src/oldpool.cpp
author maedhros
Tue, 06 Mar 2007 19:12:56 +0000
changeset 6227 e38177bd77c4
parent 5609 dc6a58930ba4
child 6351 8d0b6cce8d6d
permissions -rw-r--r--
(svn r9029) -Fix (r7326): Only call the gradual loading amount callback if the bit for it is set in the vehicle's callbackmask.
2186
db48cf29b983 (svn r2701) Insert Id tags into all source files
tron
parents: 2163
diff changeset
     1
/* $Id$ */
db48cf29b983 (svn r2701) Insert Id tags into all source files
tron
parents: 2163
diff changeset
     2
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
     3
#include "stdafx.h"
1891
862800791170 (svn r2397) - CodeChange: rename all "ttd" files to "openttd" files.
Darkvater
parents: 1833
diff changeset
     4
#include "openttd.h"
1299
39c06aba09aa (svn r1803) Move debugging stuff into files of it's own
tron
parents: 1259
diff changeset
     5
#include "debug.h"
2163
b17b313113a0 (svn r2673) Include functions.h directly, not globally via openttd.h
tron
parents: 1891
diff changeset
     6
#include "functions.h"
5216
8bd14ee39af2 (svn r7331) - Codechange: Rename all memory pool macro's and types to "old pool", so the new pool implementation can be committed alongside it.
matthijs
parents: 3585
diff changeset
     7
#include "oldpool.h"
5587
167d9a91ef02 (svn r8038) -Merge: the cpp branch. Effort of KUDr, Celestar, glx, Smoovius, stillunknown and pv2b.
rubidium
parents: 5584
diff changeset
     8
#include "helpers.hpp"
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
     9
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    10
/**
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    11
 * Clean a pool in a safe way (does free all blocks)
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    12
 */
5216
8bd14ee39af2 (svn r7331) - Codechange: Rename all memory pool macro's and types to "old pool", so the new pool implementation can be committed alongside it.
matthijs
parents: 3585
diff changeset
    13
void CleanPool(OldMemoryPool *pool)
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    14
{
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    15
	uint i;
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    16
5380
8ea58542b6e0 (svn r7565) -Codechange: Rework DEBUG functionality. Look for appropiate debugging levels to
Darkvater
parents: 5216
diff changeset
    17
	DEBUG(misc, 4, "[Pool] (%s) cleaning pool..", pool->name);
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    18
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    19
	/* Free all blocks */
3585
43461f26b729 (svn r4471) - Pools: Add a facility for calling a custom function during pool block clean up.
peter1138
parents: 2186
diff changeset
    20
	for (i = 0; i < pool->current_blocks; i++) {
43461f26b729 (svn r4471) - Pools: Add a facility for calling a custom function during pool block clean up.
peter1138
parents: 2186
diff changeset
    21
		if (pool->clean_block_proc != NULL) {
43461f26b729 (svn r4471) - Pools: Add a facility for calling a custom function during pool block clean up.
peter1138
parents: 2186
diff changeset
    22
			pool->clean_block_proc(i * (1 << pool->block_size_bits), (i + 1) * (1 << pool->block_size_bits) - 1);
43461f26b729 (svn r4471) - Pools: Add a facility for calling a custom function during pool block clean up.
peter1138
parents: 2186
diff changeset
    23
		}
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    24
		free(pool->blocks[i]);
3585
43461f26b729 (svn r4471) - Pools: Add a facility for calling a custom function during pool block clean up.
peter1138
parents: 2186
diff changeset
    25
	}
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    26
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    27
	/* Free the block itself */
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    28
	free(pool->blocks);
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    29
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    30
	/* Clear up some critical data */
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    31
	pool->total_items = 0;
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    32
	pool->current_blocks = 0;
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    33
	pool->blocks = NULL;
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    34
}
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    35
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    36
/**
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    37
 * This function tries to increase the size of array by adding
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    38
 *  1 block too it
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    39
 *
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    40
 * @return Returns false if the pool could not be increased
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    41
 */
5216
8bd14ee39af2 (svn r7331) - Codechange: Rename all memory pool macro's and types to "old pool", so the new pool implementation can be committed alongside it.
matthijs
parents: 3585
diff changeset
    42
bool AddBlockToPool(OldMemoryPool *pool)
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    43
{
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    44
	/* Is the pool at his max? */
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    45
	if (pool->max_blocks == pool->current_blocks)
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    46
		return false;
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    47
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    48
	pool->total_items = (pool->current_blocks + 1) * (1 << pool->block_size_bits);
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    49
5380
8ea58542b6e0 (svn r7565) -Codechange: Rework DEBUG functionality. Look for appropiate debugging levels to
Darkvater
parents: 5216
diff changeset
    50
	DEBUG(misc, 4, "[Pool] (%s) increasing size of pool to %d items (%d bytes)", pool->name, pool->total_items, pool->total_items * pool->item_size);
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    51
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    52
	/* Increase the poolsize */
5609
dc6a58930ba4 (svn r8066) - Codechange: MallocT(), CallocT(), ReallocT() now return the pointer to allocated memory instead of modifying the pointer given as parameter
KUDr
parents: 5587
diff changeset
    53
	pool->blocks = ReallocT(pool->blocks, pool->current_blocks + 1);
5380
8ea58542b6e0 (svn r7565) -Codechange: Rework DEBUG functionality. Look for appropiate debugging levels to
Darkvater
parents: 5216
diff changeset
    54
	if (pool->blocks == NULL) error("Pool: (%s) could not allocate memory for blocks", pool->name);
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    55
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    56
	/* Allocate memory to the new block item */
5609
dc6a58930ba4 (svn r8066) - Codechange: MallocT(), CallocT(), ReallocT() now return the pointer to allocated memory instead of modifying the pointer given as parameter
KUDr
parents: 5587
diff changeset
    57
	pool->blocks[pool->current_blocks] = MallocT<byte>(pool->item_size * (1 << pool->block_size_bits));
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    58
	if (pool->blocks[pool->current_blocks] == NULL)
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    59
		error("Pool: (%s) could not allocate memory for blocks", pool->name);
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    60
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    61
	/* Clean the content of the new block */
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    62
	memset(pool->blocks[pool->current_blocks], 0, pool->item_size * (1 << pool->block_size_bits));
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    63
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    64
	/* Call a custom function if defined (e.g. to fill indexes) */
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    65
	if (pool->new_block_proc != NULL)
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    66
		pool->new_block_proc(pool->current_blocks * (1 << pool->block_size_bits));
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    67
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    68
	/* We have a new block */
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    69
	pool->current_blocks++;
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    70
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    71
	return true;
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    72
}
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    73
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    74
/**
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    75
 * Adds blocks to the pool if needed (and possible) till index fits inside the pool
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    76
 *
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    77
 * @return Returns false if adding failed
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    78
 */
5216
8bd14ee39af2 (svn r7331) - Codechange: Rename all memory pool macro's and types to "old pool", so the new pool implementation can be committed alongside it.
matthijs
parents: 3585
diff changeset
    79
bool AddBlockIfNeeded(OldMemoryPool *pool, uint index)
1259
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    80
{
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    81
	while (index >= pool->total_items) {
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    82
		if (!AddBlockToPool(pool))
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    83
			return false;
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    84
	}
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    85
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    86
	return true;
8d8515e3da29 (svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff changeset
    87
}