openbmc/build/tmp/deploy/sdk/witherspoon-2019-08-08/sysroots/armv6-openbmc-linux-gnueabi/usr/src/debug/glib-2.0/1_2.60.3-r0/glib-2.60.3/gio/goutputstream.c
gboolean g_output_stream_writev(GOutputStream* stream,
                                const GOutputVector* vectors, gsize n_vectors,
                                gsize* bytes_written, GCancellable* cancellable,
                                GError** error)
{
    GOutputStreamClass* class;
    gboolean res;
    gsize _bytes_written = 0;

    if (bytes_written)
        *bytes_written = 0;

    g_return_val_if_fail(G_IS_OUTPUT_STREAM(stream), FALSE);
    g_return_val_if_fail(vectors != NULL || n_vectors == 0, FALSE);
    g_return_val_if_fail(cancellable == NULL || G_IS_CANCELLABLE(cancellable),
                         FALSE);
    g_return_val_if_fail(error == NULL || *error == NULL, FALSE);

    if (n_vectors == 0)
        return TRUE;

    class = G_OUTPUT_STREAM_GET_CLASS(stream);

    g_return_val_if_fail(class->writev_fn != NULL, FALSE);

    if (!g_output_stream_set_pending(stream, error))
        return FALSE;

    if (cancellable)
        g_cancellable_push_current(cancellable);

    res = class->writev_fn(stream, vectors, n_vectors, &_bytes_written,
                           cancellable, error);

    g_warn_if_fail(res || _bytes_written == 0);
    g_warn_if_fail(res || (error == NULL || *error != NULL));

    if (cancellable)
        g_cancellable_pop_current(cancellable);

    g_output_stream_clear_pending(stream);

    if (bytes_written)
        *bytes_written = _bytes_written;

    return res;
}
/**
 * g_output_stream_writev:
 * @stream: a #GOutputStream.
 * @vectors: (array length=n_vectors): the buffer containing the #GOutputVectors
 * to write.
 * @n_vectors: the number of vectors to write
 * @bytes_written: (out) (optional): location to store the number of bytes that
 * were written to the stream
 * @cancellable: (nullable): optional cancellable object
 * @error: location to store the error occurring, or %NULL to ignore
 *
 * Tries to write the bytes contained in the @n_vectors @vectors into the
 * stream. Will block during the operation.
 *
 * If @n_vectors is 0 or the sum of all bytes in @vectors is 0, returns 0 and
 * does nothing.
 *
 * On success, the number of bytes written to the stream is returned.
 * It is not an error if this is not the same as the requested size, as it
 * can happen e.g. on a partial I/O error, or if there is not enough
 * storage in the stream. All writes block until at least one byte
 * is written or an error occurs; 0 is never returned (unless
 * @n_vectors is 0 or the sum of all bytes in @vectors is 0).
 *
 * If @cancellable is not %NULL, then the operation 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 an
 * operation was partially finished when the operation was cancelled the
 * partial result will be returned, without an error.
 *
 * Some implementations of g_output_stream_writev() may have limitations on the
 * aggregate buffer size, and will return %G_IO_ERROR_INVALID_ARGUMENT if these
 * are exceeded. For example, when writing to a local file on UNIX platforms,
 * the aggregate buffer size must not exceed %G_MAXSSIZE bytes.
 *
 * Virtual: writev_fn
 *
 * Returns: %TRUE on success, %FALSE if there was an error
 *
 * Since: 2.60
 */


Tries to write the bytes contained in the @n_vectors @vectors into the
stream. Will block during the operation.

If @n_vectors is 0 or the sum of all bytes in @vectors is 0, returns 0 and
does nothing.

On success, the number of bytes written to the stream is returned.
It is not an error if this is not the same as the requested size, as it
can happen e.g. on a partial I/O error, or if there is not enough
storage in the stream. All writes block until at least one byte
is written or an error occurs; 0 is never returned (unless
@n_vectors is 0 or the sum of all bytes in @vectors is 0).

If @cancellable is not %NULL, then the operation 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 an
operation was partially finished when the operation was cancelled the
partial result will be returned, without an error.

Some implementations of g_output_stream_writev() may have limitations on the
aggregate buffer size, and will return %G_IO_ERROR_INVALID_ARGUMENT if these
are exceeded. For example, when writing to a local file on UNIX platforms,
the aggregate buffer size must not exceed %G_MAXSSIZE bytes.



