updater_invocation.h

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef UPDATER_INVOCATION_H

#define UPDATER_INVOCATION_H

#include "updatedefines.h"

extern const NS_tchar* firstUpdateInvocationArg;

extern const NS_tchar* secondUpdateInvocationArg;

/**

 * This enum and its related functions are intended for interpreting the passed

 * parameter and using it to determine whether this is the first or second

 * invocation of the updater.

*/

enum class UpdaterInvocation {

  // The initial invocation of the updater. This may apply the update, or it may

  // start the second invocation of the updater to update depending on whether

  // elevation is required.

  // This invocation always does all modifications of the update directory and

  // calls the callback application, even if another updater is launched.

  First,

  // The second invocation of the updater. This basically applies the update to

  // the installation directory, calls PostUpdate (on Windows) and exits.

  Second,

  // It cannot be determined that we are doing either of the above invocations.

  // This generally represents an uninitialized value or an error.

  Unknown,

  // There is some kind of error.

  Error,

};

const char* updaterInvocationToString(UpdaterInvocation value);

UpdaterInvocation getUpdaterInvocationFromArg(const NS_tchar* argument);

#endif