dmlib: src/dmgrowbuf.c annotate

annotate src/dmgrowbuf.c @ 1536:064fc2e3ee64

Add compile-time debugging information to DMGrowBuf.

author	Matti Hamalainen <ccr@tnsp.org>
date	Sat, 12 May 2018 04:12:46 +0300
parents	260bf529a8f2
children	383ca5f6e78b

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
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	9 //#define DM_GROWBUF_DEBUG 1
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	10
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	11 #ifdef DM_GROWBUF_DEBUG
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	12 # define DM_DBG(...) do { fprintf(stderr, __VA_ARGS__); } while (0)
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	13 #else
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	14 # define DM_DBG(...) do { } while (0)
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	15 #endif
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	16
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	17
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	18 int dmGrowBufInit(DMGrowBuf *buf)
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	19 {
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	20 DM_DBG("dmGrowBufInit(%p)\n", buf);
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	21 if (buf == NULL)
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	22 return DMERR_NULLPTR;
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	23
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	24 memset(buf, 0, sizeof(DMGrowBuf));
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	25
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	26 return DMERR_OK;
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	27 }
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	28
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	29
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	30 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	31 {
1459 1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	32 int res;
1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	33
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	34 DM_DBG("dmGrowBufAlloc(%p, %" DM_PRIu_SIZE_T ", %" DM_PRIu_SIZE_T ")\n", buf, initial, mingrow);
1459 1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	35 if ((res = dmGrowBufInit(buf)) != DMERR_OK)
1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	36 return res;
1454 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 buf->len = 0;
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	39 buf->offs = 0;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	40 buf->size = initial;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	41 buf->mingrow = mingrow;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	42 buf->allocated = FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	43
1509 15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	44 // Allocate the data
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	45 if ((buf->adata = buf->data = dmMalloc0(initial)) == NULL)
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	46 return DMERR_MALLOC;
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 return DMERR_OK;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	49 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	50
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	51
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	52 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	53 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	54 int res;
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	55 if (pbuf == NULL)
b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	56 return DMERR_NULLPTR;
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	57
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	58 DM_DBG("dmGrowBufNew(%p, %" DM_PRIu_SIZE_T ", %" DM_PRIu_SIZE_T ")\n", pbuf, initial, mingrow);
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	59 if ((*pbuf = dmMalloc0(sizeof(DMGrowBuf))) == NULL)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	60 return DMERR_MALLOC;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	61
1458 b2dd6a72d162 Adjust semantics of growbuf and add new function. Matti Hamalainen <ccr@tnsp.org> parents: 1455 diff changeset	62 if ((res = dmGrowBufAlloc(*pbuf, initial, mingrow)) != DMERR_OK)
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	63 {
1459 1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	64 // The "allocated" flag has not yet been set
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	65 dmGrowBufFree(*pbuf);
1459 1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	66
1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	67 // .. thus free the allocated struct here
1155f4bc4afc More work on growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1458 diff changeset	68 dmFreeR(pbuf);
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	69 return res;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	70 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	71
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	72 (*pbuf)->allocated = TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	73 return res;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	74 }
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 void dmGrowBufFree(DMGrowBuf *buf)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	78 {
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	79 DM_DBG("dmGrowBufFree(%p)\n", buf);
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	80 if (buf != NULL)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	81 {
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	82 DM_DBG(
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	83 " buf->adata = %p\n"
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	84 " buf->data = %p\n"
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	85 " buf->allocated = %s\n",
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	86 buf->adata, buf->data, buf->allocated ? "YES" : "NO");
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	87
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	88 dmFreeR(&buf->adata);
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	89 buf->data = NULL;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	90
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	91 if (buf->allocated)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	92 dmFree(buf);
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	93 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	94 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	95
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	96
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	97 void dmGrowBufPush(DMGrowBuf *buf)
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	98 {
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	99 if (buf != NULL && buf->adata != NULL)
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	100 {
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	101 DM_DBG("dmGrowBufPush(%p): size=%" DM_PRIu_SIZE_T "\n"
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	102 " nstack=%d [offs=%" DM_PRIu_SIZE_T ", len=%" DM_PRIu_SIZE_T "]\n", buf, buf->size, buf->nstack, buf->offs, buf->len);
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	103
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	104 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	105 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	106 buf->nstack++;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	107
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	108 buf->offs = buf->len;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	109 buf->data = buf->adata + buf->offs;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	110 buf->len = 0;
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	111
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	112 DM_DBG(
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	113 " nstack=%d [offs=%" DM_PRIu_SIZE_T ", len=%" DM_PRIu_SIZE_T "]\n", buf->nstack, buf->offs, buf->len);
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	114 }
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	115 else
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	116 DM_DBG("dmGrowBufPush(%p)\n", buf);
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	117 }
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	118
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	119
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	120 void dmGrowBufPop(DMGrowBuf *buf)
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	121 {
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	122 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	123 {
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	124 DM_DBG("dmGrowBufPop(%p): size=%" DM_PRIu_SIZE_T "\n"
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	125 " nstack=%d [offs=%" DM_PRIu_SIZE_T ", len=%" DM_PRIu_SIZE_T "]\n", buf, buf->size, buf->nstack, buf->offs, buf->len);
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	126
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	127 buf->nstack--;
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	128 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	129 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	130
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	131 buf->data = buf->adata + buf->offs;
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	132
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	133 DM_DBG(
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	134 " nstack=%d [offs=%" DM_PRIu_SIZE_T ", len=%" DM_PRIu_SIZE_T "]\n", buf->nstack, buf->offs, buf->len);
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	135
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	136 }
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	137 else
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	138 DM_DBG("dmGrowBufPop(%p)\n", buf);
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	139 }
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	140
