GSystem-1.0.d.ts

/*
 * Type Definitions for Gjs (https://gjs.guide/)
 *
 * These type definitions are automatically generated, do not edit them by hand.
 * If you found a bug fix it in ts-for-gir itself or create a bug report on https://github.com/sammydre/ts-for-gjs
 */
/**
 * GSystem-1.0
 */

import type * as Gjs from './Gjs';
import type Gio from './Gio-2.0';
import type GObject from './GObject-2.0';
import type GLib from './GLib-2.0';

export namespace GSystem {

/**
 * Flags to define the behaviour of the standard input/output/error of
 * a #GSSubprocess.
 */
enum SubprocessStreamDisposition {
    /**
     * Redirect to operating system's null output stream
     */
    NULL,
    /**
     * Keep the stream from the parent process
     */
    INHERIT,
    /**
     * Open a private unidirectional channel between the processes
     */
    PIPE,
    /**
     * Only applicable to standard error; causes it to be merged with standard output
     */
    STDERR_MERGE,
}
function dfd_and_name_get_all_xattrs(dfd: number, name: string, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_xattrs */ GLib.Variant ]
function dfd_and_name_set_all_xattrs(dfd: number, name: string, xattrs: GLib.Variant, cancellable?: Gio.Cancellable | null): boolean
function dirfd_iterator_clear(dfd_iter: DirFdIterator): void
function dirfd_iterator_init_at(dfd: number, path: string, follow: boolean, dfd_iter: DirFdIterator): boolean
function dirfd_iterator_init_take_fd(dfd: number, dfd_iter: DirFdIterator): boolean
function fd_get_all_xattrs(fd: number, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_xattrs */ GLib.Variant ]
function fd_set_all_xattrs(fd: number, xattrs: GLib.Variant, cancellable?: Gio.Cancellable | null): boolean
function file_chmod(path: Gio.File, mode: number, cancellable?: Gio.Cancellable | null): boolean
function file_chown(path: Gio.File, owner: number, group: number, cancellable?: Gio.Cancellable | null): boolean
function file_create(file: Gio.File, mode: number, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_stream */ Gio.OutputStream | null ]
function file_ensure_directory(dir: Gio.File, with_parents: boolean, cancellable?: Gio.Cancellable | null): boolean
function file_ensure_directory_mode(dir: Gio.File, mode: number, cancellable?: Gio.Cancellable | null): boolean
function file_enumerator_iterate(direnum: Gio.FileEnumerator, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_info */ Gio.FileInfo | null, /* out_child */ Gio.File | null ]
function file_get_all_xattrs(f: Gio.File, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_xattrs */ GLib.Variant ]
function file_get_basename_cached(file: Gio.File): string
function file_get_path_cached(file: Gio.File): string
function file_get_relpath(one: Gio.File, two: Gio.File): string
function file_lchown(path: Gio.File, owner: number, group: number, cancellable?: Gio.Cancellable | null): boolean
function file_linkcopy(src: Gio.File, dest: Gio.File, flags: Gio.FileCopyFlags, cancellable?: Gio.Cancellable | null): boolean
function file_linkcopy_sync_data(src: Gio.File, dest: Gio.File, flags: Gio.FileCopyFlags, cancellable?: Gio.Cancellable | null): boolean
function file_load_contents_utf8(file: Gio.File, cancellable?: Gio.Cancellable | null): string
function file_map_readonly(file: Gio.File, cancellable?: Gio.Cancellable | null): GLib.Bytes
function file_open_dir_fd(path: Gio.File, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_fd */ number ]
function file_open_dir_fd_at(parent_dfd: number, name: string, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_fd */ number ]
function file_open_in_tmpdir(tmpdir: Gio.File, mode: number, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_file */ Gio.File, /* out_stream */ Gio.OutputStream | null ]
function file_open_in_tmpdir_at(tmpdir_fd: number, mode: number, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_name */ string, /* out_stream */ Gio.OutputStream | null ]
function file_openat_noatime(dfd: number, name: string, cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* ret_fd */ number ]
function file_read_noatime(file: Gio.File, cancellable?: Gio.Cancellable | null): Gio.InputStream
function file_realpath(file: Gio.File): Gio.File | null
function file_rename(from: Gio.File, to: Gio.File, cancellable?: Gio.Cancellable | null): boolean
function file_set_all_xattrs(file: Gio.File, xattrs: GLib.Variant, cancellable?: Gio.Cancellable | null): boolean
function file_sync_data(file: Gio.File, cancellable?: Gio.Cancellable | null): boolean
function file_unlink(path: Gio.File, cancellable?: Gio.Cancellable | null): boolean
function fileutil_gen_tmp_name(prefix?: string | null, suffix?: string | null): string
function log_structured(message: string, keys?: string[] | null): void
function log_structured_print(message: string, keys?: string[] | null): void
function opendirat(dfd: number, path: string, follow: boolean, out_fd: number): boolean
function opendirat_with_errno(dfd: number, path: string, follow: boolean): number
function set_error_from_errno(error: GLib.Error | null, saved_errno: number): void
function shutil_cp_a(src: Gio.File, dest: Gio.File, cancellable?: Gio.Cancellable | null): boolean
function shutil_cp_al_or_fallback(src: Gio.File, dest: Gio.File, cancellable?: Gio.Cancellable | null): boolean
function shutil_rm_rf(path: Gio.File, cancellable?: Gio.Cancellable | null): boolean
function shutil_rm_rf_at(dfd: number, path: string, cancellable?: Gio.Cancellable | null): boolean
function stdout_is_journal(): boolean
interface Console_ConstructProps extends GObject.Object_ConstructProps {
}
class Console {
    /* Fields of GObject-2.0.GObject.Object */
    g_type_instance: GObject.TypeInstance
    /* Methods of GSystem-1.0.GSystem.Console */
    /**
     * The primary use case for this function is to output periodic
     * "status" or "progress" information.  The first time this function
     * is called, `line` will be output normally.  Subsequent invocations
     * will overwrite the previous.
     * 
     * You must invoke gs_console_end_status_line() to return the console
     * to normal mode.  In particular, concurrent use of this function and
     * the stream returned by gs_console_get_stdout() results in undefined
     * behavior.
     * @param line String to output
     * @param cancellable 
     */
    begin_status_line(line: string, cancellable?: Gio.Cancellable | null): boolean
    /**
     * Complete a series of invocations of gs_console_begin_status_line(),
     * returning the stream to normal mode.  The last printed status line
     * remains on the console; if this is not desired, print an empty
     * string to clear it before invoking this function.
     * @param cancellable 
     */
    end_status_line(cancellable?: Gio.Cancellable | null): boolean
    /**
     * Write `prompt` to standard output, then switch output echo off, read
     * a result string, then switch output echo back on.
     * @param prompt A string to output before reading the password
     * @param cancellable 
     */
    read_password(prompt: string, cancellable?: Gio.Cancellable | null): string
    /* Methods of GObject-2.0.GObject.Object */
    /**
     * Creates a binding between `source_property` on `source` and `target_property`
     * on `target`.
     * 
     * Whenever the `source_property` is changed the `target_property` is
     * updated using the same value. For instance:
     * 
     * 
     * ```c
     *   g_object_bind_property (action, "active", widget, "sensitive", 0);
     * ```
     * 
     * 
     * Will result in the "sensitive" property of the widget #GObject instance to be
     * updated with the same value of the "active" property of the action #GObject
     * instance.
     * 
     * If `flags` contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual:
     * if `target_property` on `target` changes then the `source_property` on `source`
     * will be updated as well.
     * 
     * The binding will automatically be removed when either the `source` or the
     * `target` instances are finalized. To remove the binding without affecting the
     * `source` and the `target` you can just call g_object_unref() on the returned
     * #GBinding instance.
