os-70-350

os-70-350 Commit Details


Date:2013-12-08 21:54:16 (11 years 8 months ago)
Author:Natalie Adams
Branch:master
Commit:61c88be577cf11039dd5a2ffa0eb7d4c156e6f5f
Parents: 6b8dad3d23bf27231eff188b41c1ba5a59d8a1f1
Message:adding fork example
Changes:

File differences

fork-example/main.c
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#include <sys/types.h>␍␊
#include <stdio.h>␍␊
#include <unistd.h>␍␊
␍␊
int main()␍␊
{␍␊
pid_t pid;␍␊
␍␊
printf("begin\n");␍␊
/* fork a child process */␍␊
pid = fork();␍␊
printf("pid = %i\n", pid);␍␊
if (pid < 0) { /* error occurred */␍␊
fprintf(stderr, "Fork Failed");␍␊
return 1;␍␊
}␍␊
else if (pid == 0) { /* child process */␍␊
execlp("/bin/ls", "ls", NULL);␍␊
}␍␊
else { /* parent process */␍␊
/* parent will wait for the child to complete */␍␊
wait(NULL);␍␊
printf("Child Complete");␍␊
}␍␊
return 0;␍␊
␉/* output:␍␊
␉␍␊
begin␍␊
pid = 15905␍␊
pid = 0␍␊
[ list of files ]␍␊
␍␊
*/␍␊
}␍␊

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