154 lines
3.5 KiB
Go
154 lines
3.5 KiB
Go
// Package io provides the Chrome Debugging Protocol
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// commands, types, and events for the Chrome IO domain.
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//
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// Input/Output operations for streams produced by DevTools.
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//
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// Generated by the chromedp-gen command.
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package io
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// AUTOGENERATED. DO NOT EDIT.
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import (
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"context"
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cdp "github.com/knq/chromedp/cdp"
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"github.com/mailru/easyjson"
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)
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// ReadParams read a chunk of the stream.
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type ReadParams struct {
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Handle StreamHandle `json:"handle"` // Handle of the stream to read.
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Offset int64 `json:"offset,omitempty"` // Seek to the specified offset before reading (if not specificed, proceed with offset following the last read).
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Size int64 `json:"size,omitempty"` // Maximum number of bytes to read (left upon the agent discretion if not specified).
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}
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// Read read a chunk of the stream.
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//
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// parameters:
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// handle - Handle of the stream to read.
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func Read(handle StreamHandle) *ReadParams {
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return &ReadParams{
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Handle: handle,
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}
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}
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// WithOffset seek to the specified offset before reading (if not specificed,
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// proceed with offset following the last read).
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func (p ReadParams) WithOffset(offset int64) *ReadParams {
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p.Offset = offset
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return &p
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}
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// WithSize maximum number of bytes to read (left upon the agent discretion
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// if not specified).
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func (p ReadParams) WithSize(size int64) *ReadParams {
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p.Size = size
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return &p
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}
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// ReadReturns return values.
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type ReadReturns struct {
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Data string `json:"data,omitempty"` // Data that were read.
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EOF bool `json:"eof,omitempty"` // Set if the end-of-file condition occured while reading.
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}
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// Do executes IO.read.
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//
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// returns:
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// data - Data that were read.
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// eof - Set if the end-of-file condition occured while reading.
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func (p *ReadParams) Do(ctxt context.Context, h cdp.FrameHandler) (data string, eof bool, err error) {
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if ctxt == nil {
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ctxt = context.Background()
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}
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// marshal
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buf, err := easyjson.Marshal(p)
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if err != nil {
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return "", false, err
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}
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// execute
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ch := h.Execute(ctxt, cdp.CommandIORead, easyjson.RawMessage(buf))
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// read response
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select {
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case res := <-ch:
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if res == nil {
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return "", false, cdp.ErrChannelClosed
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}
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switch v := res.(type) {
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case easyjson.RawMessage:
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// unmarshal
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var r ReadReturns
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err = easyjson.Unmarshal(v, &r)
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if err != nil {
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return "", false, cdp.ErrInvalidResult
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}
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return r.Data, r.EOF, nil
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case error:
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return "", false, v
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}
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case <-ctxt.Done():
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return "", false, cdp.ErrContextDone
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}
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return "", false, cdp.ErrUnknownResult
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}
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// CloseParams close the stream, discard any temporary backing storage.
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type CloseParams struct {
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Handle StreamHandle `json:"handle"` // Handle of the stream to close.
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}
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// Close close the stream, discard any temporary backing storage.
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//
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// parameters:
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// handle - Handle of the stream to close.
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func Close(handle StreamHandle) *CloseParams {
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return &CloseParams{
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Handle: handle,
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}
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}
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// Do executes IO.close.
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func (p *CloseParams) Do(ctxt context.Context, h cdp.FrameHandler) (err error) {
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if ctxt == nil {
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ctxt = context.Background()
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}
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// marshal
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buf, err := easyjson.Marshal(p)
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if err != nil {
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return err
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}
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// execute
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ch := h.Execute(ctxt, cdp.CommandIOClose, easyjson.RawMessage(buf))
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// read response
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select {
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case res := <-ch:
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if res == nil {
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return cdp.ErrChannelClosed
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}
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switch v := res.(type) {
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case easyjson.RawMessage:
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return nil
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case error:
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return v
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}
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case <-ctxt.Done():
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return cdp.ErrContextDone
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}
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return cdp.ErrUnknownResult
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}
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