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#include < sys/types.h >
#include < unistd.h >

int glob = 6;
char buf[] = "teksti stdout virtaan\n";

int main(void)
{
int var; /* automatic variable on the stack */=88;
pid_t pid;


var = 88;
if (write(STDOUT_FILENO, buf, sizeof(buf)-1) != sizeof(buf)-1)
perror("write errorkirjoitusvirhe");
printf("beforeennen fork-funktiota\n"); /* we don't flush stdout */


if ( (pid = fork()) < 0)
perror("fork errorvirhe");
else if (pid == 0)
{ /* childlapsiprosessi */ glob++; /* modifymodifioidaan variablesmuutujia */ var++; }

 

else
sleep(2); /* parentvanhempi */


printf("pid=%d,glob=%d,var=%d\n",getpid(), glob, var);
exit(0);
}