     * 
     * Removing the binding by calling g_object_unref() on it must only be done if
     * the binding, `source` and `target` are only used from a single thread and it
     * is clear that both `source` and `target` outlive the binding. Especially it
     * is not safe to rely on this if the binding, `source` or `target` can be
     * finalized from different threads. Keep another reference to the binding and
     * use g_binding_unbind() instead to be on the safe side.
     * 
     * A #GObject can have multiple bindings.
     * @param source_property the property on `source` to bind
     * @param target the target #GObject
     * @param target_property the property on `target` to bind
     * @param flags flags to pass to #GBinding
     */
    bind_property(source_property: string, target: GObject.Object, target_property: string, flags: GObject.BindingFlags): GObject.Binding
    /**
     * Creates a binding between `source_property` on `source` and `target_property`
     * on `target,` allowing you to set the transformation functions to be used by
     * the binding.
     * 
     * This function is the language bindings friendly version of
     * g_object_bind_property_full(), using #GClosures instead of
     * function pointers.
     * @param source_property the property on `source` to bind
     * @param target the target #GObject
     * @param target_property the property on `target` to bind
     * @param flags flags to pass to #GBinding
     * @param transform_to a #GClosure wrapping the transformation function     from the `source` to the `target,` or %NULL to use the default
     * @param transform_from a #GClosure wrapping the transformation function     from the `target` to the `source,` or %NULL to use the default
     */
    bind_property_full(source_property: string, target: GObject.Object, target_property: string, flags: GObject.BindingFlags, transform_to: Function, transform_from: Function): GObject.Binding
    /**
     * This function is intended for #GObject implementations to re-enforce
     * a [floating][floating-ref] object reference. Doing this is seldom
     * required: all #GInitiallyUnowneds are created with a floating reference
     * which usually just needs to be sunken by calling g_object_ref_sink().
     */
    force_floating(): void
    /**
     * Increases the freeze count on `object`. If the freeze count is
     * non-zero, the emission of "notify" signals on `object` is
     * stopped. The signals are queued until the freeze count is decreased
     * to zero. Duplicate notifications are squashed so that at most one
     * #GObject::notify signal is emitted for each property modified while the
     * object is frozen.
     * 
     * This is necessary for accessors that modify multiple properties to prevent
     * premature notification while the object is still being modified.
     */
    freeze_notify(): void
    /**
     * Gets a named field from the objects table of associations (see g_object_set_data()).
     * @param key name of the key for that association
     */
    get_data(key: string): object | null
    /**
     * Gets a property of an object.
     * 
     * The `value` can be:
     * 
     *  - an empty #GValue initialized by %G_VALUE_INIT, which will be
     *    automatically initialized with the expected type of the property
     *    (since GLib 2.60)
     *  - a #GValue initialized with the expected type of the property
     *  - a #GValue initialized with a type to which the expected type
     *    of the property can be transformed
     * 
     * In general, a copy is made of the property contents and the caller is
     * responsible for freeing the memory by calling g_value_unset().
     * 
     * Note that g_object_get_property() is really intended for language
     * bindings, g_object_get() is much more convenient for C programming.
     * @param property_name the name of the property to get
     * @param value return location for the property value
     */
    get_property(property_name: string, value: any): void
    /**
     * This function gets back user data pointers stored via
     * g_object_set_qdata().
     * @param quark A #GQuark, naming the user data pointer
     */
    get_qdata(quark: GLib.Quark): object | null
    /**
     * Gets `n_properties` properties for an `object`.
     * Obtained properties will be set to `values`. All properties must be valid.
     * Warnings will be emitted and undefined behaviour may result if invalid
     * properties are passed in.
     * @param names the names of each property to get
     * @param values the values of each property to get
     */
    getv(names: string[], values: any[]): void
    /**
     * Checks whether `object` has a [floating][floating-ref] reference.
     */
    is_floating(): boolean
    /**
     * Emits a "notify" signal for the property `property_name` on `object`.
     * 
     * When possible, eg. when signaling a property change from within the class
     * that registered the property, you should use g_object_notify_by_pspec()
     * instead.
     * 
     * Note that emission of the notify signal may be blocked with
     * g_object_freeze_notify(). In this case, the signal emissions are queued
     * and will be emitted (in reverse order) when g_object_thaw_notify() is
     * called.
     * @param property_name the name of a property installed on the class of `object`.
     */
    notify(property_name: string): void
    /**
     * Emits a "notify" signal for the property specified by `pspec` on `object`.
     * 
     * This function omits the property name lookup, hence it is faster than
     * g_object_notify().
     * 
     * One way to avoid using g_object_notify() from within the
     * class that registered the properties, and using g_object_notify_by_pspec()
     * instead, is to store the GParamSpec used with
     * g_object_class_install_property() inside a static array, e.g.:
     * 
     * 
     * ```c
     *   enum
     *   {
     *     PROP_0,
     *     PROP_FOO,
     *     PROP_LAST
     *   };
     * 
     *   static GParamSpec *properties[PROP_LAST];
     * 
     *   static void
     *   my_object_class_init (MyObjectClass *klass)
     *   {
     *     properties[PROP_FOO] = g_param_spec_int ("foo", "Foo", "The foo",
     *                                              0, 100,
     *                                              50,
     *                                              G_PARAM_READWRITE);
     *     g_object_class_install_property (gobject_class,
     *                                      PROP_FOO,
     *                                      properties[PROP_FOO]);
     *   }
     * ```
     * 
     * 
     * and then notify a change on the "foo" property with:
     * 
     * 
     * ```c
     *   g_object_notify_by_pspec (self, properties[PROP_FOO]);
     * ```
     * 
     * @param pspec the #GParamSpec of a property installed on the class of `object`.
     */
    notify_by_pspec(pspec: GObject.ParamSpec): void
    /**
     * Increases the reference count of `object`.
     * 
     * Since GLib 2.56, if `GLIB_VERSION_MAX_ALLOWED` is 2.56 or greater, the type
     * of `object` will be propagated to the return type (using the GCC typeof()
     * extension), so any casting the caller needs to do on the return type must be
     * explicit.
     */
    ref(): GObject.Object
    /**
     * Increase the reference count of `object,` and possibly remove the
     * [floating][floating-ref] reference, if `object` has a floating reference.
     * 
     * In other words, if the object is floating, then this call "assumes
     * ownership" of the floating reference, converting it to a normal
     * reference by clearing the floating flag while leaving the reference
     * count unchanged.  If the object is not floating, then this call
     * adds a new normal reference increasing the reference count by one.
     * 
     * Since GLib 2.56, the type of `object` will be propagated to the return type
     * under the same conditions as for g_object_ref().
     */
    ref_sink(): GObject.Object
    /**
     * Releases all references to other objects. This can be used to break
     * reference cycles.
     * 
     * This function should only be called from object system implementations.
     */
    run_dispose(): void
    /**
     * Each object carries around a table of associations from
     * strings to pointers.  This function lets you set an association.
     * 
     * If the object already had an association with that name,
     * the old association will be destroyed.
     * 
     * Internally, the `key` is converted to a #GQuark using g_quark_from_string().
     * This means a copy of `key` is kept permanently (even after `object` has been
     * finalized) — so it is recommended to only use a small, bounded set of values
     * for `key` in your program, to avoid the #GQuark storage growing unbounded.
     * @param key name of the key
     * @param data data to associate with that key
     */
    set_data(key: string, data?: object | null): void
    /**
     * Sets a property on an object.
     * @param property_name the name of the property to set
     * @param value the value
     */
    set_property(property_name: string, value: any): void
    /**
     * Remove a specified datum from the object's data associations,
     * without invoking the association's destroy handler.
     * @param key name of the key
     */
    steal_data(key: string): object | null
    /**
     * This function gets back user data pointers stored via
     * g_object_set_qdata() and removes the `data` from object
     * without invoking its destroy() function (if any was
     * set).
