os: direct access to logFileVerbosity

No need for complicated 'generic' setter, just make the variable
itself available to DDX'es.

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

hw/kdrive/ephyr/ephyrinit.c

@@ -28,6 +28,7 @@
 #include "dix/dix_priv.h"
 #include "os/cmdline.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 
 #include "ephyr.h"
@@ -288,10 +289,8 @@ ddxProcessArgument(int argc, char **argv, int i)
     }
     else if (!strcmp(argv[i], "-verbosity")) {
         if (i + 1 < argc && argv[i + 1][0] != '-') {
-            int verbosity = atoi(argv[i + 1]);
-
-            LogSetParameter(XLOG_VERBOSITY, verbosity);
-            EPHYR_LOG("set verbosiry to %d\n", verbosity);
+            logVerbosity = atoi(argv[i + 1]);
+            EPHYR_LOG("set verbosiry to %d\n", logVerbosity);
             return 2;
         }
         else {

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"
@@ -827,13 +828,11 @@ configServerFlags(XF86ConfFlagsPtr flagsconf, XF86OptionPtr layoutopts)
     {
         if ((s = xf86GetOptValString(FlagOptions, FLAG_LOG))) {
             if (!xf86NameCmp(s, "flush")) {
-                LogMessageVerb(X_CONFIG, 1, "Flushing logfile enabled\n");
-                LogSetParameter(XLOG_FLUSH, TRUE);
+                LogMessageVerb(X_CONFIG, 1, "flush log flag is noop\n");
             }
             else if (!xf86NameCmp(s, "sync")) {
                 LogMessageVerb(X_CONFIG, 1, "Syncing logfile enabled\n");
-                LogSetParameter(XLOG_FLUSH, TRUE);
-                LogSetParameter(XLOG_SYNC, TRUE);
+                logSync = TRUE;
             }
             else {
                 LogMessageVerb(X_WARNING, 1, "Unknown Log option\n");

hw/xfree86/common/xf86Init.c

@@ -58,6 +58,7 @@
 #include "mi/mi_priv.h"
 #include "os/cmdline.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 
 #include "servermd.h"
@@ -870,14 +871,14 @@ void
 xf86SetVerbosity(int verb)
 {
     xf86Verbose = verb;
-    LogSetParameter(XLOG_VERBOSITY, verb);
+    logVerbosity = verb;
 }
 
 void
 xf86SetLogVerbosity(int verb)
 {
     xf86LogVerbose = verb;
-    LogSetParameter(XLOG_FILE_VERBOSITY, verb);
+    logFileVerbosity = verb;
 }
 
 static void

hw/xwayland/xwayland.c

@@ -39,6 +39,7 @@
 #include "dix/screenint_priv.h"
 #include "os/cmdline.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 #include "os/xserver_poll.h"
 
@@ -132,7 +133,6 @@ static int init_fd = -1;
 static int wm_fd = -1;
 static int listen_fds[5] = { -1, -1, -1, -1, -1 };
 static int listen_fd_count = 0;
-static int verbosity = 0;
 
 static void
 xwl_show_version(void)
@@ -235,12 +235,11 @@ ddxProcessArgument(int argc, char *argv[], int i)
 
             val = strtol(argv[i], &end, 0);
             if (*end == '\0') {
-                verbosity = val;
-                LogSetParameter(XLOG_VERBOSITY, verbosity);
+                logVerbosity = val;
                 return 2;
             }
         }
-        LogSetParameter(XLOG_VERBOSITY, ++verbosity);
+        logVerbosity++;
         return 1;
     }
     else if (strcmp(argv[i], "-version") == 0) {

hw/xwin/InitOutput.c

@@ -37,6 +37,7 @@ from The Open Group.
 #include "dix/dix_priv.h"
 #include "dix/screenint_priv.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
 #include "os/osdep.h"
 
 #include "winmsg.h"
@@ -643,9 +644,8 @@ OsVendorInit(void)
         g_pszLogFile = LogInit(g_pszLogFile, ".old");
 
     }
-    LogSetParameter(XLOG_FLUSH, 1);
-    LogSetParameter(XLOG_VERBOSITY, g_iLogVerbose);
-    LogSetParameter(XLOG_FILE_VERBOSITY, g_iLogVerbose);
+    logVerbosity = 2;
+    logFileVerbosity = 2;
 
