os: direct access to logSync instead of complex LogSetParameter()

It's just a simple flag, and only written from one site, so no need
for complex 'generic' setter function.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

hw/xfree86/common/xf86Config.c

@@ -50,6 +50,7 @@
 #include <sys/types.h>
 #include <grp.h>
 
+#include "os/log_priv.h"
 #include "os/osdep.h"
 
 #include "xf86.h"
@@ -831,7 +832,7 @@ configServerFlags(XF86ConfFlagsPtr flagsconf, XF86OptionPtr layoutopts)
             }
             else if (!xf86NameCmp(s, "sync")) {
                 LogMessageVerb(X_CONFIG, 1, "Syncing logfile enabled\n");
-                LogSetParameter(XLOG_SYNC, TRUE);
+                logSync = TRUE;
             }
             else {
                 LogMessageVerb(X_WARNING, 1, "Unknown Log option\n");

os/log.c

@@ -110,8 +110,9 @@ OR PERFORMANCE OF THIS SOFTWARE.
 #define DEFAULT_LOG_VERBOSITY		0
 #define DEFAULT_LOG_FILE_VERBOSITY	3
 
+Bool logSync = FALSE;
+
 static int logFileFd = -1;
-static Bool logSync = FALSE;
 static int logVerbosity = DEFAULT_LOG_VERBOSITY;
 static int logFileVerbosity = DEFAULT_LOG_FILE_VERBOSITY;
 

os/log_priv.h

@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: MIT OR X11
+ *
+ * Copyright © 2024 Enrico Weigelt, metux IT consult <info@metux.net>
+ */
+#ifndef _XSERVER_LOG_PRIV_H
+#define _XSERVER_LOG_PRIV_H
+
+#include <sys/types.h>
+#include <X11/Xdefs.h>
+
+/**
+ * @brief force fsync() on each log write
+ *
+ * If set to TRUE, force fsync() on each log write.
+ */
+extern Bool logSync;
+
+#endif /* _XSERVER_LOG_PRIV_H */