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applied a better fix for the infamous "SV_TouchLinks: next != l->next" problem.

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Fixes "whiteroom" (http://www.quaddicted.com/reviews/whiteroom.html) completely
locking the engine. fix from the quakeforge sources.


git-svn-id: http://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@359 af15c1b1-3010-417e-b628-4374ebc0bcbd
This commit is contained in:
sezero 2010-12-31 07:55:43 +00:00
parent 1729f9ec3c
commit 0926f39da2
1 changed files with 12 additions and 11 deletions
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23
Quake/world.c
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@ -262,11 +262,18 @@ SV_UnlinkEdict
===============
*/
static link_t **sv_link_next;
static link_t **sv_link_prev;
void SV_UnlinkEdict (edict_t *ent)
{
if (!ent->area.prev)
return; // not linked in anywhere
RemoveLink (&ent->area);
if (sv_link_next && *sv_link_next == &ent->area)
*sv_link_next = ent->area.next;
if (sv_link_prev && *sv_link_prev == &ent->area)
*sv_link_prev = ent->area.prev;
ent->area.prev = ent->area.next = NULL;
}
@ -283,15 +290,15 @@ void SV_TouchLinks ( edict_t *ent, areanode_t *node )
int old_self, old_other;
// touch linked edicts
sv_link_next = &next;
for (l = node->trigger_edicts.next ; l != &node->trigger_edicts ; l = next)
{
//johnfitz -- fixes a crash when a touch function deletes an entity which comes later in the list
if (!l)
{
Con_Printf ("SV_TouchLinks: null link\n");
// my area got removed out from under me!
Con_Printf ("SV_TouchLinks: encountered NULL link!\n");
break;
}
//johnfitz
next = l->next;
touch = EDICT_FROM_AREA(l);
@ -314,18 +321,12 @@ void SV_TouchLinks ( edict_t *ent, areanode_t *node )
pr_global_struct->time = sv.time;
PR_ExecuteProgram (touch->v.touch);
//johnfitz -- the PR_ExecuteProgram above can alter the linked edicts -- fix from tyrquake
if (next != l->next && l->next)
{
Con_Printf ("SV_TouchLinks: next != l->next\n");
next = l->next;
}
//johnfitz
pr_global_struct->self = old_self;
pr_global_struct->other = old_other;
}
sv_link_next = NULL;
// recurse down both sides
if (node->axis == -1)
return;