xserver git update 15/5/2010

1 files changed, 282 insertions, 322 deletions

diff --git a/xorg-server/dix/privates.c b/xorg-server/dix/privates.c
index e3e727462..52a8df3f6 100644
--- a/xorg-server/dix/privates.c
+++ b/xorg-server/dix/privates.c
@@ -1,322 +1,282 @@
-/*
-
-Copyright 1993, 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.
-
-*/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <stddef.h>
-#include "windowstr.h"
-#include "resource.h"
-#include "privates.h"
-#include "gcstruct.h"
-#include "cursorstr.h"
-#include "colormapst.h"
-#include "inputstr.h"
-
-struct _Private {
-    int state;
-    pointer value;
-};
-
-typedef struct _PrivateDesc {
-    DevPrivateKey key;
-    unsigned size;
-    CallbackListPtr initfuncs;
-    CallbackListPtr deletefuncs;
-} PrivateDescRec;
-
-#define PRIV_MAX 256
-#define PRIV_STEP 16
-
-/* list of all allocated privates */
-static PrivateDescRec items[PRIV_MAX];
-static int nextPriv;
-
-static PrivateDescRec *
-findItem(const DevPrivateKey key)
-{
-    if (!*key) {
-	if (nextPriv >= PRIV_MAX)
-	    return NULL;
-
-	items[nextPriv].key = key;
-	*key = nextPriv;
-	nextPriv++;
-    }
-
-    return items + *key;
-}
-
-static _X_INLINE int
-privateExists(PrivateRec **privates, const DevPrivateKey key)
-{
-    return *key && *privates &&
-	(*privates)[0].state > *key &&
-	(*privates)[*key].state;
-}
-
-/*
- * Request pre-allocated space.
- */
-int
-dixRequestPrivate(const DevPrivateKey key, unsigned size)
-{
-    PrivateDescRec *item = findItem(key);
-    if (!item)
-	return FALSE;
-    if (size > item->size)
-	item->size = size;
-    return TRUE;
-}
-
-/*
- * Allocate a private and attach it to an existing object.
- */
-pointer *
-dixAllocatePrivate(PrivateRec **privates, const DevPrivateKey key)
-{
-    PrivateDescRec *item = findItem(key);
-    PrivateCallbackRec calldata;
-    PrivateRec *ptr;
-    pointer value;
-    int oldsize, newsize;
-
-    newsize = (*key / PRIV_STEP + 1) * PRIV_STEP;
-
-    /* resize or init privates array */
-    if (!item)
-	return NULL;
-
-    /* initialize privates array if necessary */
-    if (!*privates) {
-	ptr = xcalloc(newsize, sizeof(*ptr));
-	if (!ptr)
-	    return NULL;
-	*privates = ptr;
-	(*privates)[0].state = newsize;
-    }
-
-    oldsize = (*privates)[0].state;
-
-    /* resize privates array if necessary */
-    if (*key >= oldsize) {
-	ptr = xrealloc(*privates, newsize * sizeof(*ptr));
-	if (!ptr)
-	    return NULL;
-	memset(ptr + oldsize, 0, (newsize - oldsize) * sizeof(*ptr));
-	*privates = ptr;
-	(*privates)[0].state = newsize;
-    }
-
-    /* initialize slot */
-    ptr = *privates + *key;
-    ptr->state = 1;
-    if (item->size) {
-	value = xcalloc(item->size, 1);
-	if (!value)
-	    return NULL;
-	ptr->value = value;
-    }
-
-    calldata.key = key;
-    calldata.value = &ptr->value;
-    CallCallbacks(&item->initfuncs, &calldata);
-
-    return &ptr->value;
-}
-
-/*
- * Look up a private pointer.
- */
-pointer
-dixLookupPrivate(PrivateRec **privates, const DevPrivateKey key)
-{
-    pointer *ptr;
-
-    if (privateExists(privates, key))
-	return (*privates)[*key].value;
-
-    ptr = dixAllocatePrivate(privates, key);
-    return ptr ? *ptr : NULL;
-}
-
-/*
- * Look up the address of a private pointer.
- */
-pointer *
-dixLookupPrivateAddr(PrivateRec **privates, const DevPrivateKey key)
