Implement ioctl(FIOASYNC)

FIOASYNC and friends are used to send signals when a file is ready for IO.

This may or may not be needed by Nginx. While Nginx does use it, it is unclear
if the code that uses it has any effect.

PiperOrigin-RevId: 201550828
Change-Id: I7ba05a7db4eb2dfffde11e9bd9a35b65b98d7f50

1 files changed, 29 insertions, 0 deletions

diff --git a/pkg/abi/linux/fcntl.go b/pkg/abi/linux/fcntl.go
new file mode 100644
index 000000000..f5dbe5199
--- /dev/null
+++ b/pkg/abi/linux/fcntl.go
@@ -0,0 +1,29 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package linux
+
+// Comands from linux/fcntl.h.
+const (
+	F_DUPFD         = 0
+	F_DUPFD_CLOEXEC = 1030
+	F_GETFD         = 1
+	F_GETFL         = 3
+	F_GETOWN        = 9
+	F_SETFD         = 2
+	F_SETFL         = 4
+	F_SETLK         = 6
+	F_SETLKW        = 7
+	F_SETOWN        = 8
+)