#ifndef __common_h__
#define __common_h__

typedef enum {
    DATA,
    END,
} mtype_t;

typedef struct __msg_t {
    mtype_t type;
    int data;
} msg_t;

#define MAX_LINE   (256)
#define WHITESPACE " \t\n"

// some useful routines
int
IsFifo(char *file)
{
    struct stat sbuf;
    if (stat(file, &sbuf) < 0) 
	return 1;
    return S_ISFIFO(sbuf.st_mode);
}

int
IsRegular(char *file)
{
    struct stat sbuf;
    if (stat(file, &sbuf) < 0) 
	return 1;
    return S_ISREG(sbuf.st_mode);
}



#endif // __common_h__