964 lines
25 KiB
C
964 lines
25 KiB
C
/************************************************************
|
|
|
|
Copyright 1987, 1998 The Open Group
|
|
|
|
Permission to use, copy, modify, distribute, and sell this software and its
|
|
documentation for any purpose is hereby granted without fee, provided that
|
|
the above copyright notice appear in all copies and that both that
|
|
copyright notice and this permission notice appear in supporting
|
|
documentation.
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
|
|
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
Except as contained in this notice, the name of The Open Group shall not be
|
|
used in advertising or otherwise to promote the sale, use or other dealings
|
|
in this Software without prior written authorization from The Open Group.
|
|
|
|
|
|
Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that the name of Digital not be
|
|
used in advertising or publicity pertaining to distribution of the
|
|
software without specific, written prior permission.
|
|
|
|
DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
|
|
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
|
|
DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
|
|
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
|
|
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
|
|
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
|
SOFTWARE.
|
|
|
|
********************************************************/
|
|
/* The panoramix components contained the following notice */
|
|
/*****************************************************************
|
|
|
|
Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software.
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
|
|
BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,
|
|
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
|
|
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
Except as contained in this notice, the name of Digital Equipment Corporation
|
|
shall not be used in advertising or otherwise to promote the sale, use or other
|
|
dealings in this Software without prior written authorization from Digital
|
|
Equipment Corporation.
|
|
|
|
******************************************************************/
|
|
/* XSERVER_DTRACE additions:
|
|
* Copyright (c) 2005-2006, Oracle and/or its affiliates. All rights reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
/* Routines to manage various kinds of resources:
|
|
*
|
|
* CreateNewResourceType, CreateNewResourceClass, InitClientResources,
|
|
* FakeClientID, AddResource, FreeResource, FreeClientResources,
|
|
* FreeAllResources, LookupIDByType, LookupIDByClass, GetXIDRange
|
|
*/
|
|
|
|
/*
|
|
* A resource ID is a 32 bit quantity, the upper 2 bits of which are
|
|
* off-limits for client-visible resources. The next 8 bits are
|
|
* used as client ID, and the low 22 bits come from the client.
|
|
* A resource ID is "hashed" by extracting and xoring subfields
|
|
* (varying with the size of the hash table).
|
|
*
|
|
* It is sometimes necessary for the server to create an ID that looks
|
|
* like it belongs to a client. This ID, however, must not be one
|
|
* the client actually can create, or we have the potential for conflict.
|
|
* The 31st bit of the ID is reserved for the server's use for this
|
|
* purpose. By setting CLIENT_ID(id) to the client, the SERVER_BIT to
|
|
* 1, and an otherwise arbitrary ID in the low 22 bits, we can create a
|
|
* resource "owned" by the client.
