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Split up memory for devices configured in the config file.

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If we're using a continuous block here, we segfault when a device removal
triggers an xfree call.
This commit is contained in:
Peter Hutterer 2007-06-13 15:28:15 +09:30
parent b141b85c25
commit 93ca526892
3 changed files with 69 additions and 53 deletions
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106
hw/xfree86/common/xf86Config.c
View File

@ -442,7 +442,7 @@ xf86InputDriverlistFromConfig()
{
int count = 0;
char **modulearray;
IDevPtr idp;
IDevPtr* idp;
/*
* make sure the config file has been parsed and that we have a
@ -460,7 +460,7 @@ xf86InputDriverlistFromConfig()
*/
if (xf86ConfigLayout.inputs) {
idp = xf86ConfigLayout.inputs;
while (idp->identifier) {
while (*idp) {
count++;
idp++;
}
@ -475,8 +475,8 @@ xf86InputDriverlistFromConfig()
modulearray = xnfalloc((count + 1) * sizeof(char*));
count = 0;
idp = xf86ConfigLayout.inputs;
while (idp->identifier) {
modulearray[count] = idp->driver;
while (idp && *idp) {
modulearray[count] = (*idp)->driver;
count++;
idp++;
}
@ -1185,7 +1185,8 @@ checkCoreInputDevices(serverLayoutPtr servlayoutp, Bool implicitLayout)
IDevPtr corePointer = NULL, coreKeyboard = NULL;
Bool foundPointer = FALSE, foundKeyboard = FALSE;
const char *pointerMsg = NULL, *keyboardMsg = NULL;
IDevPtr indp, i;
IDevPtr *devs, /* iterator */
indp;
IDevRec Pointer, Keyboard;
XF86ConfInputPtr confInput;
XF86ConfInputRec defPtr, defKbd;
@ -1198,7 +1199,8 @@ checkCoreInputDevices(serverLayoutPtr servlayoutp, Bool implicitLayout)
* in the active ServerLayout. If more than one is specified for either,
* remove the core attribute from the later ones.
*/
for (indp = servlayoutp->inputs; indp->identifier; indp++) {
for (devs = servlayoutp->inputs; devs && *devs; devs++) {
indp = *devs;
pointer opt1 = NULL, opt2 = NULL;
if (indp->commonOptions &&
xf86CheckBoolOption(indp->commonOptions, "CorePointer", FALSE)) {
@ -1263,11 +1265,15 @@ checkCoreInputDevices(serverLayoutPtr servlayoutp, Bool implicitLayout)
* removed.
*/
if (corePointer) {
for (indp = servlayoutp->inputs; indp->identifier; indp++)
if (indp == corePointer)
for (devs = servlayoutp->inputs; devs && *devs; devs++)
if (*devs == corePointer)
{
xfree(*devs);
*devs = (IDevPtr)0x1; /* ensure we dont skip next loop*/
break;
for (; indp->identifier; indp++)
indp[0] = indp[1];
}
for (; devs && *devs; devs++)
devs[0] = devs[1];
count--;
}
corePointer = NULL;
@ -1327,13 +1333,14 @@ checkCoreInputDevices(serverLayoutPtr servlayoutp, Bool implicitLayout)
foundPointer = configInput(&Pointer, confInput, from);
if (foundPointer) {
count++;
indp = xnfrealloc(servlayoutp->inputs,
(count + 1) * sizeof(IDevRec));
indp[count - 1] = Pointer;
indp[count - 1].extraOptions =
devs = xnfrealloc(servlayoutp->inputs,
(count + 1) * sizeof(IDevPtr));
devs[count - 1] = xnfalloc(sizeof(IDevRec));
*devs[count - 1] = Pointer;
devs[count - 1]->extraOptions =
xf86addNewOption(NULL, xnfstrdup("CorePointer"), NULL);
indp[count].identifier = NULL;
servlayoutp->inputs = indp;
devs[count]->identifier = NULL;
servlayoutp->inputs = devs;
}
}
@ -1351,9 +1358,9 @@ checkCoreInputDevices(serverLayoutPtr servlayoutp, Bool implicitLayout)
* If you're using an evdev keyboard and expect a default mouse
* section ... deal.
*/
for (i = servlayoutp->inputs; i->identifier && i->driver; i++) {
if (!strcmp(i->driver, "void") || !strcmp(i->driver, "mouse") ||
!strcmp(i->driver, "vmmouse") || !strcmp(i->driver, "evdev")) {
for (devs = servlayoutp->inputs; devs && *devs; devs++) {
if (!strcmp((*devs)->driver, "void") || !strcmp((*devs)->driver, "mouse") ||
