SERVICE_MAGIC
service->s_magic = SERVICE_MAGIC;
assert(service->s_magic == SERVICE_MAGIC);
assert(service->s_magic == SERVICE_MAGIC);
assert(service->s_magic == SERVICE_MAGIC);
assert(service->s_magic == SERVICE_MAGIC);
assert(service->s_magic == SERVICE_MAGIC);
assert(service->s_magic == SERVICE_MAGIC);
assert(service->s_magic == SERVICE_MAGIC);