toaruos/userspace/tests/test-pipe.c

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2012-01-25 04:40:25 +04:00
/* vim: tabstop=4 shiftwidth=4 noexpandtab
* pipe test
*
* Makes a pipe. Pipes stuff to it. Yeah.
2012-01-25 04:40:25 +04:00
*/
#include <stdio.h>
#include <stdint.h>
#include <syscall.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
int main(int argc, char ** argv) {
int fd = syscall_mkpipe();
printf("%d <- pipe\n", fd);
int pid = getpid();
uint32_t f = fork();
if (getpid() != pid) {
char buf[512];
int r = read(fd, buf, 13);
printf("[%d] %s\n", r, buf);
return 0;
} else {
char * buf = "Hello world!";
write(fd, buf, strlen(buf) + 1);
return 0;
}
return 0;
}