home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Aminet 37
/
Aminet 37 (2000)(Schatztruhe)[!][Jun 2000].iso
/
Aminet
/
comm
/
bbs
/
cit_src_AD08.lha
/
virt.c
< prev
next >
Wrap
C/C++ Source or Header
|
1997-07-27
|
4KB
|
163 lines
/* virt.c
*
* Virtual room handler for Citadel-86.
*/
#include "ctdl.h"
/*
* history
*
* 91Nov15 HAW Restructured.
* 88Apr01 HAW Final cleanup before release.
*/
/*
* contents
*
* VirtInit() Initialize the virtual room stuff
* InitVNode() Init for a new node
* UpdVirtStuff() Updates the virtual stuff
* VirtSummary() Does real work of updating virtual stuff
*
*/
VirtualRoom *VRoomTab;
VirtNet *VirtNetList;
char VirtualInUse = FALSE;
int VirtSize, VNetSize;
extern NetBuffer netBuf;
extern CONFIG cfg;
extern int thisNet;
extern FILE *netLog;
extern char netDebug, TrError;
/*
* VirtInit()
*
* This function initializes the virtual room stuff, if available. The virtual
* room stuff is created by the virtadmn utility, so this is a non-fatal,
* non-warning failure -- the sysop doesn't even know that this stuff ain't
* here.
*/
void VirtInit()
{
#ifndef NO_VIRTUAL_ROOMS
FILE *fd;
SYS_FILE fn;
long size;
extern char *R_W_ANY;
makeVASysName(fn, "ctdlvrm.sys");
if ((fd = safeopen(fn, R_W_ANY)) == NULL)
return; /* Depend on initializer to handle VirtualInUse */
totalBytes(&size, fd);
VRoomTab = (VirtualRoom *) GetDynamic((int) size);
fread((char *) VRoomTab, (int) size, 1, fd);
fclose(fd);
VirtSize = (int) size / sizeof *VRoomTab;
VirtualInUse = TRUE;
makeVASysName(fn, "ctdlvnet.sys");
if ((fd = safeopen(fn, R_W_ANY)) == NULL)
crashout("ctdlvnet.sys is missing!!");
totalBytes(&size, fd);
VirtNetList = (VirtNet *) GetDynamic((int) size);
VNetSize = size / sizeof *VirtNetList;
fread(VirtNetList, (int) size, 1, fd);
fclose(fd);
#endif
}
/*
* InitVNode()
*
* When a new node is added to the net list, this function initializes the
* virtual part of the new node. This consists of enlarging the vnet table
* size if necessary, and initializing the room pointers to -1, indicating
* that none of them are in use. Finally, the virtual tables on disk are
* updated.
*/
void InitVNode(int slot)
{
#ifndef NO_VIRTUAL_ROOMS
int rover;
if (!VirtualInUse) return ;
if (slot >= VNetSize)
{
VirtNetList = realloc(VirtNetList, (slot+1) * sizeof *VirtNetList);
VNetSize = slot + 1;
}
for (rover = 0; rover < VIRT_LIMIT; rover++)
VirtNetList[slot].VirtList[rover].WhichVirt = -1;
UpdVirtStuff();
#endif
}
/*
* UpdVirtStuff()
*
* This function updates the virtual data on disk.
*/
void UpdVirtStuff()
{
#ifndef NO_VIRTUAL_ROOMS
FILE *fd;
SYS_FILE fn;
extern char *R_W_ANY;
if (!VirtualInUse) return ;
VirtSummary();
makeVASysName(fn, "ctdlvrm.sys");
if ((fd = safeopen(fn, R_W_ANY)) == NULL)
crashout("ctdlvrm.sys is missing!");
fwrite(VRoomTab, VirtSize, sizeof *VRoomTab, fd);
fclose(fd);
makeVASysName(fn, "ctdlvnet.sys");
if ((fd = safeopen(fn, R_W_ANY)) == NULL)
crashout("ctdlvnet.sys is missing!!");
fwrite(VirtNetList, cfg.netSize, sizeof *VirtNetList, fd);
fclose(fd);
#endif
}
/*
* VirtSummary()
*
* This function handles post-call cleanup.
*/
void VirtSummary()
{
#ifndef NO_VIRTUAL_ROOMS
int rover, another;
for (rover = 0; rover < VirtSize; rover++)
{
if (VRoomTab[rover].vrChanged & LD_CHANGE)
{
VRoomTab[rover].vrHiLD++;
for (another = 0; another < VIRT_LIMIT; another++)
if (VirtNetList[thisNet].VirtList[another].WhichVirt == rover)
{
VirtNetList[thisNet].VirtList[another].LDSent =
VRoomTab[rover].vrHiLD;
break;
}
/*if (another == VIRT_LIMIT) splitF(netLog, "Unexpected mistake 1 in LDVirtSummary!\n"); */
}
if (VRoomTab[rover].vrChanged & LOC_CHANGE)
{
VRoomTab[rover].vrHiLocal++;
for (another = 0; another < VIRT_LIMIT; another++)
if (VirtNetList[thisNet].VirtList[another].WhichVirt == rover)
{
VirtNetList[thisNet].VirtList[another].LocSent =
VRoomTab[rover].vrHiLocal;
break;
}
/*if (another == VIRT_LIMIT) splitF(netLog, "Unexpected mistake 2 in LocVirtSummary!\n"); */
}
VRoomTab[rover].vrChanged = 0;
}
#endif
}