Function write_callback

harmony/api9/acl_one/entry/src/main/cpp/logger.cpp:93–96

static write_fn s_write_callback;

static void write_callback(void*, const char* str)
{
    log_info("%s", str);
}

static void log_callback(void* ctx, const char* fmt, va_list ap) {
    static acl::string* buf = nullptr;