dmlib: src/dmgrowbuf.c annotate

annotate src/dmgrowbuf.c @ 1531:260bf529a8f2

Implement current len/offs push/pop for growbuf.

author	Matti Hamalainen <ccr@tnsp.org>
date	Sat, 12 May 2018 03:23:32 +0300
parents	94eb6a8a7d56
children	064fc2e3ee64

rev	line source
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	1 /*
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	2 * DMLib
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	3 * -- Growable buffer implementation
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	4 * Programmed and designed by Matti 'ccr' Hamalainen
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	5 * (C) Copyright 2018 Tecnic Software productions (TNSP)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	6 */
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	7 #include "dmgrowbuf.h"
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	8
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	9
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	10 int dmGrowBufInit(DMGrowBuf *buf)
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	11 {
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	12 if (buf == NULL)
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	13 return DMERR_NULLPTR;
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	14
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	15 memset(buf, 0, sizeof(DMGrowBuf));
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	16
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	17 return DMERR_OK;
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	18 }
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	19
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	20
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	21 int dmGrowBufAlloc(DMGrowBuf *buf, const size_t initial, const size_t mingrow)
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	22 {
1459 1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	23 int res;
1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	24
1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	25 if ((res = dmGrowBufInit(buf)) != DMERR_OK)
1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	26 return res;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	27
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	28 buf->len = 0;
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	29 buf->offs = 0;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	30 buf->size = initial;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	31 buf->mingrow = mingrow;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	32 buf->allocated = FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	33
1509 15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	34 // Allocate the data
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	35 if ((buf->adata = buf->data = dmMalloc0(initial)) == NULL)
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	36 return DMERR_MALLOC;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	37
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	38 return DMERR_OK;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	39 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	40
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	41
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	42 int dmGrowBufNew(DMGrowBuf **pbuf, const size_t initial, const size_t mingrow)
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	43 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	44 int res;
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	45 if (pbuf == NULL)
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	46 return DMERR_NULLPTR;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	47
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	48 if ((*pbuf = dmMalloc0(sizeof(DMGrowBuf))) == NULL)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	49 return DMERR_MALLOC;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	50
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	51 if ((res = dmGrowBufAlloc(*pbuf, initial, mingrow)) != DMERR_OK)
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	52 {
1459 1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	53 // The "allocated" flag has not yet been set
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	54 dmGrowBufFree(*pbuf);
1459 1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	55
1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	56 // .. thus free the allocated struct here
1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	57 dmFreeR(pbuf);
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	58 return res;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	59 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	60
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	61 (*pbuf)->allocated = TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	62 return res;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	63 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	64
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	65
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	66 void dmGrowBufFree(DMGrowBuf *buf)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	67 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	68 if (buf != NULL)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	69 {
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	70 dmFreeR(&buf->adata);
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	71 buf->data = NULL;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	72
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	73 if (buf->allocated)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	74 dmFree(buf);
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	75 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	76 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	77
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	78
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	79 void dmGrowBufPush(DMGrowBuf *buf)
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	80 {
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	81 if (buf != NULL && buf->adata != NULL)
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	82 {
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	83 buf->stack[buf->nstack].offs = buf->offs;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	84 buf->stack[buf->nstack].len = buf->len;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	85 buf->nstack++;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	86
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	87 buf->offs = buf->len;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	88 buf->data = buf->adata + buf->offs;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	89 buf->len = 0;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	90 }
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	91 }
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	92
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	93
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	94 void dmGrowBufPop(DMGrowBuf *buf)
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	95 {
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	96 if (buf != NULL && buf->adata != NULL && buf->nstack > 0)
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	97 {
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	98 buf->nstack--;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	99 buf->offs = buf->stack[buf->nstack].offs;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	100 buf->len += buf->stack[buf->nstack].len;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	101
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	102 buf->data = buf->adata + buf->offs;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	103 }
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	104 }
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	105
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	106
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	107 static BOOL dmGrowBufRealloc(DMGrowBuf *buf, const size_t nsize, const BOOL clear)
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	108 {
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	109 if ((buf->adata = dmRealloc(buf->adata, nsize)) == NULL)
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	110 return FALSE;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	111
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	112 if (clear)
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	113 memset(buf->adata + buf->size, 0, nsize - buf->size);
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	114
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	115 buf->data = buf->adata + buf->offs;
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	116 buf->size = nsize;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	117
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	118 return TRUE;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	119 }
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	120
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	121
1509 15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	122 //
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	123 // Grow the buffer by "amount" bytes, but at least by buf->mingrow,
