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/** ---------------------------------------------------------------------------
 * This software is in the public domain, furnished "as is", without technical
 * support, and with no warranty, express or implied, as to its usefulness for
 * any purpose.
 *
 * gauger.h
 * Interface for C programs to log remotely to a gauger server
 *
 * Author: Bartlomiej Polot
 * -------------------------------------------------------------------------*/
#ifndef __GAUGER_H__
#define __GAUGER_H__

#ifndef WINDOWS

#include <unistd.h>
#include <stdio.h>
#include <sys/wait.h>

#define GAUGER(category, counter, value, unit) \
  { \
    const char *__gauger_v[10];      \
    char __gauger_s[32]; \
    pid_t __gauger_p; \
    if (! (__gauger_p = fork ())) { \
      if (! fork ()) { \
        sprintf (__gauger_s,"%Lf", (long double) (value)); \
        __gauger_v[0] = "gauger"; \
        __gauger_v[1] = "-n"; \
        __gauger_v[2] = counter;  \
        __gauger_v[3] = "-d"; \
        __gauger_v[4] = __gauger_s; \
        __gauger_v[5] = "-u"; \
        __gauger_v[6] = unit; \
        __gauger_v[7] = "-c"; \
        __gauger_v[8] = category; \
        __gauger_v[9] = (char *) NULL; \
        execvp ("gauger", (char*const*) __gauger_v); \
        _exit (1); \
      }else{ \
        _exit (0); \
      } \
    }else{ \
      waitpid (__gauger_p,NULL,0); \
    } \
  }

#define GAUGER_ID(category, counter, value, unit, id) \
  { \
    char*__gauger_v[12]; \
    char __gauger_s[32]; \
    pid_t __gauger_p; \
    if (! (__gauger_p = fork ())) { \
      if (! fork ()) { \
        sprintf (__gauger_s,"%Lf", (long double) (value)); \
        __gauger_v[0] = "gauger"; \
        __gauger_v[1] = "-n"; \
        __gauger_v[2] = counter; \
        __gauger_v[3] = "-d"; \
        __gauger_v[4] = __gauger_s; \
        __gauger_v[5] = "-u"; \
        __gauger_v[6] = unit; \
        __gauger_v[7] = "-i"; \
        __gauger_v[8] = id; \
        __gauger_v[9] = "-c"; \
        __gauger_v[10] = category; \
        __gauger_v[11] = (char *) NULL; \
        execvp ("gauger",__gauger_v); \
        perror ("gauger"); \
        _exit (1); \
      }else{ \
        _exit (0); \
      } \
    }else{ \
      waitpid (__gauger_p,NULL,0); \
    } \
  }

#else

#define GAUGER_ID(category, counter, value, unit, id) {}
#define GAUGER(category, counter, value, unit) {}

#endif /* WINDOWS */

#endif