If it's TCBs in the same address space, you don't have to go through any official mechanism to transfer a socket. Simply having a subtask pick the socket value up out of storage somewhere is fine.
David Logan Manager of Product Development, Pitney Bowes Business Insight http://centrus.com W: (720) 564-3056 C: (303) 818-8222 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Patrick O'Keefe Sent: Monday, December 01, 2008 14:17 To: [email protected] Subject: Re: TCP/IP On Sun, 30 Nov 2008 22:45:37 -0600, Paul Gilmartin <[EMAIL PROTECTED]> wrote: >On Sun, 30 Nov 2008 19:34:41 -0600, John McKown wrote: >> >>Quite often, in the UNIX world, what is done is that the main process >>(task) will do all of this. It will then fork() or spawn() another process >>and give ownership of the socket created above to that process. >>... >> >Isn't the statement "give ownership of the socket" superfluous? I >think a socket is just a variety of descriptor which fork() >automatically replicated in the child process space. What may be >important is that the parent close() its instance of that descriptor >in order that the client can detect the close() by the child. >... I know nothing about this vis-a-vis fork() and spawn(), but givesocket() / takesocket() are (I assume) standard socket calls that pass ownership of a connection. In z/OS that passing can be between address spaces. Websphere passes connections from Server to Servant (or whatever they are called) address spaces. I assume it can be done between TCBs in the same address space. I certainly could be wrong, but I think the connection stays active during this process. Pat O'Keefe ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