     * Usually, calling this function is only required to update
     * user data pointers with a destroy notifier, for example:
     * 
     * ```c
     * void
     * object_add_to_user_list (GObject     *object,
     *                          const gchar *new_string)
     * {
     *   // the quark, naming the object data
     *   GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
     *   // retrieve the old string list
     *   GList *list = g_object_steal_qdata (object, quark_string_list);
     * 
     *   // prepend new string
     *   list = g_list_prepend (list, g_strdup (new_string));
     *   // this changed 'list', so we need to set it again
     *   g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
     * }
     * static void
     * free_string_list (gpointer data)
     * {
     *   GList *node, *list = data;
     * 
     *   for (node = list; node; node = node->next)
     *     g_free (node->data);
     *   g_list_free (list);
     * }
     * ```
     * 
     * Using g_object_get_qdata() in the above example, instead of
     * g_object_steal_qdata() would have left the destroy function set,
     * and thus the partial string list would have been freed upon
     * g_object_set_qdata_full().
     * @param quark A #GQuark, naming the user data pointer
     */
    steal_qdata(quark: GLib.Quark): object | null
    /**
     * Reverts the effect of a previous call to
     * g_object_freeze_notify(). The freeze count is decreased on `object`
     * and when it reaches zero, queued "notify" signals are emitted.
     * 
     * Duplicate notifications for each property are squashed so that at most one
     * #GObject::notify signal is emitted for each property, in the reverse order
     * in which they have been queued.
     * 
     * It is an error to call this function when the freeze count is zero.
     */
    thaw_notify(): void
    /**
     * Decreases the reference count of `object`. When its reference count
     * drops to 0, the object is finalized (i.e. its memory is freed).
     * 
     * If the pointer to the #GObject may be reused in future (for example, if it is
     * an instance variable of another object), it is recommended to clear the
     * pointer to %NULL rather than retain a dangling pointer to a potentially
     * invalid #GObject instance. Use g_clear_object() for this.
     */
    unref(): void
    /**
     * This function essentially limits the life time of the `closure` to
     * the life time of the object. That is, when the object is finalized,
     * the `closure` is invalidated by calling g_closure_invalidate() on
     * it, in order to prevent invocations of the closure with a finalized
     * (nonexisting) object. Also, g_object_ref() and g_object_unref() are
     * added as marshal guards to the `closure,` to ensure that an extra
     * reference count is held on `object` during invocation of the
     * `closure`.  Usually, this function will be called on closures that
     * use this `object` as closure data.
     * @param closure #GClosure to watch
     */
    watch_closure(closure: Function): void
    /* Virtual methods of GObject-2.0.GObject.Object */
    vfunc_constructed(): void
    vfunc_dispatch_properties_changed(n_pspecs: number, pspecs: GObject.ParamSpec): void
    vfunc_dispose(): void
    vfunc_finalize(): void
    vfunc_get_property(property_id: number, value: any, pspec: GObject.ParamSpec): void
    /**
     * Emits a "notify" signal for the property `property_name` on `object`.
     * 
     * When possible, eg. when signaling a property change from within the class
     * that registered the property, you should use g_object_notify_by_pspec()
     * instead.
     * 
     * Note that emission of the notify signal may be blocked with
     * g_object_freeze_notify(). In this case, the signal emissions are queued
     * and will be emitted (in reverse order) when g_object_thaw_notify() is
     * called.
     * @param pspec 
     */
    vfunc_notify(pspec: GObject.ParamSpec): void
    vfunc_set_property(property_id: number, value: any, pspec: GObject.ParamSpec): void
    /* Signals of GObject-2.0.GObject.Object */
    /**
     * The notify signal is emitted on an object when one of its properties has
     * its value set through g_object_set_property(), g_object_set(), et al.
     * 
     * Note that getting this signal doesn’t itself guarantee that the value of
     * the property has actually changed. When it is emitted is determined by the
     * derived GObject class. If the implementor did not create the property with
     * %G_PARAM_EXPLICIT_NOTIFY, then any call to g_object_set_property() results
     * in ::notify being emitted, even if the new value is the same as the old.
     * If they did pass %G_PARAM_EXPLICIT_NOTIFY, then this signal is emitted only
     * when they explicitly call g_object_notify() or g_object_notify_by_pspec(),
     * and common practice is to do that only when the value has actually changed.
     * 
     * This signal is typically used to obtain change notification for a
     * single property, by specifying the property name as a detail in the
     * g_signal_connect() call, like this:
     * 
     * 
     * ```c
     * g_signal_connect (text_view->buffer, "notify::paste-target-list",
     *                   G_CALLBACK (gtk_text_view_target_list_notify),
     *                   text_view)
     * ```
     * 
     * 
     * It is important to note that you must use
     * [canonical parameter names][canonical-parameter-names] as
     * detail strings for the notify signal.
     * @param pspec the #GParamSpec of the property which changed.
     */
    connect(sigName: "notify", callback: (($obj: Console, pspec: GObject.ParamSpec) => void)): number
    connect_after(sigName: "notify", callback: (($obj: Console, pspec: GObject.ParamSpec) => void)): number
    emit(sigName: "notify", pspec: GObject.ParamSpec): void
    connect(sigName: string, callback: any): number
    connect_after(sigName: string, callback: any): number
    emit(sigName: string, ...args: any[]): void
    disconnect(id: number): void
    static name: string
    constructor (config?: Console_ConstructProps)
    _init (config?: Console_ConstructProps): void
    /* Static methods and pseudo-constructors */
    /**
     * If the current process has an interactive console, return the
     * singleton #GSConsole instance.  On Unix, this is equivalent to
     * isatty().  For all other cases, such as pipes, sockets, /dev/null,
     * this function will return %NULL.
     */
    static get(): Console
    static get_stderr(): Gio.OutputStream
    static get_stdin(): Gio.InputStream
    static get_stdout(): Gio.OutputStream
    static $gtype: GObject.Type
}
interface Subprocess_ConstructProps extends GObject.Object_ConstructProps {
    /* Constructor properties of GSystem-1.0.GSystem.Subprocess */
    context?: SubprocessContext
}
class Subprocess {
    /* Properties of GSystem-1.0.GSystem.Subprocess */
    readonly context: SubprocessContext
    /* Fields of GObject-2.0.GObject.Object */
    g_type_instance: GObject.TypeInstance
    /* Methods of GSystem-1.0.GSystem.Subprocess */
    /**
     * Use an operating-system specific method to attempt an immediate,
     * forceful termination of the process.  There is no mechanism to
     * determine whether or not the request itself was successful;
     * however, you can use gs_subprocess_wait() to monitor the status of
     * the process after calling this function.
     * 
     * On Unix, this function sends %SIGKILL.
     */
    force_exit(): void
    /**
     * The identifier for this child process; it is valid as long as the
     * process `self` is referenced.  In particular, do
     * <emphasis>not</emphasis> call g_spawn_close_pid() on this value;
     * that is handled internally.
     * 
     * On some Unix versions, it is possible for there to be a race
     * condition where waitpid() may have been called to collect the child
     * before any watches (such as that installed by
     * gs_subprocess_add_watch()) have fired.  If you are planning to use
     * native functions such as kill() on the pid, your program should
     * gracefully handle an %ESRCH result to mitigate this.
     * 
     * If you want to request process termination, using the high level
     * gs_subprocess_request_exit() and gs_subprocess_force_exit() API is
     * recommended.
     */
    get_pid(): GLib.Pid
    get_stderr_pipe(): Gio.InputStream
    get_stdin_pipe(): Gio.OutputStream
    get_stdout_pipe(): Gio.InputStream
    /**
     * This API uses an operating-system specific mechanism to request
     * that the subprocess gracefully exit.  This API is not available on
     * all operating systems; for those not supported, it will do nothing
     * and return %FALSE.  Portable code should handle this situation
     * gracefully.  For example, if you are communicating via input or
     * output pipe with the child, many programs will automatically exit
     * when one of their standard input or output are closed.
