Class

GioFileInputStream

Description [src]

class Gio.FileInputStream : Gio.InputStream
  implements Gio.Seekable {
  /* No available fields */
}

GFileInputStream provides input streams that take their content from a file.

GFileInputStream implements GSeekable, which allows the input stream to jump to arbitrary positions in the file, provided the filesystem of the file allows it. To find the position of a file input stream, use g_seekable_tell(). To find out if a file input stream supports seeking, use Gio.SeekableIface.can_seek. To position a file input stream, use Gio.SeekableIface.seek.

Ancestors

Implements

GSeekable

Instance methods

g_file_input_stream_query_info

Queries a file input stream the given attributes. This function blocks while querying the stream. For the asynchronous (non-blocking) version of this function, see g_file_input_stream_query_info_async(). While the stream is blocked, the stream will set the pending flag internally, and any other operations on the stream will fail with G_IO_ERROR_PENDING.

g_file_input_stream_query_info_async

Queries the stream information asynchronously. When the operation is finished callback will be called. You can then call g_file_input_stream_query_info_finish() to get the result of the operation.

g_file_input_stream_query_info_finish

Finishes an asynchronous info query operation.

Methods inherited from GInputStream (19)

g_input_stream_clear_pending

Clears the pending flag on stream.

g_input_stream_close

Closes the stream, releasing resources related to it.

g_input_stream_close_async

Requests an asynchronous closes of the stream, releasing resources related to it. When the operation is finished callback will be called. You can then call g_input_stream_close_finish() to get the result of the operation.

g_input_stream_close_finish

Finishes closing a stream asynchronously, started from g_input_stream_close_async().

g_input_stream_has_pending

Checks if an input stream has pending actions.

g_input_stream_is_closed

Checks if an input stream is closed.

g_input_stream_read

Tries to read count bytes from the stream into the buffer starting at buffer. Will block during this read.

g_input_stream_read_all

Tries to read count bytes from the stream into the buffer starting at buffer. Will block during this read.

g_input_stream_read_all_async

Request an asynchronous read of count bytes from the stream into the buffer starting at buffer.

since: 2.44

g_input_stream_read_all_finish

Finishes an asynchronous stream read operation started with g_input_stream_read_all_async().

since: 2.44

g_input_stream_read_async

Request an asynchronous read of count bytes from the stream into the buffer starting at buffer. When the operation is finished callback will be called. You can then call g_input_stream_read_finish() to get the result of the operation.

g_input_stream_read_bytes

Like g_input_stream_read(), this tries to read count bytes from the stream in a blocking fashion. However, rather than reading into a user-supplied buffer, this will create a new GBytes containing the data that was read. This may be easier to use from language bindings.

since: 2.34

g_input_stream_read_bytes_async

Request an asynchronous read of count bytes from the stream into a new GBytes. When the operation is finished callback will be called. You can then call g_input_stream_read_bytes_finish() to get the result of the operation.

since: 2.34

g_input_stream_read_bytes_finish

Finishes an asynchronous stream read-into-GBytes operation.

since: 2.34

g_input_stream_read_finish

Finishes an asynchronous stream read operation.

g_input_stream_set_pending

Sets stream to have actions pending. If the pending flag is already set or stream is closed, it will return FALSE and set error.

g_input_stream_skip

Tries to skip count bytes from the stream. Will block during the operation.

g_input_stream_skip_async

Request an asynchronous skip of count bytes from the stream. When the operation is finished callback will be called. You can then call g_input_stream_skip_finish() to get the result of the operation.

g_input_stream_skip_finish

Finishes a stream skip operation.

Methods inherited from GObject (43)

Please see GObject for a full list of methods.

Methods inherited from GSeekable (5)

g_seekable_can_seek

Tests if the stream supports the GSeekableIface.

g_seekable_can_truncate

Tests if the length of the stream can be adjusted with g_seekable_truncate().

g_seekable_seek

Seeks in the stream by the given offset, modified by type.

g_seekable_tell

Tells the current position within the stream.

g_seekable_truncate

Sets the length of the stream to offset. If the stream was previously larger than offset, the extra data is discarded. If the stream was previously shorter than offset, it is extended with NUL (‘\0’) bytes.

Signals

Signals inherited from GObject (1)

GObject::notify

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.

Class structure

struct GioFileInputStreamClass {
  GInputStreamClass parent_class;
  goffset (* tell) (
    GFileInputStream* stream
  );
  gboolean (* can_seek) (
    GFileInputStream* stream
  );
  gboolean (* seek) (
    GFileInputStream* stream,
    goffset offset,
    GSeekType type,
    GCancellable* cancellable,
    GError** error
  );
  GFileInfo* (* query_info) (
    GFileInputStream* stream,
    const char* attributes,
    GCancellable* cancellable,
    GError** error
  );
  void (* query_info_async) (
    GFileInputStream* stream,
    const char* attributes,
    int io_priority,
    GCancellable* cancellable,
    GAsyncReadyCallback callback,
    gpointer user_data
  );
  GFileInfo* (* query_info_finish) (
    GFileInputStream* stream,
    GAsyncResult* result,
    GError** error
  );
  void (* _g_reserved1) (
void
  );
  void (* _g_reserved2) (
void
  );
  void (* _g_reserved3) (
void
  );
  void (* _g_reserved4) (
void
  );
  void (* _g_reserved5) (
void
  );
  
}

No description available.

Class members

parent_class: GInputStreamClass: No description available.
tell: goffset (* tell) ( GFileInputStream* stream ): No description available.
can_seek: gboolean (* can_seek) ( GFileInputStream* stream ): No description available.
seek: gboolean (* seek) ( GFileInputStream* stream, goffset offset, GSeekType type, GCancellable* cancellable, GError** error ): No description available.
query_info: GFileInfo* (* query_info) ( GFileInputStream* stream, const char* attributes, GCancellable* cancellable, GError** error ): No description available.
query_info_async: void (* query_info_async) ( GFileInputStream* stream, const char* attributes, int io_priority, GCancellable* cancellable, GAsyncReadyCallback callback, gpointer user_data ): No description available.
query_info_finish: GFileInfo* (* query_info_finish) ( GFileInputStream* stream, GAsyncResult* result, GError** error ): No description available.
_g_reserved1: void (* _g_reserved1) ( void ): No description available.
_g_reserved2: void (* _g_reserved2) ( void ): No description available.
_g_reserved3: void (* _g_reserved3) ( void ): No description available.
_g_reserved4: void (* _g_reserved4) ( void ): No description available.
_g_reserved5: void (* _g_reserved5) ( void ): No description available.

Virtual methods

Gio.FileInputStreamClass.can_seek

No description available.

Gio.FileInputStreamClass.query_info

Queries a file input stream the given attributes. This function blocks while querying the stream. For the asynchronous (non-blocking) version of this function, see g_file_input_stream_query_info_async(). While the stream is blocked, the stream will set the pending flag internally, and any other operations on the stream will fail with G_IO_ERROR_PENDING.