Cleanup: Delete remaining Blob code

3 files changed, 0 insertions, 426 deletions

diff --git a/src/misc/CMakeLists.txt b/src/misc/CMakeLists.txt
index 76780679f..ee2ca6a41 100644
--- a/src/misc/CMakeLists.txt
+++ b/src/misc/CMakeLists.txt
@@ -1,7 +1,6 @@
 add_files(
     array.hpp
     binaryheap.hpp
-    blob.hpp
     countedobj.cpp
     countedptr.hpp
     dbg_helpers.cpp
diff --git a/src/misc/blob.hpp b/src/misc/blob.hpp
deleted file mode 100644
index 7784b6af6..000000000
--- a/src/misc/blob.hpp
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
- * This file is part of OpenTTD.
- * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
- * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/** @file blob.hpp Support for storing random binary data. */
-
-#ifndef BLOB_HPP
-#define BLOB_HPP
-
-#include "../core/alloc_func.hpp"
-
-/**
- * Base class for simple binary blobs.
- *  Item is byte.
- *  The word 'simple' means:
- *    - no configurable allocator type (always made from heap)
- *    - no smart deallocation - deallocation must be called from the same
- *        module (DLL) where the blob was allocated
- *    - no configurable allocation policy (how big blocks should be allocated)
- *    - no extra ownership policy (i.e. 'copy on write') when blob is copied
- *    - no thread synchronization at all
- *
- *  Internal member layout:
- *  1. The only class member is pointer to the first item (see union).
- *  2. Allocated block contains the blob header (see BlobHeader) followed by the raw byte data.
- *     Always, when it allocates memory the allocated size is:
- *                                                      sizeof(BlobHeader) + <data capacity>
- *  3. Two 'virtual' members (items and capacity) are stored in the BlobHeader at beginning
- *     of the allocated block.
- *  4. The pointer of the union pobsize_ts behind the header (to the first data byte).
- *     When memory block is allocated, the sizeof(BlobHeader) it added to it.
- *  5. Benefits of this layout:
- *     - items are accessed in the simplest possible way - just dereferencing the pointer,
- *       which is good for performance (assuming that data are accessed most often).
- *     - sizeof(blob) is the same as the size of any other pointer
- *  6. Drawbacks of this layout:
- *     - the fact that a pointer to the allocated block is adjusted by sizeof(BlobHeader) before
- *       it is stored can lead to several confusions:
- *         - it is not a common pattern so the implementation code is bit harder to read.
- *         - valgrind may generate a warning that the allocated block is lost (not accessible).
- */
-class ByteBlob {
-protected:
-	/** header of the allocated memory block */
-	struct BlobHeader {
-		size_t items;     ///< actual blob size in bytes
-		size_t capacity;  ///< maximum (allocated) size in bytes
-	};
-
-	/** type used as class member */
-	union {
-		byte       *data;    ///< ptr to the first byte of data
-		BlobHeader *header;  ///< ptr just after the BlobHeader holding items and capacity
-	};
-
-private:
-	/**
-	 * Just to silence an unsilencable GCC 4.4+ warning
-	 * Note: This cannot be 'const' as we do a lot of 'hdrEmpty[0]->items += 0;' and 'hdrEmpty[0]->capacity += 0;'
-	 *       after const_casting.
-	 */
-	static BlobHeader hdrEmpty[];
-
-public:
-	static const size_t tail_reserve = 4; ///< four extra bytes will be always allocated and zeroed at the end
-	static const size_t header_size = sizeof(BlobHeader);
-
-	/** default constructor - initializes empty blob */
-	inline ByteBlob()
-	{
-		InitEmpty();
-	}
-
-	/** copy constructor */
-	inline ByteBlob(const ByteBlob &src)
-	{
-		InitEmpty();
-		AppendRaw(src);
-	}
-
-	/** move constructor - take ownership of blob data */
-	inline ByteBlob(BlobHeader * const & src)
-	{
-		assert(src != nullptr);
-		header = src;
-		*const_cast<BlobHeader**>(&src) = nullptr;
-	}
-
-	/** destructor */
-	inline ~ByteBlob()
-	{
-		Free();
-	}
-
-protected:
-	/** all allocation should happen here */
-	static inline BlobHeader *RawAlloc(size_t num_bytes)
-	{
-		return (BlobHeader*)MallocT<byte>(num_bytes);
-	}
-
-	/**
-	 * Return header pointer to the static BlobHeader with
-	 * both items and capacity containing zero
-	 */
-	static inline BlobHeader *Zero()
-	{
-		return const_cast<BlobHeader *>(&ByteBlob::hdrEmpty[1]);
-	}
-
-	/** simple allocation policy - can be optimized later */
-	static inline size_t AllocPolicy(size_t min_alloc)
-	{
-		if (min_alloc < (1 << 9)) {
