Function SysCreateService

Kernel/src/arch/x86_64/syscalls.cpp:2227–2248

//////////////////////// \brief SysCreateService (name) - Create a service Create a new service. Services are essentially named containers for interfaces, allowing one program to implement multiple interfaces under a service. \param name (const char*) Service name to be used, must be unique \return Handle ID on success, error code on failure ////////////////////////

/// \return Handle ID on success, error code on failure
/////////////////////////////
long SysCreateService(regs64_t* r){
	process_t* currentProcess = Scheduler::GetCurrentProcess();

	size_t nameLength;
	if(strlenSafe(reinterpret_cast<const char*>(SC_ARG0(r)), nameLength, currentProcess->addressSpace)){
		return -EFAULT;
	}

	char name[nameLength + 1];
	strncpy(name, reinterpret_cast<const char*>(SC_ARG0(r)), nameLength);
	name[nameLength] = 0;
	for(auto& svc : ServiceFS::Instance()->services){
		if(strncmp(svc->GetName(), name, nameLength) == 0){
			return -EEXIST;
		}
	}

	FancyRefPtr<Service> svc = ServiceFS::Instance()->CreateService(name);
	Handle& handle = Scheduler::RegisterHandle(currentProcess, static_pointer_cast<KernelObject, Service>(svc));

	return handle.id;
}

/////////////////////////////
/// \brief SysCreateInterface (service, name, msgSize) - Create a new interface