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Added heap initialization for malloc/calloc/realloc/free.

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Added debug messages.
Removed fixed count for environment.

svn path=/trunk/; revision=2800
This commit is contained in:
Hartmut Birr 2002-04-01 21:55:09 +00:00
parent e129158330
commit 0ea281268b
1 changed files with 62 additions and 20 deletions
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82
reactos/lib/msvcrt/misc/dllmain.c
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@ -1,4 +1,4 @@
/* $Id: dllmain.c,v 1.10 2001/07/29 16:42:35 ekohl Exp $
/* $Id: dllmain.c,v 1.11 2002/04/01 21:55:09 hbirr Exp $
*
* ReactOS MSVCRT.DLL Compatibility Library
*/
@ -7,6 +7,9 @@
#include <msvcrt/internal/tls.h>
#include <msvcrt/stdlib.h>
#define NDEBUG
#include <msvcrt/msvcrtdbg.h>
static int nAttachCount = 0;
unsigned int _osver = 0;
@ -27,36 +30,48 @@ int __app_type = 0; //_UNKNOWN_APP; /* application type */
int __mb_cur_max = 1;
static int envAlloced = 0;
HANDLE hHeap = NULL; /* handle for heap */
/* FUNCTIONS **************************************************************/
int BlockEnvToEnviron()
{
char * ptr;
int i;
char * ptr, * ptr2;
int i, len;
if (!envAlloced)
DPRINT("BlockEnvToEnviron()\n");
if (_environ)
{
envAlloced = 50;
_environ = malloc (envAlloced * sizeof (char **));
if (_environ == NULL)
return -1;
_environ[0] = NULL;
FreeEnvironmentStringsA(_environ[0]);
free(_environ);
_environ = NULL;
}
ptr = (char *)GetEnvironmentStringsA();
if (!ptr)
return -1;
for (i = 0 ; *ptr && (i < envAlloced) ; i++)
ptr2 = ptr = (char*)GetEnvironmentStringsA();
if (ptr == NULL)
{
_environ[i] = ptr;
while(*ptr) ptr++;
ptr++;
DPRINT("GetEnvironmentStringsA() returnd NULL\n");
return -1;
}
_environ[i] = 0;
len = 0;
while (*ptr2)
{
len++;
while (*ptr2++);
}
_environ = malloc((len + 1) * sizeof(char*));
if (_environ == NULL)
{
FreeEnvironmentStringsA(ptr);
return -1;
}
for (i = 0; i < len && *ptr; i++)
{
_environ[i] = ptr;
while (*ptr++);
}
_environ[i] = NULL;
return 0;
}
@ -69,12 +84,22 @@ DllMain(PVOID hinstDll,
{
case DLL_PROCESS_ATTACH://1
/* initialize version info */
DPRINT("Attach %d\n", nAttachCount);
_osver = GetVersion();
_winmajor = (_osver >> 8) & 0xFF;
_winminor = _osver & 0xFF;
_winver = (_winmajor << 8) + _winminor;
_osver = (_osver >> 16) & 0xFFFF;
if (hHeap == NULL || hHeap == INVALID_HANDLE_VALUE)
{
hHeap = HeapCreate(0, 0, 0);
if (hHeap == NULL || hHeap == INVALID_HANDLE_VALUE)
{
return FALSE;
}
}
/* create tls stuff */
if (!CreateThreadData())
return FALSE;
@ -98,6 +123,7 @@ DllMain(PVOID hinstDll,
break;
case DLL_PROCESS_DETACH://0
DPRINT("Detach %d\n", nAttachCount);
if (nAttachCount > 0)
{
nAttachCount--;
@ -106,6 +132,22 @@ DllMain(PVOID hinstDll,
/* destroy tls stuff */
DestroyThreadData();
/* destroy heap */
if (nAttachCount == 0)
{
if (_environ)
{
FreeEnvironmentStringsA(_environ[0]);
free(_environ);
_environ = NULL;
}
#if 1
HeapDestroy(hHeap);
hHeap = NULL;
#endif
}
}
break;
}