,----[ Shakthi Kannan <[EMAIL PROTECTED]> ] | 1/ The Hurd servers run many tasks. Tasks communicate to the ports | with messages, and hence a server can communicate with multiple | ports? `---- The GNU Hurd servers are tasks themselves. When a task serves a useful purpose like networking, file system or authentication, it is called a server. The GNU Hurd implements operating system services as a collection of servers (tasks). Concept of task comes from Mach. Task is simply a unit of resource allocation. Tasks do not have pid, gid, groups or sessions. Hurd's process server makes a task appear as a process.
A task (or server) can have one or more ports and can communicate with multiple ports. What exactly is your question? ,----[ Shakthi Kannan <[EMAIL PROTECTED]> ] | 2/ Multiple tasks can send messages through a port (message queues), | where the tasks have send rights for the port? `---- Yes, when they have a send right or send-once right to the port.. ,----[ Shakthi Kannan <[EMAIL PROTECTED]> ] | 3/ A single task alone has a receive right for a particular port? `---- Yes there can only be one receive right for a port and only one task can own it. How ever a receive right is transferable. ,----[ Shakthi Kannan <[EMAIL PROTECTED]> ] | 4/ Where do translators come in the above picture? `---- To know about translators, you should read from http://www.gnu.org/software/hurd/whatis/translator.html But I think your question comes from, why you need to settrans every server. It is because, the server has to register with the name server (file system server) for send-right lookup (file_name_lookup call). Even for a server that need not have to behave like a file or file system, it can still use libtrivfs for name server registration. ,----[ Shakthi Kannan <[EMAIL PROTECTED]> ] | 5/ If X server wants to talk with Y server, then it makes a request | to the filesystem server asking for a "send right" to the Y server | port? `---- Yes because under GNU/Hurd, filesystem server also acts as name server. -- Anand Babu Free as in Freedom <www.gnu.org> _______________________________________________ Bug-hurd mailing list Bug-hurd@gnu.org http://lists.gnu.org/mailman/listinfo/bug-hurd
