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<TITLE>Out of Memory</TITLE>
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<!-- =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>
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