-{
-    if (privateExists(privates, key))
-	return &(*privates)[*key].value;
-
-    return dixAllocatePrivate(privates, key);
-}
-
-/*
- * Set a private pointer.
- */
-int
-dixSetPrivate(PrivateRec **privates, const DevPrivateKey key, pointer val)
-{
- top:
-    if (privateExists(privates, key)) {
-	(*privates)[*key].value = val;
-	return TRUE;
-    }
-
-    if (!dixAllocatePrivate(privates, key))
-	return FALSE;
-    goto top;
-}
-
-/*
- * Called to free privates at object deletion time.
- */
-void
-dixFreePrivates(PrivateRec *privates)
-{
-    int i;
-    PrivateCallbackRec calldata;
-
-    if (privates)
-	for (i = 1; i < privates->state; i++)
-	    if (privates[i].state) {
-		/* call the delete callbacks */
-		calldata.key = items[i].key;
-		calldata.value = &privates[i].value;
-		CallCallbacks(&items[i].deletefuncs, &calldata);
-
-		/* free pre-allocated memory */
-		if (items[i].size)
-		    xfree(privates[i].value);
-	    }
-
-    xfree(privates);
-}
-
-/*
- * Callback registration
- */
-int
-dixRegisterPrivateInitFunc(const DevPrivateKey key,
-			   CallbackProcPtr callback, pointer data)
-{
-    PrivateDescRec *item = findItem(key);
-    if (!item)
-	return FALSE;
-
-    return AddCallback(&item->initfuncs, callback, data);
-}
-
-int
-dixRegisterPrivateDeleteFunc(const DevPrivateKey key,
-			     CallbackProcPtr callback, pointer data)
-{
-    PrivateDescRec *item = findItem(key);
-    if (!item)
-	return FALSE;
-
-    return AddCallback(&item->deletefuncs, callback, data);
-}
-
-/* Table of devPrivates offsets */
-static const int offsetDefaults[] = {
-    -1,					/* RT_NONE */
-    offsetof(WindowRec, devPrivates),	/* RT_WINDOW */
-    offsetof(PixmapRec, devPrivates),	/* RT_PIXMAP */
-    offsetof(GC, devPrivates),		/* RT_GC */
-    -1,		    			/* RT_FONT */
-    offsetof(CursorRec, devPrivates),	/* RT_CURSOR */
-    offsetof(ColormapRec, devPrivates),	/* RT_COLORMAP */
-    -1,			  		/* RT_CMAPENTRY */
-    -1,					/* RT_OTHERCLIENT */
-    -1					/* RT_PASSIVEGRAB */
-};
-    
-static int *offsets = NULL;
-static int offsetsSize = 0;
-
-/*
- * Specify where the devPrivates field is located in a structure type
- */
-int
-dixRegisterPrivateOffset(RESTYPE type, int offset)
-{
-    type = type & TypeMask;
-
-    /* resize offsets table if necessary */
-    while (type >= offsetsSize) {
-	unsigned i = offsetsSize * 2 * sizeof(int);
-	offsets = (int *)xrealloc(offsets, i);
-	if (!offsets) {
-	    offsetsSize = 0;
-	    return FALSE;
-	}
-	for (i=offsetsSize; i < 2*offsetsSize; i++)
-	    offsets[i] = -1;
-	offsetsSize *= 2;
-    }
-
-    offsets[type] = offset;
-    return TRUE;
-}
-
-int
-dixLookupPrivateOffset(RESTYPE type)
-{
-    type = type & TypeMask;
-    assert(type < offsetsSize);
-    return offsets[type];
-}
-
-int
-dixResetPrivates(void)
-{
-    int i;
-
-    /* reset private descriptors */
-    for (i = 1; i < nextPriv; i++) {
-	*items[i].key = 0;
-	items[i].size = 0;
-	DeleteCallbackList(&items[i].initfuncs);
-	DeleteCallbackList(&items[i].deletefuncs);
-    }
-    nextPriv = 1;
-
-    /* reset offsets */
-    if (offsets)
-	xfree(offsets);
-    offsetsSize = sizeof(offsetDefaults);
-    offsets = xalloc(offsetsSize);
-    offsetsSize /= sizeof(int);
-    if (!offsets)
-	return FALSE;
-    memcpy(offsets, offsetDefaults, sizeof(offsetDefaults));
-    return TRUE;
-}
+/*

