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-rw-r--r--configure.ac4
-rw-r--r--hw/xwayland/xwayland.c2
-rw-r--r--include/os.h7
-rw-r--r--os/utils.c24
4 files changed, 35 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac
index 6c96de2c3..0d3ad5a03 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2492,6 +2492,10 @@ if test "x$XWAYLAND" = xyes; then
AC_SUBST([XWAYLAND_LIBS])
AC_SUBST([XWAYLAND_SYS_LIBS])
+ if test "x$MONOTONIC_CLOCK" != xyes; then
+ AC_MSG_ERROR([Xwayland requires CLOCK_MONOTONIC support.])
+ fi
+
WAYLAND_PREFIX=`$PKG_CONFIG --variable=prefix wayland-client`
AC_PATH_PROG([WAYLAND_SCANNER], [wayland-scanner],,
[${WAYLAND_PREFIX}/bin$PATH_SEPARATOR$PATH])
diff --git a/hw/xwayland/xwayland.c b/hw/xwayland/xwayland.c
index 151e0445d..b803ba1ba 100644
--- a/hw/xwayland/xwayland.c
+++ b/hw/xwayland/xwayland.c
@@ -32,6 +32,7 @@
#include <misyncshm.h>
#include <compositeext.h>
#include <glx_extinit.h>
+#include <os.h>
#ifdef XF86VIDMODE
#include <X11/extensions/xf86vmproto.h>
@@ -52,6 +53,7 @@ AbortDDX(enum ExitCode error)
void
OsVendorInit(void)
{
+ ForceClockId(CLOCK_MONOTONIC);
}
void
diff --git a/include/os.h b/include/os.h
index 20224f127..702134b52 100644
--- a/include/os.h
+++ b/include/os.h
@@ -51,6 +51,9 @@ SOFTWARE.
#include <stdarg.h>
#include <stdint.h>
#include <string.h>
+#ifdef MONOTONIC_CLOCK
+#include <time.h>
+#endif
#define SCREEN_SAVER_ON 0
#define SCREEN_SAVER_OFF 1
@@ -180,6 +183,10 @@ extern _X_EXPORT void ListenOnOpenFD(int /* fd */ , int /* noxauth */ );
extern _X_EXPORT Bool AddClientOnOpenFD(int /* fd */ );
+#ifdef MONOTONIC_CLOCK
+extern void ForceClockId(clockid_t /* forced_clockid */);
+#endif
+
extern _X_EXPORT CARD32 GetTimeInMillis(void);
extern _X_EXPORT CARD64 GetTimeInMicros(void);
diff --git a/os/utils.c b/os/utils.c
index b5c5c5d28..086fe4fcd 100644
--- a/os/utils.c
+++ b/os/utils.c
@@ -210,6 +210,10 @@ sig_atomic_t inSignalContext = FALSE;
#define HAS_SAVED_IDS_AND_SETEUID
#endif
+#ifdef MONOTONIC_CLOCK
+static clockid_t clockid;
+#endif
+
OsSigHandlerPtr
OsSignal(int sig, OsSigHandlerPtr handler)
{
@@ -427,6 +431,24 @@ GiveUp(int sig)
errno = olderrno;
}
+#ifdef MONOTONIC_CLOCK
+void
+ForceClockId(clockid_t forced_clockid)
+{
+ struct timespec tp;
+
+ BUG_RETURN (clockid);
+
+ clockid = forced_clockid;
+
+ if (clock_gettime(clockid, &tp) != 0) {
+ FatalError("Forced clock id failed to retrieve current time: %s\n",
+ strerror(errno));
+ return;
+ }
+}
+#endif
+
#if (defined WIN32 && defined __MINGW32__) || defined(__CYGWIN__)
CARD32
GetTimeInMillis(void)
@@ -446,7 +468,6 @@ GetTimeInMillis(void)
#ifdef MONOTONIC_CLOCK
struct timespec tp;
- static clockid_t clockid;
if (!clockid) {
#ifdef CLOCK_MONOTONIC_COARSE
@@ -475,7 +496,6 @@ GetTimeInMicros(void)
struct timeval tv;
#ifdef MONOTONIC_CLOCK
struct timespec tp;
- static clockid_t clockid;
if (!clockid) {
if (clock_gettime(CLOCK_MONOTONIC, &tp) == 0)