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Diffstat (limited to 'xorg-server/dix/privates.c')
-rw-r--r--xorg-server/dix/privates.c414
1 files changed, 335 insertions, 79 deletions
diff --git a/xorg-server/dix/privates.c b/xorg-server/dix/privates.c
index 21faf5b94..04fa24ad3 100644
--- a/xorg-server/dix/privates.c
+++ b/xorg-server/dix/privates.c
@@ -62,13 +62,9 @@ from The Open Group.
#include "inputstr.h"
#include "scrnintstr.h"
#include "extnsionst.h"
+#include "inputstr.h"
-static struct {
- DevPrivateKey key;
- unsigned offset;
- int created;
- int allocated;
-} keys[PRIVATE_LAST];
+static DevPrivateSetRec global_keys[PRIVATE_LAST];
static const Bool xselinux_private[PRIVATE_LAST] = {
/* PRIVATE_XSELINUX,*/ FALSE,
@@ -91,8 +87,63 @@ static const Bool xselinux_private[PRIVATE_LAST] = {
/* [PRIVATE_PICTURE] =*/ TRUE
};
+static const char *key_names[PRIVATE_LAST] = {
+ /* XSELinux uses the same private keys for numerous objects */
+ /*[PRIVATE_XSELINUX] =*/ "XSELINUX",
+
+ /* Otherwise, you get a private in just the requested structure
+ */
+ /* These can have objects created before all of the keys are registered */
+ /*[PRIVATE_SCREEN] =*/ "SCREEN",
+ /*[PRIVATE_EXTENSION] =*/ "EXTENSION",
+ /*[PRIVATE_COLORMAP] =*/ "COLORMAP",
+ /*[PRIVATE_DEVICE] =*/ "DEVICE",
+
+ /* These cannot have any objects before all relevant keys are registered */
+ /*[PRIVATE_CLIENT] =*/ "CLIENT",
+ /*[PRIVATE_PROPERTY] =*/ "PROPERTY",
+ /*[PRIVATE_SELECTION] =*/ "SELECTION",
+ /*[PRIVATE_WINDOW] =*/ "WINDOW",
+ /*[PRIVATE_PIXMAP] =*/ "PIXMAP",
+ /*[PRIVATE_GC] =*/ "GC",
+ /*[PRIVATE_CURSOR] =*/ "CURSOR",
+ /*[PRIVATE_CURSOR_BITS] =*/ "CURSOR_BITS",
+
+ /* extension privates */
+ /*[PRIVATE_DBE_WINDOW] =*/ "DBE_WINDOW",
+ /*[PRIVATE_DAMAGE] =*/ "DAMAGE",
+ /*[PRIVATE_GLYPH] =*/ "GLYPH",
+ /*[PRIVATE_GLYPHSET] =*/ "GLYPHSET",
+ /*[PRIVATE_PICTURE] =*/ "PICTURE",
+ /*[PRIVATE_SYNC_FENCE] =*/ "SYNC_FENCE",
+};
+
+static const Bool screen_specific_private[PRIVATE_LAST] = {
+ /*[PRIVATE_XSELINUX] =*/ FALSE,
+ /*[PRIVATE_SCREEN] =*/ FALSE,
+ /*[PRIVATE_EXTENSION] =*/ FALSE,
+ /*[PRIVATE_COLORMAP] =*/ FALSE,
+ /*[PRIVATE_DEVICE] =*/ FALSE,
+ /*[PRIVATE_CLIENT] =*/ FALSE,
+ /*[PRIVATE_PROPERTY] =*/ FALSE,
+ /*[PRIVATE_SELECTION] =*/ FALSE,
+ /*[PRIVATE_WINDOW] =*/ TRUE,
+ /*[PRIVATE_PIXMAP] =*/ TRUE,
+ /*[PRIVATE_GC] =*/ TRUE,
+ /*[PRIVATE_CURSOR] =*/ FALSE,
+ /*[PRIVATE_CURSOR_BITS] =*/ FALSE,
+ /*[PRIVATE_DBE_WINDOW] =*/ FALSE,
+ /*[PRIVATE_DAMAGE] =*/ FALSE,
+ /*[PRIVATE_GLYPH] =*/ FALSE,
+ /*[PRIVATE_GLYPHSET] =*/ FALSE,
+ /*[PRIVATE_PICTURE] =*/ TRUE,
+ /*[PRIVATE_SYNC_FENCE] =*/ FALSE
+};
+
typedef Bool (*FixupFunc) (PrivatePtr *privates, int offset, unsigned bytes);
+typedef enum { FixupMove, FixupRealloc } FixupType;
+
static Bool
dixReallocPrivates(PrivatePtr *privates, int old_offset, unsigned bytes)
{
@@ -115,14 +166,72 @@ dixMovePrivates(PrivatePtr *privates, int new_offset, unsigned bytes)
}
static Bool