260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	141
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	142 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	143 {
1536 064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	144 DM_DBG("dmGrowBufRealloc(%p): size=%" DM_PRIu_SIZE_T "\n"
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	145 " nstack=%d [offs=%" DM_PRIu_SIZE_T ", len=%" DM_PRIu_SIZE_T "]\n",
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	146 buf, buf->size, buf->nstack, buf->offs, buf->len);
064fc2e3ee64 Add compile-time debugging information to DMGrowBuf. Matti Hamalainen <ccr@tnsp.org> parents: 1531 diff changeset	147
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	148 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	149 return FALSE;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	150
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	151 if (clear)
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	152 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	153
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	154 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	155 buf->size = nsize;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	156
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	157 return TRUE;
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	158 }
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	159
94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	160
1509 15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	161 //
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	162 // 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	163 // 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	164 // current buffer "len".
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	165 //
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	166 BOOL dmGrowBufGrow(DMGrowBuf *buf, const size_t amount)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	167 {
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	168 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	169 {
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	170 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	171 if (!dmGrowBufRealloc(buf, buf->offs + buf->len + grow, TRUE))
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	172 return FALSE;
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
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	175 return TRUE;
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
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	178
1509 15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	179 //
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	180 // 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	181 // Buffer is enlarged to nsize + mingrow.
15afe578f0ae Add few comments to clarify things. Matti Hamalainen <ccr@tnsp.org> parents: 1508 diff changeset	182 //
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	183 BOOL dmGrowBufCheckGrow(DMGrowBuf *buf, const size_t nsize)
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	184 {
1531 260bf529a8f2 Implement current len/offs push/pop for growbuf. Matti Hamalainen <ccr@tnsp.org> parents: 1530 diff changeset	185 if (buf->adata == NULL \|\| buf->offs + nsize > buf->size)
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	186 {
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	187 if (!dmGrowBufRealloc(buf, buf->offs + nsize + buf->mingrow, TRUE))
1455 a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	188 return FALSE;
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	189 }
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	190
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	191 return TRUE;
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	192 }
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	193
a957b318fbe2 Add dmGrowBufCheckGrow() function. Matti Hamalainen <ccr@tnsp.org> parents: 1454 diff changeset	194
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	195 int dmGrowBufResize(DMGrowBuf *buf)
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 if (buf == NULL)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	198 return DMERR_NULLPTR;
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 buf->size = buf->len;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	201 if (buf->len == 0)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	202 return DMERR_OK;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	203
1530 94eb6a8a7d56 Add helper function dmGrowBufRealloc() to handle the common case of Matti Hamalainen <ccr@tnsp.org> parents: 1509 diff changeset	204 if (!dmGrowBufRealloc(buf, buf->size, FALSE))
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	205 return DMERR_MALLOC;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	206
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	207 return DMERR_OK;
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
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	211 BOOL dmGrowBufPutU8(DMGrowBuf *buf, const Uint8 value)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	212 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	213 if (!dmGrowBufGrow(buf, sizeof(Uint8)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	214 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	215
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	216 buf->data[buf->len++] = value;
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
1477 e8fe529f4341 Rename one of the growbuf functions. Matti Hamalainen <ccr@tnsp.org> parents: 1459 diff changeset	222 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	223 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	224 if (str == NULL)
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
1484 a0166c4050be Fix dmGrowBufPut() to not include extra byte. Matti Hamalainen <ccr@tnsp.org> parents: 1477 diff changeset	227 if (!dmGrowBufGrow(buf, len))
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	228 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	229
1484 a0166c4050be Fix dmGrowBufPut() to not include extra byte. Matti Hamalainen <ccr@tnsp.org> parents: 1477 diff changeset	230 memcpy(buf->data + buf->len, str, len);
1454 fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	231 buf->len += len;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	232
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	233 return TRUE;
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
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	237 BOOL dmGrowBufPutU16BE(DMGrowBuf *buf, const Uint16 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	238 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	239 if (!dmGrowBufGrow(buf, sizeof(Uint16)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	240 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	241
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 & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	244
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	245 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	246 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	247
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	248
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	249 BOOL dmGrowBufPutU16LE(DMGrowBuf *buf, const Uint16 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	250 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	251 if (!dmGrowBufGrow(buf, sizeof(Uint16)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	252 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	253
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	254 buf->data[buf->len++] = val & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	255 buf->data[buf->len++] = (val >> 8) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	256
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	257 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	258 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	259
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	260
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	261 BOOL dmGrowBufPutU32BE(DMGrowBuf *buf, const Uint32 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	262 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	263 if (!dmGrowBufGrow(buf, sizeof(Uint32)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	264 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	265
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	266 buf->data[buf->len++] = (val >> 24) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	267 buf->data[buf->len++] = (val >> 16) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	268 buf->data[buf->len++] = (val >> 8) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	269 buf->data[buf->len++] = val & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	270
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	271 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	272 }
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	273
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	274
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	275 BOOL dmGrowBufPutU32LE(DMGrowBuf *buf, const Uint32 val)
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	276 {
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	277 if (!dmGrowBufGrow(buf, sizeof(Uint32)))
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	278 return FALSE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	279
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	280 buf->data[buf->len++] = val & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	281 buf->data[buf->len++] = (val >> 8) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	282 buf->data[buf->len++] = (val >> 16) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	283 buf->data[buf->len++] = (val >> 24) & 0xff;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	284
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	285 return TRUE;
fff3b58d031c Add a growable buffer implementation. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	286 }

Mercurial > hg > dmlib

annotate src/dmgrowbuf.c @ 1536:064fc2e3ee64