+/*
+==============================================================================
+
+LOGGING
+
+==============================================================================
+*/
+
+cvar_t log_file = {0, "log_file",""};
+cvar_t log_sync = {0, "log_sync","0"};
+char crt_log_file [MAX_OSPATH] = "";
+qfile_t* logfile = NULL;
+
+qbyte* logqueue = NULL;
+size_t logq_ind = 0;
+size_t logq_size = 0;
+
+void Log_ConPrint (const char *msg);
+
+/*
+====================
+Log_Timestamp
+====================
+*/
+const char* Log_Timestamp (const char *desc)
+{
+ static char timestamp [128];
+ time_t crt_time;
+ const struct tm *crt_tm;
+ char timestring [64];
+
+ // Build the time stamp (ex: "Wed Jun 30 21:49:08 1993");
+ time (&crt_time);
+ crt_tm = localtime (&crt_time);
+ strftime (timestring, sizeof (timestring), "%a %b %d %H:%M:%S %Y", crt_tm);
+
+ if (desc != NULL)
+ snprintf (timestamp, sizeof (timestamp), "====== %s (%s) ======\n", desc, timestring);
+ else
+ snprintf (timestamp, sizeof (timestamp), "====== %s ======\n", timestring);
+
+ return timestamp;
+}
+
+
+/*
+====================
+Log_Init
+====================
+*/
+void Log_Init (void)
+{
+ Cvar_RegisterVariable (&log_file);
+ Cvar_RegisterVariable (&log_sync);
+
+ // support for the classic Quake option
+ if (COM_CheckParm ("-condebug") != 0)
+ {
+ Cvar_SetQuick (&log_file, "qconsole.log");
+ Cvar_SetValueQuick (&log_sync, 1);
+ unlink (va("%s/qconsole.log", fs_gamedir));
+ }
+
+ // Allocate a log queue
+ logq_size = 512;
+ logqueue = Mem_Alloc (tempmempool, logq_size);
+ logq_ind = 0;
+}
+
+
+/*
+====================
+Log_Open
+====================
+*/
+void Log_Open (void)
+{
+ if (logfile != NULL || log_file.string[0] == '\0')
+ return;
+
+ logfile = FS_Open (log_file.string, "at", false);
+ if (logfile != NULL)
+ {
+ strlcpy (crt_log_file, log_file.string, sizeof (crt_log_file));
+ FS_Print (logfile, Log_Timestamp ("Log started"));
+ }
+}
+
+
+/*
+====================
+Log_Close
+====================
+*/
+void Log_Close (void)
+{
+ if (logfile == NULL)
+ return;
+
+ FS_Print (logfile, Log_Timestamp ("Log stopped"));
+ FS_Print (logfile, "\n");
+ FS_Close (logfile);
+
+ logfile = NULL;
+ crt_log_file[0] = '\0';
+}
+
+
+/*
+====================
+Log_Start
+====================
+*/
+void Log_Start (void)
+{
+ Log_Open ();
+
+ // Dump the contents of the log queue into the log file and free it
+ if (logqueue != NULL)
+ {
+ if (logfile != NULL && logq_ind != 0)
+ FS_Write (logfile, logqueue, logq_ind);
+ Mem_Free (logqueue);
+ logqueue = NULL;
+ logq_ind = 0;
+ logq_size = 0;
+ }
+}
+
+
+/*
+================
+Log_ConPrint
+================
+*/
+void Log_ConPrint (const char *msg)
+{
+ // Until the host is completely initialized, we maintain a log queue
+ // to store the messages, since the log can't be started before
+ if (logqueue != NULL)
+ {
+ size_t remain = logq_size - logq_ind;
+ size_t len = strlen (msg);
+
+ // If we need to enlarge the log queue
+ if (len > remain)
+ {
+ unsigned int factor = ((logq_ind + len) / logq_size) + 1;
+ qbyte* newqueue;
+
+ logq_size *= factor;
+ newqueue = Mem_Alloc (tempmempool, logq_size);
+ memcpy (newqueue, logqueue, logq_ind);
+ Mem_Free (logqueue);
+ logqueue = newqueue;
+ remain = logq_size - logq_ind;
+ }
+ memcpy (&logqueue[logq_ind], msg, len);
+ logq_ind += len;
+
+ return;
+ }
+
+ // Check if log_file has changed
+ if (strcmp (crt_log_file, log_file.string) != 0)
+ {
+ Log_Close ();
+ Log_Open ();
+ }
+
+ // If a log file is available
+ if (logfile != NULL)
+ {
+ FS_Print (logfile, msg);
+ if (log_sync.integer)
+ FS_Flush (logfile);
+ }
+}
+
+
+/*
+================
+Log_Print
+================
+*/
+void Log_Print (const char *logfilename, const char *msg)
+{
+ qfile_t *file;
+ file = FS_Open(logfilename, "at", true);
+ if (file)
+ {
+ FS_Print(file, msg);
+ FS_Close(file);
+ }
+}
+
+/*
+================
+Log_Printf
+================
+*/
+void Log_Printf (const char *logfilename, const char *fmt, ...)
+{
+ qfile_t *file;
+
+ file = FS_Open (logfilename, "at", true);
+ if (file != NULL)
+ {
+ va_list argptr;
+
+ va_start (argptr, fmt);
+ FS_VPrintf (file, fmt, argptr);
+ va_end (argptr);
+
+ FS_Close (file);
+ }
+}
+
+
+/*
+==============================================================================
+
+CONSOLE
+
+==============================================================================
+*/