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refactoring: split strlist.h classes into separate {h,cpp} files

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git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@3694 212acab6-be3b-0410-9dea-997c60f758d6
This commit is contained in:
kichik 2004-10-02 15:17:00 +00:00
parent 779e0354d2
commit 60aa307741
10 changed files with 971 additions and 798 deletions
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68
Source/growbuf.cpp Normal file
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#include "growbuf.h"
#include "Platform.h"
#include <cstdlib> // for malloc/free
#include <cstring> // for memcpy
#include <cstdio> // for f*
GrowBuf::GrowBuf() { m_alloc=m_used=m_zero=0; m_s=NULL; m_bs=32768; }
GrowBuf::~GrowBuf() { free(m_s); }
void GrowBuf::set_zeroing(int zero) { m_zero=zero; }
int GrowBuf::add(const void *data, int len)
{
if (len<=0) return 0;
resize(m_used+len);
memcpy((char*)m_s+m_used-len,data,len);
return m_used-len;
}
void GrowBuf::resize(int newlen)
{
int os=m_alloc;
int ou=m_used;
m_used=newlen;
if (newlen > m_alloc)
{
void *n;
m_alloc = newlen*2 + m_bs;
n = realloc(m_s, m_alloc);
if (!n)
{
extern FILE *g_output;
extern int g_display_errors;
if (g_display_errors)
{
fprintf(g_output,"\nack! realloc(%d) failed, trying malloc(%d)!\n",m_alloc,newlen);
fflush(g_output);
}
m_alloc=newlen; // try to malloc the minimum needed
n=malloc(m_alloc);
if (!n)
{
extern void quit();
if (g_display_errors)
{
fprintf(g_output,"\nInternal compiler error #12345: GrowBuf realloc/malloc(%d) failed.\n",m_alloc);
fflush(g_output);
}
quit();
}
memcpy(n,m_s,min(newlen,os));
free(m_s);
}
m_s=n;
}
if (m_zero && m_used > ou)
memset((char*)m_s + ou, 0, m_used - ou);
if (!m_used && m_alloc > 2*m_bs) // only free if you resize to 0 and we're > 64k
{
m_alloc=0;
free(m_s);
m_s=NULL;
}
}
int GrowBuf::getlen() const { return m_used; }
void *GrowBuf::get() const { return m_s; }