     * 
     * On Unix, this API sends %SIGTERM.
     * 
     * A %TRUE return value does <emphasis>not</emphasis> mean the
     * subprocess has exited, merely that an exit request was initiated.
     * You can use gs_subprocess_add_watch() to monitor the status of the
     * process after calling this function.
     * 
     * This function returns %TRUE if the process has already exited.
     */
    request_exit(): boolean
    /**
     * Start an asynchronous wait for the subprocess `self` to exit.
     * @param cancellable a #GCancellable
     * @param callback Invoked when process exits, or `cancellable` is cancelled
     */
    wait(cancellable?: Gio.Cancellable | null, callback?: Gio.AsyncReadyCallback | null): void
    /**
     * The exit status of the process will be stored in `out_exit_status`.
     * See the documentation of g_spawn_check_exit_status() for more
     * details.
     * 
     * Note that `error` is not set if the process exits abnormally; you
     * must use g_spawn_check_exit_status() for that.
     * @param result a #GAsyncResult
     */
    wait_finish(result: Gio.AsyncResult): [ /* returnType */ boolean, /* out_exit_status */ number ]
    /**
     * Synchronously wait for the subprocess to terminate, returning the
     * status code in `out_exit_status`.  See the documentation of
     * g_spawn_check_exit_status() for how to interpret it.  Note that if
     * `error` is set, then `out_exit_status` will be left uninitialized.
     * @param cancellable a #GCancellable
     */
    wait_sync(cancellable?: Gio.Cancellable | null): [ /* returnType */ boolean, /* out_exit_status */ number ]
    /**
     * Combines gs_subprocess_wait_sync() with g_spawn_check_exit_status().
     * @param cancellable a #GCancellable
     */
    wait_sync_check(cancellable?: Gio.Cancellable | null): boolean
    /* Methods of GObject-2.0.GObject.Object */
    /**
     * Creates a binding between `source_property` on `source` and `target_property`
     * on `target`.
     * 
     * Whenever the `source_property` is changed the `target_property` is
     * updated using the same value. For instance:
     * 
     * 
     * ```c
     *   g_object_bind_property (action, "active", widget, "sensitive", 0);
     * ```
     * 
     * 
     * Will result in the "sensitive" property of the widget #GObject instance to be
     * updated with the same value of the "active" property of the action #GObject
     * instance.
     * 
     * If `flags` contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual:
     * if `target_property` on `target` changes then the `source_property` on `source`
     * will be updated as well.
     * 
     * The binding will automatically be removed when either the `source` or the
     * `target` instances are finalized. To remove the binding without affecting the
     * `source` and the `target` you can just call g_object_unref() on the returned
     * #GBinding instance.
     * 
     * Removing the binding by calling g_object_unref() on it must only be done if
     * the binding, `source` and `target` are only used from a single thread and it
     * is clear that both `source` and `target` outlive the binding. Especially it
     * is not safe to rely on this if the binding, `source` or `target` can be
     * finalized from different threads. Keep another reference to the binding and
     * use g_binding_unbind() instead to be on the safe side.
     * 
     * A #GObject can have multiple bindings.
     * @param source_property the property on `source` to bind
     * @param target the target #GObject
     * @param target_property the property on `target` to bind
     * @param flags flags to pass to #GBinding
     */
    bind_property(source_property: string, target: GObject.Object, target_property: string, flags: GObject.BindingFlags): GObject.Binding
    /**
     * Creates a binding between `source_property` on `source` and `target_property`
     * on `target,` allowing you to set the transformation functions to be used by
     * the binding.
     * 
     * This function is the language bindings friendly version of
     * g_object_bind_property_full(), using #GClosures instead of
     * function pointers.
     * @param source_property the property on `source` to bind
     * @param target the target #GObject
     * @param target_property the property on `target` to bind
     * @param flags flags to pass to #GBinding
     * @param transform_to a #GClosure wrapping the transformation function     from the `source` to the `target,` or %NULL to use the default
     * @param transform_from a #GClosure wrapping the transformation function     from the `target` to the `source,` or %NULL to use the default
     */
    bind_property_full(source_property: string, target: GObject.Object, target_property: string, flags: GObject.BindingFlags, transform_to: Function, transform_from: Function): GObject.Binding
    /**
     * This function is intended for #GObject implementations to re-enforce
     * a [floating][floating-ref] object reference. Doing this is seldom
     * required: all #GInitiallyUnowneds are created with a floating reference
     * which usually just needs to be sunken by calling g_object_ref_sink().
     */
    force_floating(): void
    /**
     * Increases the freeze count on `object`. If the freeze count is
     * non-zero, the emission of "notify" signals on `object` is
     * stopped. The signals are queued until the freeze count is decreased
     * to zero. Duplicate notifications are squashed so that at most one
     * #GObject::notify signal is emitted for each property modified while the
     * object is frozen.
     * 
     * This is necessary for accessors that modify multiple properties to prevent
     * premature notification while the object is still being modified.
     */
    freeze_notify(): void
    /**
     * Gets a named field from the objects table of associations (see g_object_set_data()).
     * @param key name of the key for that association
     */
    get_data(key: string): object | null
    /**
     * Gets a property of an object.
     * 
     * The `value` can be:
     * 
     *  - an empty #GValue initialized by %G_VALUE_INIT, which will be
     *    automatically initialized with the expected type of the property
     *    (since GLib 2.60)
     *  - a #GValue initialized with the expected type of the property
     *  - a #GValue initialized with a type to which the expected type
     *    of the property can be transformed
     * 
     * In general, a copy is made of the property contents and the caller is
     * responsible for freeing the memory by calling g_value_unset().
     * 
     * Note that g_object_get_property() is really intended for language
     * bindings, g_object_get() is much more convenient for C programming.
     * @param property_name the name of the property to get
     * @param value return location for the property value
     */
    get_property(property_name: string, value: any): void
    /**
     * This function gets back user data pointers stored via
     * g_object_set_qdata().
     * @param quark A #GQuark, naming the user data pointer
     */
    get_qdata(quark: GLib.Quark): object | null
    /**
     * Gets `n_properties` properties for an `object`.
     * Obtained properties will be set to `values`. All properties must be valid.
     * Warnings will be emitted and undefined behaviour may result if invalid
     * properties are passed in.
     * @param names the names of each property to get
     * @param values the values of each property to get
     */
    getv(names: string[], values: any[]): void
    /**
     * Checks whether `object` has a [floating][floating-ref] reference.
     */
    is_floating(): boolean
    /**
     * Emits a "notify" signal for the property `property_name` on `object`.
     * 
     * When possible, eg. when signaling a property change from within the class
     * that registered the property, you should use g_object_notify_by_pspec()
     * instead.
     * 
     * Note that emission of the notify signal may be blocked with
     * g_object_freeze_notify(). In this case, the signal emissions are queued
     * and will be emitted (in reverse order) when g_object_thaw_notify() is
     * called.
     * @param property_name the name of a property installed on the class of `object`.
     */
    notify(property_name: string): void
    /**
     * Emits a "notify" signal for the property specified by `pspec` on `object`.
     * 
     * This function omits the property name lookup, hence it is faster than
     * g_object_notify().
     * 
     * One way to avoid using g_object_notify() from within the
     * class that registered the properties, and using g_object_notify_by_pspec()
     * instead, is to store the GParamSpec used with
     * g_object_class_install_property() inside a static array, e.g.:
     * 
     * 
     * ```c
     *   enum
     *   {
     *     PROP_0,
     *     PROP_FOO,
     *     PROP_LAST
     *   };
     * 
     *   static GParamSpec *properties[PROP_LAST];
     * 
     *   static void
     *   my_object_class_init (MyObjectClass *klass)
     *   {
     *     properties[PROP_FOO] = g_param_spec_int ("foo", "Foo", "The foo",
     *                                              0, 100,
     *                                              50,
     *                                              G_PARAM_READWRITE);
     *     g_object_class_install_property (gobject_class,
     *                                      PROP_FOO,
     *                                      properties[PROP_FOO]);
     *   }
     * ```
     * 
     * 
     * and then notify a change on the "foo" property with:
     * 
     * 
     * ```c
     *   g_object_notify_by_pspec (self, properties[PROP_FOO]);
     * ```
     * 
     * @param pspec the #GParamSpec of a property installed on the class of `object`.