|
|
*/
|
|
|
|
#ifdef HAVE_DIX_CONFIG_H
|
|
#include <dix-config.h>
|
|
#endif
|
|
|
|
#include <X11/X.h>
|
|
#include "misc.h"
|
|
#include "os.h"
|
|
#include "resource.h"
|
|
#include "dixstruct.h"
|
|
#include "opaque.h"
|
|
#include "windowstr.h"
|
|
#include "dixfont.h"
|
|
#include "colormap.h"
|
|
#include "inputstr.h"
|
|
#include "dixevents.h"
|
|
#include "dixgrabs.h"
|
|
#include "cursor.h"
|
|
#ifdef PANORAMIX
|
|
#include "panoramiX.h"
|
|
#include "panoramiXsrv.h"
|
|
#endif
|
|
#include "xace.h"
|
|
#include <assert.h>
|
|
#include "registry.h"
|
|
|
|
#ifdef XSERVER_DTRACE
|
|
#include <sys/types.h>
|
|
typedef const char *string;
|
|
#include "Xserver-dtrace.h"
|
|
|
|
#define TypeNameString(t) LookupResourceName(t)
|
|
#endif
|
|
|
|
static void RebuildTable(
|
|
int /*client*/
|
|
);
|
|
|
|
#define SERVER_MINID 32
|
|
|
|
#define INITBUCKETS 64
|
|
#define INITHASHSIZE 6
|
|
#define MAXHASHSIZE 11
|
|
|
|
typedef struct _Resource {
|
|
struct _Resource *next;
|
|
XID id;
|
|
RESTYPE type;
|
|
pointer value;
|
|
} ResourceRec, *ResourcePtr;
|
|
|
|
typedef struct _ClientResource {
|
|
ResourcePtr *resources;
|
|
int elements;
|
|
int buckets;
|
|
int hashsize; /* log(2)(buckets) */
|
|
XID fakeID;
|
|
XID endFakeID;
|
|
} ClientResourceRec;
|
|
|
|
RESTYPE lastResourceType;
|
|
static RESTYPE lastResourceClass;
|
|
RESTYPE TypeMask;
|
|
|
|
struct ResourceType {
|
|
DeleteType deleteFunc;
|
|
int errorValue;
|
|
};
|
|
|
|
static struct ResourceType *resourceTypes;
|
|
static const struct ResourceType predefTypes[] = {
|
|
[RT_NONE & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = (DeleteType)NoopDDA,
|
|
.errorValue = BadValue,
|
|
},
|
|
[RT_WINDOW & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = DeleteWindow,
|
|
.errorValue = BadWindow,
|
|
},
|
|
[RT_PIXMAP & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = dixDestroyPixmap,
|
|
.errorValue = BadPixmap,
|
|
},
|
|
[RT_GC & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = FreeGC,
|
|
.errorValue = BadGC,
|
|
},
|
|
[RT_FONT & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = CloseFont,
|
|
.errorValue = BadFont,
|
|
},
|
|
[RT_CURSOR & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = FreeCursor,
|
|
.errorValue = BadCursor,
|
|
},
|
|
[RT_COLORMAP & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = FreeColormap,
|
|
.errorValue = BadColor,
|
|
},
|
|
[RT_CMAPENTRY & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = FreeClientPixels,
|
|
.errorValue = BadColor,
|
|
},
|
|
[RT_OTHERCLIENT & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = OtherClientGone,
|
|
.errorValue = BadValue,
|
|
},
|
|
[RT_PASSIVEGRAB & (RC_LASTPREDEF - 1)] = {
|
|
.deleteFunc = DeletePassiveGrab,
|
|
.errorValue = BadValue,
|
|
},
|
|
};
|
|
|
|
CallbackListPtr ResourceStateCallback;
|
|
|
|
static _X_INLINE void
|
|
CallResourceStateCallback(ResourceState state, ResourceRec *res)
|
|
{
|
|
if (ResourceStateCallback) {
|
|
ResourceStateInfoRec rsi = { state, res->id, res->type, res->value };
|
|
CallCallbacks(&ResourceStateCallback, &rsi);
|
|
}
|
|
}
|
|
|
|
RESTYPE
|
|
CreateNewResourceType(DeleteType deleteFunc, char *name)
|
|
{
|
|
RESTYPE next = lastResourceType + 1;
|
|
struct ResourceType *types;
|
|
|
|
if (next & lastResourceClass)
|
|
return 0;
|
|
types = realloc(resourceTypes, (next + 1) * sizeof(*resourceTypes));
|
|
if (!types)
|
|
return 0;
|
|
|
|
lastResourceType = next;
|
|
resourceTypes = types;
|
|
resourceTypes[next].deleteFunc = deleteFunc;
|
|
resourceTypes[next].errorValue = BadValue;
