File: 7zBuf2.c

package info (click to toggle)
mame 0.228%2Bdfsg.1-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 956,280 kB
  • sloc: cpp: 4,712,769; xml: 1,946,353; ansic: 829,986; sh: 49,187; lisp: 18,100; python: 17,897; makefile: 10,815; cs: 10,047; javascript: 8,196; yacc: 7,565; java: 7,151; objc: 5,791; asm: 4,639; perl: 2,850; ada: 1,681; lex: 1,174; pascal: 1,139; ruby: 317; awk: 35
file content (51 lines) | stat: -rw-r--r-- 889 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
/* 7zBuf2.c -- Byte Buffer
2014-08-22 : Igor Pavlov : Public domain */

#include "Precomp.h"

#include <string.h>

#include "7zBuf.h"

void DynBuf_Construct(CDynBuf *p)
{
  p->data = 0;
  p->size = 0;
  p->pos = 0;
}

void DynBuf_SeekToBeg(CDynBuf *p)
{
  p->pos = 0;
}

int DynBuf_Write(CDynBuf *p, const Byte *buf, size_t size, ISzAlloc *alloc)
{
  if (size > p->size - p->pos)
  {
    size_t newSize = p->pos + size;
    Byte *data;
    newSize += newSize / 4;
    data = (Byte *)alloc->Alloc(alloc, newSize);
    if (data == 0)
      return 0;
    p->size = newSize;
    memcpy(data, p->data, p->pos);
    alloc->Free(alloc, p->data);
    p->data = data;
  }
  if (size != 0)
  {
    memcpy(p->data + p->pos, buf, size);
    p->pos += size;
  }
  return 1;
}

void DynBuf_Free(CDynBuf *p, ISzAlloc *alloc)
{
  alloc->Free(alloc, p->data);
  p->data = 0;
  p->size = 0;
  p->pos = 0;
}