mongoc_socket_send()
Synopsis
ssize_t
mongoc_socket_send (mongoc_socket_t *sock,
                    const void      *buf,
                    size_t           buflen,
                    int64_t          expire_at);Parameters
| sock | |
| buf | A buffer to send. | 
| buflen | A size_t with the number of bytes in buf. | 
| expire_at | A int64_t with an absolute timeout for the operation or 0. The timeout is in monotonic time using microseconds. You can retrieve the current monotonic time with bson_get_monotonic_time(). | 
Description
Sends buflen bytes in buf to the destination. If a timeout expired, the number of bytes sent will be returned or -1 if no bytes were sent.
Returns
-1 on failure and errno is set, or the number of bytes sent.