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Viewing changes to xr/netbuffer/checkspace.cc

  • Committer: Bazaar Package Importer
  • Author(s): Stefan Ritter
  • Date: 2010-07-05 16:27:00 UTC
  • Revision ID: james.westby@ubuntu.com-20100705162700-0g08tfav8ee9y51u
Tags: upstream-2.65
Import upstream version 2.65

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xr/netbuffer/checkspace.cc
 
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#include "netbuffer"
 
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void Netbuffer::check_space(unsigned extra) {
 
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    PROFILE("Netbuffer::check_space");
 
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    if (!buf_alloced) {
 
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        buf_alloced = extra;
 
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        // When the first network buffer is allocated in HTTP mode, get
 
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        // twice as much. Most often that will be enough to fetch the whole
 
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        // client request, so that one realloc() will be spared.
 
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        if (extra == config.buffersize() &&
 
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            config.stype() == Servertype::t_http)
 
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            buf_alloced <<= 1;
 
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        debugmsg (Mstr("Netbuffer: reserving ") + buf_alloced +
 
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                  " bytes for network buffer\n");
 
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        LOCK_MALLOC;
 
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        buf_data = (char*)malloc(buf_alloced);
 
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        UNLOCK_MALLOC;
 
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        if (! buf_data)
 
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            throw Error("Memory fault in Netbuffer::check_space");
 
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    } else if (buf_sz + extra > buf_alloced) {
 
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        debugmsg((Mstr("Netbuffer: reallocating net buffer from ") +
 
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                  buf_alloced) +
 
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                 (Mstr(" to ") + (buf_alloced + extra)) + " bytes\n");
 
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        buf_alloced += extra;
 
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        LOCK_MALLOC;
 
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        buf_data = (char*)realloc(buf_data, buf_alloced);
 
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        UNLOCK_MALLOC;
 
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        if (! buf_data)
 
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            throw Error("Memory fault in Netbuffer::check_space");
 
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    }
 
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}