|
|
|
|
/* Called even if name is NULL, to remove any previous entry */
|
|
RegisterResourceName(next, name);
|
|
|
|
return next;
|
|
}
|
|
|
|
void
|
|
SetResourceTypeErrorValue(RESTYPE type, int errorValue)
|
|
{
|
|
resourceTypes[type & TypeMask].errorValue = errorValue;
|
|
}
|
|
|
|
RESTYPE
|
|
CreateNewResourceClass(void)
|
|
{
|
|
RESTYPE next = lastResourceClass >> 1;
|
|
|
|
if (next & lastResourceType)
|
|
return 0;
|
|
lastResourceClass = next;
|
|
TypeMask = next - 1;
|
|
return next;
|
|
}
|
|
|
|
static ClientResourceRec clientTable[MAXCLIENTS];
|
|
|
|
/*****************
|
|
* InitClientResources
|
|
* When a new client is created, call this to allocate space
|
|
* in resource table
|
|
*****************/
|
|
|
|
Bool
|
|
InitClientResources(ClientPtr client)
|
|
{
|
|
int i, j;
|
|
|
|
if (client == serverClient)
|
|
{
|
|
lastResourceType = RT_LASTPREDEF;
|
|
lastResourceClass = RC_LASTPREDEF;
|
|
TypeMask = RC_LASTPREDEF - 1;
|
|
free(resourceTypes);
|
|
resourceTypes = malloc(sizeof(predefTypes));
|
|
if (!resourceTypes)
|
|
return FALSE;
|
|
memcpy(resourceTypes, predefTypes, sizeof(predefTypes));
|
|
}
|
|
clientTable[i = client->index].resources =
|
|
malloc(INITBUCKETS*sizeof(ResourcePtr));
|
|
if (!clientTable[i].resources)
|
|
return FALSE;
|
|
clientTable[i].buckets = INITBUCKETS;
|
|
clientTable[i].elements = 0;
|
|
clientTable[i].hashsize = INITHASHSIZE;
|
|
/* Many IDs allocated from the server client are visible to clients,
|
|
* so we don't use the SERVER_BIT for them, but we have to start
|
|
* past the magic value constants used in the protocol. For normal
|
|
* clients, we can start from zero, with SERVER_BIT set.
|
|
*/
|
|
clientTable[i].fakeID = client->clientAsMask |
|
|
(client->index ? SERVER_BIT : SERVER_MINID);
|
|
clientTable[i].endFakeID = (clientTable[i].fakeID | RESOURCE_ID_MASK) + 1;
|
|
for (j=0; j<INITBUCKETS; j++)
|
|
{
|
|
clientTable[i].resources[j] = NULL;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static int
|
|
Hash(int client, XID id)
|
|
{
|
|
id &= RESOURCE_ID_MASK;
|
|
switch (clientTable[client].hashsize)
|
|
{
|
|
case 6:
|
|
return ((int)(0x03F & (id ^ (id>>6) ^ (id>>12))));
|
|
case 7:
|
|
return ((int)(0x07F & (id ^ (id>>7) ^ (id>>13))));
|
|
case 8:
|
|
return ((int)(0x0FF & (id ^ (id>>8) ^ (id>>16))));
|
|
case 9:
|
|
return ((int)(0x1FF & (id ^ (id>>9))));
|
|
case 10:
|
|
return ((int)(0x3FF & (id ^ (id>>10))));
|
|
case 11:
|
|
return ((int)(0x7FF & (id ^ (id>>11))));
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static XID
|
|
AvailableID(
|
|
int client,
|
|
XID id,
|
|
XID maxid,
|
|
XID goodid)
|
|
{
|
|
ResourcePtr res;
|
|
|
|
if ((goodid >= id) && (goodid <= maxid))
|
|
return goodid;
|
|
for (; id <= maxid; id++)
|
|
{
|
|
res = clientTable[client].resources[Hash(client, id)];
|
|
while (res && (res->id != id))
|
|
res = res->next;
|
|
if (!res)
|
|
return id;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
GetXIDRange(int client, Bool server, XID *minp, XID *maxp)
|
|
{
|
|
XID id, maxid;
|
|
ResourcePtr *resp;
|
|
ResourcePtr res;
|
|
int i;
|
|
XID goodid;
|
|
|
|
id = (Mask)client << CLIENTOFFSET;
|
|
if (server)
|
|
id |= client ? SERVER_BIT : SERVER_MINID;
|
|
maxid = id | RESOURCE_ID_MASK;
|
|
goodid = 0;
|
|
for (resp = clientTable[client].resources, i = clientTable[client].buckets;
|
|
--i >= 0;)
|
|
{
|
|
for (res = *resp++; res; res = res->next)
|
|
{
|
|
if ((res->id < id) || (res->id > maxid))
|
|
continue;
|
|
if (((res->id - id) >= (maxid - res->id)) ?