+

+Copyright 1993, 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.

+

+*/

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <stddef.h>

+#include "windowstr.h"

+#include "resource.h"

+#include "privates.h"

+#include "gcstruct.h"

+#include "cursorstr.h"

+#include "colormapst.h"

+#include "inputstr.h"

+

+struct _Private {

+    int state;

+    pointer value;

+};

+

+typedef struct _PrivateDesc {

+    DevPrivateKey key;

+    unsigned size;

+} PrivateDescRec;

+

+#define PRIV_MAX 256

+#define PRIV_STEP 16

+

+/* list of all allocated privates */

+static PrivateDescRec items[PRIV_MAX];

+static int nextPriv;

+

+static PrivateDescRec *

+findItem(const DevPrivateKey key)

+{

+    if (!*key) {

+	if (nextPriv >= PRIV_MAX)

+	    return NULL;

+

+	items[nextPriv].key = key;

+	*key = nextPriv;

+	nextPriv++;

+    }

+

+    return items + *key;

+}

+

+static _X_INLINE int

+privateExists(PrivateRec **privates, const DevPrivateKey key)

+{

+    return *key && *privates &&

+	(*privates)[0].state > *key &&

+	(*privates)[*key].state;

+}

+

+/*

+ * Request pre-allocated space.

+ */

+int

+dixRequestPrivate(const DevPrivateKey key, unsigned size)

+{

+    PrivateDescRec *item = findItem(key);

+    if (!item)

+	return FALSE;

+    if (size > item->size)

+	item->size = size;

+    return TRUE;

+}

+

+/*

+ * Allocate a private and attach it to an existing object.

+ */

+pointer *

+dixAllocatePrivate(PrivateRec **privates, const DevPrivateKey key)

+{

+    PrivateDescRec *item = findItem(key);

+    PrivateRec *ptr;

+    pointer value;

+    int oldsize, newsize;

+

+    newsize = (*key / PRIV_STEP + 1) * PRIV_STEP;

+

+    /* resize or init privates array */

+    if (!item)

+	return NULL;

+

+    /* initialize privates array if necessary */

+    if (!*privates) {

+	ptr = calloc(newsize, sizeof(*ptr));

+	if (!ptr)

+	    return NULL;

+	*privates = ptr;

+	(*privates)[0].state = newsize;

+    }

+

+    oldsize = (*privates)[0].state;

+

+    /* resize privates array if necessary */

+    if (*key >= oldsize) {

+	ptr = realloc(*privates, newsize * sizeof(*ptr));

+	if (!ptr)

+	    return NULL;

+	memset(ptr + oldsize, 0, (newsize - oldsize) * sizeof(*ptr));

+	*privates = ptr;

+	(*privates)[0].state = newsize;

+    }

+

+    /* initialize slot */

+    ptr = *privates + *key;

+    ptr->state = 1;

+    if (item->size) {

+	value = calloc(item->size, 1);

+	if (!value)

+	    return NULL;

+	ptr->value = value;

+    }

+

+    return &ptr->value;

+}

+

+/*

+ * Look up a private pointer.