+fixupOneScreen(ScreenPtr pScreen, FixupFunc fixup, unsigned bytes)
+{
+ intptr_t dist;
+ char *old;
+ char *new;
+ DevPrivateKey *keyp, key;
+ DevPrivateType type;
+ int size;
+
+ old = (char *) pScreen->devPrivates;
+ size = global_keys[PRIVATE_SCREEN].offset;
+ if (!fixup (&pScreen->devPrivates, size, bytes))
+ return FALSE;
+
+ /* Screen privates can contain screen-specific private keys
+ * for other types. When they move, the linked list we use to
+ * track them gets scrambled. Fix that by computing the change
+ * in the location of each private adjusting our linked list
+ * pointers to match
+ */
+
+ new = (char *) pScreen->devPrivates;
+
+ /* Moving means everyone shifts up in the privates by 'bytes' amount,
+ * realloc means the base pointer moves
+ */
+ if (fixup == dixMovePrivates)
+ new += bytes;
+
+ dist = new - old;
+
+ if (dist) {
+ for (type = PRIVATE_XSELINUX; type < PRIVATE_LAST; type++)
+
+ /* Walk the privates list, being careful as the
+ * pointers are scrambled before we patch them.
+ */
+ for (keyp = &pScreen->screenSpecificPrivates[type].key;
+ (key = *keyp) != NULL;
+ keyp = &key->next)
+ {
+
+ /* Only mangle things if the private structure
+ * is contained within the allocation. Privates
+ * stored elsewhere will be left alone
+ */
+ if (old <= (char *) key && (char *) key < old + size)
+ {
+ /* Compute new location of key */
+ key = (DevPrivateKey) ((char *) key + dist);
+
+ /* Patch the list */
+ *keyp = key;
+ }
+ }
+ }
+ return TRUE;
+}
+
+static Bool
fixupScreens(FixupFunc fixup, unsigned bytes)
{
int s;
for (s = 0; s < screenInfo.numScreens; s++)
- if (!fixup
- (&screenInfo.screens[s]->devPrivates, keys[PRIVATE_SCREEN].offset,
- bytes))
+ if (!fixupOneScreen (screenInfo.screens[s], fixup, bytes))
return FALSE;
return TRUE;
}
@@ -131,7 +240,7 @@ static Bool
fixupServerClient(FixupFunc fixup, unsigned bytes)
{
if (serverClient)
- return fixup(&serverClient->devPrivates, keys[PRIVATE_CLIENT].offset,
+ return fixup(&serverClient->devPrivates, global_keys[PRIVATE_CLIENT].offset,
bytes);
return TRUE;
}
@@ -145,7 +254,7 @@ fixupExtensions(FixupFunc fixup, unsigned bytes)
for (major = EXTENSION_BASE; (extension = GetExtensionEntry(major));
major++)
if (!fixup
- (&extension->devPrivates, keys[PRIVATE_EXTENSION].offset, bytes))
+ (&extension->devPrivates, global_keys[PRIVATE_EXTENSION].offset, bytes))
return FALSE;
return TRUE;
}
@@ -162,19 +271,37 @@ fixupDefaultColormaps(FixupFunc fixup, unsigned bytes)
screenInfo.screens[s]->defColormap, RT_COLORMAP,
serverClient, DixCreateAccess);
if (cmap &&
- !fixup(&cmap->devPrivates, keys[PRIVATE_COLORMAP].offset, bytes))
+ !fixup(&cmap->devPrivates, screenInfo.screens[s]->screenSpecificPrivates[PRIVATE_COLORMAP].offset, bytes))
return FALSE;
}
return TRUE;
}
+static Bool
+fixupDeviceList(DeviceIntPtr device, FixupFunc fixup, unsigned bytes)
+{
+ while (device) {
+ if (!fixup(&device->devPrivates, global_keys[PRIVATE_DEVICE].offset, bytes))
+ return FALSE;
+ device = device->next;