!strcmp((*devs)->driver, "vmmouse") || !strcmp((*devs)->driver, "evdev")) {
found = 1; break;
}
}
@ -1366,13 +1373,14 @@ checkCoreInputDevices(serverLayoutPtr servlayoutp, Bool implicitLayout)
foundPointer = configInput(&Pointer, confInput, from);
if (foundPointer) {
count++;
indp = xnfrealloc(servlayoutp->inputs,
(count + 1) * sizeof(IDevRec));
indp[count - 1] = Pointer;
indp[count - 1].extraOptions =
devs = xnfrealloc(servlayoutp->inputs,
(count + 1) * sizeof(IDevPtr));
devs[count - 1] = xnfalloc(sizeof(IDevRec));
*devs[count - 1] = Pointer;
devs[count - 1]->extraOptions =
xf86addNewOption(NULL, xnfstrdup("AlwaysCore"), NULL);
indp[count].identifier = NULL;
servlayoutp->inputs = indp;
devs[count]->identifier = NULL;
servlayoutp->inputs = devs;
}
}
@ -1393,11 +1401,15 @@ checkCoreInputDevices(serverLayoutPtr servlayoutp, Bool implicitLayout)
* removed.
*/
if (coreKeyboard) {
for (indp = servlayoutp->inputs; indp->identifier; indp++)
if (indp == coreKeyboard)
for (devs = servlayoutp->inputs; devs && *devs; devs++)
if (*devs == coreKeyboard)
{
xfree(*devs);
*devs = (IDevPtr)0x1; /* ensure we dont skip next loop */
break;
for (; indp->identifier; indp++)
indp[0] = indp[1];
}
for (; devs && *devs; devs++)
devs[0] = devs[1];
count--;
}
coreKeyboard = NULL;
@ -1457,13 +1469,14 @@ checkCoreInputDevices(serverLayoutPtr servlayoutp, Bool implicitLayout)
foundKeyboard = configInput(&Keyboard, confInput, from);
if (foundKeyboard) {
count++;
indp = xnfrealloc(servlayoutp->inputs,
(count + 1) * sizeof(IDevRec));
indp[count - 1] = Keyboard;
indp[count - 1].extraOptions =
devs = xnfrealloc(servlayoutp->inputs,
(count + 1) * sizeof(IDevPtr));
devs[count - 1] = xnfalloc(sizeof(IDevRec));
*devs[count - 1] = Keyboard;
devs[count - 1]->extraOptions =
xf86addNewOption(NULL, xnfstrdup("CoreKeyboard"), NULL);
indp[count].identifier = NULL;
servlayoutp->inputs = indp;
devs[count]->identifier = NULL;
servlayoutp->inputs = devs;
}
}
@ -1519,7 +1532,7 @@ configLayout(serverLayoutPtr servlayoutp, XF86ConfLayoutPtr conf_layout,
MessageType from;
screenLayoutPtr slp;
GDevPtr gdp;
IDevPtr indp;
IDevPtr* indp;
int i = 0, j;
if (!servlayoutp)
@ -1731,16 +1744,19 @@ configLayout(serverLayoutPtr servlayoutp, XF86ConfLayoutPtr conf_layout,
ErrorF("Found %d input devices in the layout section %s",
count, conf_layout->lay_identifier);
#endif
indp = xnfalloc((count + 1) * sizeof(IDevRec));
indp[count].identifier = NULL;
indp = xnfcalloc((count + 1), sizeof(IDevPtr));
indp[count] = NULL;
irp = conf_layout->lay_input_lst;
count = 0;
while (irp) {
if (!configInput(&indp[count], irp->iref_inputdev, X_CONFIG)) {
xfree(indp);
return FALSE;
indp[count] = xnfalloc(sizeof(IDevRec));
if (!configInput(indp[count], irp->iref_inputdev, X_CONFIG)) {
while(count--)
xfree(indp[count]);
xfree(indp);
return FALSE;
}
indp[count].extraOptions = irp->iref_option_lst;
indp[count]->extraOptions = irp->iref_option_lst;
count++;
irp = (XF86ConfInputrefPtr)irp->list.next;
}
@ -1764,7 +1780,7 @@ configImpliedLayout(serverLayoutPtr servlayoutp, XF86ConfScreenPtr conf_screen)
MessageType from;
XF86ConfScreenPtr s;
screenLayoutPtr slp;
IDevPtr indp;
IDevPtr *indp;
if (!servlayoutp)
return FALSE;
@ -1806,8 +1822,8 @@ configImpliedLayout(serverLayoutPtr servlayoutp, XF86ConfScreenPtr conf_screen)
servlayoutp->inactives = xnfcalloc(1, sizeof(GDevRec));
servlayoutp->options = NULL;
/* Set up an empty input device list, then look for some core devices. */
indp = xnfalloc(sizeof(IDevRec));
indp->identifier = NULL;
indp = xnfalloc(sizeof(IDevPtr));
*indp = NULL;
servlayoutp->inputs = indp;
if (!xf86Info.allowEmptyInput && !checkCoreInputDevices(servlayoutp, TRUE))
return FALSE;

