mongoc_stream_write()
Synopsis
ssize_t
mongoc_stream_write (mongoc_stream_t *stream,
                    void            *buf,
                    size_t           count,
                    int32_t          timeout_msec);Parameters
| stream | |
| buf | The buffer to write. | 
| count | The number of bytes to write. | 
| timeout_msec | The number of milliseconds to wait before failure, a timeout of 0 will not block. If negative, use the default timeout. | 
The mongoc_stream_write() function shall perform a write to a mongoc_stream_t. It's modeled on the API and semantics of write(), though the parameters map only loosely.
Returns
The mongoc_stream_write function returns the number of bytes write on success. It returns >= 0 and < min_bytes when end-of-file is encountered and -1 on failure. errno is set upon failure.