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authorWilliam Joye <wjoye@cfa.harvard.edu>2017-10-26 16:44:17 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2017-10-26 16:44:17 (GMT)
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-<!-- =defdoc xpaoom xpaoom n -->
-<HTML>
-<HEAD>
-<TITLE>Out of Memory</TITLE>
-</HEAD>
-<BODY>
-
-<!-- =section xpaoom NAME -->
-<H2><A NAME="xpaoom">Xpaoom: What happens when XPA runs out of memory?</A></H2>
-
-<!-- =section xpaoom SYNOPSIS -->
-<H2>Summary</H2>
-<P>
-When XPA can't allocate memory, it exits. You can arrange to have it call
-longjmp() instead.
-
-<!-- =section xpaoom DESCRIPTION -->
-<H2>Description</H2>
-<P>
-When an XPA server or client cannot allocate memory, it will attempt to
-output an error message and then exit. If this is not satisfactory (e.g.,
-perhaps your program is interactive and can recover from OOM errors), you
-can tell XPA to call longjmp() to go to a recovery branch. To pass the
-requisite jmp_buf variable to XPA, make the following call:
-<PRE>
- XPASaveJmp(void *env);
-</PRE>
-The value of env is the address of a jmp_buf variable that was previously
-passed to setjmp(). For example:
-<PRE>
- jmp_buf env;
- ...
- if( setjmp(jmp_buf) != 0 ){
- /* out of memory -- take corrective action, if possible */
- } else {
- /* save env for XPA */
- XPASaveJmp((void *)&jmp_buf);
- }
- // enter main loop ...
-</PRE>
-
-<!-- =section xpaoom SEE ALSO -->
-<!-- =text See xpa(n) for a list of XPA help pages -->
-<!-- =stop -->
-
-<P>
-<A HREF="./help.html">Go to XPA Help Index</A>
-
-<H5>Last updated: April 7, 2009</H5>
-</BODY>
-</HTML>
-