|
|
(goodid = AvailableID(client, id, res->id - 1, goodid)) :
|
|
!(goodid = AvailableID(client, res->id + 1, maxid, goodid)))
|
|
maxid = res->id - 1;
|
|
else
|
|
id = res->id + 1;
|
|
}
|
|
}
|
|
if (id > maxid)
|
|
id = maxid = 0;
|
|
*minp = id;
|
|
*maxp = maxid;
|
|
}
|
|
|
|
/**
|
|
* GetXIDList is called by the XC-MISC extension's MiscGetXIDList function.
|
|
* This function tries to find count unused XIDs for the given client. It
|
|
* puts the IDs in the array pids and returns the number found, which should
|
|
* almost always be the number requested.
|
|
*
|
|
* The circumstances that lead to a call to this function are very rare.
|
|
* Xlib must run out of IDs while trying to generate a request that wants
|
|
* multiple ID's, like the Multi-buffering CreateImageBuffers request.
|
|
*
|
|
* No rocket science in the implementation; just iterate over all
|
|
* possible IDs for the given client and pick the first count IDs
|
|
* that aren't in use. A more efficient algorithm could probably be
|
|
* invented, but this will be used so rarely that this should suffice.
|
|
*/
|
|
|
|
unsigned int
|
|
GetXIDList(ClientPtr pClient, unsigned count, XID *pids)
|
|
{
|
|
unsigned int found = 0;
|
|
XID rc, id = pClient->clientAsMask;
|
|
XID maxid;
|
|
pointer val;
|
|
|
|
maxid = id | RESOURCE_ID_MASK;
|
|
while ( (found < count) && (id <= maxid) )
|
|
{
|
|
rc = dixLookupResourceByClass(&val, id, RC_ANY, serverClient,
|
|
DixGetAttrAccess);
|
|
if (rc == BadValue)
|
|
{
|
|
pids[found++] = id;
|
|
}
|
|
id++;
|
|
}
|
|
return found;
|
|
}
|
|
|
|
/*
|
|
* Return the next usable fake client ID.
|
|
*
|
|
* Normally this is just the next one in line, but if we've used the last
|
|
* in the range, we need to find a new range of safe IDs to avoid
|
|
* over-running another client.
