0dc6a4a5dd
Also did the following: * Removed -fPIC from all Linux makefiles * AMXX build tool now also moved over to VS 2005 * AMXX build tool binary renamed from "AMXXRelease" to "builder" * MSVC project files now can use environment variables to point to the paths of the Metamod headers and HL SDK: $(METAMOD) and $(HLSDK) respectively
106 lines
1.7 KiB
C
106 lines
1.7 KiB
C
#include "memfile.h"
|
|
#include <string.h>
|
|
#include "osdefs.h"
|
|
|
|
memfile_t *memfile_creat(const char *name, size_t init)
|
|
{
|
|
memfile_t mf;
|
|
memfile_t *pmf;
|
|
|
|
mf.size = init;
|
|
mf.base = (char *)malloc(init);
|
|
mf.usedoffs = 0;
|
|
if (!mf.base)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
mf.offs = 0;
|
|
mf._static = 0;
|
|
|
|
pmf = (memfile_t *)malloc(sizeof(memfile_t));
|
|
memcpy(pmf, &mf, sizeof(memfile_t));
|
|
|
|
pmf->name = _strdup(name);
|
|
|
|
return pmf;
|
|
}
|
|
|
|
void memfile_destroy(memfile_t *mf)
|
|
{
|
|
if (!mf->_static)
|
|
{
|
|
free(mf->name);
|
|
free(mf->base);
|
|
free(mf);
|
|
}
|
|
}
|
|
|
|
void memfile_seek(memfile_t *mf, long seek)
|
|
{
|
|
mf->offs = seek;
|
|
}
|
|
|
|
long memfile_tell(memfile_t *mf)
|
|
{
|
|
return mf->offs;
|
|
}
|
|
|
|
size_t memfile_read(memfile_t *mf, void *buffer, size_t maxsize)
|
|
{
|
|
if (!maxsize || mf->offs >= mf->usedoffs)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (mf->usedoffs - mf->offs < (long)maxsize)
|
|
{
|
|
maxsize = mf->usedoffs - mf->offs;
|
|
if (!maxsize)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
memcpy(buffer, mf->base + mf->offs, maxsize);
|
|
|
|
mf->offs += maxsize;
|
|
|
|
return maxsize;
|
|
}
|
|
|
|
int memfile_write(memfile_t *mf, void *buffer, size_t size)
|
|
{
|
|
if (mf->offs + size > mf->size)
|
|
{
|
|
size_t newsize = (mf->size + size) * 2;
|
|
if (mf->_static)
|
|
{
|
|
char *oldbase = mf->base;
|
|
mf->base = (char *)malloc(newsize);
|
|
if (!mf->base)
|
|
{
|
|
return 0;
|
|
}
|
|
memcpy(mf->base, oldbase, mf->size);
|
|
} else {
|
|
mf->base = (char *)realloc(mf->base, newsize);
|
|
if (!mf->base)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
mf->_static = 0;
|
|
mf->size = newsize;
|
|
}
|
|
memcpy(mf->base + mf->offs, buffer, size);
|
|
mf->offs += size;
|
|
|
|
if (mf->offs > mf->usedoffs)
|
|
{
|
|
mf->usedoffs = mf->offs;
|
|
}
|
|
|
|
return 1;
|
|
}
|