     */
    notify_by_pspec(pspec: GObject.ParamSpec): void
    /**
     * Increases the reference count of `object`.
     * 
     * Since GLib 2.56, if `GLIB_VERSION_MAX_ALLOWED` is 2.56 or greater, the type
     * of `object` will be propagated to the return type (using the GCC typeof()
     * extension), so any casting the caller needs to do on the return type must be
     * explicit.
     */
    ref(): GObject.Object
    /**
     * Increase the reference count of `object,` and possibly remove the
     * [floating][floating-ref] reference, if `object` has a floating reference.
     * 
     * In other words, if the object is floating, then this call "assumes
     * ownership" of the floating reference, converting it to a normal
     * reference by clearing the floating flag while leaving the reference
     * count unchanged.  If the object is not floating, then this call
     * adds a new normal reference increasing the reference count by one.
     * 
     * Since GLib 2.56, the type of `object` will be propagated to the return type
     * under the same conditions as for g_object_ref().
     */
    ref_sink(): GObject.Object
    /**
     * Releases all references to other objects. This can be used to break
     * reference cycles.
     * 
     * This function should only be called from object system implementations.
     */
    run_dispose(): void
    /**
     * Each object carries around a table of associations from
     * strings to pointers.  This function lets you set an association.
     * 
     * If the object already had an association with that name,
     * the old association will be destroyed.
     * 
     * Internally, the `key` is converted to a #GQuark using g_quark_from_string().
     * This means a copy of `key` is kept permanently (even after `object` has been
     * finalized) — so it is recommended to only use a small, bounded set of values
     * for `key` in your program, to avoid the #GQuark storage growing unbounded.
     * @param key name of the key
     * @param data data to associate with that key
     */
    set_data(key: string, data?: object | null): void
    /**
     * Sets a property on an object.
     * @param property_name the name of the property to set
     * @param value the value
     */
    set_property(property_name: string, value: any): void
    /**
     * Remove a specified datum from the object's data associations,
     * without invoking the association's destroy handler.
     * @param key name of the key
     */
    steal_data(key: string): object | null
    /**
     * This function gets back user data pointers stored via
     * g_object_set_qdata() and removes the `data` from object
     * without invoking its destroy() function (if any was
     * set).
     * Usually, calling this function is only required to update
     * user data pointers with a destroy notifier, for example:
     * 
     * ```c
     * void
     * object_add_to_user_list (GObject     *object,
     *                          const gchar *new_string)
     * {
     *   // the quark, naming the object data
     *   GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
     *   // retrieve the old string list
     *   GList *list = g_object_steal_qdata (object, quark_string_list);
     * 
     *   // prepend new string
     *   list = g_list_prepend (list, g_strdup (new_string));
     *   // this changed 'list', so we need to set it again
     *   g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
     * }
     * static void
     * free_string_list (gpointer data)
     * {
     *   GList *node, *list = data;
     * 
     *   for (node = list; node; node = node->next)
     *     g_free (node->data);
     *   g_list_free (list);
     * }
     * ```
     * 
     * Using g_object_get_qdata() in the above example, instead of
     * g_object_steal_qdata() would have left the destroy function set,
     * and thus the partial string list would have been freed upon
     * g_object_set_qdata_full().
     * @param quark A #GQuark, naming the user data pointer
     */
    steal_qdata(quark: GLib.Quark): object | null
    /**
     * Reverts the effect of a previous call to
     * g_object_freeze_notify(). The freeze count is decreased on `object`
     * and when it reaches zero, queued "notify" signals are emitted.
     * 
     * Duplicate notifications for each property are squashed so that at most one
     * #GObject::notify signal is emitted for each property, in the reverse order
     * in which they have been queued.
     * 
     * It is an error to call this function when the freeze count is zero.
     */
    thaw_notify(): void
    /**
     * Decreases the reference count of `object`. When its reference count
     * drops to 0, the object is finalized (i.e. its memory is freed).
     * 
     * If the pointer to the #GObject may be reused in future (for example, if it is
     * an instance variable of another object), it is recommended to clear the
     * pointer to %NULL rather than retain a dangling pointer to a potentially
     * invalid #GObject instance. Use g_clear_object() for this.
     */
    unref(): void
    /**
     * This function essentially limits the life time of the `closure` to
     * the life time of the object. That is, when the object is finalized,
     * the `closure` is invalidated by calling g_closure_invalidate() on
     * it, in order to prevent invocations of the closure with a finalized
     * (nonexisting) object. Also, g_object_ref() and g_object_unref() are
     * added as marshal guards to the `closure,` to ensure that an extra
     * reference count is held on `object` during invocation of the
     * `closure`.  Usually, this function will be called on closures that
     * use this `object` as closure data.
     * @param closure #GClosure to watch
     */
    watch_closure(closure: Function): void
    /* Methods of Gio-2.0.Gio.Initable */
    /**
     * Initializes the object implementing the interface.
     * 
     * This method is intended for language bindings. If writing in C,
     * g_initable_new() should typically be used instead.
     * 
     * The object must be initialized before any real use after initial
     * construction, either with this function or g_async_initable_init_async().
     * 
     * Implementations may also support cancellation. If `cancellable` is not %NULL,
     * then initialization can be cancelled by triggering the cancellable object
     * from another thread. If the operation was cancelled, the error
     * %G_IO_ERROR_CANCELLED will be returned. If `cancellable` is not %NULL and
     * the object doesn't support cancellable initialization the error
     * %G_IO_ERROR_NOT_SUPPORTED will be returned.
     * 
     * If the object is not initialized, or initialization returns with an
     * error, then all operations on the object except g_object_ref() and
     * g_object_unref() are considered to be invalid, and have undefined
     * behaviour. See the [introduction][ginitable] for more details.
     * 
     * Callers should not assume that a class which implements #GInitable can be
     * initialized multiple times, unless the class explicitly documents itself as
     * supporting this. Generally, a class’ implementation of init() can assume
     * (and assert) that it will only be called once. Previously, this documentation
     * recommended all #GInitable implementations should be idempotent; that
     * recommendation was relaxed in GLib 2.54.
     * 
     * If a class explicitly supports being initialized multiple times, it is
     * recommended that the method is idempotent: multiple calls with the same
     * arguments should return the same results. Only the first call initializes
     * the object; further calls return the result of the first call.
     * 
     * One reason why a class might need to support idempotent initialization is if
     * it is designed to be used via the singleton pattern, with a
     * #GObjectClass.constructor that sometimes returns an existing instance.
     * In this pattern, a caller would expect to be able to call g_initable_init()
     * on the result of g_object_new(), regardless of whether it is in fact a new
     * instance.
     * @param cancellable optional #GCancellable object, %NULL to ignore.
     */
    init(cancellable?: Gio.Cancellable | null): boolean
    /* Virtual methods of GSystem-1.0.GSystem.Subprocess */
    /**
     * Initializes the object implementing the interface.
     * 
     * This method is intended for language bindings. If writing in C,
     * g_initable_new() should typically be used instead.
     * 
     * The object must be initialized before any real use after initial
     * construction, either with this function or g_async_initable_init_async().
     * 
     * Implementations may also support cancellation. If `cancellable` is not %NULL,
     * then initialization can be cancelled by triggering the cancellable object
     * from another thread. If the operation was cancelled, the error
     * %G_IO_ERROR_CANCELLED will be returned. If `cancellable` is not %NULL and
     * the object doesn't support cancellable initialization the error
     * %G_IO_ERROR_NOT_SUPPORTED will be returned.
