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path: root/xorg-server/hw/dmx/input/dmxsigio.c
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Diffstat (limited to 'xorg-server/hw/dmx/input/dmxsigio.c')
-rw-r--r--xorg-server/hw/dmx/input/dmxsigio.c115
1 files changed, 69 insertions, 46 deletions
diff --git a/xorg-server/hw/dmx/input/dmxsigio.c b/xorg-server/hw/dmx/input/dmxsigio.c
index 03c3070d7..9b1b493b8 100644
--- a/xorg-server/hw/dmx/input/dmxsigio.c
+++ b/xorg-server/hw/dmx/input/dmxsigio.c
@@ -47,36 +47,37 @@
#include <unistd.h>
#include <fcntl.h>
-static int dmxFdCount = 0;
+static int dmxFdCount = 0;
static Bool dmxInputEnabled = TRUE;
/* Define equivalents for non-POSIX systems (e.g., SGI IRIX, Solaris) */
#ifndef O_ASYNC
-# ifdef FASYNC
-# define O_ASYNC FASYNC
-# else
-# define O_ASYNC 0
-# endif
+#ifdef FASYNC
+#define O_ASYNC FASYNC
+#else
+#define O_ASYNC 0
+#endif
#endif
#ifndef O_NONBLOCK
#define O_NONBLOCK FNONBLK
#endif
-static void dmxSigioHandler(int sig)
+static void
+dmxSigioHandler(int sig)
{
- int i, j;
+ int i, j;
DMXInputInfo *dmxInput;
for (i = 0, dmxInput = &dmxInputs[0]; i < dmxNumInputs; i++, dmxInput++) {
if (dmxInput->sigioState == DMX_ACTIVESIGIO) {
for (j = 0; j < dmxInput->numDevs; j++) {
DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[j];
+
if (dmxLocal->collect_events) {
dmxLocal->collect_events(&dmxLocal->pDevice->public,
dmxMotion,
dmxEnqueue,
- dmxCheckSpecialKeys,
- DMX_NO_BLOCK);
+ dmxCheckSpecialKeys, DMX_NO_BLOCK);
}
}
}
@@ -84,7 +85,8 @@ static void dmxSigioHandler(int sig)
}
/** Block SIGIO handling. */
-void dmxSigioBlock(void)
+void
+dmxSigioBlock(void)
{
sigset_t s;
@@ -94,7 +96,8 @@ void dmxSigioBlock(void)
}
/** Unblock SIGIO handling. */
-void dmxSigioUnblock(void)
+void
+dmxSigioUnblock(void)
{
sigset_t s;
@@ -103,10 +106,11 @@ void dmxSigioUnblock(void)
sigprocmask(SIG_UNBLOCK, &s, 0);
}
-static void dmxSigioHook(void)
+static void
+dmxSigioHook(void)
{
struct sigaction a;
- sigset_t s;
+ sigset_t s;
memset(&a, 0, sizeof(a));
a.sa_handler = dmxSigioHandler;
@@ -115,81 +119,95 @@ static void dmxSigioHook(void)
sigaddset(&a.sa_mask, SIGALRM);
sigaddset(&a.sa_mask, SIGVTALRM);
sigaction(SIGIO, &a, 0);
-
+
sigemptyset(&s);
sigprocmask(SIG_SETMASK, &s, 0);
}
-static void dmxSigioUnhook(void)
+static void
+dmxSigioUnhook(void)
{
struct sigaction a;
- memset (&a, 0, sizeof(a));
+ memset(&a, 0, sizeof(a));
a.sa_handler = SIG_IGN;
sigemptyset(&a.sa_mask);
sigaction(SIGIO, &a, 0);
}
-static void dmxSigioAdd(DMXInputInfo *dmxInput)
+static void
+dmxSigioAdd(DMXInputInfo * dmxInput)
{
int flags;
int i;
switch (dmxInput->sigioState) {
- case DMX_NOSIGIO: return;
- case DMX_USESIGIO: dmxInput->sigioState = DMX_ACTIVESIGIO; break;
- case DMX_ACTIVESIGIO: return;
+ case DMX_NOSIGIO:
+ return;
+ case DMX_USESIGIO:
+ dmxInput->sigioState = DMX_ACTIVESIGIO;
+ break;
+ case DMX_ACTIVESIGIO:
+ return;
}
for (i = 0; i < dmxInput->sigioFdCount; i++) {
