Merge "Add a method to get the binderfs transactions for a given process" into main

    return ret;

}

status_t getBinderTransactions(pid_t pid, std::string& transactionsOutput) {

    std::ifstream ifs("/dev/binderfs/binder_logs/transactions");

    if (!ifs.is_open()) {

        ifs.open("/d/binder/transactions");

        if (!ifs.is_open()) {

            LOG(ERROR) << "Could not open /dev/binderfs/binder_logs/transactions. "

                       << "Likely a permissions issue. errno: " << errno;

            return -errno;

        }

    }

    std::string line;

    while (getline(ifs, line)) {

        // The section for this pid ends with another "proc <pid>" for another

        // process. There is only one entry per pid so we can stop looking after

        // we've grabbed the whole section

        if (base::StartsWith(line, "proc " + std::to_string(pid))) {

            do {

                transactionsOutput += line + '\n';

            } while (getline(ifs, line) && !base::StartsWith(line, "proc "));

            return OK;

        }

    }

    return NAME_NOT_FOUND;

}

} // namespace  android

status_t getBinderClientPids(BinderDebugContext context, pid_t pid, pid_t servicePid,

                             int32_t handle, std::vector<pid_t>* pids);

/**

 * Get the transactions for a given process from /dev/binderfs/binder_logs/transactions

 * Return: OK if the file was found and the pid was found in the file.

 *         -errno if there was an issue opening the file

 *         NAME_NOT_FOUND if the pid wasn't found in the file

 */

status_t getBinderTransactions(pid_t pid, std::string& transactionOutput);

} // namespace  android