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Top Forums UNIX for Dummies Questions & Answers starting processes with timeout? Post 302072791 by Perderabo on Sunday 7th of May 2006 11:58:44 AM
Old 05-07-2006
This is an odd thing to do. But I just got this script to work:
Code:
#! /usr/bin/ksh

sleep 200 ; kill -term -$$ &
sleep 7
kill -term -$$

One of my sleep processes represents a process that might run too long. The other sleep process is the timer. Either process could play either role, but I envisioned that first line as the timer and the second as the process to be timed. One of the processes will probably finish first and then run the "kill -term -$$". This will kill the process group. On a multiprocessor system simultaneous kills may occur, but the kernel will ensure that they happen serially. There is no race condition here. This depends on the shell putting all processes in a script into a single process group. So neither sleep process could be replaced with another shell script because it would become a new process group.
 

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SSL_CTX_set_timeout(3)						      OpenSSL						    SSL_CTX_set_timeout(3)

NAME
SSL_CTX_set_timeout, SSL_CTX_get_timeout - manipulate timeout values for session caching SYNOPSIS
#include <openssl/ssl.h> long SSL_CTX_set_timeout(SSL_CTX *ctx, long t); long SSL_CTX_get_timeout(SSL_CTX *ctx); DESCRIPTION
SSL_CTX_set_timeout() sets the timeout for newly created sessions for ctx to t. The timeout value t must be given in seconds. SSL_CTX_get_timeout() returns the currently set timeout value for ctx. NOTES
Whenever a new session is created, it is assigned a maximum lifetime. This lifetime is specified by storing the creation time of the session and the timeout value valid at this time. If the actual time is later than creation time plus timeout, the session is not reused. Due to this realization, all sessions behave according to the timeout value valid at the time of the session negotiation. Changes of the timeout value do not affect already established sessions. The expiration time of a single session can be modified using the SSL_SESSION_get_time(3) family of functions. Expired sessions are removed from the internal session cache, whenever SSL_CTX_flush_sessions(3) is called, either directly by the application or automatically (see SSL_CTX_set_session_cache_mode(3)) The default value for session timeout is decided on a per protocol basis, see SSL_get_default_timeout(3). All currently supported protocols have the same default timeout value of 300 seconds. RETURN VALUES
SSL_CTX_set_timeout() returns the previously set timeout value. SSL_CTX_get_timeout() returns the currently set timeout value. SEE ALSO
ssl(3), SSL_CTX_set_session_cache_mode(3), SSL_SESSION_get_time(3), SSL_CTX_flush_sessions(3), SSL_get_default_timeout(3) 1.0.1e 2013-02-11 SSL_CTX_set_timeout(3)
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