObjArray<unsigned> CUIntArr;
+
+
+template <class T> class CObjArray2
+{
+ T *_items;
+ unsigned _size;
+
+ // we disable copy
+ CObjArray2(const CObjArray2 &buffer);
+ void operator=(const CObjArray2 &buffer);
+public:
+
+ void Free()
+ {
+ delete []_items;
+ _items = 0;
+ _size = 0;
+ }
+ CObjArray2(): _items(0), _size(0) {};
+ /*
+ CObjArray2(const CObjArray2 &buffer): _items(0), _size(0)
+ {
+ size_t newSize = buffer._size;
+ if (newSize != 0)
+ {
+ T *newBuffer = new T[newSize];;
+ _items = newBuffer;
+ _size = newSize;
+ const T *src = buffer;
+ for (size_t i = 0; i < newSize; i++)
+ newBuffer[i] = src[i];
+ }
+ }
+ */
+ /*
+ CObjArray2(size_t size): _items(0), _size(0)
+ {
+ if (size != 0)
+ {
+ _items = new T[size];
+ _size = size;
+ }
+ }
+ */
+
+ ~CObjArray2() { delete []_items; }
+
+ operator T *() { return _items; }
+ operator const T *() const { return _items; }
+
+ unsigned Size() const { return (unsigned)_size; }
+ bool IsEmpty() const { return _size == 0; }
+
+ // SetSize doesn't keep old items. It allocates new array if size is not equal
+ void SetSize(unsigned size)
+ {
+ if (size == _size)
+ return;
+ T *newBuffer = NULL;
+ if (size != 0)
+ {
+ MY_ARRAY_NEW(newBuffer, T, size)
+ // newBuffer = new T[size];
+ }
+ delete []_items;
+ _items = newBuffer;
+ _size = size;
+ }
+
+ /*
+ CObjArray2& operator=(const CObjArray2 &buffer)
+ {
+ Free();
+ size_t newSize = buffer._size;
+ if (newSize != 0)
+ {
+ T *newBuffer = new T[newSize];;
+ _items = newBuffer;
+ _size = newSize;
+ const T *src = buffer;
+ for (size_t i = 0; i < newSize; i++)
+ newBuffer[i] = src[i];
+ }
+ return *this;
+ }
+ */
+};
+
+#endif
|