xfree86: Provide xf86BlockSIGIO and xf86ReleaseSIGIO as wrappers for input mutex
Threaded input doesn't use SIGIO anymore, but existing drivers using xf86BlockSIGIO and xf86ReleaseSIGIO probably want to lock the input mutex during those operations. Provide inline functions to do this which are marked as 'deprecated' so that drivers will get warnings until they are changed. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
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@ -93,6 +93,10 @@ extern _X_EXPORT Bool VTSwitchEnabled; /* kbd driver */
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#define PIX24TOBPP(p) (((p) == Pix24Use24) ? 24 : \
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(((p) == Pix24Use32) ? 32 : 0))
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/* Compatibility functions for pre-input-thread drivers */
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static inline _X_DEPRECATED int xf86BlockSIGIO(void) { input_lock(); return 0; }
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static inline _X_DEPRECATED void xf86UnblockSIGIO(int wasset) { input_unlock(); }
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/* Function Prototypes */
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#ifndef _NO_XF86_PROTOTYPES
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@ -131,7 +131,7 @@ xf86IsPipe(int fd)
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}
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static void
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xf86BlockSIGIO(void)
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block_sigio(void)
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{
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sigset_t set;
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@ -141,7 +141,7 @@ xf86BlockSIGIO(void)
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}
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static void
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xf86ReleaseSIGIO(void)
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release_sigio(void)
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{
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sigset_t set;
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@ -165,7 +165,7 @@ xf86InstallSIGIOHandler(int fd, void (*f) (int, void *), void *closure)
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if (!xf86SigIOFuncs[i].f) {
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if (xf86IsPipe(fd))
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return 0;
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xf86BlockSIGIO();
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block_sigio();
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#ifdef O_ASYNC
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if (fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_ASYNC) == -1) {
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xf86Msg(X_WARNING, "fcntl(%d, O_ASYNC): %s\n",
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@ -193,7 +193,7 @@ xf86InstallSIGIOHandler(int fd, void (*f) (int, void *), void *closure)
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}
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#endif
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if (!installed) {
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xf86ReleaseSIGIO();
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release_sigio();
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return 0;
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}
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sigemptyset(&sa.sa_mask);
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@ -209,7 +209,7 @@ xf86InstallSIGIOHandler(int fd, void (*f) (int, void *), void *closure)
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if (fd >= xf86SigIOMaxFd)
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xf86SigIOMaxFd = fd + 1;
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FD_SET(fd, &xf86SigIOMask);
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xf86ReleaseSIGIO();
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release_sigio();
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return 1;
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}
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/* Allow overwriting of the closure and callback */
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