     * 
     * If the object is not initialized, or initialization returns with an
     * error, then all operations on the object except g_object_ref() and
     * g_object_unref() are considered to be invalid, and have undefined
     * behaviour. See the [introduction][ginitable] for more details.
     * 
     * Callers should not assume that a class which implements #GInitable can be
     * initialized multiple times, unless the class explicitly documents itself as
     * supporting this. Generally, a class’ implementation of init() can assume
     * (and assert) that it will only be called once. Previously, this documentation
     * recommended all #GInitable implementations should be idempotent; that
     * recommendation was relaxed in GLib 2.54.
     * 
     * If a class explicitly supports being initialized multiple times, it is
     * recommended that the method is idempotent: multiple calls with the same
     * arguments should return the same results. Only the first call initializes
     * the object; further calls return the result of the first call.
     * 
     * One reason why a class might need to support idempotent initialization is if
     * it is designed to be used via the singleton pattern, with a
     * #GObjectClass.constructor that sometimes returns an existing instance.
     * In this pattern, a caller would expect to be able to call g_initable_init()
     * on the result of g_object_new(), regardless of whether it is in fact a new
     * instance.
     * @param cancellable optional #GCancellable object, %NULL to ignore.
     */
    vfunc_init(cancellable?: Gio.Cancellable | null): boolean
    /* Virtual methods of GObject-2.0.GObject.Object */
    vfunc_constructed(): void
    vfunc_dispatch_properties_changed(n_pspecs: number, pspecs: GObject.ParamSpec): void
    vfunc_dispose(): void
    vfunc_finalize(): void
    vfunc_get_property(property_id: number, value: any, pspec: GObject.ParamSpec): void
    /**
     * Emits a "notify" signal for the property `property_name` on `object`.
     * 
     * When possible, eg. when signaling a property change from within the class
     * that registered the property, you should use g_object_notify_by_pspec()
     * instead.
     * 
     * Note that emission of the notify signal may be blocked with
     * g_object_freeze_notify(). In this case, the signal emissions are queued
     * and will be emitted (in reverse order) when g_object_thaw_notify() is
     * called.
     * @param pspec 
     */
    vfunc_notify(pspec: GObject.ParamSpec): void
    vfunc_set_property(property_id: number, value: any, pspec: GObject.ParamSpec): void
    /* Signals of GObject-2.0.GObject.Object */
    /**
     * The notify signal is emitted on an object when one of its properties has
     * its value set through g_object_set_property(), g_object_set(), et al.
     * 
     * Note that getting this signal doesn’t itself guarantee that the value of
     * the property has actually changed. When it is emitted is determined by the
     * derived GObject class. If the implementor did not create the property with
     * %G_PARAM_EXPLICIT_NOTIFY, then any call to g_object_set_property() results
     * in ::notify being emitted, even if the new value is the same as the old.
     * If they did pass %G_PARAM_EXPLICIT_NOTIFY, then this signal is emitted only
     * when they explicitly call g_object_notify() or g_object_notify_by_pspec(),
     * and common practice is to do that only when the value has actually changed.
     * 
     * This signal is typically used to obtain change notification for a
     * single property, by specifying the property name as a detail in the
     * g_signal_connect() call, like this:
     * 
     * 
     * ```c
     * g_signal_connect (text_view->buffer, "notify::paste-target-list",
     *                   G_CALLBACK (gtk_text_view_target_list_notify),
     *                   text_view)
     * ```
     * 
     * 
     * It is important to note that you must use
     * [canonical parameter names][canonical-parameter-names] as
     * detail strings for the notify signal.
     * @param pspec the #GParamSpec of the property which changed.
     */
    connect(sigName: "notify", callback: (($obj: Subprocess, pspec: GObject.ParamSpec) => void)): number
    connect_after(sigName: "notify", callback: (($obj: Subprocess, pspec: GObject.ParamSpec) => void)): number
    emit(sigName: "notify", pspec: GObject.ParamSpec): void
    connect(sigName: "notify::context", callback: (($obj: Subprocess, pspec: GObject.ParamSpec) => void)): number
    connect_after(sigName: "notify::context", callback: (($obj: Subprocess, pspec: GObject.ParamSpec) => void)): number
    connect(sigName: string, callback: any): number
    connect_after(sigName: string, callback: any): number
    emit(sigName: string, ...args: any[]): void
    disconnect(id: number): void
    static name: string
    constructor (config?: Subprocess_ConstructProps)
    _init (config?: Subprocess_ConstructProps): void
    /* Static methods and pseudo-constructors */
    static new(context: SubprocessContext, cancellable?: Gio.Cancellable | null): Subprocess
    static new_simple_argv(argv: string[], stdout_disposition: SubprocessStreamDisposition, stderr_disposition: SubprocessStreamDisposition, cancellable?: Gio.Cancellable | null): Subprocess
    /**
     * Helper function for constructing #GInitable object. This is
     * similar to g_object_newv() but also initializes the object
     * and returns %NULL, setting an error on failure.
     * @param object_type a #GType supporting #GInitable.
     * @param parameters the parameters to use to construct the object
     * @param cancellable optional #GCancellable object, %NULL to ignore.
     */
    static newv(object_type: GObject.Type, parameters: GObject.Parameter[], cancellable?: Gio.Cancellable | null): GObject.Object
    static $gtype: GObject.Type
}
interface SubprocessContext_ConstructProps extends GObject.Object_ConstructProps {
    /* Constructor properties of GSystem-1.0.GSystem.SubprocessContext */
    /**
     * Array of arguments passed to child process; must have at least
     * one element.  The first element has special handling - if it is
     * an not absolute path ( as determined by g_path_is_absolute() ),
     * then the system search path will be used.  See
     * %G_SPAWN_SEARCH_PATH.
     * 
     * Note that in order to use the Unix-specific argv0 functionality,
     * you must use the setter function
     * gs_subprocess_context_set_args_and_argv0().  For more information
     * about this, see %G_SPAWN_FILE_AND_ARGV_ZERO.
     */
    argv?: string[]
}
class SubprocessContext {
    /* Properties of GSystem-1.0.GSystem.SubprocessContext */
    /**
     * Array of arguments passed to child process; must have at least
     * one element.  The first element has special handling - if it is
     * an not absolute path ( as determined by g_path_is_absolute() ),
     * then the system search path will be used.  See
     * %G_SPAWN_SEARCH_PATH.
     * 
     * Note that in order to use the Unix-specific argv0 functionality,
     * you must use the setter function
     * gs_subprocess_context_set_args_and_argv0().  For more information
     * about this, see %G_SPAWN_FILE_AND_ARGV_ZERO.
     */
    argv: string[]
    /* Fields of GObject-2.0.GObject.Object */
    g_type_instance: GObject.TypeInstance
    /* Methods of GSystem-1.0.GSystem.SubprocessContext */
    /**
     * Append an argument to the child's argument vector.
     * @param arg An argument
     */
    argv_append(arg: string): void
    /**
     * This allows you to open a pipe between the parent and child
     * processes, independent of the standard streams.  For this function,
     * the pipe is set up so that the parent can read, and the child can
     * write.  For the opposite version, see
     * gs_subprocess_context_open_pipe_write().
     * 
     * The returned `out_fdno` is the file descriptor number that the child
     * will see; you need to communicate this number via a separate
     * channel, such as the argument list.  For example, if you're using
     * this pipe to send a password, provide
     * <literal>--password-fd=&lt;fdno string&gt;</literal>.
     */
    open_pipe_read(): [ /* returnType */ boolean, /* out_stream */ Gio.InputStream, /* out_fdno */ number ]
    /**
     * Like gs_subprocess_context_open_pipe_read(), but returns a writable
     * channel from which the child process can read.
