energy/cef/types-stream-reader.go

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//----------------------------------------
//
// Copyright © yanghy. All Rights Reserved.
//
// Licensed under Apache License Version 2.0, January 2004
//
// https://www.apache.org/licenses/LICENSE-2.0
//
//----------------------------------------
package cef
import (
"github.com/energye/energy/v2/cef/internal/def"
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"github.com/energye/energy/v2/common/imports"
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"github.com/energye/golcl/lcl"
"github.com/energye/golcl/lcl/api"
"unsafe"
)
// StreamReaderRef -> ICefStreamReader
var StreamReaderRef streamReader
type streamReader uintptr
func (*streamReader) UnWrap(data *ICefStreamReader) *ICefStreamReader {
var result uintptr
imports.Proc(def.CefStreamReaderRef_UnWrap).Call(data.Instance(), uintptr(unsafe.Pointer(&result)))
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if result != 0 {
data.instance = unsafe.Pointer(result)
return data
}
return nil
}
func (*streamReader) NewForFile(filename string) *ICefStreamReader {
var result uintptr
imports.Proc(def.CefStreamReaderRef_CreateForFile).Call(api.PascalStr(filename), uintptr(unsafe.Pointer(&result)))
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if result != 0 {
return &ICefStreamReader{instance: unsafe.Pointer(result)}
}
return nil
}
func (*streamReader) NewForStream(stream lcl.IStream, owned bool) *ICefStreamReader {
var result uintptr
imports.Proc(def.CefStreamReaderRef_CreateForStream).Call(stream.Instance(), api.PascalBool(owned), uintptr(unsafe.Pointer(&result)))
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if result != 0 {
return &ICefStreamReader{instance: unsafe.Pointer(result)}
}
return nil
}
func (*streamReader) NewForData(data []byte) *ICefStreamReader {
var result uintptr
imports.Proc(def.CefStreamReaderRef_CreateForData).Call(uintptr(unsafe.Pointer(&data[0])), uintptr(uint32(len(data))), uintptr(unsafe.Pointer(&result)))
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if result != 0 {
return &ICefStreamReader{instance: unsafe.Pointer(result)}
}
return nil
}
// Instance 实例
func (m *ICefStreamReader) Instance() uintptr {
if m == nil {
return 0
}
return uintptr(m.instance)
}
func (m *ICefStreamReader) Free() {
if m.instance != nil {
m.base.Free(m.Instance())
m.instance = nil
}
}
func (m *ICefStreamReader) IsValid() bool {
if m == nil || m.instance == nil {
return false
}
return m.instance != nil
}
func (m *ICefStreamReader) Read(data []byte, size, n uint32) uint32 {
if !m.IsValid() {
return 0
}
r1, _, _ := imports.Proc(def.CefStreamReader_Read).Call(m.Instance(), uintptr(unsafe.Pointer(&data[0])), uintptr(size), uintptr(n))
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return uint32(r1)
}
func (m *ICefStreamReader) Seek(offset int64, whence int32) int32 {
if !m.IsValid() {
return 0
}
r1, _, _ := imports.Proc(def.CefStreamReader_Seek).Call(m.Instance(), uintptr(offset), uintptr(whence))
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return int32(r1)
}
func (m *ICefStreamReader) Tell() (result int64) {
if !m.IsValid() {
return 0
}
imports.Proc(def.CefStreamReader_Tell).Call(m.Instance(), uintptr(unsafe.Pointer(&result)))
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return result
}
func (m *ICefStreamReader) Eof() bool {
if !m.IsValid() {
return false
}
r1, _, _ := imports.Proc(def.CefStreamReader_Eof).Call(m.Instance())
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return api.GoBool(r1)
}
func (m *ICefStreamReader) MayBlock() bool {
if !m.IsValid() {
return false
}
r1, _, _ := imports.Proc(def.CefStreamReader_MayBlock).Call(m.Instance())
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return api.GoBool(r1)
}