14
hw/xfree86/common/xf86Init.c
View File

@ -981,7 +981,7 @@ InitInput(argc, argv)
int argc;
char **argv;
{
IDevPtr pDev;
IDevPtr* pDev;
InputDriverPtr pDrv;
InputInfoPtr pInfo;
@ -990,9 +990,9 @@ InitInput(argc, argv)
if (serverGeneration == 1) {
/* Call the PreInit function for each input device instance. */
for (pDev = xf86ConfigLayout.inputs; pDev && pDev->identifier; pDev++) {
if ((pDrv = xf86LookupInputDriver(pDev->driver)) == NULL) {
xf86Msg(X_ERROR, "No Input driver matching `%s'\n", pDev->driver);
for (pDev = xf86ConfigLayout.inputs; pDev && *pDev; pDev++) {
if ((pDrv = xf86LookupInputDriver((*pDev)->driver)) == NULL) {
xf86Msg(X_ERROR, "No Input driver matching `%s'\n", (*pDev)->driver);
/* XXX For now, just continue. */
continue;
}
@ -1002,14 +1002,14 @@ InitInput(argc, argv)
pDrv->driverName);
continue;
}
pInfo = pDrv->PreInit(pDrv, pDev, 0);
pInfo = pDrv->PreInit(pDrv, *pDev, 0);
if (!pInfo) {
xf86Msg(X_ERROR, "PreInit returned NULL for \"%s\"\n",
pDev->identifier);
(*pDev)->identifier);
continue;
} else if (!(pInfo->flags & XI86_CONFIGURED)) {
xf86Msg(X_ERROR, "PreInit failed for input device \"%s\"\n",
pDev->identifier);
(*pDev)->identifier);
xf86DeleteInput(pInfo, 0);
continue;
}

2
hw/xfree86/common/xf86str.h
View File

@ -526,7 +526,7 @@ typedef struct _serverlayoutrec {
char * id;
screenLayoutPtr screens;
GDevPtr inactives;
IDevPtr inputs;
IDevPtr* inputs; /* NULL terminated */
pointer options;
} serverLayoutRec, *serverLayoutPtr;