diff options
Diffstat (limited to 'src/runtime/os_aix.go')
| -rw-r--r-- | src/runtime/os_aix.go | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/src/runtime/os_aix.go b/src/runtime/os_aix.go index 66b4d94cf2..21f7cea908 100644 --- a/src/runtime/os_aix.go +++ b/src/runtime/os_aix.go @@ -361,12 +361,9 @@ func walltime() (sec int64, nsec int32) { } //go:nosplit -func fcntl(fd, cmd, arg int32) int32 { +func fcntl(fd, cmd, arg int32) (int32, int32) { r, errno := syscall3(&libc_fcntl, uintptr(fd), uintptr(cmd), uintptr(arg)) - if int32(r) < 0 { - return -int32(errno) - } - return int32(r) + return int32(r), int32(errno) } //go:nosplit @@ -376,8 +373,10 @@ func closeonexec(fd int32) { //go:nosplit func setNonblock(fd int32) { - flags := fcntl(fd, _F_GETFL, 0) - fcntl(fd, _F_SETFL, flags|_O_NONBLOCK) + flags, _ := fcntl(fd, _F_GETFL, 0) + if flags != -1 { + fcntl(fd, _F_SETFL, flags|_O_NONBLOCK) + } } // sigPerThreadSyscall is only used on linux, so we assign a bogus signal |