utildebug.c,v

这是P2P流媒体方案－NICE的实现源码

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1.1
date	2002.07.02.19.30.41;	author rbraud;	state Exp;
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1.1
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@Initial revision
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@#include <stdio.h>
#include <errno.h>
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>

#include "utilDebug.h"

/* extern char *sys_errlist[]; */

/***************************************************************************/

FILE *utilDebugFile = NULL;
/* FILE *utilDebugFile = stderr; */
int utilDebugLevel = UTIL_CRITICAL;

/***************************************************************************/
/*
   InfoMessage is a printf-like funtion that prints a debugging message
   if the current debugging level is less-than priorityLabel
*/
/***************************************************************************/
void 
UTIL_InfoMessage(int priorityLabel,char *string,...)
{
  va_list args;

  if (priorityLabel >= utilDebugLevel)
  {
    va_start(args,string);
    vfprintf(utilDebugFile,string,args);
    va_end(args);
  }
}

/***************************************************************************/
/* 
   UTIL_SetDebugFile() redirects all further debugging output to the file fp 
*/
/***************************************************************************/
int 
UTIL_SetDebugFile(FILE *fp)
{
  if ((utilDebugFile != NULL)
      && (utilDebugFile != stderr)
      && (utilDebugFile != stdout))
    UTIL_AssertTrue(fclose(utilDebugFile) == 0,
		    "Unable to close current debug file",
		    UTIL_ABORT,0);
  
  utilDebugFile = fp;
  
  return 0;
}

/***************************************************************************/
/*
   UTIL_SetDebugLevel() sets the current debugging level to newLevel
*/
/***************************************************************************/
int 
UTIL_SetDebugLevel(int newLevel)
{
  UTIL_InfoMessage(UTIL_CRITICAL,"Changing debug level to %d\n",newLevel);

  utilDebugLevel = newLevel;
  return 0;
}






int
UTIL_ParseArguments(char **argv,int *argc)
{
  int i,j;
  
  for (i=0;i<*argc;i++)
    if (strncasecmp(argv[i],"-util",4) == 0)
    {
      if (strcasecmp(argv[i],"-utilDebugFile") == 0)
      {
        FILE *x;
    
        UTIL_AssertTrue(i != *argc,
            "no file listed with utilDebugFile",UTIL_ABORT,0);
            
        UTIL_InfoMessage(UTIL_INFORMATION,
            "Openning debug file %s\n",argv[i+1]);      
        x = fopen(argv[i+1],"w");
        UTIL_AssertTrue(x != NULL,
            "Unable to open file for writing",UTIL_ABORT,0);
        UTIL_SetDebugFile(x);
    
        *argc -= 2;
        for (j=i;j<*argc;j++)
        {
            UTIL_InfoMessage(UTIL_INFORMATION,"Removing argument %s",argv[j]);
            argv[j] = argv[j+2];
        }
      } /* end of utilDebugFile argument test */
      
      if (strcasecmp(argv[i],"-utilDebugLevel") == 0)
      {
        UTIL_AssertTrue(i != *argc,
            "no level listed with utilDebugLevel",UTIL_ABORT,0);
        UTIL_InfoMessage(UTIL_INFORMATION,
            "Setting debug level to %d\n",atoi(argv[i+1]));

        UTIL_SetDebugLevel(atoi(argv[i+1]));
    
        *argc -= 2;
        for (j=i;j<*argc;j++)
        {
            UTIL_InfoMessage(UTIL_INFORMATION,"Removing argument %s",argv[j]);
            argv[j] = argv[j+2];
        }
      } /* end of utilDebugLevel argument test */
    } /* end of test for util* argument */
    
  return 0;
}
@