Mail Archives: djgpp/2008/03/13/12:04:19
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| X-Recipient: | djgpp AT delorie DOT com
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| From: | "BBelden" <bbelden AT teleco DOT com>
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| To: | <djgpp AT delorie DOT com>
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| Subject: | spawnl mode=P_OVERLAY
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| Date: | Thu, 13 Mar 2008 12:50:09 -0400
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| Message-ID: | <000901c8852a$4cb610a0$2102a8c0@telecobbelden>
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| Reply-To: | djgpp AT delorie DOT com
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Hello everyone.
I have searched through the archives for help but didn't really help.
I have multiple djgpp (32bit) compiled programs that continuously
spawnl(P_OVERLAY,.) each other.
The problem is, I have 100k conventional memory available at the start of
these
Programs.
The parent always calls the child with spawnl(P_OVERLAY,.)
I can do this about 6 times before crashing to dos.
Can I deallocate the memory used by the parent? It seems that the parent's
memory
Never becomes available.
Is is true that each successive call to spawnl will need ~18k of
conventional memory
Even if I use P_OVERLAY?
Thanks for any help\ideas
Bruce
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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hello everyone.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have searched through the archives for help but =
didn’t
really help.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have multiple djgpp (32bit) compiled programs that
continuously spawnl(P_OVERLAY,…) each =
other.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>The problem is, I have 100k conventional memory =
available at
the start of these<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Programs. <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>The parent always calls the child with =
spawnl(P_OVERLAY,…)<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I can do this about 6 times before crashing to =
dos.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Can I deallocate the memory used by the parent? =
It
seems that the parent’s memory<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Never becomes available. =
<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Is is true that each successive call to spawnl will =
need ~18k
of conventional memory<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Even if I use P_OVERLAY?<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks for any =
help\ideas<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Bruce<o:p></o:p></span></font></p>
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style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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