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Shell Programming and Scripting
Replace long space to become one space?
Post 302374946 by ghostdog74 on Thursday 26th of November 2009 02:59:26 AM
11-26-2009
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LEARN ABOUT HPUX
datalock
datalock(3C) datalock(3C) NAME
datalock() - lock process into memory after allocating data and stack space SYNOPSIS
DESCRIPTION
allocates at least datsiz bytes of data space and stsiz bytes of stack space, then locks the program in memory. The data space is allo- cated by (see malloc(3C)). After the program is locked, this space is released by (see malloc(3C)), making it available for use. This allows the calling program to use that much space dynamically without receiving the signal. The effective user ID of the calling process must be super-user or be a member of or have an effective group ID of a group having PRIV_MLOCK access to use this call (see setprivgrp(2) in getprivgrp(2)). EXAMPLES
The following call to allocates 4096 bytes of data space and 2048 bytes of stack space, then locks the process in memory: RETURN VALUE
returns -1 if cannot allocate enough memory or if returned an error (see plock(2)). WARNINGS
Multiple datalocks cannot be the same as one big one. Methods for calculating the required size are not yet well developed. AUTHOR
was developed by HP. SEE ALSO
getprivgrp(2), plock(2), thread_safety(5). datalock(3C)