author | truelight |
Fri, 04 Feb 2005 13:23:29 +0000 | |
changeset 1279 | bc761aad52b3 |
parent 1259 | 8d8515e3da29 |
child 1299 | 39c06aba09aa |
permissions | -rw-r--r-- |
1259
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
1 |
#include "stdafx.h" |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
2 |
#include "ttd.h" |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
3 |
#include "pool.h" |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
4 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
5 |
/** |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
6 |
* 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
|
7 |
*/ |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
8 |
void CleanPool(MemoryPool *pool) |
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 |
uint i; |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
11 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
12 |
DEBUG(misc, 4)("[Pool] (%s) Cleaing pool..", pool->name); |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
13 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
14 |
/* Free all blocks */ |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
15 |
for (i = 0; i < pool->current_blocks; i++) |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
16 |
free(pool->blocks[i]); |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
17 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
18 |
/* Free the block itself */ |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
19 |
free(pool->blocks); |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
20 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
21 |
/* Clear up some critical data */ |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
22 |
pool->total_items = 0; |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
23 |
pool->current_blocks = 0; |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
24 |
pool->blocks = NULL; |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
25 |
} |
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 |
/** |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
28 |
* 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
|
29 |
* 1 block too it |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
30 |
* |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
31 |
* @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
|
32 |
*/ |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
33 |
bool AddBlockToPool(MemoryPool *pool) |
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 |
/* Is the pool at his max? */ |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
36 |
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
|
37 |
return false; |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
38 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
39 |
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
|
40 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
41 |
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); |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
42 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
43 |
/* Increase the poolsize */ |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
44 |
pool->blocks = realloc(pool->blocks, sizeof(pool->blocks[0]) * (pool->current_blocks + 1)); |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
45 |
if (pool->blocks == NULL) |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
46 |
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
|
47 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
48 |
/* Allocate memory to the new block item */ |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
49 |
pool->blocks[pool->current_blocks] = malloc(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
|
50 |
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
|
51 |
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
|
52 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
53 |
/* 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
|
54 |
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
|
55 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
56 |
/* 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
|
57 |
if (pool->new_block_proc != NULL) |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
58 |
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
|
59 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
60 |
/* We have a new block */ |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
61 |
pool->current_blocks++; |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
62 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
63 |
return true; |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
64 |
} |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
65 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
66 |
/** |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
67 |
* 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
|
68 |
* |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
69 |
* @return Returns false if adding failed |
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 |
bool AddBlockIfNeeded(MemoryPool *pool, uint index) |
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 |
while (index >= pool->total_items) { |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
74 |
if (!AddBlockToPool(pool)) |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
75 |
return false; |
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 |
|
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
78 |
return true; |
8d8515e3da29
(svn r1763) -Add: pool.c / pool.h: generalized routines for dynamic arrays (MemoryPools)
truelight
parents:
diff
changeset
|
79 |
} |