|
|
*/
|
|
|
|
XID
|
|
FakeClientID(int client)
|
|
{
|
|
XID id, maxid;
|
|
|
|
id = clientTable[client].fakeID++;
|
|
if (id != clientTable[client].endFakeID)
|
|
return id;
|
|
GetXIDRange(client, TRUE, &id, &maxid);
|
|
if (!id) {
|
|
if (!client)
|
|
FatalError("FakeClientID: server internal ids exhausted\n");
|
|
MarkClientException(clients[client]);
|
|
id = ((Mask)client << CLIENTOFFSET) | (SERVER_BIT * 3);
|
|
maxid = id | RESOURCE_ID_MASK;
|
|
}
|
|
clientTable[client].fakeID = id + 1;
|
|
clientTable[client].endFakeID = maxid + 1;
|
|
return id;
|
|
}
|
|
|
|
Bool
|
|
AddResource(XID id, RESTYPE type, pointer value)
|
|
{
|
|
int client;
|
|
ClientResourceRec *rrec;
|
|
ResourcePtr res, *head;
|
|
|
|
#ifdef XSERVER_DTRACE
|
|
XSERVER_RESOURCE_ALLOC(id, type, value, TypeNameString(type));
|
|
#endif
|
|
client = CLIENT_ID(id);
|
|
rrec = &clientTable[client];
|
|
if (!rrec->buckets)
|
|
{
|
|
ErrorF("[dix] AddResource(%lx, %x, %lx), client=%d \n",
|
|
(unsigned long)id, type, (unsigned long)value, client);
|
|
FatalError("client not in use\n");
|
|
}
|
|
if ((rrec->elements >= 4*rrec->buckets) &&
|
|
(rrec->hashsize < MAXHASHSIZE))
|
|
RebuildTable(client);
|
|
head = &rrec->resources[Hash(client, id)];
|
|
res = malloc(sizeof(ResourceRec));
|
|
if (!res)
|
|
{
|
|
(*resourceTypes[type & TypeMask].deleteFunc)(value, id);
|
|
return FALSE;
|
|
}
|
|
res->next = *head;
|
|
res->id = id;
|
|
res->type = type;
|
|
res->value = value;
|
|
*head = res;
|
|
rrec->elements++;
|
|
CallResourceStateCallback(ResourceStateAdding, res);
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
RebuildTable(int client)
|
|
{
|
|
int j;
|
|
ResourcePtr res, next;
|
|
ResourcePtr **tails, *resources;
|
|
ResourcePtr **tptr, *rptr;
|
|
|
|
/*
|
|
* For now, preserve insertion order, since some ddx layers depend
|
|
* on resources being free in the opposite order they are added.
|
|
*/
|
|
|
|
j = 2 * clientTable[client].buckets;
|
|
tails = malloc(j * sizeof(ResourcePtr *));
|
|
if (!tails)
|
|
return;
|
|
resources = malloc(j * sizeof(ResourcePtr));
|
|
if (!resources)
|
|
{
|
|
free(tails);
|
|
return;
|
|
}
|
|
for (rptr = resources, tptr = tails; --j >= 0; rptr++, tptr++)
|
|
{
|
|
*rptr = NULL;
|
|
*tptr = rptr;
|
|
}
|
|
clientTable[client].hashsize++;
|
|
for (j = clientTable[client].buckets,
|
|
rptr = clientTable[client].resources;
|
|
--j >= 0;
|
|
rptr++)
|
|
{
|
|
for (res = *rptr; res; res = next)
|
|
{
|
|
next = res->next;
|
|
res->next = NULL;
|
|
tptr = &tails[Hash(client, res->id)];
|
|
**tptr = res;
|
|
*tptr = &res->next;
|
|
}
|
|
}
|
|
free(tails);
|
|
clientTable[client].buckets *= 2;
|
|
free(clientTable[client].resources);
|
|
clientTable[client].resources = resources;
|
|
}
|
|
|
|
static void
|
|
doFreeResource(ResourcePtr res, Bool skip)
|
|
{
|
|
CallResourceStateCallback(ResourceStateFreeing, res);
|
|
|
|
if (!skip)
|
|
resourceTypes[res->type & TypeMask].deleteFunc(res->value, res->id);
|
|
|
|
free(res);
|
|
}
|
|
|
|
void
|
|
FreeResource(XID id, RESTYPE skipDeleteFuncType)
|
|
{
|
|
int cid;
|
|
ResourcePtr res;
|
|
ResourcePtr *prev, *head;
|
|
int *eltptr;
|
|
int elements;
|
|
|
|
if (((cid = CLIENT_ID(id)) < MAXCLIENTS) && clientTable[cid].buckets)
|
|
{
|
|
head = &clientTable[cid].resources[Hash(cid, id)];
|
|
eltptr = &clientTable[cid].elements;
|
|
|
|
prev = head;
|
|
while ( (res = *prev) )
|
|
{
|
|
if (res->id == id)
|
|
{
|
|
RESTYPE rtype = res->type;
