C++ DomainList类代码示例

void CommandData::execute(const StringVector &args)
{
    MasterIndexList masterIndices;
    DomainList domains;
    DomainList::const_iterator di;

    if (args.size()) {
        stringstream err;
        err << "'" << getName() << "' takes no arguments!";
        throwInvalidUsageException(err);
    }

    masterIndices = getMasterIndices();
    MasterIndexList::const_iterator mi;
    for (mi = masterIndices.begin();
            mi != masterIndices.end(); mi++) {
        ec_ioctl_master_t io;
        MasterDevice m(*mi);
        m.open(MasterDevice::Read);
        m.getMaster(&io);

        domains = selectedDomains(m, io);

        for (di = domains.begin(); di != domains.end(); di++) {
            outputDomainData(m, *di);
        }
    }
}

static int
dump_domains(int argc, char** argv)
{
	DomainList::Iterator iterator = sDomains.GetIterator();
	while (net_domain_private* domain = iterator.Next()) {
		kprintf("domain: %p, %s, %d\n", domain, domain->name, domain->family);
		kprintf("  module:         %p\n", domain->module);
		kprintf("  address_module: %p\n", domain->address_module);

		if (!domain->routes.IsEmpty())
			kprintf("  routes:\n");
	
		RouteList::Iterator routeIterator = domain->routes.GetIterator();
		while (net_route_private* route = routeIterator.Next()) {
			kprintf("    %p: dest %s, mask %s, gw %s, flags %" B_PRIx32 ", "
				"address %p\n", route, AddressString(domain, route->destination
					? route->destination : NULL).Data(),
				AddressString(domain, route->mask ? route->mask : NULL).Data(),
				AddressString(domain, route->gateway
					? route->gateway : NULL).Data(),
				route->flags, route->interface_address);
		}

		if (!domain->route_infos.IsEmpty())
			kprintf("  route infos:\n");
	
		RouteInfoList::Iterator infoIterator = domain->route_infos.GetIterator();
		while (net_route_info* info = infoIterator.Next()) {
			kprintf("    %p\n", info);
		}
	}

	return 0;
}

Command::DomainList Command::selectedDomains(MasterDevice &m,
        const ec_ioctl_master_t &io)
{
    DomainList list;

    PositionParser pp(io.domain_count);
    NumberListParser::List domList = pp.parse(domains.c_str());
    NumberListParser::List::const_iterator di;

    for (di = domList.begin(); di != domList.end(); di++) {
        if (*di < io.domain_count) {
            ec_ioctl_domain_t d;
            m.getDomain(&d, *di);
            list.push_back(d);
        }
    }

    return list;
}

/*!	Scans the domain list for the specified family.
	You need to hold the sDomainLock when calling this function.
*/
static net_domain_private*
lookup_domain(int family)
{
	DomainList::Iterator iterator = sDomains.GetIterator();
	while (net_domain_private* domain = iterator.Next()) {
		if (domain->family == family)
			return domain;
	}

	return NULL;
}

void
domain_removed_device_interface(net_device_interface* deviceInterface)
{
	MutexLocker locker(sDomainLock);

	DomainList::Iterator iterator = sDomains.GetIterator();
	while (net_domain_private* domain = iterator.Next()) {
		RecursiveLocker locker(domain->lock);

		net_interface_private* interface = find_interface(domain,
			deviceInterface->device->name);
		if (interface == NULL)
			continue;

		remove_interface_from_domain(interface);
	}
}

static int
dump_domains(int argc, char** argv)
{
	DomainList::Iterator iterator = sDomains.GetIterator();
	while (net_domain_private* domain = iterator.Next()) {
		kprintf("domain: %p, %s, %d\n", domain, domain->name, domain->family);
		kprintf("  module:         %p\n", domain->module);
		kprintf("  address_module: %p\n", domain->address_module);
		
		if (!list_is_empty(&domain->interfaces))
			kprintf("  interfaces:\n");

		net_interface* interface = NULL;
		while (true) {
			interface = (net_interface*)list_get_next_item(&domain->interfaces,
				interface);
			if (interface == NULL)
				break;

			kprintf("    %p\n", interface);
		}

		if (!domain->routes.IsEmpty())
			kprintf("  routes:\n");
	
