NAME Linux::NBD::Client - client (device) side of a network block device SYNOPSIS use Linux::NBD::Client; DESCRIPTION WARNING: I talked to the author of the nbd driver because nbd is so extremely racy (right now, stopping it often causes oopses, a server crashing also often oopses etc..). It turned out that he doesn't care at all and nbd is basically unmaintained, so YMMV when using this module, especially when writing servers. He really should have said that on his nbd pages ;[. OTOH, it works relatively reliable when you don't stop the servers, so watch out and keep your fingers crossed. METHODS $client = new Linux::NBD::Client [socket => $fh][, device => "/dev/nbdX"], ... Create a new client. Unless "device" is given, an unused device node is looked up using the "device" method (this might result in an exception!). $client->socket ([$tcp_socket]) Returns the current socket after setting a new one (if an argument is supplied). The socket *MUST* be a tcp socket. Believe me, bad things will happen if not. The special argument "undef" will try to clear the socket, if any was set. $client->device ([$new_device]) Returns the current device node (e.g. "/dev/nbd2") after setting a new one if an argument is supplied. If the argument is "undef" it will search for an unallocated nbd-device and use it. $client->disconnect Tries to exit the server by sending a special disconnect message. $client->clear_queue Clears the request queue, if possible. Should be used before setting a new socket. $client->set_timeout ($timeout) Set the request timeout, in seconds. $client->set_blocksize ($blksize) Set the device block size in bytes, i.e. how big each block is (must be >512, set_blocks ($nblocks) Set the device size in block units. $client->set_size ($bytes) Set the device size in octet units, will be rounded down to be a multiple of the block size. $client->run Closes all file descriptors except the server socket and enters the service loop (waits for read/write requests on the device and forwards them over the given socket). Only returns when somebody calls "disconnect" or the server is killed. $pid = $client->run_async Runs the service loop asynchronously and returns the pid of the newly created service process. $client->kill_async Kills any running async service. Please note that this also kills the socket, so you need to re-set the socket after this call. AUTHOR Marc Lehmann http://home.schmorp.de/ POD ERRORS Hey! The above document had some coding errors, which are explained below: Around line 258: =cut found outside a pod block. Skipping to next block.