|
|
|
|
#ifdef XSERVER_DTRACE
|
|
XSERVER_RESOURCE_FREE(res->id, res->type,
|
|
res->value, TypeNameString(res->type));
|
|
#endif
|
|
*prev = res->next;
|
|
elements = --*eltptr;
|
|
|
|
doFreeResource(res, rtype == skipDeleteFuncType);
|
|
|
|
if (*eltptr != elements)
|
|
prev = head; /* prev may no longer be valid */
|
|
}
|
|
else
|
|
prev = &res->next;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
FreeResourceByType(XID id, RESTYPE type, Bool skipFree)
|
|
{
|
|
int cid;
|
|
ResourcePtr res;
|
|
ResourcePtr *prev, *head;
|
|
if (((cid = CLIENT_ID(id)) < MAXCLIENTS) && clientTable[cid].buckets)
|
|
{
|
|
head = &clientTable[cid].resources[Hash(cid, id)];
|
|
|
|
prev = head;
|
|
while ( (res = *prev) )
|
|
{
|
|
if (res->id == id && res->type == type)
|
|
{
|
|
#ifdef XSERVER_DTRACE
|
|
XSERVER_RESOURCE_FREE(res->id, res->type,
|
|
res->value, TypeNameString(res->type));
|
|
#endif
|
|
*prev = res->next;
|
|
clientTable[cid].elements--;
|
|
|
|
doFreeResource(res, skipFree);
|
|
|
|
break;
|
|
}
|
|
else
|
|
prev = &res->next;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Change the value associated with a resource id. Caller
|
|
* is responsible for "doing the right thing" with the old
|
|
* data
|
|
*/
|
|
|
|
Bool
|
|
ChangeResourceValue (XID id, RESTYPE rtype, pointer value)
|
|
{
|
|
int cid;
|
|
ResourcePtr res;
|
|
|
|
if (((cid = CLIENT_ID(id)) < MAXCLIENTS) && clientTable[cid].buckets)
|
|
{
|
|
res = clientTable[cid].resources[Hash(cid, id)];
|
|
|
|
for (; res; res = res->next)
|
|
if ((res->id == id) && (res->type == rtype))
|
|
{
|
|
res->value = value;
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/* Note: if func adds or deletes resources, then func can get called
|
|
* more than once for some resources. If func adds new resources,
|
|
* func might or might not get called for them. func cannot both
|
|
* add and delete an equal number of resources!
|
|
*/
|
|
|
|
void
|
|
FindClientResourcesByType(
|
|
ClientPtr client,
|
|
RESTYPE type,
|
|
FindResType func,
|
|
pointer cdata
|
|
){
|
|
ResourcePtr *resources;
|
|
ResourcePtr this, next;
|
|
int i, elements;
|
|
int *eltptr;
|
|
|
|
if (!client)
|
|
client = serverClient;
|
|
|
|
resources = clientTable[client->index].resources;
|
|
eltptr = &clientTable[client->index].elements;
|
|
for (i = 0; i < clientTable[client->index].buckets; i++)
|
|
{
|
|
for (this = resources[i]; this; this = next)
|
|
{
|
|
next = this->next;
|
|
if (!type || this->type == type) {
|
|
elements = *eltptr;
|
|
(*func)(this->value, this->id, cdata);
|
|
if (*eltptr != elements)
|
|
next = resources[i]; /* start over */
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
FindAllClientResources(
|
|
ClientPtr client,
|
|
FindAllRes func,
|
|
pointer cdata
|
|
){
|
|
ResourcePtr *resources;
|
|
ResourcePtr this, next;
|
|
int i, elements;
|
|
int *eltptr;
|
|
|
|
if (!client)
|
|
client = serverClient;
|
|
|
|
resources = clientTable[client->index].resources;
|
|
eltptr = &clientTable[client->index].elements;
|
|
for (i = 0; i < clientTable[client->index].buckets; i++)
|
|
{
|
|
for (this = resources[i]; this; this = next)
|
|
{
|
|
next = this->next;
|
|
elements = *eltptr;
|
|
(*func)(this->value, this->id, this->type, cdata);
|
|
if (*eltptr != elements)
|
|
next = resources[i]; /* start over */
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
pointer
|
|
LookupClientResourceComplex(
|
|
ClientPtr client,
|
|
