Method

GioOutputStreamwritev_all

since: 2.60

Declaration 

gboolean
g_output_stream_writev_all (
  GOutputStream* stream,
  GOutputVector* vectors,
  gsize n_vectors,
  gsize* bytes_written,
  GCancellable* cancellable,
  GError** error
)

Description

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

This function is similar to g_output_stream_writev(), except it tries to write as many bytes as requested, only stopping on an error.

On a successful write of all n_vectors vectors, TRUE is returned, and bytes_written is set to the sum of all the sizes of vectors.

If there is an error during the operation FALSE is returned and error is set to indicate the error status.

As a special exception to the normal conventions for functions that use GError, if this function returns FALSE (and sets error) then bytes_written will be set to the number of bytes that were successfully written before the error was encountered. This functionality is only available from C. If you need it from another language then you must write your own loop around g_output_stream_write().

The content of the individual elements of vectors might be changed by this function.

Available since: 2.60

Parameters

vectors

Type: An array of GOutputVector

The buffer containing the GOutputVectors to write.

The length of the array is specified in the n_vectors argument.
The data is owned by the caller of the function.
n_vectors

Type: gsize

The number of vectors to write.

bytes_written

Type: gsize*

Location to store the number of bytes that were written to the stream.

The argument will be set by the function.
The argument can be NULL.
cancellable

Type: GCancellable

Optional GCancellable object, NULL to ignore.

The argument can be NULL.
The data is owned by the caller of the function.
error

Type: GError **

The return location for a recoverable error.

The argument can be NULL.
If the return location is not NULL, then you must initialize it to a NULL GError*.
The argument will left initialized to NULL by the method if there are no errors.
In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.

Return value

Type: gboolean

TRUE on success, FALSE if there was an error.