Will pthread conflict with Performer??

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Ren-Jye Yu (renjye++at++python.tamu.edu)
Wed, 30 Jul 1997 14:14:38 -0500

Hello,

        I am using pthread to create a TCP/IP connection in my Performer code.
After running the program for a while, it will core dump deep in pfFrame().

> Core from signal SIGSEGV: Segmentation violation
> (dbx) where
> > 0 venice_wait_rdata(0xb, 0x4080000, 0x28, 0x1) ["../VENICE/ven_get.c":195,
> 0xdaf15c8]
> 1 venice_flush_pgs(0xb, 0x4080000, 0x28, 0x1)
["../VENICE/ven_modes.c":115,
> 0xdaea534]
> 2 __glvenim_Finish(0xb, 0x4080000, 0x28, 0x1)
["../VENICE/ven_modes.c":121,
> 0xdaea594]
> 3 appCullDraw(int)(0x5d96, 0x4080000, 0x28, 0x1)
> ["../../../lib/libpf/pfProcess.C":2436, 0x5e690ad0]
> 4 pfFrame(0xb, 0x4080000, 0x28, 0x1)
["../../../lib/libpf/pfProcess.C":2727,
> 0x5e691640]
> 5 main(argc = 3, argv = 0x7fff2e14) ["/usr/people/sim/sim/main.c":332,
> 0x41354c]
> 6 __istart() ["crt1tinit.s":13, 0x412860]
> (dbx)

 Does anyone have any experience using pthread with Performer? Can I use
pthread with Performer? If you can use pthread, are there settings to insure
Performer does not affect the pthread are vice versa. If we can't use pthread,
is there another way to spawn child processes such as a TCPIP module using
shared memory. We are using threads because are refresh rate is our primary
concern. We do not want to slow the Performer process by adding a TCPIP module
into the loop.

Thanks for you help.

renjye

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