Provided by: libmongoc-doc_1.9.2+dfsg-1build1_all 

NAME
mongoc_database_set_read_prefs - mongoc_database_set_read_prefs()
SYNOPSIS
void
mongoc_database_set_read_prefs (mongoc_database_t *database,
const mongoc_read_prefs_t *read_prefs);
This function sets the default read preferences to use on operations performed with database. Collections
created with mongoc_database_get_collection() after this call will inherit these read preferences.
The global default is MONGOC_READ_PRIMARY: if the client is connected to a replica set it reads from the
primary, otherwise it reads from the current MongoDB server.
Please see the MongoDB website for a description of Read Preferences.
PARAMETERS
• database: A mongoc_database_t.
• read_prefs: A mongoc_read_prefs_t.
AUTHOR
MongoDB, Inc
COPYRIGHT
2018, MongoDB, Inc
1.9.3-dev Feb 05, 2018 MONGOC_DATABASE_SET_READ_PREFS(3)