diff options
Diffstat (limited to 'src/internal')
| -rw-r--r-- | src/internal/syscall/unix/nonblocking_wasip1.go | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/internal/syscall/unix/nonblocking_wasip1.go b/src/internal/syscall/unix/nonblocking_wasip1.go index 49a2a232ba..208db28c3e 100644 --- a/src/internal/syscall/unix/nonblocking_wasip1.go +++ b/src/internal/syscall/unix/nonblocking_wasip1.go @@ -6,6 +6,22 @@ package unix +import ( + "syscall" + _ "unsafe" // for go:linkname +) + func IsNonblock(fd int) (nonblocking bool, err error) { - return false, nil + flags, e1 := fd_fdstat_get_flags(fd) + if e1 != nil { + return false, e1 + } + return flags&syscall.FDFLAG_NONBLOCK != 0, nil } + +// This helper is implemented in the syscall package. It means we don't have +// to redefine the fd_fdstat_get host import or the fdstat struct it +// populates. +// +//go:linkname fd_fdstat_get_flags syscall.fd_fdstat_get_flags +func fd_fdstat_get_flags(fd int) (uint32, error) |