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HP OpenVMS Systemsask the wizard |
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The Question is: Hi, I am porting unix code on OpenVMS V6.1. This is a client/server program. This program uses pthread_start (decthreads), and sockets. There are 2 threads in the proggram, which connects to the server and send/recv data. After sending/receiveing couple of data, the recv() function just hangs. Does not receive the data. But using UCX, I can see data in the read buffer. What could be the problem? Why is the recv() function unable to read? Additional Information: I also tried with a simple sample socket program with two threads (meaning two connection to the server). This program also hangs if I have printf() statements after each send and receive. If I remove the printf() statements, then it even works for upto 6 threads. What could be the reason? Thanks in advance, Prem The Answer is : You are working with very old and now unsupported product releases. Please port to a current version of TCP/IP Services and of OpenVMS. As of this writing, V5.3 and V7.3 are the current releases. Also please install the available ECO kits for TCP/IP and OpenVMS. Note that DECthreads simulates multithreaded parallel operations on all OpenVMS VAX releases. Parallel execution of applications based on DECthreads across multiple processors -- based on the availability of the OpenVMS kernel-threading interface -- is available on OpenVMS Alpha. Not OpenVMS VAX.
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