		RouteList::Iterator routeIterator = domain->routes.GetIterator();
		while (net_route* route = routeIterator.Next()) {
			kprintf("    %p\n", route);
		}

		if (!domain->route_infos.IsEmpty())
			kprintf("  route infos:\n");
	
		RouteInfoList::Iterator infoIterator = domain->route_infos.GetIterator();
		while (net_route_info* info = infoIterator.Next()) {
			kprintf("    %p\n", info);
		}
	}

	return 0;
}

uint32
count_domain_interfaces()
{
	MutexLocker locker(sDomainLock);

	uint32 count = 0;

	DomainList::Iterator iterator = sDomains.GetIterator();
	while (net_domain_private* domain = iterator.Next()) {
		net_interface* interface = NULL;
		while (true) {
			interface = (net_interface*)list_get_next_item(&domain->interfaces,
				interface);
			if (interface == NULL)
				break;

			count++;
		}
	}

	return count;
}

/*!	Dumps a list of all interfaces into the supplied userland buffer.
	If the interfaces don't fit into the buffer, an error (\c ENOBUFS) is
	returned.
*/
status_t
list_domain_interfaces(void* _buffer, size_t* bufferSize)
{
	MutexLocker locker(sDomainLock);

	UserBuffer buffer(_buffer, *bufferSize);

	DomainList::Iterator iterator = sDomains.GetIterator();
	while (net_domain_private* domain = iterator.Next()) {
		RecursiveLocker locker(domain->lock);

		net_interface* interface = NULL;
		while (true) {
			interface = (net_interface*)list_get_next_item(&domain->interfaces,
				interface);
			if (interface == NULL)
				break;

			ifreq request;
			strlcpy(request.ifr_name, interface->name, IF_NAMESIZE);
			if (interface->address != NULL) {
				memcpy(&request.ifr_addr, interface->address,
					interface->address->sa_len);
			} else {
				// empty address
				request.ifr_addr.sa_len = 2;
				request.ifr_addr.sa_family = AF_UNSPEC;
			}

			if (buffer.Copy(&request, IF_NAMESIZE
					+ request.ifr_addr.sa_len) == NULL)
				return buffer.Status();
		}
	}

	*bufferSize = buffer.ConsumedAmount();
	return B_OK;
}

status_t
register_domain(int family, const char* name,
	struct net_protocol_module_info* module,
	struct net_address_module_info* addressModule,
	net_domain** _domain)
{
	TRACE(("register_domain(%d, %s)\n", family, name));
	MutexLocker locker(sDomainLock);

	struct net_domain_private* domain = lookup_domain(family);
	if (domain != NULL)
		return B_NAME_IN_USE;

	domain = new(std::nothrow) net_domain_private;
	if (domain == NULL)
		return B_NO_MEMORY;

	recursive_lock_init(&domain->lock, name);

	domain->family = family;
	domain->name = name;
	domain->module = module;
	domain->address_module = addressModule;

	sDomains.Add(domain);

	*_domain = domain;
	return B_OK;
}

status_t
unregister_domain(net_domain* _domain)
{
	TRACE(("unregister_domain(%p, %d, %s)\n", _domain, _domain->family,
		_domain->name));

	net_domain_private* domain = (net_domain_private*)_domain;
	MutexLocker locker(sDomainLock);

	sDomains.Remove(domain);

	net_interface_private* interface = NULL;
	while (true) {
		interface = (net_interface_private*)list_remove_head_item(
			&domain->interfaces);
		if (interface == NULL)
			break;

		delete_interface(interface);
	}

	recursive_lock_destroy(&domain->lock);
	delete domain;
	return B_OK;
}