%TRUE on success, %FALSE if there was an error


Tries to write the bytes contained in the @n_vectors @vectors into the stream . Will block during the operation . If @n_vectors is 0 or the sum of all bytes in @vectors is 0 returns 0 and does nothing . On success the number of bytes written to the stream is returned . It is not an error if this is not the same as the requested size as it can happen e . g . on a partial I / O error or if there is not enough storage in the stream . All writes block until at least one byte is written or an error occurs ; 0 is never returned ( unless @n_vectors is 0 or the sum of all bytes in @vectors is 0 ) . If @cancellable is not %NULL then the operation 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 an operation was partially finished when the operation was cancelled the partial result will be returned without an error . Some implementations of g_output_stream_writev () may have limitations on the aggregate buffer size and will return %G_IO_ERROR_INVALID_ARGUMENT if these are exceeded . For example when writing to a local file on UNIX platforms the aggregate buffer size must not exceed %G_MAXSSIZE bytes . %TRUE on success %FALSE if there was an error
gboolean g_output_stream_writev(GOutputStream* stream,
                                const GOutputVector* vectors, gsize n_vectors,
                                gsize* bytes_written, GCancellable* cancellable,
                                GError** error)
{
    GOutputStreamClass* class;
    gboolean res;
    gsize _bytes_written = 0;
    if (bytes_written)
        *bytes_written = 0;
    g_return_val_if_fail(G_IS_OUTPUT_STREAM(stream), FALSE);
    g_return_val_if_fail(vectors != NULL || n_vectors == 0, FALSE);
    g_return_val_if_fail(cancellable == NULL || G_IS_CANCELLABLE(cancellable),
                         FALSE);
    g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
    if (n_vectors == 0)
        return TRUE;
    class = G_OUTPUT_STREAM_GET_CLASS(stream);
    g_return_val_if_fail(class->writev_fn != NULL, FALSE);
    if (!g_output_stream_set_pending(stream, error))
        return FALSE;
    if (cancellable)
        g_cancellable_push_current(cancellable);
    res = class->writev_fn(stream, vectors, n_vectors, &_bytes_written,
                           cancellable, error);
    g_warn_if_fail(res || _bytes_written == 0);
    g_warn_if_fail(res || (error == NULL || *error != NULL));
    if (cancellable)
        g_cancellable_pop_current(cancellable);
    g_output_stream_clear_pending(stream);
    if (bytes_written)
        *bytes_written = _bytes_written;
    return res;
}
gboolean g_output_stream_writev ( GOutputStream * stream , const GOutputVector * vectors , gsize n_vectors , gsize * bytes_written , GCancellable * cancellable , GError * * error ) { GOutputStreamClass * class ; gboolean res ; gsize _bytes_written = 0 ; if ( bytes_written ) * bytes_written = 0 ; g_return_val_if_fail ( G_IS_OUTPUT_STREAM ( stream ) , FALSE ) ; g_return_val_if_fail ( vectors != NULL || n_vectors == 0 , FALSE ) ; g_return_val_if_fail ( cancellable == NULL || G_IS_CANCELLABLE ( cancellable ) , FALSE ) ; g_return_val_if_fail ( error == NULL || * error == NULL , FALSE ) ; if ( n_vectors == 0 ) return TRUE ; class = G_OUTPUT_STREAM_GET_CLASS ( stream ) ; g_return_val_if_fail ( class -> writev_fn != NULL , FALSE ) ; if ( ! g_output_stream_set_pending ( stream , error ) ) return FALSE ; if ( cancellable ) g_cancellable_push_current ( cancellable ) ; res = class -> writev_fn ( stream , vectors , n_vectors , & _bytes_written , cancellable , error ) ; g_warn_if_fail ( res || _bytes_written == 0 ) ; g_warn_if_fail ( res || ( error == NULL || * error != NULL ) ) ; if ( cancellable ) g_cancellable_pop_current ( cancellable ) ; g_output_stream_clear_pending ( stream ) ; if ( bytes_written ) * bytes_written = _bytes_written ; return res ; }
g_output_stream_writev:
 @stream: a #GOutputStream.
g_output_stream_writev : @stream : a #GOutputStream .