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Diffstat (limited to 'vendor/github.com/coreos/pkg/dlopen/dlopen.go')
-rw-r--r--vendor/github.com/coreos/pkg/dlopen/dlopen.go82
1 files changed, 0 insertions, 82 deletions
diff --git a/vendor/github.com/coreos/pkg/dlopen/dlopen.go b/vendor/github.com/coreos/pkg/dlopen/dlopen.go
deleted file mode 100644
index 23774f612..000000000
--- a/vendor/github.com/coreos/pkg/dlopen/dlopen.go
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright 2016 CoreOS, 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 dlopen provides some convenience functions to dlopen a library and
-// get its symbols.
-package dlopen
-
-// #cgo LDFLAGS: -ldl
-// #include <stdlib.h>
-// #include <dlfcn.h>
-import "C"
-import (
- "errors"
- "fmt"
- "unsafe"
-)
-
-var ErrSoNotFound = errors.New("unable to open a handle to the library")
-
-// LibHandle represents an open handle to a library (.so)
-type LibHandle struct {
- Handle unsafe.Pointer
- Libname string
-}
-
-// GetHandle tries to get a handle to a library (.so), attempting to access it
-// by the names specified in libs and returning the first that is successfully
-// opened. Callers are responsible for closing the handler. If no library can
-// be successfully opened, an error is returned.
-func GetHandle(libs []string) (*LibHandle, error) {
- for _, name := range libs {
- libname := C.CString(name)
- defer C.free(unsafe.Pointer(libname))
- handle := C.dlopen(libname, C.RTLD_LAZY)
- if handle != nil {
- h := &LibHandle{
- Handle: handle,
- Libname: name,
- }
- return h, nil
- }
- }
- return nil, ErrSoNotFound
-}
-
-// GetSymbolPointer takes a symbol name and returns a pointer to the symbol.
-func (l *LibHandle) GetSymbolPointer(symbol string) (unsafe.Pointer, error) {
- sym := C.CString(symbol)
- defer C.free(unsafe.Pointer(sym))
-
- C.dlerror()
- p := C.dlsym(l.Handle, sym)
- e := C.dlerror()
- if e != nil {
- return nil, fmt.Errorf("error resolving symbol %q: %v", symbol, errors.New(C.GoString(e)))
- }
-
- return p, nil
-}
-
-// Close closes a LibHandle.
-func (l *LibHandle) Close() error {
- C.dlerror()
- C.dlclose(l.Handle)
- e := C.dlerror()
- if e != nil {
- return fmt.Errorf("error closing %v: %v", l.Libname, errors.New(C.GoString(e)))
- }
-
- return nil
-}