unix: add POLLRDHUP to FreeBSD POLLRDHUP is a poll(2) event applicable to stream sockets that notifies when a remote peer closes a connection. Change-Id: I03a192426f89bbd08fb27dda2716ffb888043c92 Reviewed-on: https://go-review.googlesource.com/c/sys/+/607797 Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

diff --git a/unix/types_freebsd.go b/unix/types_freebsd.go
index 23e3a02..601096e 100644
--- a/unix/types_freebsd.go
+++ b/unix/types_freebsd.go

@@ -356,6 +356,7 @@
 	POLLRDNORM   = C.POLLRDNORM
 	POLLWRBAND   = C.POLLWRBAND
 	POLLWRNORM   = C.POLLWRNORM
+	POLLRDHUP    = C.POLLRDHUP
 )
 
 // Capabilities

diff --git a/unix/ztypes_freebsd_386.go b/unix/ztypes_freebsd_386.go
index 6cbd094..51e13eb 100644
--- a/unix/ztypes_freebsd_386.go
+++ b/unix/ztypes_freebsd_386.go

@@ -625,6 +625,7 @@
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {

diff --git a/unix/ztypes_freebsd_amd64.go b/unix/ztypes_freebsd_amd64.go
index 7c03b6e..d002d8e 100644
--- a/unix/ztypes_freebsd_amd64.go
+++ b/unix/ztypes_freebsd_amd64.go

@@ -630,6 +630,7 @@
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {

diff --git a/unix/ztypes_freebsd_arm.go b/unix/ztypes_freebsd_arm.go
index 422107e..3f863d8 100644
--- a/unix/ztypes_freebsd_arm.go
+++ b/unix/ztypes_freebsd_arm.go

@@ -616,6 +616,7 @@
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {

diff --git a/unix/ztypes_freebsd_arm64.go b/unix/ztypes_freebsd_arm64.go
index 505a12a..61c7293 100644
--- a/unix/ztypes_freebsd_arm64.go
+++ b/unix/ztypes_freebsd_arm64.go

@@ -610,6 +610,7 @@
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {

diff --git a/unix/ztypes_freebsd_riscv64.go b/unix/ztypes_freebsd_riscv64.go
index cc986c7..b5d1741 100644
--- a/unix/ztypes_freebsd_riscv64.go
+++ b/unix/ztypes_freebsd_riscv64.go

@@ -612,6 +612,7 @@
 	POLLRDNORM   = 0x40
 	POLLWRBAND   = 0x100
 	POLLWRNORM   = 0x4
+	POLLRDHUP    = 0x4000
 )
 
 type CapRights struct {