RESTYPE type,
|
|
FindComplexResType func,
|
|
pointer cdata
|
|
){
|
|
ResourcePtr *resources;
|
|
ResourcePtr this, next;
|
|
pointer value;
|
|
int i;
|
|
|
|
if (!client)
|
|
client = serverClient;
|
|
|
|
resources = clientTable[client->index].resources;
|
|
for (i = 0; i < clientTable[client->index].buckets; i++) {
|
|
for (this = resources[i]; this; this = next) {
|
|
next = this->next;
|
|
if (!type || this->type == type) {
|
|
/* workaround func freeing the type as DRI1 does */
|
|
value = this->value;
|
|
if((*func)(value, this->id, cdata))
|
|
return value;
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
void
|
|
FreeClientNeverRetainResources(ClientPtr client)
|
|
{
|
|
ResourcePtr *resources;
|
|
ResourcePtr this;
|
|
ResourcePtr *prev;
|
|
int j, elements;
|
|
int *eltptr;
|
|
|
|
if (!client)
|
|
return;
|
|
|
|
resources = clientTable[client->index].resources;
|
|
eltptr = &clientTable[client->index].elements;
|
|
for (j=0; j < clientTable[client->index].buckets; j++)
|
|
{
|
|
prev = &resources[j];
|
|
while ( (this = *prev) )
|
|
{
|
|
RESTYPE rtype = this->type;
|
|
if (rtype & RC_NEVERRETAIN)
|
|
{
|
|
#ifdef XSERVER_DTRACE
|
|
XSERVER_RESOURCE_FREE(this->id, this->type,
|
|
this->value, TypeNameString(this->type));
|
|
#endif
|
|
*prev = this->next;
|
|
clientTable[client->index].elements--;
|
|
elements = *eltptr;
|
|
|
|
doFreeResource(this, FALSE);
|
|
|
|
if (*eltptr != elements)
|
|
prev = &resources[j]; /* prev may no longer be valid */
|
|
}
|
|
else
|
|
prev = &this->next;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
FreeClientResources(ClientPtr client)
|
|
{
|
|
ResourcePtr *resources;
|
|
ResourcePtr this;
|
|
int j;
|
|
|
|
/* This routine shouldn't be called with a null client, but just in
|
|
case ... */
|
|
|
|
if (!client)
|
|
return;
|
|
|
|
HandleSaveSet(client);
|
|
|
|
resources = clientTable[client->index].resources;
|
|
for (j=0; j < clientTable[client->index].buckets; j++)
|
|
{
|
|
/* It may seem silly to update the head of this resource list as
|
|
we delete the members, since the entire list will be deleted any way,
|
|
but there are some resource deletion functions "FreeClientPixels" for
|
|
one which do a LookupID on another resource id (a Colormap id in this
|
|
case), so the resource list must be kept valid up to the point that
|
|
it is deleted, so every time we delete a resource, we must update the
|
|
head, just like in FreeResource. I hope that this doesn't slow down
|
|
mass deletion appreciably. PRH */
|
|
|
|
ResourcePtr *head;
|
|
|
|
head = &resources[j];
|
|
|
|
for (this = *head; this; this = *head)
|
|
{
|
|
#ifdef XSERVER_DTRACE
|
|
XSERVER_RESOURCE_FREE(this->id, this->type,
|
|
this->value, TypeNameString(this->type));
|
|
#endif
|
|
*head = this->next;
|
|
clientTable[client->index].elements--;
|
|
|
|
doFreeResource(this, FALSE);
|
|
}
|
|
}
|
|
free(clientTable[client->index].resources);
|
|
clientTable[client->index].resources = NULL;
|
|
clientTable[client->index].buckets = 0;
|
|
}
|
|
|
|
void
|
|
FreeAllResources(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = currentMaxClients; --i >= 0; )
|
|
{
|
|
if (clientTable[i].buckets)
|
|
FreeClientResources(clients[i]);
|
|
}
|
|
}
|
|
|
|
Bool
|
|
LegalNewID(XID id, ClientPtr client)
|
|
{
|
|
pointer val;
|
|
int rc;
|
|
|
|
#ifdef PANORAMIX
|
|
XID minid, maxid;
|
|
|
|
if (!noPanoramiXExtension) {
|
|
minid = client->clientAsMask | (client->index ?
