diff options
Diffstat (limited to 'vendor/github.com/rjeczalik/notify/watcher_fen_cgo.go')
-rw-r--r-- | vendor/github.com/rjeczalik/notify/watcher_fen_cgo.go | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/vendor/github.com/rjeczalik/notify/watcher_fen_cgo.go b/vendor/github.com/rjeczalik/notify/watcher_fen_cgo.go new file mode 100644 index 000000000..58ac8e8c6 --- /dev/null +++ b/vendor/github.com/rjeczalik/notify/watcher_fen_cgo.go @@ -0,0 +1,141 @@ +// Copyright (c) 2014-2015 The Notify Authors. All rights reserved. +// Use of this source code is governed by the MIT license that can be +// found in the LICENSE file. + +// +build solaris + +package notify + +// #include <port.h> +// #include <stdio.h> +// #include <stdlib.h> +// struct file_obj* newFo() { return (struct file_obj*) malloc(sizeof(struct file_obj)); } +// port_event_t* newPe() { return (port_event_t*) malloc(sizeof(port_event_t)); } +// uintptr_t conv(struct file_obj* fo) { return (uintptr_t) fo; } +// struct file_obj* dconv(uintptr_t fo) { return (struct file_obj*) fo; } +import "C" + +import ( + "syscall" + "unsafe" +) + +const ( + fileAccess = Event(C.FILE_ACCESS) + fileModified = Event(C.FILE_MODIFIED) + fileAttrib = Event(C.FILE_ATTRIB) + fileDelete = Event(C.FILE_DELETE) + fileRenameTo = Event(C.FILE_RENAME_TO) + fileRenameFrom = Event(C.FILE_RENAME_FROM) + fileTrunc = Event(C.FILE_TRUNC) + fileNoFollow = Event(C.FILE_NOFOLLOW) + unmounted = Event(C.UNMOUNTED) + mountedOver = Event(C.MOUNTEDOVER) +) + +// PortEvent is a notify's equivalent of port_event_t. +type PortEvent struct { + PortevEvents int // PortevEvents is an equivalent of portev_events. + PortevSource uint8 // PortevSource is an equivalent of portev_source. + PortevPad uint8 // Portevpad is an equivalent of portev_pad. + PortevObject interface{} // PortevObject is an equivalent of portev_object. + PortevUser uintptr // PortevUser is an equivalent of portev_user. +} + +// FileObj is a notify's equivalent of file_obj. +type FileObj struct { + Atim syscall.Timespec // Atim is an equivalent of fo_atime. + Mtim syscall.Timespec // Mtim is an equivalent of fo_mtime. + Ctim syscall.Timespec // Ctim is an equivalent of fo_ctime. + Pad [3]uintptr // Pad is an equivalent of fo_pad. + Name string // Name is an equivalent of fo_name. +} + +type cfen struct { + p2pe map[string]*C.port_event_t + p2fo map[string]*C.struct_file_obj +} + +func newCfen() cfen { + return cfen{ + p2pe: make(map[string]*C.port_event_t), + p2fo: make(map[string]*C.struct_file_obj), + } +} + +func unix2C(sec int64, nsec int64) (C.time_t, C.long) { + return C.time_t(sec), C.long(nsec) +} + +func (c *cfen) port_associate(p int, fo FileObj, e int) (err error) { + cfo := C.newFo() + cfo.fo_atime.tv_sec, cfo.fo_atime.tv_nsec = unix2C(fo.Atim.Unix()) + cfo.fo_mtime.tv_sec, cfo.fo_mtime.tv_nsec = unix2C(fo.Mtim.Unix()) + cfo.fo_ctime.tv_sec, cfo.fo_ctime.tv_nsec = unix2C(fo.Ctim.Unix()) + cfo.fo_name = C.CString(fo.Name) + c.p2fo[fo.Name] = cfo + _, err = C.port_associate(C.int(p), srcFile, C.conv(cfo), C.int(e), nil) + return +} + +func (c *cfen) port_dissociate(port int, fo FileObj) (err error) { + cfo, ok := c.p2fo[fo.Name] + if !ok { + return errNotWatched + } + _, err = C.port_dissociate(C.int(port), srcFile, C.conv(cfo)) + C.free(unsafe.Pointer(cfo.fo_name)) + C.free(unsafe.Pointer(cfo)) + delete(c.p2fo, fo.Name) + return +} + +const srcAlert = C.PORT_SOURCE_ALERT +const srcFile = C.PORT_SOURCE_FILE +const alertSet = C.PORT_ALERT_SET + +func cfo2fo(cfo *C.struct_file_obj) *FileObj { + // Currently remaining attributes are not used. + if cfo == nil { + return nil + } + var fo FileObj + fo.Name = C.GoString(cfo.fo_name) + return &fo +} + +func (c *cfen) port_get(port int, pe *PortEvent) (err error) { + cpe := C.newPe() + if _, err = C.port_get(C.int(port), cpe, nil); err != nil { + C.free(unsafe.Pointer(cpe)) + return + } + pe.PortevEvents, pe.PortevSource, pe.PortevPad = + int(cpe.portev_events), uint8(cpe.portev_source), uint8(cpe.portev_pad) + pe.PortevObject = cfo2fo(C.dconv(cpe.portev_object)) + pe.PortevUser = uintptr(cpe.portev_user) + C.free(unsafe.Pointer(cpe)) + return +} + +func (c *cfen) port_create() (int, error) { + p, err := C.port_create() + return int(p), err +} + +func (c *cfen) port_alert(p int) (err error) { + _, err = C.port_alert(C.int(p), alertSet, C.int(666), nil) + return +} + +func (c *cfen) free() { + for i := range c.p2fo { + C.free(unsafe.Pointer(c.p2fo[i].fo_name)) + C.free(unsafe.Pointer(c.p2fo[i])) + } + for i := range c.p2pe { + C.free(unsafe.Pointer(c.p2pe[i])) + } + c.p2fo = make(map[string]*C.struct_file_obj) + c.p2pe = make(map[string]*C.port_event_t) +} |