70 lines
1.2 KiB
C++
70 lines
1.2 KiB
C++
//
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// Log handler
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//
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// by James Hammons
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// (C) 2006 Underground Software
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//
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// JLH = James Hammons <jlhamm@acm.org>
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//
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// WHO WHEN WHAT
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// --- ---------- ------------------------------------------------------------
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// JLH 01/03/2006 Moved includes out of header file for faster compilation
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//
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#include "log.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdint.h>
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// Maximum size of log file (10 MB ought to be enough for anybody)
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#define MAX_LOG_SIZE 10000000
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static FILE * log_stream = NULL;
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static uint32_t logSize = 0;
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bool InitLog(const char * path)
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{
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log_stream = fopen(path, "wrt");
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if (log_stream == NULL)
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return false;
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return true;
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}
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void LogDone(void)
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{
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if (log_stream)
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fclose(log_stream);
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}
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//
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// This logger is used mainly to ensure that text gets written to the log file
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// even if the program crashes. The performance hit is acceptable in this case!
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//
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void WriteLog(const char * text, ...)
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{
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if (!log_stream)
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return;
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va_list arg;
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va_start(arg, text);
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logSize += vfprintf(log_stream, text, arg);
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va_end(arg);
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fflush(log_stream); // Make sure that text is written!
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if (logSize > MAX_LOG_SIZE)
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{
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fclose(log_stream);
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log_stream = NULL;
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}
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}
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