+ }
+ return TRUE;
+}
+
+static Bool
+fixupDevices(FixupFunc fixup, unsigned bytes)
+{
+ return (fixupDeviceList(inputInfo.devices, fixup, bytes) &&
+ fixupDeviceList(inputInfo.off_devices, fixup, bytes));
+}
+
static Bool (*const allocated_early[PRIVATE_LAST]) (FixupFunc, unsigned) = {
/*PRIVATE_XSELINUX,*/ NULL,
- /*[PRIVATE_SCREEN] =*/ fixupScreens,
- /*[PRIVATE_EXTENSION] =*/ fixupExtensions,
- /*[PRIVATE_COLORMAP] =*/ fixupDefaultColormaps,
- /*PRIVATE_DEVICE,*/ NULL,
- /*[PRIVATE_CLIENT] =*/ fixupServerClient,
+ /*PRIVATE_SCREEN =*/ fixupScreens,
+ /*PRIVATE_EXTENSION =*/ fixupExtensions,
+ /*PRIVATE_COLORMAP =*/ fixupDefaultColormaps,
+ /*PRIVATE_DEVICE,*/ fixupDevices,
+ /*PRIVATE_CLIENT =*/ fixupServerClient,
/*PRIVATE_PROPERTY,*/ NULL,
/*PRIVATE_SELECTION,*/ NULL,
/*PRIVATE_WINDOW,*/ NULL,
@@ -186,9 +313,33 @@ static Bool (*const allocated_early[PRIVATE_LAST]) (FixupFunc, unsigned) = {
/*PRIVATE_DAMAGE,*/ NULL,
/*PRIVATE_GLYPH,*/ NULL,
/*PRIVATE_GLYPHSET,*/ NULL,
- /*PRIVATE_PICTURE,*/ NULL
+ /*PRIVATE_PICTURE,*/ NULL,
+ /*PRIVATE_SYNC_FENCE,*/ NULL
};
+static void
+grow_private_set(DevPrivateSetPtr set, unsigned bytes)
+{
+ DevPrivateKey k;
+
+ for (k = set->key; k; k = k->next)
+ k->offset += bytes;
+ set->offset += bytes;
+}
+
+static void
+grow_screen_specific_set(DevPrivateType type, unsigned bytes)
+{
+ int s;
+
+ /* Update offsets for all screen-specific keys */
+ for (s = 0; s < screenInfo.numScreens; s++) {
+ ScreenPtr pScreen = screenInfo.screens[s];
+
+ grow_private_set(&pScreen->screenSpecificPrivates[type], bytes);
+ }
+}
+
/*
* Register a private key. This takes the type of object the key will
* be used with, which may be PRIVATE_ALL indicating that this key
@@ -219,14 +370,13 @@ dixRegisterPrivateKey(DevPrivateKey key, DevPrivateType type, unsigned size)
/* Update offsets for all affected keys */
if (type == PRIVATE_XSELINUX) {
- DevPrivateKey k;
/* Resize if we can, or make sure nothing's allocated if we can't
*/
for (t = PRIVATE_XSELINUX; t < PRIVATE_LAST; t++)
if (xselinux_private[t]) {
if (!allocated_early[t])
- assert(!keys[t].created);
+ assert(!global_keys[t].created);
else if (!allocated_early[t] (dixReallocPrivates, bytes))
return FALSE;
}
@@ -236,12 +386,12 @@ dixRegisterPrivateKey(DevPrivateKey key, DevPrivateType type, unsigned size)
*/
for (t = PRIVATE_XSELINUX; t < PRIVATE_LAST; t++) {
if (xselinux_private[t]) {
- for (k = keys[t].key; k; k = k->next)
- k->offset += bytes;
- keys[t].offset += bytes;
+ grow_private_set(&global_keys[t], bytes);
+ grow_screen_specific_set(t, bytes);
if (allocated_early[t])
allocated_early[t] (dixMovePrivates, bytes);
}
+
}
offset = 0;
@@ -249,11 +399,12 @@ dixRegisterPrivateKey(DevPrivateKey key, DevPrivateType type, unsigned size)
else {
/* Resize if we can, or make sure nothing's allocated if we can't */
if (!allocated_early[type])
- assert(!keys[type].created);
+ assert(!global_keys[type].created);
else if (!allocated_early[type] (dixReallocPrivates, bytes))
