1 #include <unistd.h>
2 #include <errno.h>
3 #include <fcntl.h>
4 #include "syscall.h"
5 #include <unsupported_api.h>
6
pipe2(int fd[2],int flag)7 int pipe2(int fd[2], int flag)
8 {
9 if (!flag) return pipe(fd);
10
11 UNSUPPORTED_API_VOID(LITEOS_A);
12 int ret = __syscall(SYS_pipe2, fd, flag);
13 if (ret != -ENOSYS) return __syscall_ret(ret);
14 ret = pipe(fd);
15 if (ret) return ret;
16 if (flag & O_CLOEXEC) {
17 __syscall(SYS_fcntl, fd[0], F_SETFD, FD_CLOEXEC);
18 __syscall(SYS_fcntl, fd[1], F_SETFD, FD_CLOEXEC);
19 }
20 if (flag & O_NONBLOCK) {
21 __syscall(SYS_fcntl, fd[0], F_SETFL, O_NONBLOCK);
22 __syscall(SYS_fcntl, fd[1], F_SETFL, O_NONBLOCK);
23 }
24 return 0;
25 }
26