xfree86: drop ddx-specific SIGIO blocking

The hooks are left for this cycle, we can drop it next cycle once the
drivers that need it (e.g. wacom) have been updated.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>

hw/xfree86/common/xf86Cursor.c

@@ -199,7 +199,7 @@ xf86SwitchMode(ScreenPtr pScreen, DisplayModePtr mode)
     ScrnInfoPtr pScr = xf86ScreenToScrn(pScreen);
     ScreenPtr pCursorScreen;
     Bool Switched;
-    int px, py, was_blocked;
+    int px, py;
     DeviceIntPtr dev, it;
 
     if (!pScr->vtSema || !mode || !pScr->SwitchMode)
@@ -228,7 +228,7 @@ xf86SwitchMode(ScreenPtr pScreen, DisplayModePtr mode)
     if (pScreen == pCursorScreen)
         miPointerGetPosition(dev, &px, &py);
 
-    was_blocked = xf86BlockSIGIO();
+    OsBlockSIGIO();
     Switched = (*pScr->SwitchMode) (pScr, mode);
     if (Switched) {
         pScr->currentMode = mode;
@@ -267,7 +267,7 @@ xf86SwitchMode(ScreenPtr pScreen, DisplayModePtr mode)
             pScr->frameY1 = pScr->virtualY - 1;
         }
     }
-    xf86UnblockSIGIO(was_blocked);
+    OsReleaseSIGIO();
 
     if (pScr->AdjustFrame)
         (*pScr->AdjustFrame) (pScr, pScr->frameX0, pScr->frameY0);
@@ -469,13 +469,11 @@ xf86CrossScreen(ScreenPtr pScreen, Bool entering)
 static void
 xf86WarpCursor(DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
 {
-    int sigstate;
-
-    sigstate = xf86BlockSIGIO();
+    OsBlockSIGIO();
     miPointerWarpCursor(pDev, pScreen, x, y);
 
     xf86Info.currentScreen = pScreen;
-    xf86UnblockSIGIO(sigstate);
+    OsReleaseSIGIO();
 }
 
 void *

hw/xfree86/common/xf86Events.c

@@ -254,7 +254,7 @@ xf86Wakeup(pointer blockData, int err, pointer pReadmask)
             while (pInfo) {
                 if (pInfo->read_input && pInfo->fd >= 0 &&
                     (FD_ISSET(pInfo->fd, &devicesWithInput) != 0)) {
-                    int sigstate = xf86BlockSIGIO();
+                    OsBlockSIGIO();
 
                     /*
                      * Remove the descriptior from the set because more than one
@@ -263,7 +263,7 @@ xf86Wakeup(pointer blockData, int err, pointer pReadmask)
                     FD_CLR(pInfo->fd, &devicesWithInput);
 
                     pInfo->read_input(pInfo);
-                    xf86UnblockSIGIO(sigstate);
+                    OsReleaseSIGIO();
                 }
                 pInfo = pInfo->next;
             }
@@ -397,9 +397,9 @@ xf86ReleaseKeys(DeviceIntPtr pDev)
     for (i = keyc->xkbInfo->desc->min_key_code;
          i < keyc->xkbInfo->desc->max_key_code; i++) {
         if (key_is_down(pDev, i, KEY_POSTED)) {
-            sigstate = xf86BlockSIGIO();
+            OsBlockSIGIO();
             QueueKeyboardEvents(pDev, KeyRelease, i, NULL);
-            xf86UnblockSIGIO(sigstate);
+            OsReleaseSIGIO();
         }
     }
 }
@@ -457,7 +457,7 @@ xf86VTSwitch(void)
             }
         }
 
-        prevSIGIO = xf86BlockSIGIO();
+        OsBlockSIGIO();
         for (i = 0; i < xf86NumScreens; i++)
             xf86Screens[i]->LeaveVT(xf86Screens[i]);
 
@@ -492,7 +492,7 @@ xf86VTSwitch(void)
             for (ih = InputHandlers; ih; ih = ih->next)
                 xf86EnableInputHandler(ih);
 
-            xf86UnblockSIGIO(prevSIGIO);
+            OsReleaseSIGIO();
 
         }
         else {
@@ -549,7 +549,7 @@ xf86VTSwitch(void)
         for (ih = InputHandlers; ih; ih = ih->next)
             xf86EnableInputHandler(ih);
 
-        xf86UnblockSIGIO(prevSIGIO);
+        OsReleaseSIGIO();
     }
 }
 

hw/xfree86/common/xf86Init.c

@@ -394,7 +394,7 @@ InstallSignalHandlers(void)
 void
 InitOutput(ScreenInfo * pScreenInfo, int argc, char **argv)
 {
-    int i, j, k, scr_index, was_blocked = 0;
+    int i, j, k, scr_index;
     char **modulelist;
     pointer *optionlist;
     Pix24Flags screenpix24, pix24;
@@ -806,7 +806,7 @@ InitOutput(ScreenInfo * pScreenInfo, int argc, char **argv)
             ioctl(xf86Info.consoleFd, VT_RELDISP, VT_ACKACQ);
 #endif
             xf86AccessEnter();
-            was_blocked = xf86BlockSIGIO();
+            OsBlockSIGIO();
         }
     }
 
