unix: expose solaris types needed for Event Ports

This work is in support of a cleanup of fsnotify/fsnotify#263

Change-Id: I2bc50036087a038c2aa8b6178687d1a870b9d1fd
Reviewed-on: https://go-review.googlesource.com/c/sys/+/324629
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>

unix/types_solaris.go

@@ -34,6 +34,7 @@ package unix
 #include <sys/mman.h>
 #include <sys/mount.h>
 #include <sys/param.h>
+#include <sys/port.h>
 #include <sys/resource.h>
 #include <sys/select.h>
 #include <sys/signal.h>
@@ -269,3 +270,33 @@ const (
 	POLLWRBAND = C.POLLWRBAND
 	POLLWRNORM = C.POLLWRNORM
 )
+
+// Event Ports
+
+type fileObj C.struct_file_obj
+
+type portEvent C.struct_port_event
+
+const (
+	PORT_SOURCE_AIO    = C.PORT_SOURCE_AIO
+	PORT_SOURCE_TIMER  = C.PORT_SOURCE_TIMER
+	PORT_SOURCE_USER   = C.PORT_SOURCE_USER
+	PORT_SOURCE_FD     = C.PORT_SOURCE_FD
+	PORT_SOURCE_ALERT  = C.PORT_SOURCE_ALERT
+	PORT_SOURCE_MQ     = C.PORT_SOURCE_MQ
+	PORT_SOURCE_FILE   = C.PORT_SOURCE_FILE
+	PORT_ALERT_SET     = C.PORT_ALERT_SET
+	PORT_ALERT_UPDATE  = C.PORT_ALERT_UPDATE
+	PORT_ALERT_INVALID = C.PORT_ALERT_INVALID
+	FILE_ACCESS        = C.FILE_ACCESS
+	FILE_MODIFIED      = C.FILE_MODIFIED
+	FILE_ATTRIB        = C.FILE_ATTRIB
+	FILE_TRUNC         = C.FILE_TRUNC
+	FILE_NOFOLLOW      = C.FILE_NOFOLLOW
+	FILE_DELETE        = C.FILE_DELETE
+	FILE_RENAME_TO     = C.FILE_RENAME_TO
+	FILE_RENAME_FROM   = C.FILE_RENAME_FROM
+	UNMOUNTED          = C.UNMOUNTED
+	MOUNTEDOVER        = C.MOUNTEDOVER
+	FILE_EXCEPTION     = C.FILE_EXCEPTION
+)