     /* Log the version information */
     if (serverGeneration == 1)

hw/xwin/glx/indirect.c

@@ -78,6 +78,8 @@
 #include <xwin-config.h>
 #endif
 
+#include "os/log_priv.h"
+
 #include "glwindows.h"
 #include <glx/glxserver.h>
 #include <glx/glxutil.h>
@@ -297,7 +299,7 @@ fbConfigsDump(unsigned int n, __GLXconfig * c, PixelFormatRejectStats *rejects)
     LogMessage(X_INFO, "ignored pixel formats: %d not OpenGL, %d unknown pixel type, %d unaccelerated\n",
                rejects->notOpenGL, rejects->unknownPixelType, rejects->unaccelerated);
 
-    if (g_iLogVerbose < 3)
+    if (logVerbosity < 3)
         return;
 
     ErrorF
@@ -572,7 +574,7 @@ glxWinScreenProbe(ScreenPtr pScreen)
     if (!wgl_extensions)
         wgl_extensions = "";
 
-    if (g_iLogVerbose >= 3) {
+    if (logVerbosity >= 3) {
         glxLogExtensions("GL_EXTENSIONS:  ", gl_extensions);
         glxLogExtensions("WGL_EXTENSIONS: ", wgl_extensions);
     }

hw/xwin/winglobals.c

@@ -69,7 +69,6 @@ const char *g_pszLogFile = DEFAULT_LOGDIR "/XWin.%s.log";
 const char *g_pszLogFile = "XWin.log";
 Bool g_fLogFileChanged = FALSE;
 #endif
-int g_iLogVerbose = 2;
 Bool g_fLogInited = FALSE;
 char *g_pszCommandLine = NULL;
 Bool g_fSilentFatalError = FALSE;

hw/xwin/winglobals.h

@@ -45,7 +45,6 @@ extern const char *g_pszLogFile;
 #ifdef RELOCATE_PROJECTROOT
 extern Bool g_fLogFileChanged;
 #endif
-extern int g_iLogVerbose;
 extern Bool g_fLogInited;
 
 extern Bool g_fAuthEnabled;

hw/xwin/winprocarg.c

@@ -36,8 +36,9 @@ from The Open Group.
 #endif
 
 #include "os/cmdline.h"
-#include "os/osdep.h"
 #include "os/ddx_priv.h"
+#include "os/log_priv.h"
+#include "os/osdep.h"
 
 #include <../xfree86/common/xorgVersion.h>
 #include "win.h"
@@ -996,7 +997,7 @@ ddxProcessArgument(int argc, char *argv[], int i)
      */
     if (IS_OPTION("-logverbose")) {
         CHECK_ARGS(1);
-        g_iLogVerbose = atoi(argv[++i]);
+        logVerbosity = atoi(argv[++i]);
         return 2;
     }
 

include/os.h

@@ -324,7 +324,6 @@ timingsafe_memcmp(const void *b1, const void *b2, size_t len);
 
 /* Logging. */
 typedef enum _LogParameter {
-    XLOG_FLUSH,
     XLOG_SYNC,
     XLOG_VERBOSITY,
     XLOG_FILE_VERBOSITY

os/log.c

@@ -109,12 +109,11 @@ OR PERFORMANCE OF THIS SOFTWARE.
 #define DEFAULT_LOG_VERBOSITY		0
 #define DEFAULT_LOG_FILE_VERBOSITY	3
 
-static FILE *logFile = NULL;
+Bool logSync = FALSE;
+int logVerbosity = DEFAULT_LOG_VERBOSITY;
+int logFileVerbosity = DEFAULT_LOG_FILE_VERBOSITY;
+
 static int logFileFd = -1;
-static Bool logFlush = FALSE;
-static Bool logSync = FALSE;
-static int logVerbosity = DEFAULT_LOG_VERBOSITY;
-static int logFileVerbosity = DEFAULT_LOG_FILE_VERBOSITY;
 
 /* Buffer to information logged before the log file is opened. */
 static char *saveBuffer = NULL;
@@ -200,6 +199,12 @@ LogFilePrep(const char *fname, const char *backup, const char *idstring)
 }
 #pragma GCC diagnostic pop
 
+static inline void doLogSync(void) {
+#ifndef WIN32
+    fsync(logFileFd);
+#endif
+}
+
 /*
  * LogInit is called to start logging to a file.  It is also called (with
  * NULL arguments) when logging to a file is not wanted.  It must always be
@@ -235,19 +240,14 @@ LogInit(const char *fname, const char *backup)
                 saved_log_backup = strdup(backup);
         } else
             logFileName = LogFilePrep(fname, backup, display);
-        if ((logFile = fopen(logFileName, "w")) == NULL)
-            FatalError("Cannot open log file \"%s\"\n", logFileName);
-        setvbuf(logFile, NULL, _IONBF, 0);
 
