mongoc_stream_readv -

SYNOPSIS  PARAMETERS  RETURNS  AUTHOR  COPYRIGHT 

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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.

WARNING:

The "default timeout" indicated by a negative value is both unspecified and unrelated to the documented default values for *TimeoutMS URI options. To specify a default timeout value for a *TimeoutMS URI option, use the MONGOC_DEFAULT_* constants defined in mongoc−client.h.

RETURNS

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

SEE ALSO:

mongoc_stream_read()

mongoc_stream_write()

mongoc_stream_writev()

AUTHOR

MongoDB, Inc

COPYRIGHT

2017-present, MongoDB, Inc

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