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Full Discussion: I need your help.
Operating Systems Solaris I need your help. Post 302233317 by matrixmadhan on Sunday 7th of September 2008 04:45:12 AM
Old 09-07-2008
Quote:
Again, this is why we have tail -f
I was thinking in the following lines

- open the file only once
- sleep for 'n' units of time
- once process is awake, store the current file position
- reopen the file and position the file pointer to the value stored in previous step
- now validate, grep, processing etc
- sleep once again
- just loop through the above process
 
sleep(3)						     Library Functions Manual							  sleep(3)

NAME
sleep - Suspends execution for an interval of time LIBRARY
Standard C Library (libc.a) Threads Library (libpthreads.a) SYNOPSIS
#include <unistd.h> unsigned int sleep ( unsigned int seconds ); STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: sleep(): XPG4, XPG4-UNIX Refer to the standards(5) reference page for more information about industry standards and associated tags. PARAMETERS
Specifies the number of seconds to sleep. DESCRIPTION
The sleep() function suspends execution of a process for the interval specified by the seconds parameter. The suspension time may be longer than requested due to the scheduling of other activity by the system. In a multi-threaded environment, the sleep() function is redefined so that only the calling thread is suspended. RETURN VALUES
If the sleep() function returns because the requested time has elapsed, it returns 0 (zero). If the sleep() function returns because it caught a signal, the function returns the number of seconds remaining in the suspension. RELATED INFORMATION
Commands: wall(1), shutdown(8) sleep(1) Functions: sigaction(2), alarm(3), pause(3) Standards: standards(5) delim off sleep(3)
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