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Location: cpp/openttd-patchpack/source/src/oldpool.h - annotation
r5686:efbdee22bd39
3.0 KiB
text/x-c
(svn r8147) -Fix: [autoreplace] v->leave_depot_instantly was not always reset correctly
While it's not certain if this would have any serious sideeffects (or any at all), it's reset when intended now
While it's not certain if this would have any serious sideeffects (or any at all), it's reset when intended now
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#ifndef OLDPOOL_H
#define OLDPOOL_H
typedef struct OldMemoryPool OldMemoryPool;
/* The function that is called after a new block is added
start_item is the first item of the new made block */
typedef void OldMemoryPoolNewBlock(uint start_item);
/* The function that is called before a block is cleaned up */
typedef void OldMemoryPoolCleanBlock(uint start_item, uint end_item);
/**
* Stuff for dynamic vehicles. Use the wrappers to access the OldMemoryPool
* please try to avoid manual calls!
*/
struct OldMemoryPool {
const char* name; ///< Name of the pool (just for debugging)
uint max_blocks; ///< The max amount of blocks this pool can have
uint block_size_bits; ///< The size of each block in bits
uint item_size; ///< How many bytes one block is
/// Pointer to a function that is called after a new block is added
OldMemoryPoolNewBlock *new_block_proc;
/// Pointer to a function that is called to clean a block
OldMemoryPoolCleanBlock *clean_block_proc;
uint current_blocks; ///< How many blocks we have in our pool
uint total_items; ///< How many items we now have in this pool
byte **blocks; ///< An array of blocks (one block hold all the items)
};
/**
* Those are the wrappers:
* CleanPool cleans the pool up, but you can use AddBlockToPool directly again
* (no need to call CreatePool!)
* AddBlockToPool adds 1 more block to the pool. Returns false if there is no
* more room
*/
void CleanPool(OldMemoryPool *array);
bool AddBlockToPool(OldMemoryPool *array);
/**
* Adds blocks to the pool if needed (and possible) till index fits inside the pool
*
* @return Returns false if adding failed
*/
bool AddBlockIfNeeded(OldMemoryPool *array, uint index);
#define OLD_POOL_ENUM(name, type, block_size_bits, max_blocks) \
enum { \
name##_POOL_BLOCK_SIZE_BITS = block_size_bits, \
name##_POOL_MAX_BLOCKS = max_blocks \
};
#define OLD_POOL_ACCESSORS(name, type) \
static inline type* Get##name(uint index) \
{ \
assert(index < _##name##_pool.total_items); \
return (type*)( \
_##name##_pool.blocks[index >> name##_POOL_BLOCK_SIZE_BITS] + \
(index & ((1 << name##_POOL_BLOCK_SIZE_BITS) - 1)) * sizeof(type) \
); \
} \
\
static inline uint Get##name##PoolSize(void) \
{ \
return _##name##_pool.total_items; \
}
#define DECLARE_OLD_POOL(name, type, block_size_bits, max_blocks) \
OLD_POOL_ENUM(name, type, block_size_bits, max_blocks) \
extern OldMemoryPool _##name##_pool; \
OLD_POOL_ACCESSORS(name, type)
#define DEFINE_OLD_POOL(name, type, new_block_proc, clean_block_proc) \
OldMemoryPool _##name##_pool = { \
#name, name##_POOL_MAX_BLOCKS, name##_POOL_BLOCK_SIZE_BITS, sizeof(type), \
new_block_proc, clean_block_proc, \
0, 0, NULL \
};
#define STATIC_OLD_POOL(name, type, block_size_bits, max_blocks, new_block_proc, clean_block_proc) \
OLD_POOL_ENUM(name, type, block_size_bits, max_blocks) \
static DEFINE_OLD_POOL(name, type, new_block_proc, clean_block_proc) \
OLD_POOL_ACCESSORS(name, type)
#endif /* OLDPOOL_H */
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