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fix deltalisten bug found by shpuld, and possible entity number overflow bug.

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also make csqc_ent_remove even more optional.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4854 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2015-04-21 20:06:27 +00:00
parent afe18bec95
commit 10e91c5771
1 changed files with 33 additions and 39 deletions
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72
engine/client/pr_csqc.c
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@ -4146,7 +4146,7 @@ typedef struct
unsigned int maxents; //buffer size
struct
{
unsigned int n; //don't rely on the ent->v->entnum
unsigned int n; //don't rely on the ent->v->entnum, as csqc can corrupt that
csqcedict_t *e; //the csqc ent
} *e;
} csqcdelta_pack_t;
@ -4165,8 +4165,7 @@ qboolean CSQC_DeltaPlayer(int playernum, player_state_t *state)
{
if (csqcdelta_playerents[playernum])
{
*csqcg.self = EDICT_TO_PROG(csqcprogs, (void*)csqcdelta_playerents[playernum]);
PR_ExecuteProgram(csqcprogs, csqcg.ent_remove);
CSQC_EntRemove(csqcdelta_playerents[playernum]);
csqcdelta_playerents[playernum] = NULL;
}
return false;
@ -4198,8 +4197,7 @@ qboolean CSQC_DeltaPlayer(int playernum, player_state_t *state)
}
else if (csqcdelta_playerents[playernum])
{
*csqcg.self = EDICT_TO_PROG(csqcprogs, (void*)csqcdelta_playerents[playernum]);
PR_ExecuteProgram(csqcprogs, csqcg.ent_remove);
CSQC_EntRemove(csqcdelta_playerents[playernum]);
csqcdelta_playerents[playernum] = NULL;
}
return false;
@ -4219,6 +4217,20 @@ void CSQC_DeltaStart(float time)
csqcdelta_pack_new.readpos = 0;
csqcdelta_pack_old.readpos = 0;
}
static CSQC_EntRemove(csqcedict_t *ed)
{
if (csqcg.ent_remove)
{
*csqcg.self = EDICT_TO_PROG(csqcprogs, ed);
PR_ExecuteProgram(csqcprogs, csqcg.ent_remove);
}
else
{
pe->DelinkTrailstate(&ed->trailstate);
World_UnlinkEdict((wedict_t*)ed);
ED_Free (csqcprogs, (void*)ed);
}
}
qboolean CSQC_DeltaUpdate(entity_state_t *src)
{
//FTE ensures that this function is called with increasing ent numbers each time
@ -4229,47 +4241,31 @@ qboolean CSQC_DeltaUpdate(entity_state_t *src)
void *pr_globals;
csqcedict_t *ent, *oldent;
if (csqcdelta_pack_old.readpos == csqcdelta_pack_old.numents)
{ //reached the end of the old frame's ents
oldent = NULL;
}
else
while (csqcdelta_pack_old.readpos < csqcdelta_pack_old.numents && csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].n < src->number)
{
while (csqcdelta_pack_old.readpos < csqcdelta_pack_old.numents && csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].n < src->number)
{
//this entity is stale, remove it.
oldent = csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].e;
*csqcg.self = EDICT_TO_PROG(csqcprogs, (void*)oldent);
PR_ExecuteProgram(csqcprogs, csqcg.ent_remove);
csqcdelta_pack_old.readpos++;
}
//this entity is stale, remove it.
CSQC_EntRemove(csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].e);
csqcdelta_pack_old.readpos++;
}
if (src->number < csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].n)
oldent = NULL;
else
{
oldent = csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].e;
csqcdelta_pack_old.readpos++;
}
if (csqcdelta_pack_old.readpos >= csqcdelta_pack_old.numents)
oldent = NULL; //reached the end of the old frame's ents (so we must be new)
else if (src->number < csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].n)
oldent = NULL; //there's a gap, this one must be new.
else
{ //already known.
oldent = csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].e;
csqcdelta_pack_old.readpos++;
}
if (src->number < maxcsqcentities && csqcent[src->number])
{
//in the csqc list (don't permit in the delta list too)
if (oldent)
{
*csqcg.self = EDICT_TO_PROG(csqcprogs, (void*)oldent);
PR_ExecuteProgram(csqcprogs, csqcg.ent_remove);
}
CSQC_EntRemove(oldent);
return false;
}
if (oldent)
ent = oldent;
else
@ -4306,8 +4302,7 @@ void CSQC_DeltaEnd(void)
//remove any unreferenced ents stuck on the end
while (csqcdelta_pack_old.readpos < csqcdelta_pack_old.numents)
{
*csqcg.self = EDICT_TO_PROG(csqcprogs, (void*)csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].e);
PR_ExecuteProgram(csqcprogs, csqcg.ent_remove);
CSQC_EntRemove(csqcdelta_pack_old.e[csqcdelta_pack_old.readpos].e);
csqcdelta_pack_old.readpos++;
}
}
@ -7019,8 +7014,7 @@ void CSQC_ParseEntities(void)
if (!ent) //hrm.
continue;
*csqcg.self = EDICT_TO_PROG(csqcprogs, (void*)ent);
PR_ExecuteProgram(csqcprogs, csqcg.ent_remove);
CSQC_EntRemove(ent);
//the csqc is expected to call the remove builtin.
}
else