mongoc_stream_readv()

Synopsis

ssize_t
mongoc_stream_readv (mongoc_stream_t *stream,
                     mongoc_iovec_t  *iov,
                     size_t           iovcnt,
                     size_t           min_bytes,
                     int32_t          timeout_msec);

Parameters

stream

A mongoc_stream_t.

iov

A vector of mongoc_iovec_t.

iovcnt

The number of items in iov.

min_bytes

The minimum number of bytes to read or failure will be indicated.

timeout_msec

A timeout in milliseconds, or 0 to indicate non-blocking. A negative value with use the default timeout.

This function is identical to mongoc_stream_read() except that it takes a mongoc_iovec_t to perform gathered I/O.

Returns

>= 0 on success, -1 on failure and errno is set.