+ */

+pointer

+dixLookupPrivate(PrivateRec **privates, const DevPrivateKey key)

+{

+    pointer *ptr;

+

+    if (privateExists(privates, key))

+	return (*privates)[*key].value;

+

+    ptr = dixAllocatePrivate(privates, key);

+    return ptr ? *ptr : NULL;

+}

+

+/*

+ * Look up the address of a private pointer.

+ */

+pointer *

+dixLookupPrivateAddr(PrivateRec **privates, const DevPrivateKey key)

+{

+    if (privateExists(privates, key))

+	return &(*privates)[*key].value;

+

+    return dixAllocatePrivate(privates, key);

+}

+

+/*

+ * Set a private pointer.

+ */

+int

+dixSetPrivate(PrivateRec **privates, const DevPrivateKey key, pointer val)

+{

+ top:

+    if (privateExists(privates, key)) {

+	(*privates)[*key].value = val;

+	return TRUE;

+    }

+

+    if (!dixAllocatePrivate(privates, key))

+	return FALSE;

+    goto top;

+}

+

+/*

+ * Called to free privates at object deletion time.

+ */

+void

+dixFreePrivates(PrivateRec *privates)

+{

+    int i;

+

+    if (privates)

+	for (i = 1; i < privates->state; i++)

+	    if (privates[i].state) {

+		/* free pre-allocated memory */

+		if (items[i].size)

+		    free(privates[i].value);

+	    }

+

+    free(privates);

+}

+

+/* Table of devPrivates offsets */

+static const int offsetDefaults[] = {

+    -1,					/* RT_NONE */

+    offsetof(WindowRec, devPrivates),	/* RT_WINDOW */

+    offsetof(PixmapRec, devPrivates),	/* RT_PIXMAP */

+    offsetof(GC, devPrivates),		/* RT_GC */

+    -1,		    			/* RT_FONT */

+    offsetof(CursorRec, devPrivates),	/* RT_CURSOR */

+    offsetof(ColormapRec, devPrivates),	/* RT_COLORMAP */

+    -1,			  		/* RT_CMAPENTRY */

+    -1,					/* RT_OTHERCLIENT */

+    -1					/* RT_PASSIVEGRAB */

+};

+    

+static int *offsets = NULL;

+static int offsetsSize = 0;

+

+/*

+ * Specify where the devPrivates field is located in a structure type

+ */

+int

+dixRegisterPrivateOffset(RESTYPE type, int offset)

+{

+    type = type & TypeMask;

+

+    /* resize offsets table if necessary */

+    while (type >= offsetsSize) {

+	unsigned i = offsetsSize * 2 * sizeof(int);

+	offsets = (int *)realloc(offsets, i);

+	if (!offsets) {

+	    offsetsSize = 0;

+	    return FALSE;

+	}

+	for (i=offsetsSize; i < 2*offsetsSize; i++)

+	    offsets[i] = -1;

+	offsetsSize *= 2;

+    }

+

+    offsets[type] = offset;

+    return TRUE;

+}

+

+int

+dixLookupPrivateOffset(RESTYPE type)

+{

+    type = type & TypeMask;

+    assert(type < offsetsSize);

+    return offsets[type];

+}

+

+int

+dixResetPrivates(void)

+{

+    int i;

+

+    /* reset private descriptors */

+    for (i = 1; i < nextPriv; i++) {

+	*items[i].key = 0;

+	items[i].size = 0;

+    }

+    nextPriv = 1;

+

+    /* reset offsets */

+    if (offsets)

+	free(offsets);

+    offsetsSize = sizeof(offsetDefaults);

+    offsets = malloc(offsetsSize);

+    offsetsSize /= sizeof(int);

+    if (!offsets)

+	return FALSE;

+    memcpy(offsets, offsetDefaults, sizeof(offsetDefaults));

+    return TRUE;

+}