debug.c

这是一个用于linux程序开发中可用于调试程序的代码

#include "debug.h"
#include "portable.h"


#include <syslog.h>
#include <stdarg.h>
#include <assert.h>

#include <string.h>
#include <errno.h>
uint32_t debug_level=0;
#define DPRINTF_BUF_SIZE  1024



void DPRINTF_INFO_DEBUG(int level, char *filename, int line, char *format, ...)
{
  va_list args;

  fprintf(stderr, "%s:%d \t\t", filename, line);
  va_start(args, format);
  if(level >= debug_level /*av3k_debug_level*/) {
      vfprintf(stderr, format, args);
  }
  va_end(args);
}

void PERROR_DEBUG(char *filename, int line)
{
    static char buf[256];
    char *errbuf;
    errbuf = strerror_r(errno,buf,256);
    syslog(LOG_USER|LOG_DEBUG, "%s,%d:errno=%d,%s",filename,line,errno,buf);
  
}


void DPRINTF_INFO_DLOG(int level, char *format, ...)
{
  va_list args;
  char format2[DPRINTF_BUF_SIZE];
  sprintf(format2,"%%s:%%d %s",format);
  va_start(args, format);
  if(level >= debug_level /*av3k_debug_level*/) {
    vsyslog(LOG_USER|level,format2,args);
  }
  va_end(args);
}


void DUMP_DEBUG(void* buf,int len)
{
    int i=0;
    unsigned char* p = (unsigned char*)buf;
    for(i=0; i<len; i++){
        fprintf(stderr, "%x ", *p ++);
    }
    
    printf("\n");
}

void DUMP_DLOG(void* buf,int len)
{
    int i=0;
    for(i=0; i<len; i++){
        syslog(LOG_USER|LOG_DEBUG,buf);
    }
    
    printf("\n");
}

void DUMP_FILE(char* filename,char* buf, int len)
{
    FILE* fp=fopen(filename, "wb");
    int32_t wlen;
    wlen = fwrite(buf,1,len,fp);
    assert(wlen==len);
    fclose(fp);
    DPRINTF(DEBUG_NOTICE, "start %p,len %d\n", buf, len);
}