if (!dmxInput->sigioAdded[i]) {
int fd = dmxInput->sigioFd[i];
-
+
fcntl(fd, F_SETOWN, getpid());
flags = fcntl(fd, F_GETFL);
- flags |= O_ASYNC|O_NONBLOCK;
+ flags |= O_ASYNC | O_NONBLOCK;
fcntl(fd, F_SETFL, flags);
-
+
AddEnabledDevice(fd);
dmxInput->sigioAdded[i] = TRUE;
- if (++dmxFdCount == 1) dmxSigioHook();
+ if (++dmxFdCount == 1)
+ dmxSigioHook();
}
}
}
-static void dmxSigioRemove(DMXInputInfo *dmxInput)
+static void
+dmxSigioRemove(DMXInputInfo * dmxInput)
{
int flags;
int i;
-
+
switch (dmxInput->sigioState) {
- case DMX_NOSIGIO: return;
- case DMX_USESIGIO: return;
- case DMX_ACTIVESIGIO: dmxInput->sigioState = DMX_USESIGIO; break;
+ case DMX_NOSIGIO:
+ return;
+ case DMX_USESIGIO:
+ return;
+ case DMX_ACTIVESIGIO:
+ dmxInput->sigioState = DMX_USESIGIO;
+ break;
}
for (i = 0; i < dmxInput->sigioFdCount; i++) {
if (dmxInput->sigioAdded[i]) {
int fd = dmxInput->sigioFd[i];
-
+
dmxInput->sigioAdded[i] = FALSE;
RemoveEnabledDevice(fd);
-
+
flags = fcntl(fd, F_GETFL);
- flags &= ~(O_ASYNC|O_NONBLOCK);
+ flags &= ~(O_ASYNC | O_NONBLOCK);
fcntl(fd, F_SETFL, flags);
- if (!--dmxFdCount) dmxSigioUnhook();
+ if (!--dmxFdCount)
+ dmxSigioUnhook();
}
}
}
/** Enable SIGIO handling. This instantiates the handler with the OS. */
-void dmxSigioEnableInput(void)
+void
+dmxSigioEnableInput(void)
{
- int i;
- DMXInputInfo *dmxInput;
+ int i;
+ DMXInputInfo *dmxInput;
dmxInputEnabled = TRUE;
for (i = 0, dmxInput = &dmxInputs[0]; i < dmxNumInputs; i++, dmxInput++)
@@ -197,10 +215,11 @@ void dmxSigioEnableInput(void)
}
/** Disable SIGIO handling. This removes the hanlder from the OS. */
-void dmxSigioDisableInput(void)
+void
+dmxSigioDisableInput(void)
{
- int i;
- DMXInputInfo *dmxInput;
+ int i;
+ DMXInputInfo *dmxInput;
dmxInputEnabled = FALSE;
for (i = 0, dmxInput = &dmxInputs[0]; i < dmxNumInputs; i++, dmxInput++)
@@ -211,23 +230,27 @@ void dmxSigioDisableInput(void)
* using the file descriptor \a fd for SIGIO signals. Calls
* AddEnabledDevice ifi SIGIO handling has been enabled with
* #dmxSigioEnableInput(). */
-void dmxSigioRegister(DMXInputInfo *dmxInput, int fd)
+void
+dmxSigioRegister(DMXInputInfo * dmxInput, int fd)
{
dmxInput->sigioState = DMX_USESIGIO;
if (dmxInput->sigioFdCount >= DMX_MAX_SIGIO_FDS)
dmxLog(dmxFatal, "Too many SIGIO file descriptors (%d >= %d)\n",
dmxInput->sigioFdCount, DMX_MAX_SIGIO_FDS);
-
+
dmxInput->sigioFd[dmxInput->sigioFdCount++] = fd;
- if (dmxInputEnabled) dmxSigioAdd(dmxInput);
+ if (dmxInputEnabled)
+ dmxSigioAdd(dmxInput);
}
/** Remove the notes that \a dmxInput is using any file descriptors for
* SIGIO signals. Calls RemoveEnabledDevice. */
-void dmxSigioUnregister(DMXInputInfo *dmxInput)
+void
+dmxSigioUnregister(DMXInputInfo * dmxInput)
{
- if (dmxInput->sigioState == DMX_NOSIGIO) return;
+ if (dmxInput->sigioState == DMX_NOSIGIO)
+ return;
dmxSigioRemove(dmxInput);
- dmxInput->sigioState = DMX_NOSIGIO;
+ dmxInput->sigioState = DMX_NOSIGIO;
dmxInput->sigioFdCount = 0;
}