Provided by: libmongoc-doc_1.3.1-1_all 

NAME
mongoc_collection_set_read_prefs() - Sets the default read preferences to use for operations on
collection not specifying a read preference.
SYNOPSIS
void
mongoc_collection_set_read_prefs (mongoc_collection_t *collection,
const mongoc_read_prefs_t *read_prefs);
PARAMETERS
collection
A mongoc_collection_t \&.
read_prefs
A mongoc_read_prefs_t \&.
DESCRIPTION
Sets the default read preferences to use for operations on collection not specifying a read preference.
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 \&.
COLOPHON
This page is part of MongoDB C Driver. Please report any bugs at
https://jira.mongodb.org/browse/CDRIVER.
MongoDB C Driver 2016‐01‐18 MONGOC_COLLECTION_SET_READ_PREFS(3)