     */
    open_pipe_write(): [ /* returnType */ boolean, /* out_stream */ Gio.OutputStream, /* out_fdno */ number ]
    set_cwd(cwd: string): void
    /**
     * Replace the environment that will be used for the child process.
     * The default is to inherit the current process.
     * @param environ Environment KEY=VALUE pairs
     */
    set_environment(environ: string[]): void
    set_keep_descriptors(keep_descriptors: boolean): void
    set_search_path(search_path: boolean, search_path_from_envp: boolean): void
    set_stderr_disposition(disposition: SubprocessStreamDisposition): void
    set_stderr_fd(fd: number): void
    set_stderr_file_path(path: string): void
    set_stdin_disposition(disposition: SubprocessStreamDisposition): void
    set_stdin_fd(fd: number): void
    set_stdin_file_path(path: string): void
    set_stdout_disposition(disposition: SubprocessStreamDisposition): void
    set_stdout_fd(fd: number): void
    set_stdout_file_path(path: string): void
    /* Methods of GObject-2.0.GObject.Object */
    /**
     * Creates a binding between `source_property` on `source` and `target_property`
     * on `target`.
     * 
     * Whenever the `source_property` is changed the `target_property` is
     * updated using the same value. For instance:
     * 
     * 
     * ```c
     *   g_object_bind_property (action, "active", widget, "sensitive", 0);
     * ```
     * 
     * 
     * Will result in the "sensitive" property of the widget #GObject instance to be
     * updated with the same value of the "active" property of the action #GObject
     * instance.
     * 
     * If `flags` contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual:
     * if `target_property` on `target` changes then the `source_property` on `source`
     * will be updated as well.
     * 
     * The binding will automatically be removed when either the `source` or the
     * `target` instances are finalized. To remove the binding without affecting the
     * `source` and the `target` you can just call g_object_unref() on the returned
     * #GBinding instance.
     * 
     * Removing the binding by calling g_object_unref() on it must only be done if
     * the binding, `source` and `target` are only used from a single thread and it
     * is clear that both `source` and `target` outlive the binding. Especially it
     * is not safe to rely on this if the binding, `source` or `target` can be
     * finalized from different threads. Keep another reference to the binding and
     * use g_binding_unbind() instead to be on the safe side.
     * 
     * A #GObject can have multiple bindings.
     * @param source_property the property on `source` to bind
     * @param target the target #GObject
     * @param target_property the property on `target` to bind
     * @param flags flags to pass to #GBinding
     */
    bind_property(source_property: string, target: GObject.Object, target_property: string, flags: GObject.BindingFlags): GObject.Binding
    /**
     * Creates a binding between `source_property` on `source` and `target_property`
     * on `target,` allowing you to set the transformation functions to be used by
     * the binding.
     * 
     * This function is the language bindings friendly version of
     * g_object_bind_property_full(), using #GClosures instead of
     * function pointers.
     * @param source_property the property on `source` to bind
     * @param target the target #GObject
     * @param target_property the property on `target` to bind
     * @param flags flags to pass to #GBinding
     * @param transform_to a #GClosure wrapping the transformation function     from the `source` to the `target,` or %NULL to use the default
     * @param transform_from a #GClosure wrapping the transformation function     from the `target` to the `source,` or %NULL to use the default
     */
    bind_property_full(source_property: string, target: GObject.Object, target_property: string, flags: GObject.BindingFlags, transform_to: Function, transform_from: Function): GObject.Binding
    /**
     * This function is intended for #GObject implementations to re-enforce
     * a [floating][floating-ref] object reference. Doing this is seldom
     * required: all #GInitiallyUnowneds are created with a floating reference
     * which usually just needs to be sunken by calling g_object_ref_sink().
     */
    force_floating(): void
    /**
     * Increases the freeze count on `object`. If the freeze count is
     * non-zero, the emission of "notify" signals on `object` is
     * stopped. The signals are queued until the freeze count is decreased
     * to zero. Duplicate notifications are squashed so that at most one
     * #GObject::notify signal is emitted for each property modified while the
     * object is frozen.
     * 
     * This is necessary for accessors that modify multiple properties to prevent
     * premature notification while the object is still being modified.
     */
    freeze_notify(): void
    /**
     * Gets a named field from the objects table of associations (see g_object_set_data()).
     * @param key name of the key for that association
     */
    get_data(key: string): object | null
    /**
     * Gets a property of an object.
     * 
     * The `value` can be:
     * 
     *  - an empty #GValue initialized by %G_VALUE_INIT, which will be
     *    automatically initialized with the expected type of the property
     *    (since GLib 2.60)
     *  - a #GValue initialized with the expected type of the property
     *  - a #GValue initialized with a type to which the expected type
     *    of the property can be transformed
     * 
     * In general, a copy is made of the property contents and the caller is
     * responsible for freeing the memory by calling g_value_unset().
     * 
     * Note that g_object_get_property() is really intended for language
     * bindings, g_object_get() is much more convenient for C programming.
     * @param property_name the name of the property to get
     * @param value return location for the property value
     */
    get_property(property_name: string, value: any): void
    /**
     * This function gets back user data pointers stored via
     * g_object_set_qdata().
     * @param quark A #GQuark, naming the user data pointer
     */
    get_qdata(quark: GLib.Quark): object | null
    /**
     * Gets `n_properties` properties for an `object`.
     * Obtained properties will be set to `values`. All properties must be valid.
     * Warnings will be emitted and undefined behaviour may result if invalid
     * properties are passed in.
     * @param names the names of each property to get
     * @param values the values of each property to get
     */
    getv(names: string[], values: any[]): void
    /**
     * Checks whether `object` has a [floating][floating-ref] reference.
     */
    is_floating(): boolean
    /**
     * Emits a "notify" signal for the property `property_name` on `object`.
     * 
     * When possible, eg. when signaling a property change from within the class
     * that registered the property, you should use g_object_notify_by_pspec()
     * instead.
     * 
     * Note that emission of the notify signal may be blocked with
     * g_object_freeze_notify(). In this case, the signal emissions are queued
     * and will be emitted (in reverse order) when g_object_thaw_notify() is
     * called.
     * @param property_name the name of a property installed on the class of `object`.
     */
    notify(property_name: string): void
    /**
     * Emits a "notify" signal for the property specified by `pspec` on `object`.
     * 
     * This function omits the property name lookup, hence it is faster than
     * g_object_notify().
     * 
     * One way to avoid using g_object_notify() from within the
     * class that registered the properties, and using g_object_notify_by_pspec()
     * instead, is to store the GParamSpec used with
     * g_object_class_install_property() inside a static array, e.g.:
     * 
     * 
     * ```c
     *   enum
     *   {
     *     PROP_0,
     *     PROP_FOO,
     *     PROP_LAST
     *   };
     * 
     *   static GParamSpec *properties[PROP_LAST];
     * 
     *   static void
     *   my_object_class_init (MyObjectClass *klass)
     *   {
     *     properties[PROP_FOO] = g_param_spec_int ("foo", "Foo", "The foo",
     *                                              0, 100,
     *                                              50,
     *                                              G_PARAM_READWRITE);
     *     g_object_class_install_property (gobject_class,
     *                                      PROP_FOO,
     *                                      properties[PROP_FOO]);
     *   }
     * ```
     * 
     * 
     * and then notify a change on the "foo" property with:
     * 
     * 
     * ```c
     *   g_object_notify_by_pspec (self, properties[PROP_FOO]);
     * ```
     * 
     * @param pspec the #GParamSpec of a property installed on the class of `object`.
     */
    notify_by_pspec(pspec: GObject.ParamSpec): void
    /**
     * Increases the reference count of `object`.
     * 
     * Since GLib 2.56, if `GLIB_VERSION_MAX_ALLOWED` is 2.56 or greater, the type
     * of `object` will be propagated to the return type (using the GCC typeof()
     * extension), so any casting the caller needs to do on the return type must be
     * explicit.
