MONGOC_FIND_AND_MODIFY_OPTS_SET_MAX_TIME_MS(3)

SYNOPSIS

    bool
    mongoc_find_and_modify_opts_set_max_time_ms (
       mongoc_find_and_modify_opts_t *opts, uint32_t max_time_ms);

PARAMETERS

•   opts: A mongoc_find_and_modify_opts_t.

•   max_time_ms: The maximum server-side execution time permitted, in milliseconds, or 0 to specify no maximum time (the default setting).

DESCRIPTION

Adds a maxTimeMS argument to the builder.

RETURNS

Returns true if it successfully added the option to the builder, otherwise false and logs an error.

Note: although max_time_ms is a uint32_t, it is possible to set it as a uint64_t through the options arguments in some cursor returning functions like mongoc_collection_find_with_opts().

SETTING MAXTIMEMS

opts.c

    void
    fam_opts(mongoc_collection_t *collection)
    {
       mongoc_find_and_modify_opts_t *opts;
       bson_t reply;
       bson_t *update;
       bson_error_t error;
       bson_t query = BSON_INITIALIZER;
       mongoc_write_concern_t *wc;
       bson_t extra = BSON_INITIALIZER;
       bool success;
       /* Find Zlatan Ibrahimovic, the striker */
       BSON_APPEND_UTF8(&query, "firstname", "Zlatan");
       BSON_APPEND_UTF8(&query, "lastname", "Ibrahimovic");
       BSON_APPEND_UTF8(&query, "profession", "Football player");
       /* Bump his age */
       update = BCON_NEW("$inc", "{", "age", BCON_INT32(1), "}");
       opts = mongoc_find_and_modify_opts_new();
       mongoc_find_and_modify_opts_set_update(opts, update);
       /* Abort if the operation takes too long. */
       mongoc_find_and_modify_opts_set_max_time_ms(opts, 100);
       /* Set write concern w: 2 */
       wc = mongoc_write_concern_new();
       mongoc_write_concern_set_w(wc, 2);
       mongoc_write_concern_append(wc, &extra);
       /* Some future findAndModify option the driver doesn't support conveniently
        */
       BSON_APPEND_INT32(&extra, "futureOption", 42);
       mongoc_find_and_modify_opts_append(opts, &extra);
       success = mongoc_collection_find_and_modify_with_opts(collection, &query, opts, &reply, &error);
       if (success) {
          char *str;
          str = bson_as_canonical_extended_json(&reply, NULL);
          printf("%s\n", str);
          bson_free(str);
       } else {
          fprintf(stderr, "Got error: \"%s\" on line %d\n", error.message, (int)(__LINE__));
       }
       bson_destroy(&reply);
       bson_destroy(&extra);
       bson_destroy(update);
       bson_destroy(&query);
       mongoc_write_concern_destroy(wc);
       mongoc_find_and_modify_opts_destroy(opts);
    }

AUTHOR
MongoDB, Inc

COPYRIGHT
2009-present, MongoDB, Inc.