src/include/gauger.h

   1 /* ---------------------------------------------------------------------------
   2  * This software is in the public domain, furnished "as is", without technical
   3  * support, and with no warranty, express or implied, as to its usefulness for
   4  * any purpose.
   5  *
   6  * gauger.h
   7  * Interface for C programs to log remotely to a gauger server
   8  *
   9  * Author: Bartlomiej Polot
  10  * -------------------------------------------------------------------------*/
  11 #ifndef __GAUGER_H__
  12 #define __GAUGER_H__
  13
  14 #include <unistd.h>
  15 #include <stdio.h>
  16 #include <sys/wait.h>
  17
  18 #define GAUGER(category, counter, value, unit) \
  19   { \
  20     char*__gauger_v[10]; \
  21     char __gauger_s[32]; \
  22     pid_t __gauger_p; \
  23     if (! (__gauger_p = fork ())) { \
  24       close (1);           \
  25       close (2);           \
  26       if (! fork ()) { \
  27         sprintf (__gauger_s, "%Lf", (long double) (value)); \
  28         __gauger_v[0] = "gauger"; \
  29         __gauger_v[1] = "-n"; \
  30         __gauger_v[2] = (char *) (counter);  \
  31         __gauger_v[3] = "-d"; \
  32         __gauger_v[4] = __gauger_s; \
  33         __gauger_v[5] = "-u"; \
  34         __gauger_v[6] = (char *) (unit);     \
  35         __gauger_v[7] = "-c"; \
  36         __gauger_v[8] = (char *) (category); \
  37         __gauger_v[9] = (char *) NULL; \
  38         execvp ("gauger", __gauger_v); \
  39         _exit (1); \
  40       }else{ \
  41         _exit (0); \
  42       } \
  43     }else{ \
  44       waitpid (__gauger_p, NULL, 0); \
  45     } \
  46   }
  47
  48 #define GAUGER_ID(category, counter, value, unit, id) \
  49   { \
  50     char*__gauger_v[12]; \
  51     char __gauger_s[32]; \
  52     pid_t __gauger_p; \
  53     if (! (__gauger_p = fork ())) { \
  54       close (1);           \
  55       close (2);           \
  56       if (! fork ()) { \
  57         sprintf (__gauger_s, "%Lf", (long double) (value)); \
  58         __gauger_v[0] = "gauger"; \
  59         __gauger_v[1] = "-n"; \
  60         __gauger_v[2] = (char *) (counter);  \
  61         __gauger_v[3] = "-d"; \
  62         __gauger_v[4] = __gauger_s; \
  63         __gauger_v[5] = "-u"; \
  64         __gauger_v[6] = (char *) (unit);     \
  65         __gauger_v[7] = "-i"; \
  66         __gauger_v[8] = id; \
  67         __gauger_v[9] = "-c"; \
  68         __gauger_v[10] = (char *) (category);       \
  69         __gauger_v[11] = (char *) NULL; \
  70         execvp ("gauger", __gauger_v); \
  71         _exit (1); \
  72       }else{ \
  73         _exit (0); \
  74       } \
  75     }else{ \
  76       waitpid (__gauger_p, NULL, 0); \
  77     } \
  78   }
  79
  80 #endif