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Status Not under consideration
Workspace z/TPF Product Family
Categories z/TPF
Created by Guest
Created on Nov 14, 2017

RELATED IDEAS

Allow for sub-second SSL_write when using Shared CTX

Since Shared CTX SSL_write() is always blocking from an application perspective, we must rely on the socket send timeout (SO_SNDTIMEO) to get control back should an event occur such as insufficient send buffer space. SO_SNDTIMEO is only granular to the second. This is much to long to wait for time-critical applications.

Idea priority High
  • Guest
    Reply
    |     Dec 12, 2017

    IBM does not intend to implement this in the foreseeable future.
    Implementing subsecond send/recv timeouts in SSL is a fairly large effort due to the underlying second based timeouts in the TCP/IP layer. With the true non-blocking SSL_write's (developerWorks RFE ID 113047), subsecond timeouts on SSL_write can be accomplished in the application as they would now properly get control back with a WANT_WRITE return code if the socket was blocked.

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