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Unlike a plain `net/http/client.Do()`, requests made through client/request use the `sendRequest` function, which parses the server response, and may convert non-transport errors into errors (through `cli.checkResponseErr()`). This means that we cannot assume that no reader was opened if an error is returned. This patch changes various locations where `ensureReaderClosed` was only called in the non-error situation, and uses a `defer` to make sure it's always called. `ensureReaderClosed` itself already checks if the response's body was set, so in situations where the error was due to a transport error, calling `ensureReaderClosed` should be a no-op. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
28 lines
745 B
Go
28 lines
745 B
Go
package client // import "github.com/docker/docker/client"
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import (
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"context"
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"encoding/json"
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"net/url"
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"strings"
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"github.com/docker/docker/api/types/container"
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)
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// ContainerTop shows process information from within a container.
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func (cli *Client) ContainerTop(ctx context.Context, containerID string, arguments []string) (container.ContainerTopOKBody, error) {
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var response container.ContainerTopOKBody
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query := url.Values{}
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if len(arguments) > 0 {
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query.Set("ps_args", strings.Join(arguments, " "))
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}
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resp, err := cli.get(ctx, "/containers/"+containerID+"/top", query, nil)
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defer ensureReaderClosed(resp)
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if err != nil {
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return response, err
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}
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err = json.NewDecoder(resp.body).Decode(&response)
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return response, err
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}
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