@@ -879,7 +879,7 @@ InitOutput(ScreenInfo * pScreenInfo, int argc, char **argv)
     }
 
     xf86VGAarbiterWrapFunctions();
-    xf86UnblockSIGIO(was_blocked);
+    OsReleaseSIGIO();
 
     xf86InitOrigins();
 
@@ -964,7 +964,7 @@ OsVendorInit(void)
     }
 #endif
 #endif
-    xf86UnblockSIGIO(0);
+    OsReleaseSIGIO();
 
     beenHere = TRUE;
 }
@@ -1023,7 +1023,7 @@ AbortDDX(enum ExitCode error)
 {
     int i;
 
-    xf86BlockSIGIO();
+    OsBlockSIGIO();
 
     /*
      * try to restore the original video state

hw/xfree86/common/xf86PM.c

@@ -92,8 +92,6 @@ eventName(pmEvent event, const char **str)
     }
 }
 
-static int sigio_blocked_for_suspend;
-
 static void
 suspend(pmEvent event, Bool undo)
 {
@@ -109,7 +107,7 @@ suspend(pmEvent event, Bool undo)
         DisableDevice(pInfo->dev, TRUE);
         pInfo = pInfo->next;
     }
-    sigio_blocked_for_suspend = xf86BlockSIGIO();
+    OsBlockSIGIO();
     for (i = 0; i < xf86NumScreens; i++) {
         if (xf86Screens[i]->PMEvent)
             xf86Screens[i]->PMEvent(xf86Screens[i], event, undo);
@@ -137,7 +135,7 @@ resume(pmEvent event, Bool undo)
             xf86Screens[i]->EnterVT(xf86Screens[i]);
         }
     }
-    xf86UnblockSIGIO(sigio_blocked_for_suspend);
+    OsReleaseSIGIO();
     for (i = 0; i < xf86NumScreens; i++) {
         if (xf86Screens[i]->EnableDisableFBAccess)
             (*xf86Screens[i]->EnableDisableFBAccess) (xf86Screens[i], TRUE);
@@ -153,7 +151,7 @@ resume(pmEvent event, Bool undo)
 static void
 DoApmEvent(pmEvent event, Bool undo)
 {
-    int i, was_blocked;
+    int i;
 
     switch (event) {
 #if 0
@@ -184,13 +182,13 @@ DoApmEvent(pmEvent event, Bool undo)
         }
         break;
     default:
-        was_blocked = xf86BlockSIGIO();
+        OsBlockSIGIO();
         for (i = 0; i < xf86NumScreens; i++) {
             if (xf86Screens[i]->PMEvent) {
                 xf86Screens[i]->PMEvent(xf86Screens[i], event, undo);
             }
         }
-        xf86UnblockSIGIO(was_blocked);
+        OsReleaseSIGIO();
         break;
     }
 }

hw/xfree86/os-support/shared/sigio.c

@@ -132,7 +132,6 @@ xf86InstallSIGIOHandler(int fd, void (*f) (int, void *), void *closure)
     struct sigaction sa;
     struct sigaction osa;
     int i;
-    int blocked;
     int installed = FALSE;
 
     if (!xf86Info.useSIGIO)
@@ -142,7 +141,7 @@ xf86InstallSIGIOHandler(int fd, void (*f) (int, void *), void *closure)
         if (!xf86SigIOFuncs[i].f) {
             if (xf86IsPipe(fd))
                 return 0;
-            blocked = xf86BlockSIGIO();
+            OsBlockSIGIO();
 #ifdef O_ASYNC
             if (fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_ASYNC) == -1) {
                 xf86Msg(X_WARNING, "fcntl(%d, O_ASYNC): %s\n",
@@ -170,7 +169,7 @@ xf86InstallSIGIOHandler(int fd, void (*f) (int, void *), void *closure)
             }
 #endif
             if (!installed) {
-                xf86UnblockSIGIO(blocked);
+                OsReleaseSIGIO();
                 return 0;
             }
             sigemptyset(&sa.sa_mask);
@@ -186,7 +185,7 @@ xf86InstallSIGIOHandler(int fd, void (*f) (int, void *), void *closure)
             if (fd >= xf86SigIOMaxFd)
                 xf86SigIOMaxFd = fd + 1;
             FD_SET(fd, &xf86SigIOMask);
-            xf86UnblockSIGIO(blocked);
+            OsReleaseSIGIO();
             return 1;
         }
         /* Allow overwriting of the closure and callback */