-        logFileFd = fileno(logFile);
+        if ((logFileFd = open(logFileName, O_WRONLY | O_CREAT, S_IRUSR|S_IWUSR|S_IRGRP)) == -1)
+            FatalError("Cannot open log file \"%s\": %s\n", logFileName, strerror(errno));
 
         /* Flush saved log information. */
         if (saveBuffer && bufferSize > 0) {
-            fwrite(saveBuffer, bufferPos, 1, logFile);
-            fflush(logFile);
-#ifndef WIN32
-            fsync(fileno(logFile));
-#endif
+            write(logFileFd, saveBuffer, bufferPos);
+            doLogSync();
         }
     }
 
@@ -298,14 +298,13 @@ LogSetDisplay(void)
 void
 LogClose(enum ExitCode error)
 {
-    if (logFile) {
+    if (logFileFd != -1) {
         int msgtype = (error == EXIT_NO_ERROR) ? X_INFO : X_ERROR;
         LogMessageVerb(msgtype, -1,
                 "Server terminated %s (%d). Closing log file.\n",
                 (error == EXIT_NO_ERROR) ? "successfully" : "with error",
                 error);
-        fclose(logFile);
-        logFile = NULL;
+        close(logFileFd);
         logFileFd = -1;
     }
 }
@@ -314,9 +313,6 @@ Bool
 LogSetParameter(LogParameter param, int value)
 {
     switch (param) {
-    case XLOG_FLUSH:
-        logFlush = value ? TRUE : FALSE;
-        return TRUE;
     case XLOG_SYNC:
         logSync = value ? TRUE : FALSE;
         return TRUE;
@@ -563,31 +559,23 @@ LogSWrite(int verb, const char *buf, size_t len, Bool end_line)
     if (verb < 0 || logFileVerbosity >= verb) {
         if (inSignalContext && logFileFd >= 0) {
             ret = write(logFileFd, buf, len);
-#ifndef WIN32
-            if (logFlush && logSync)
-                fsync(logFileFd);
-#endif
+            if (logSync)
+                doLogSync();
         }
-        else if (!inSignalContext && logFile) {
+        else if (!inSignalContext && logFileFd != -1) {
             if (newline) {
                 time_t t = time(NULL);
                 struct tm tm;
                 char fmt_tm[32];
 
                 localtime_r(&t, &tm);
-                strftime(fmt_tm, sizeof(fmt_tm) - 1, "%Y-%m-%d %H:%M:%S", &tm);
-
-                fprintf(logFile, "[%s] ", fmt_tm);
+                strftime(fmt_tm, sizeof(fmt_tm) - 1, "[%Y-%m-%d %H:%M:%S] ", &tm);
+                write(logFileFd, fmt_tm, strlen(fmt_tm));
             }
             newline = end_line;
-            fwrite(buf, len, 1, logFile);
-            if (logFlush) {
-                fflush(logFile);
-#ifndef WIN32
-                if (logSync)
-                    fsync(fileno(logFile));
-#endif
-            }
+            write(logFileFd, buf, len);
+            if (logSync)
+                doLogSync();
         }
         else if (!inSignalContext && needBuffer) {
             if (len > bufferUnused) {

os/log_priv.h

@@ -0,0 +1,34 @@
+/* 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;
+
+/**
+ * @brief console log verbosity (stderr)
+ *
+ * The verbosity level of logging to console. All messages with verbosity
+ * level below this one will be written to stderr
+ */
+extern int logVerbosity;
+
+/**
+ * @brief log file verbosity
+ *
+ * The verbosity level of logging to per-display file. All messages with
+ * verbosity level below this one will be written to the log file.
+ */
+extern int logFileVerbosity;
+
+#endif /* _XSERVER_LOG_PRIV_H */

test/signal-logging.c

@@ -30,6 +30,7 @@
 #include <unistd.h>
 
 #include "os/fmt.h"
+#include "os/log_priv.h"
 
 #include "assert.h"
 #include "misc.h"
@@ -149,7 +150,7 @@ number_formatting(void)
                                 -0x7FFFFFFFFFFFFFFF, /* Maximum 64-bit signed number */
     } ;
 
-    LogSetParameter(XLOG_VERBOSITY, -1);
+    logVerbosity = -1;
 
     for (i = 0; i < ARRAY_SIZE(unsigned_tests); i++)
         assert(check_number_format_test(unsigned_tests[i]));
@@ -181,7 +182,7 @@ static void logging_format(void)
     uintptr_t ptr;
     char *fname = NULL;
 
-    LogSetParameter(XLOG_VERBOSITY, -1);
+    logVerbosity = -1;
 
     /* set up buf to contain ".....end" */
     memset(buf, '.', sizeof(buf));