MONGOC_FIND_A...ET_MAX_TIME_MS(3)

💅 mongoc_find_and_modify_opts_set_max_time_ms 💅

okay so bestie, this is the libmongoc manual page for setting a maxTimeMS on your findAndModify options. it’s giving “please don’t let this server-side operation run forever” energy, and honestly? iconic. ✨

✨ 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. that’s your builder bestie 💖
• max_time_ms — the maximum server-side execution time permitted, in milliseconds, or 0 to specify no maximum time (the default setting). so 0 is lowkey “no cap, take forever if you want” 🙈

💜 DESCRIPTION 💜

Adds a maxTimeMS argument to the builder. literally that’s the whole vibe. 🦋

🌸 RETURNS 🌸

Returns true if it successfully added the option to the builder, otherwise false and logs an error. no silent failures here, bestie 😭

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.

---

mwah 💋 this page is from libmongoc version 2.5.6, dated Oct 09, 2026. bye bestie, go set those timeouts 🫶✨