[PATCH xf86-input-joystick 2/3] Add a generic jstkCloseDevice helper function

[Hans de Goede]

This is a preparation patch for adding support for server managed fds.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 src/backend_bsd.c      |  5 +----
 src/backend_evdev.c    |  5 +----
 src/backend_joystick.c | 30 +++++-------------------------
 src/jstk.c             | 18 ++++++++++++++++++
 src/jstk.h             |  2 ++
 5 files changed, 27 insertions(+), 33 deletions(-)

diff --git a/src/backend_bsd.c b/src/backend_bsd.c
index 9fa3035..f3f501e 100644
--- a/src/backend_bsd.c
+++ b/src/backend_bsd.c
@@ -209,10 +209,7 @@ jstkOpenDevice_bsd(JoystickDevPtr joystick, Bool probe)
 static void
 jstkCloseDevice_bsd(JoystickDevPtr joystick)
 {
-    if ((joystick->fd >= 0)) {
-      xf86CloseSerial(joystick->fd);
-      joystick->fd = -1;
-    }
+    jstkCloseDevice(joystick);
     if (joystick->devicedata != NULL) {
         if (((struct jstk_bsd_hid_data*)joystick->devicedata)->data_buf)
             free(((struct jstk_bsd_hid_data*)joystick->devicedata)->data_buf);
diff --git a/src/backend_evdev.c b/src/backend_evdev.c
index 6d6f644..2a7b0e2 100644
--- a/src/backend_evdev.c
+++ b/src/backend_evdev.c
@@ -210,10 +210,7 @@ jstkOpenDevice_evdev(JoystickDevPtr joystick, Bool probe)
 static void
 jstkCloseDevice_evdev(JoystickDevPtr joystick)
 {
-    if ((joystick->fd >= 0)) {
-        xf86CloseSerial(joystick->fd);
-        joystick->fd = -1;
-    }
+    jstkCloseDevice(joystick);
     if (joystick->devicedata) {
         free(joystick->devicedata);
         joystick->devicedata = NULL;
diff --git a/src/backend_joystick.c b/src/backend_joystick.c
index c84654e..d335bc2 100644
--- a/src/backend_joystick.c
+++ b/src/backend_joystick.c
@@ -49,7 +49,6 @@
 #include "backend_joystick.h"
 
 
-static void jstkCloseDevice_joystick(JoystickDevPtr joystick);
 static int jstkReadData_joystick(JoystickDevPtr joystick,
                                  JOYSTICKEVENT *event,
                                  int *number);
@@ -82,7 +81,7 @@ jstkOpenDevice_joystick(JoystickDevPtr joystick, Bool probe)
     if (ioctl(joystick->fd, JSIOCGVERSION, &driver_version) == -1) {
         xf86Msg(X_ERROR, "Joystick: ioctl JSIOCGVERSION on '%s' failed: %s\n", 
                 joystick->device, strerror(errno));
-        jstkCloseDevice_joystick(joystick);
+        jstkCloseDevice(joystick);
         return -1;
     }
     if ((driver_version >> 16) < 1) {
@@ -95,21 +94,21 @@ jstkOpenDevice_joystick(JoystickDevPtr joystick, Bool probe)
     if (ioctl(joystick->fd, JSIOCGAXES, &axes) == -1) {
         xf86Msg(X_ERROR, "Joystick: ioctl JSIOCGAXES on '%s' failed: %s\n", 
                 joystick->device, strerror(errno));
-        jstkCloseDevice_joystick(joystick);
+        jstkCloseDevice(joystick);
         return -1;
     }
 
     if (ioctl(joystick->fd, JSIOCGBUTTONS, &buttons) == -1) {
         xf86Msg(X_ERROR, "Joystick: ioctl JSIOCGBUTTONS on '%s' failed: %s\n", 
                 joystick->device, strerror(errno));
-        jstkCloseDevice_joystick(joystick);
+        jstkCloseDevice(joystick);
         return -1;
     }
 
     if (ioctl(joystick->fd, JSIOCGNAME(128), joy_name) == -1) {
         xf86Msg(X_ERROR, "Joystick: ioctl JSIOCGNAME on '%s' failed: %s\n", 
                   joystick->device, strerror(errno));
-        jstkCloseDevice_joystick(joystick);
+        jstkCloseDevice(joystick);
         return -1;
     }
 
@@ -127,32 +126,13 @@ jstkOpenDevice_joystick(JoystickDevPtr joystick, Bool probe)
 
     joystick->open_proc = jstkOpenDevice_joystick;
     joystick->read_proc = jstkReadData_joystick;
-    joystick->close_proc = jstkCloseDevice_joystick;
+    joystick->close_proc = jstkCloseDevice;
     return joystick->fd;
 }
 
 
 /***********************************************************************
  *
- * jstkCloseDevice --
- *
- * close the handle.
- *
- ***********************************************************************
- */
-
-static void
-jstkCloseDevice_joystick(JoystickDevPtr joystick)
-{
-    if ((joystick->fd >= 0)) {
-        xf86CloseSerial(joystick->fd);
-        joystick->fd = -1;
-    }
-}
-
-
-/***********************************************************************
- *
  * jstkReadData --
  *
  * Reads data from fd and stores it in the JoystickDevRec struct
diff --git a/src/jstk.c b/src/jstk.c
index bee34fc..211fe32 100644
--- a/src/jstk.c
+++ b/src/jstk.c
@@ -34,6 +34,7 @@
 #include <xf86Xinput.h>
 #include <exevents.h>		/* Needed for InitValuator/Proximity stuff */
 #include <xf86Opt.h>
+#include <xf86_OSproc.h>
 
 #include <math.h>
 #include <xf86Module.h>
@@ -98,6 +99,23 @@ jstkOpenDevice(JoystickDevPtr priv, BOOL probe)
     return fd;
 }
 
+/*
+ ***************************************************************************
+ *
+ * jstkCloseDevice --
+ *
+ * Called to close the device specified in priv, this is a helper for
+ * backend proc_close functions
+ *
+ ***************************************************************************
+ */
+void jstkCloseDevice(JoystickDevPtr priv)
+{
+    if ((priv->fd >= 0)) {
+      xf86CloseSerial(priv->fd);
+      priv->fd = -1;
+    }
+}
 
 /*
  ***************************************************************************
diff --git a/src/jstk.h b/src/jstk.h
index ed5e4a7..4955435 100644
--- a/src/jstk.h
+++ b/src/jstk.h
@@ -123,4 +123,6 @@ typedef struct _JoystickDevRec {
     BUTTON button[MAXBUTTONS];    /* Configuration per button */
 } JoystickDevRec;
 
+void jstkCloseDevice(JoystickDevPtr priv);
+
 #endif
-- 
1.9.0