return FALSE;
- offset = keys[type].offset;
- keys[type].offset += bytes;
+ offset = global_keys[type].offset;
+ global_keys[type].offset += bytes;
+ grow_screen_specific_set(type, bytes);
}
/* Setup this key */
@@ -262,8 +413,8 @@ dixRegisterPrivateKey(DevPrivateKey key, DevPrivateType type, unsigned size)
key->initialized = TRUE;
key->type = type;
key->allocated = FALSE;
- key->next = keys[type].key;
- keys[type].key = key;
+ key->next = global_keys[type].key;
+ global_keys[type].key = key;
return TRUE;
}
@@ -306,13 +457,15 @@ _dixGetScreenPrivateKey(const DevScreenPrivateKey key, ScreenPtr pScreen)
void
_dixInitPrivates(PrivatePtr *privates, void *addr, DevPrivateType type)
{
- keys[type].created++;
+ assert (!screen_specific_private[type]);
+
+ global_keys[type].created++;
if (xselinux_private[type])
- keys[PRIVATE_XSELINUX].created++;
- if (keys[type].offset == 0)
+ global_keys[PRIVATE_XSELINUX].created++;
+ if (global_keys[type].offset == 0)
addr = 0;
*privates = addr;
- memset(addr, '\0', keys[type].offset);
+ memset(addr, '\0', global_keys[type].offset);
}
/*
@@ -321,9 +474,9 @@ _dixInitPrivates(PrivatePtr *privates, void *addr, DevPrivateType type)
void
_dixFiniPrivates(PrivatePtr privates, DevPrivateType type)
{
- keys[type].created--;
+ global_keys[type].created--;
if (xselinux_private[type])
- keys[PRIVATE_XSELINUX].created--;
+ global_keys[PRIVATE_XSELINUX].created--;
}
/*
@@ -342,10 +495,11 @@ _dixAllocateObjectWithPrivates(unsigned baseSize, unsigned clear,
PrivatePtr *devPrivates;
assert(type > PRIVATE_SCREEN && type < PRIVATE_LAST);
+ assert(!screen_specific_private[type]);
/* round up so that void * is aligned */
baseSize = (baseSize + sizeof(void *) - 1) & ~(sizeof(void *) - 1);
- totalSize = baseSize + keys[type].offset;
+ totalSize = baseSize + global_keys[type].offset;
object = malloc(totalSize);
if (!object)
return NULL;
@@ -370,8 +524,9 @@ dixAllocatePrivates(PrivatePtr *privates, DevPrivateType type)
PrivatePtr p;
assert(type > PRIVATE_XSELINUX && type < PRIVATE_LAST);
+ assert(!screen_specific_private[type]);
- size = keys[type].offset;
+ size = global_keys[type].offset;
if (!size) {
p = NULL;
}
@@ -381,7 +536,7 @@ dixAllocatePrivates(PrivatePtr *privates, DevPrivateType type)
}
_dixInitPrivates(privates, p, type);
- ++keys[type].allocated;
+ ++global_keys[type].allocated;
return TRUE;
}
@@ -407,7 +562,7 @@ void
dixFreePrivates(PrivatePtr privates, DevPrivateType type)
{
_dixFiniPrivates(privates, type);
- --keys[type].allocated;
+ --global_keys[type].allocated;
free(privates);
}
@@ -418,8 +573,9 @@ extern _X_EXPORT int
dixPrivatesSize(DevPrivateType type)
{
assert(type >= PRIVATE_SCREEN && type < PRIVATE_LAST);
+ assert (!screen_specific_private[type]);
- return keys[type].offset;
+ return global_keys[type].offset;
}
/* Table of devPrivates offsets */
@@ -454,36 +610,136 @@ dixLookupPrivateOffset(RESTYPE type)
return -1;
}
-static const char *key_names[PRIVATE_LAST] = {