-			if (min_alloc < (1 << 5)) return (1 << 5);
-			return (min_alloc < (1 << 7)) ? (1 << 7) : (1 << 9);
-		}
-		if (min_alloc < (1 << 15)) {
-			if (min_alloc < (1 << 11)) return (1 << 11);
-			return (min_alloc < (1 << 13)) ? (1 << 13) : (1 << 15);
-		}
-		if (min_alloc < (1 << 20)) {
-			if (min_alloc < (1 << 17)) return (1 << 17);
-			return (min_alloc < (1 << 19)) ? (1 << 19) : (1 << 20);
-		}
-		min_alloc = (min_alloc | ((1 << 20) - 1)) + 1;
-		return min_alloc;
-	}
-
-	/** all deallocations should happen here */
-	static inline void RawFree(BlobHeader *p)
-	{
-		/* Just to silence an unsilencable GCC 4.4+ warning. */
-		assert(p != ByteBlob::hdrEmpty);
-
-		/* In case GCC warns about the following, see GCC's PR38509 why it is bogus. */
-		free(p);
-	}
-
-	/** initialize the empty blob */
-	inline void InitEmpty()
-	{
-		header = Zero();
-	}
-
-	/** initialize blob by attaching it to the given header followed by data */
-	inline void Init(BlobHeader *src)
-	{
-		header = &src[1];
-	}
-
-	/** blob header accessor - use it rather than using the pointer arithmetic directly - non-const version */
-	inline BlobHeader& Hdr()
-	{
-		return *(header - 1);
-	}
-
-	/** blob header accessor - use it rather than using the pointer arithmetic directly - const version */
-	inline const BlobHeader& Hdr() const
-	{
-		return *(header - 1);
-	}
-
-	/** return reference to the actual blob size - used when the size needs to be modified */
-	inline size_t& LengthRef()
-	{
-		return Hdr().items;
-	}
-
-public:
-	/** return true if blob doesn't contain valid data */
-	inline bool IsEmpty() const
-	{
-		return Length() == 0;
-	}
-
-	/** return the number of valid data bytes in the blob */
-	inline size_t Length() const
-	{
-		return Hdr().items;
-	}
-
-	/** return the current blob capacity in bytes */
-	inline size_t Capacity() const
-	{
-		return Hdr().capacity;
-	}
-
-	/** return pointer to the first byte of data - non-const version */
-	inline byte *Begin()
-	{
-		return data;
-	}
-
-	/** return pointer to the first byte of data - const version */
-	inline const byte *Begin() const
-	{
-		return data;
-	}
-
-	/** invalidate blob's data - doesn't free buffer */
-	inline void Clear()
-	{
-		LengthRef() = 0;
-	}
-
-	/** free the blob's memory */
-	inline void Free()
-	{
-		if (Capacity() > 0) {
-			RawFree(&Hdr());
-			InitEmpty();
-		}
-	}
-
-	/** append new bytes at the end of existing data bytes - reallocates if necessary */
-	inline void AppendRaw(const void *p, size_t num_bytes)
-	{
-		assert(p != nullptr);
-		if (num_bytes > 0) {
-			memcpy(Append(num_bytes), p, num_bytes);
-		}
-	}
-
-	/** append bytes from given source blob to the end of existing data bytes - reallocates if necessary */
-	inline void AppendRaw(const ByteBlob& src)
-	{
-		if (!src.IsEmpty()) {
-			memcpy(Append(src.Length()), src.Begin(), src.Length());
-		}
-	}
-
-	/**
-	 * Reallocate if there is no free space for num_bytes bytes.
-	 *  @return pointer to the new data to be added
-	 */
-	inline byte *Prepare(size_t num_bytes)
-	{
-		size_t new_size = Length() + num_bytes;
-		if (new_size > Capacity()) SmartAlloc(new_size);
-		return data + Length();
-	}
-
-	/**
-	 * Increase Length() by num_bytes.
-	 *  @return pointer to the new data added
-	 */
-	inline byte *Append(size_t num_bytes)
-	{
-		byte *pNewData = Prepare(num_bytes);
-		LengthRef() += num_bytes;
-		return pNewData;
-	}
-
-	/** reallocate blob data if needed */
-	void SmartAlloc(size_t new_size)
-	{
-		if (Capacity() >= new_size) return;
-		/* calculate minimum block size we need to allocate
-		 * and ask allocation policy for some reasonable block size */
-		assert(new_size < SIZE_MAX - header_size - tail_reserve);
-		new_size = AllocPolicy(header_size + new_size + tail_reserve);
-
-		/* allocate new block and setup header */
-		BlobHeader *tmp = RawAlloc(new_size);
-		tmp->items = Length();
-		tmp->capacity = new_size - (header_size + tail_reserve);
-
-		/* copy existing data */
-		if (tmp->items != 0) {
-			memcpy(tmp + 1, data, tmp->items);
-		}
-
-		/* replace our block with new one */
-		if (Capacity() > 0) {
-			RawFree(&Hdr());
-		}
-		Init(tmp);
-	}
-
-	/** fixing the four bytes at the end of blob data - useful when blob is used to hold string */
-	inline void FixTail() const
-	{
-		if (Capacity() > 0) {
-			byte *p = &data[Length()];
-			for (uint i = 0; i < tail_reserve; i++) {
-				p[i] = 0;
-			}
-		}
-	}
-};
-
-/**
- * Blob - simple dynamic T array. T (template argument) is a placeholder for any type.
