Provided by: libmongoc-doc_2.2.1-1_all 

SYNOPSIS
ssize_t
mongoc_socket_sendv (mongoc_socket_t *sock,
mongoc_iovec_t *iov,
size_t iovcnt,
int64_t expire_at);
PARAMETERS
• sock: A mongoc_socket_t <>.
• iov: A mongoc_iovec_t.
• iovcnt: A size_t containing the number of elements in iov.
• expire_at: A int64_t with absolute timeout in monotonic time. The monotonic clock is in microseconds
and can be fetched using System Clock <https://www.mongoc.org/libbson/current/bson_get_monotonic_time
.html>.
DESCRIPTION
Sends a vector of buffers to the destination. This uses sendmsg() when available to perform a gathered
write. If IOV_MAX is reached, a fallback will be used.
RETURNS
the number of bytes sent on success, or -1 on failure and errno is set.
Author
MongoDB, Inc
Copyright
2009-present, MongoDB, Inc.
2.2.1 Dec 11, 2025 MONGOC_SOCKET_SENDV(3)