- /* XSELinux uses the same private keys for numerous objects */
- /*[PRIVATE_XSELINUX] =*/ "XSELINUX",
+/*
+ * Screen-specific privates
+ */
- /* Otherwise, you get a private in just the requested structure
- */
- /* These can have objects created before all of the keys are registered */
- /*[PRIVATE_SCREEN] =*/ "SCREEN",
- /*[PRIVATE_EXTENSION] =*/ "EXTENSION",
- /*[PRIVATE_COLORMAP] =*/ "COLORMAP",
+extern _X_EXPORT Bool
+dixRegisterScreenSpecificPrivateKey(ScreenPtr pScreen, DevPrivateKey key,
+ DevPrivateType type, unsigned size)
+{
+ int offset;
+ unsigned bytes;
- /* These cannot have any objects before all relevant keys are registered */
- /*[PRIVATE_DEVICE] =*/ "DEVICE",
- /*[PRIVATE_CLIENT] =*/ "CLIENT",
- /*[PRIVATE_PROPERTY] =*/ "PROPERTY",
- /*[PRIVATE_SELECTION] =*/ "SELECTION",
- /*[PRIVATE_WINDOW] =*/ "WINDOW",
- /*[PRIVATE_PIXMAP] =*/ "PIXMAP",
- /*[PRIVATE_GC] =*/ "GC",
- /*[PRIVATE_CURSOR] =*/ "CURSOR",
- /*[PRIVATE_CURSOR_BITS] =*/ "CURSOR_BITS",
+ if (!screen_specific_private[type])
+ FatalError("Attempt to allocate screen-specific private storage for type %s\n",
+ key_names[type]);
- /* extension privates */
- /*[PRIVATE_DBE_WINDOW] =*/ "DBE_WINDOW",
- /*[PRIVATE_DAMAGE] =*/ "DAMAGE",
- /*[PRIVATE_GLYPH] =*/ "GLYPH",
- /*[PRIVATE_GLYPHSET] =*/ "GLYPHSET",
- /*[PRIVATE_PICTURE] =*/ "PICTURE" ,
- /*[PRIVATE_SYNC_FENCE] =*/ "SYNC_FENCE"
-};
+ if (key->initialized) {
+ assert(size == key->size);
+ return TRUE;
+ }
+
+ /* Compute required space */
+ bytes = size;
+ if (size == 0)
+ bytes = sizeof(void *);
+
+ /* align to void * size */
+ bytes = (bytes + sizeof(void *) - 1) & ~(sizeof(void *) - 1);
+
+ assert (!allocated_early[type]);
+ assert (!pScreen->screenSpecificPrivates[type].created);
+ offset = pScreen->screenSpecificPrivates[type].offset;
+ pScreen->screenSpecificPrivates[type].offset += bytes;
+
+ /* Setup this key */
+ key->offset = offset;
+ key->size = size;
+ key->initialized = TRUE;
+ key->type = type;
+ key->allocated = FALSE;
+ key->next = pScreen->screenSpecificPrivates[type].key;
+ pScreen->screenSpecificPrivates[type].key = key;
+
+ return TRUE;
+}
+
+/* Clean up screen-specific privates before CloseScreen */
+void
+dixFreeScreenSpecificPrivates(ScreenPtr pScreen)
+{
+}
+
+/* Initialize screen-specific privates in AddScreen */
+void
+dixInitScreenSpecificPrivates(ScreenPtr pScreen)
+{
+ DevPrivateType t;
+
+ for (t = PRIVATE_XSELINUX; t < PRIVATE_LAST; t++)
+ pScreen->screenSpecificPrivates[t].offset = global_keys[t].offset;
+}
+
+/* Initialize screen-specific privates in AddScreen */
+void
+_dixInitScreenPrivates(ScreenPtr pScreen, PrivatePtr *privates, void *addr, DevPrivateType type)
+{
+ int privates_size;
+ assert (screen_specific_private[type]);
+
+ if (pScreen) {
+ privates_size = pScreen->screenSpecificPrivates[type].offset;
+ pScreen->screenSpecificPrivates[type].created++;
+ }
+ else
+ privates_size = global_keys[type].offset;
+
+ global_keys[type].created++;
+ if (xselinux_private[type])