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	124 // if there is not enough space for at least that amount compared to
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	125 // current buffer "len".
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	126 //
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	127 BOOL dmGrowBufGrow(DMGrowBuf *buf, const size_t amount)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	128 {
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	129 if (buf->adata == NULL \|\| buf->offs + buf->len + amount >= buf->size)
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	130 {
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	131 size_t grow = (amount > buf->mingrow) ? amount : buf->mingrow;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	132 if (!dmGrowBufRealloc(buf, buf->offs + buf->len + grow, TRUE))
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	133 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	134 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	135
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	136 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	137 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	138
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	139
1509 15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	140 //
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	141 // Grow the buffer if "nsize" is larger than the current buffer size.
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	142 // Buffer is enlarged to nsize + mingrow.
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	143 //
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	144 BOOL dmGrowBufCheckGrow(DMGrowBuf *buf, const size_t nsize)
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	145 {
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	146 if (buf->adata == NULL \|\| buf->offs + nsize > buf->size)
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	147 {
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	148 if (!dmGrowBufRealloc(buf, buf->offs + nsize + buf->mingrow, TRUE))
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	149 return FALSE;
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	150 }
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	151
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	152 return TRUE;
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	153 }
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	154
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	155
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	156 int dmGrowBufResize(DMGrowBuf *buf)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	157 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	158 if (buf == NULL)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	159 return DMERR_NULLPTR;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	160
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	161 buf->size = buf->len;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	162 if (buf->len == 0)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	163 return DMERR_OK;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	164
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	165 if (!dmGrowBufRealloc(buf, buf->size, FALSE))
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	166 return DMERR_MALLOC;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	167
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	168 return DMERR_OK;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	169 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	170
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	171
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	172 BOOL dmGrowBufPutU8(DMGrowBuf *buf, const Uint8 value)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	173 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	174 if (!dmGrowBufGrow(buf, sizeof(Uint8)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	175 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	176
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	177 buf->data[buf->len++] = value;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	178
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	179 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	180 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	181
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	182
1477 e8fe529f4341 Rename one of the growbuf functions. Matti Hamalainen <ccr@tnsp.org> parents: 1459 diff changeset	183 BOOL dmGrowBufPut(DMGrowBuf buf, const void str, const size_t len)
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	184 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	185 if (str == NULL)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	186 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	187
1484 a0166c4050be Fix dmGrowBufPut() to not include extra byte. Matti Hamalainen <ccr@tnsp.org> parents: 1477 diff changeset	188 if (!dmGrowBufGrow(buf, len))
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	189 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	190
1484 a0166c4050be Fix dmGrowBufPut() to not include extra byte. Matti Hamalainen <ccr@tnsp.org> parents: 1477 diff changeset	191 memcpy(buf->data + buf->len, str, len);
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	192 buf->len += len;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	193
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	194 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	195 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	196
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	197
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	198 BOOL dmGrowBufPutU16BE(DMGrowBuf *buf, const Uint16 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	199 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	200 if (!dmGrowBufGrow(buf, sizeof(Uint16)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	201 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	202
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	203 buf->data[buf->len++] = (val >> 8) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	204 buf->data[buf->len++] = val & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	205
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	206 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	207 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	208
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	209
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	210 BOOL dmGrowBufPutU16LE(DMGrowBuf *buf, const Uint16 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	211 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	212 if (!dmGrowBufGrow(buf, sizeof(Uint16)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	213 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	214
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	215 buf->data[buf->len++] = val & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	216 buf->data[buf->len++] = (val >> 8) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	217
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	218 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	219 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	220
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	221
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	222 BOOL dmGrowBufPutU32BE(DMGrowBuf *buf, const Uint32 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	223 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	224 if (!dmGrowBufGrow(buf, sizeof(Uint32)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	225 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	226
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	227 buf->data[buf->len++] = (val >> 24) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	228 buf->data[buf->len++] = (val >> 16) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	229 buf->data[buf->len++] = (val >> 8) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	230 buf->data[buf->len++] = val & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	231
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	232 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	233 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	234
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	235
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	236 BOOL dmGrowBufPutU32LE(DMGrowBuf *buf, const Uint32 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	237 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	238 if (!dmGrowBufGrow(buf, sizeof(Uint32)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	239 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	240
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	241 buf->data[buf->len++] = val & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	242 buf->data[buf->len++] = (val >> 8) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	243 buf->data[buf->len++] = (val >> 16) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	244 buf->data[buf->len++] = (val >> 24) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	245
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	246 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	247 }

Mercurial > hg > dmlib

annotate src/dmgrowbuf.c @ 1531:260bf529a8f2