|
|
SERVER_BIT : SERVER_MINID);
|
|
maxid = (clientTable[client->index].fakeID | RESOURCE_ID_MASK) + 1;
|
|
if ((id >= minid) && (id <= maxid))
|
|
return TRUE;
|
|
}
|
|
#endif /* PANORAMIX */
|
|
if (client->clientAsMask == (id & ~RESOURCE_ID_MASK))
|
|
{
|
|
rc = dixLookupResourceByClass(&val, id, RC_ANY, serverClient,
|
|
DixGetAttrAccess);
|
|
return rc == BadValue;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
int
|
|
dixLookupResourceByType(pointer *result, XID id, RESTYPE rtype,
|
|
ClientPtr client, Mask mode)
|
|
{
|
|
int cid = CLIENT_ID(id);
|
|
ResourcePtr res = NULL;
|
|
|
|
*result = NULL;
|
|
if ((rtype & TypeMask) > lastResourceType)
|
|
return BadImplementation;
|
|
|
|
if ((cid < MAXCLIENTS) && clientTable[cid].buckets) {
|
|
res = clientTable[cid].resources[Hash(cid, id)];
|
|
|
|
for (; res; res = res->next)
|
|
if (res->id == id && res->type == rtype)
|
|
break;
|
|
}
|
|
if (!res)
|
|
return resourceTypes[rtype & TypeMask].errorValue;
|
|
|
|
if (client) {
|
|
client->errorValue = id;
|
|
cid = XaceHook(XACE_RESOURCE_ACCESS, client, id, res->type,
|
|
res->value, RT_NONE, NULL, mode);
|
|
if (cid == BadValue)
|
|
return resourceTypes[rtype & TypeMask].errorValue;
|
|
if (cid != Success)
|
|
return cid;
|
|
}
|
|
|
|
*result = res->value;
|
|
return Success;
|
|
}
|
|
|
|
int
|
|
dixLookupResourceByClass(pointer *result, XID id, RESTYPE rclass,
|
|
ClientPtr client, Mask mode)
|
|
{
|
|
int cid = CLIENT_ID(id);
|
|
ResourcePtr res = NULL;
|
|
|
|
*result = NULL;
|
|
|
|
if ((cid < MAXCLIENTS) && clientTable[cid].buckets) {
|
|
res = clientTable[cid].resources[Hash(cid, id)];
|
|
|
|
for (; res; res = res->next)
|
|
if (res->id == id && (res->type & rclass))
|
|
break;
|
|
}
|
|
if (!res)
|
|
return BadValue;
|
|
|
|
if (client) {
|
|
client->errorValue = id;
|
|
cid = XaceHook(XACE_RESOURCE_ACCESS, client, id, res->type,
|
|
res->value, RT_NONE, NULL, mode);
|
|
if (cid != Success)
|
|
return cid;
|
|
}
|
|
|
|
*result = res->value;
|
|
return Success;
|
|
}
|