- *  T can be any integral type, pointer, or structure. Using Blob instead of just plain C array
- *  simplifies the resource management in several ways:
- *  1. When adding new item(s) it automatically grows capacity if needed.
- *  2. When variable of type Blob comes out of scope it automatically frees the data buffer.
- *  3. Takes care about the actual data size (number of used items).
- *  4. Dynamically constructs only used items (as opposite of static array which constructs all items)
- */
-template <typename T>
-class CBlobT : public ByteBlob {
-	/* make template arguments public: */
-public:
-	typedef ByteBlob base;
-
-	static const size_t type_size = sizeof(T);
-
-	struct OnTransfer {
-		typename base::BlobHeader *header;
-
-		OnTransfer(const OnTransfer& src) : header(src.header)
-		{
-			assert(src.header != nullptr);
-			*const_cast<typename base::BlobHeader**>(&src.header) = nullptr;
-		}
-
-		OnTransfer(CBlobT& src) : header(src.header)
-		{
-			src.InitEmpty();
-		}
-
-		~OnTransfer()
-		{
-			assert(header == nullptr);
-		}
-	};
-
-	/** Default constructor - makes new Blob ready to accept any data */
-	inline CBlobT()
-		: base()
-	{}
-
-	/** Take ownership constructor */
-	inline CBlobT(const OnTransfer& ot)
-		: base(ot.header)
-	{}
-
-	/** Destructor - ensures that allocated memory (if any) is freed */
-	inline ~CBlobT()
-	{
-		Free();
-	}
-
-	/** Check the validity of item index (only in debug mode) */
-	inline void CheckIdx(size_t index) const
-	{
-		assert(index < Size());
-	}
-
-	/** Return pointer to the first data item - non-const version */
-	inline T *Data()
-	{
-		return (T*)base::Begin();
-	}
-
-	/** Return pointer to the first data item - const version */
-	inline const T *Data() const
-	{
-		return (const T*)base::Begin();
-	}
-
-	/** Return pointer to the index-th data item - non-const version */
-	inline T *Data(size_t index)
-	{
-		CheckIdx(index);
-		return (Data() + index);
-	}
-
-	/** Return pointer to the index-th data item - const version */
-	inline const T *Data(size_t index) const
-	{
-		CheckIdx(index);
-		return (Data() + index);
-	}
-
-	/** Return number of items in the Blob */
-	inline size_t Size() const
-	{
-		return (base::Length() / type_size);
-	}
-
-	/** Return total number of items that can fit in the Blob without buffer reallocation */
-	inline size_t MaxSize() const
-	{
-		return (base::Capacity() / type_size);
-	}
-
-	/** Return number of additional items that can fit in the Blob without buffer reallocation */
-	inline size_t GetReserve() const
-	{
-		return ((base::Capacity() - base::Length()) / type_size);
-	}
-
-	/** Grow number of data items in Blob by given number - doesn't construct items */
-	inline T *GrowSizeNC(size_t num_items)
-	{
-		return (T*)base::Append(num_items * type_size);
-	}
-
-	/**
-	 * Ensures that given number of items can be added to the end of Blob. Returns pointer to the
-	 *  first free (unused) item
-	 */
-	inline T *MakeFreeSpace(size_t num_items)
-	{
-		return (T*)base::Prepare(num_items * type_size);
-	}
-
-	inline OnTransfer Transfer()
-	{
-		return OnTransfer(*this);
-	}
-};
-
-
-#endif /* BLOB_HPP */
diff --git a/src/misc/dbg_helpers.cpp b/src/misc/dbg_helpers.cpp
index 85d6ea1b9..b197e9a8a 100644
--- a/src/misc/dbg_helpers.cpp
+++ b/src/misc/dbg_helpers.cpp
@@ -10,7 +10,6 @@
 #include "../stdafx.h"
 #include "../rail_map.h"
 #include "dbg_helpers.h"
-#include "blob.hpp"
 
 #include <sstream>
 #include <iomanip>
@@ -169,6 +168,3 @@ void DumpTarget::EndStruct()
 	/* remove current struct name from the stack */
 	m_cur_struct.pop();
 }
-
-/** Just to silence an unsilencable GCC 4.4+ warning */
-/* static */ ByteBlob::BlobHeader ByteBlob::hdrEmpty[] = {{0, 0}, {0, 0}};