+ global_keys[PRIVATE_XSELINUX].created++;
+ if (privates_size == 0)
+ addr = 0;
+ *privates = addr;
+ memset(addr, '\0', privates_size);
+}
+
+void *
+_dixAllocateScreenObjectWithPrivates(ScreenPtr pScreen,
+ unsigned baseSize,
+ unsigned clear,
+ unsigned offset,
+ DevPrivateType type)
+{
+ unsigned totalSize;
+ void *object;
+ PrivatePtr privates;
+ PrivatePtr *devPrivates;
+ int privates_size;
+
+ assert(type > PRIVATE_SCREEN && type < PRIVATE_LAST);
+ assert (screen_specific_private[type]);
+
+ if (pScreen)
+ privates_size = pScreen->screenSpecificPrivates[type].offset;
+ else
+ privates_size = global_keys[type].offset;
+ /* round up so that void * is aligned */
+ baseSize = (baseSize + sizeof(void *) - 1) & ~(sizeof(void *) - 1);
+ totalSize = baseSize + privates_size;
+ object = malloc(totalSize);
+ if (!object)
+ return NULL;
+
+ memset(object, '\0', clear);
+ privates = (PrivatePtr) (((char *) object) + baseSize);
+ devPrivates = (PrivatePtr *) ((char *) object + offset);
+
+ _dixInitScreenPrivates(pScreen, devPrivates, privates, type);
+
+ return object;
+}
+
+int
+dixScreenSpecificPrivatesSize(ScreenPtr pScreen, DevPrivateType type)
+{
+ assert(type >= PRIVATE_SCREEN && type < PRIVATE_LAST);
+
+ if (screen_specific_private[type])
+ return pScreen->screenSpecificPrivates[type].offset;
+ else
+ return global_keys[type].offset;
+}
void
dixPrivateUsage(void)
@@ -494,14 +750,14 @@ dixPrivateUsage(void)
DevPrivateType t;
for (t = PRIVATE_XSELINUX + 1; t < PRIVATE_LAST; t++) {
- if (keys[t].offset) {
+ if (global_keys[t].offset) {
ErrorF
("%s: %d objects of %d bytes = %d total bytes %d private allocs\n",
- key_names[t], keys[t].created, keys[t].offset,
- keys[t].created * keys[t].offset, keys[t].allocated);
- bytes += keys[t].created * keys[t].offset;
- objects += keys[t].created;
- alloc += keys[t].allocated;
+ key_names[t], global_keys[t].created, global_keys[t].offset,
+ global_keys[t].created * global_keys[t].offset, global_keys[t].allocated);
+ bytes += global_keys[t].created * global_keys[t].offset;
+ objects += global_keys[t].created;
+ alloc += global_keys[t].allocated;
}
}
ErrorF("TOTAL: %d objects, %d bytes, %d allocs\n", objects, bytes, alloc);
@@ -515,7 +771,7 @@ dixResetPrivates(void)
for (t = PRIVATE_XSELINUX; t < PRIVATE_LAST; t++) {
DevPrivateKey key, next;
- for (key = keys[t].key; key; key = next) {
+ for (key = global_keys[t].key; key; key = next) {
next = key->next;
key->offset = 0;
key->initialized = FALSE;
@@ -524,14 +780,14 @@ dixResetPrivates(void)
if (key->allocated)
free(key);
}
- if (keys[t].created) {
+ if (global_keys[t].created) {
ErrorF("%d %ss still allocated at reset\n",
- keys[t].created, key_names[t]);
+ global_keys[t].created, key_names[t]);
dixPrivateUsage();
}
- keys[t].key = NULL;
- keys[t].offset = 0;
- keys[t].created = 0;
- keys[t].allocated = 0;
+ global_keys[t].key = NULL;
+ global_keys[t].offset = 0;
+ global_keys[t].created = 0;
+ global_keys[t].allocated = 0;
}
}