     */
    ref(): GObject.Object
    /**
     * Increase the reference count of `object,` and possibly remove the
     * [floating][floating-ref] reference, if `object` has a floating reference.
     * 
     * In other words, if the object is floating, then this call "assumes
     * ownership" of the floating reference, converting it to a normal
     * reference by clearing the floating flag while leaving the reference
     * count unchanged.  If the object is not floating, then this call
     * adds a new normal reference increasing the reference count by one.
     * 
     * Since GLib 2.56, the type of `object` will be propagated to the return type
     * under the same conditions as for g_object_ref().
     */
    ref_sink(): GObject.Object
    /**
     * Releases all references to other objects. This can be used to break
     * reference cycles.
     * 
     * This function should only be called from object system implementations.
     */
    run_dispose(): void
    /**
     * Each object carries around a table of associations from
     * strings to pointers.  This function lets you set an association.
     * 
     * If the object already had an association with that name,
     * the old association will be destroyed.
     * 
     * Internally, the `key` is converted to a #GQuark using g_quark_from_string().
     * This means a copy of `key` is kept permanently (even after `object` has been
     * finalized) — so it is recommended to only use a small, bounded set of values
     * for `key` in your program, to avoid the #GQuark storage growing unbounded.
     * @param key name of the key
     * @param data data to associate with that key
     */
    set_data(key: string, data?: object | null): void
    /**
     * Sets a property on an object.
     * @param property_name the name of the property to set
     * @param value the value
     */
    set_property(property_name: string, value: any): void
    /**
     * Remove a specified datum from the object's data associations,
     * without invoking the association's destroy handler.
     * @param key name of the key
     */
    steal_data(key: string): object | null
    /**
     * This function gets back user data pointers stored via
     * g_object_set_qdata() and removes the `data` from object
     * without invoking its destroy() function (if any was
     * set).
     * Usually, calling this function is only required to update
     * user data pointers with a destroy notifier, for example:
     * 
     * ```c
     * void
     * object_add_to_user_list (GObject     *object,
     *                          const gchar *new_string)
     * {
     *   // the quark, naming the object data
     *   GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
     *   // retrieve the old string list
     *   GList *list = g_object_steal_qdata (object, quark_string_list);
     * 
     *   // prepend new string
     *   list = g_list_prepend (list, g_strdup (new_string));
     *   // this changed 'list', so we need to set it again
     *   g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
     * }
     * static void
     * free_string_list (gpointer data)
     * {
     *   GList *node, *list = data;
     * 
     *   for (node = list; node; node = node->next)
     *     g_free (node->data);
     *   g_list_free (list);
     * }
     * ```
     * 
     * Using g_object_get_qdata() in the above example, instead of
     * g_object_steal_qdata() would have left the destroy function set,
     * and thus the partial string list would have been freed upon
     * g_object_set_qdata_full().
     * @param quark A #GQuark, naming the user data pointer
     */
    steal_qdata(quark: GLib.Quark): object | null
    /**
     * Reverts the effect of a previous call to
     * g_object_freeze_notify(). The freeze count is decreased on `object`
     * and when it reaches zero, queued "notify" signals are emitted.
     * 
     * Duplicate notifications for each property are squashed so that at most one
     * #GObject::notify signal is emitted for each property, in the reverse order
     * in which they have been queued.
     * 
     * It is an error to call this function when the freeze count is zero.
     */
    thaw_notify(): void
    /**
     * Decreases the reference count of `object`. When its reference count
     * drops to 0, the object is finalized (i.e. its memory is freed).
     * 
     * If the pointer to the #GObject may be reused in future (for example, if it is
     * an instance variable of another object), it is recommended to clear the
     * pointer to %NULL rather than retain a dangling pointer to a potentially
     * invalid #GObject instance. Use g_clear_object() for this.
     */
    unref(): void
    /**
     * This function essentially limits the life time of the `closure` to
     * the life time of the object. That is, when the object is finalized,
     * the `closure` is invalidated by calling g_closure_invalidate() on
     * it, in order to prevent invocations of the closure with a finalized
     * (nonexisting) object. Also, g_object_ref() and g_object_unref() are
     * added as marshal guards to the `closure,` to ensure that an extra
     * reference count is held on `object` during invocation of the
     * `closure`.  Usually, this function will be called on closures that
     * use this `object` as closure data.
     * @param closure #GClosure to watch
     */
    watch_closure(closure: Function): void
    /* Virtual methods of GObject-2.0.GObject.Object */
    vfunc_constructed(): void
    vfunc_dispatch_properties_changed(n_pspecs: number, pspecs: GObject.ParamSpec): void
    vfunc_dispose(): void
    vfunc_finalize(): void
    vfunc_get_property(property_id: number, value: any, pspec: GObject.ParamSpec): void
    /**
     * Emits a "notify" signal for the property `property_name` on `object`.
     * 
     * When possible, eg. when signaling a property change from within the class
     * that registered the property, you should use g_object_notify_by_pspec()
     * instead.
     * 
     * Note that emission of the notify signal may be blocked with
     * g_object_freeze_notify(). In this case, the signal emissions are queued
     * and will be emitted (in reverse order) when g_object_thaw_notify() is
     * called.
     * @param pspec 
     */
    vfunc_notify(pspec: GObject.ParamSpec): void
    vfunc_set_property(property_id: number, value: any, pspec: GObject.ParamSpec): void
    /* Signals of GObject-2.0.GObject.Object */
    /**
     * The notify signal is emitted on an object when one of its properties has
     * its value set through g_object_set_property(), g_object_set(), et al.
     * 
     * Note that getting this signal doesn’t itself guarantee that the value of
     * the property has actually changed. When it is emitted is determined by the
     * derived GObject class. If the implementor did not create the property with
     * %G_PARAM_EXPLICIT_NOTIFY, then any call to g_object_set_property() results
     * in ::notify being emitted, even if the new value is the same as the old.
     * If they did pass %G_PARAM_EXPLICIT_NOTIFY, then this signal is emitted only
     * when they explicitly call g_object_notify() or g_object_notify_by_pspec(),
     * and common practice is to do that only when the value has actually changed.
     * 
     * This signal is typically used to obtain change notification for a
     * single property, by specifying the property name as a detail in the
     * g_signal_connect() call, like this:
     * 
     * 
     * ```c
     * g_signal_connect (text_view->buffer, "notify::paste-target-list",
     *                   G_CALLBACK (gtk_text_view_target_list_notify),
     *                   text_view)
     * ```
     * 
     * 
     * It is important to note that you must use
     * [canonical parameter names][canonical-parameter-names] as
     * detail strings for the notify signal.
     * @param pspec the #GParamSpec of the property which changed.
     */
    connect(sigName: "notify", callback: (($obj: SubprocessContext, pspec: GObject.ParamSpec) => void)): number
    connect_after(sigName: "notify", callback: (($obj: SubprocessContext, pspec: GObject.ParamSpec) => void)): number
    emit(sigName: "notify", pspec: GObject.ParamSpec): void
    connect(sigName: "notify::argv", callback: (($obj: SubprocessContext, pspec: GObject.ParamSpec) => void)): number
    connect_after(sigName: "notify::argv", callback: (($obj: SubprocessContext, pspec: GObject.ParamSpec) => void)): number
    connect(sigName: string, callback: any): number
    connect_after(sigName: string, callback: any): number
    emit(sigName: string, ...args: any[]): void
    disconnect(id: number): void
    static name: string
    constructor (config?: SubprocessContext_ConstructProps)
    _init (config?: SubprocessContext_ConstructProps): void
    /* Static methods and pseudo-constructors */
    static new(argv: string): SubprocessContext
    static new_argv0(argv0: string, argv: string): SubprocessContext
    static $gtype: GObject.Type
}
class DirFdIterator {
    /* Fields of GSystem-1.0.GSystem.DirFdIterator */
    initialized: boolean
    fd: number
    padding_data: object[]
    static name: string
}
}
export default GSystem;