FEI Version of the Day
fei_Pool_alloc.cpp
00001 /*
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00004 //             FEI: Finite Element Interface to Linear Solvers
00005 //                  Copyright (2005) Sandia Corporation.
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00007 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation, the
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00009 //
00010 // Redistribution and use in source and binary forms, with or without
00011 // modification, are permitted provided that the following conditions are
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00013 //
00014 // 1. Redistributions of source code must retain the above copyright
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00016 //
00017 // 2. Redistributions in binary form must reproduce the above copyright
00018 // notice, this list of conditions and the following disclaimer in the
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00020 //
00021 // 3. Neither the name of the Corporation nor the names of the
00022 // contributors may be used to endorse or promote products derived from
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00040 // @HEADER
00041 */
00042 
00043 
00044 #include "fei_macros.hpp"
00045 
00046 #include "fei_Pool_alloc.hpp"
00047 #include "fei_Pool.hpp"
00048 
00049 #include <cstdlib>
00050 #include <map>
00051 
00052 struct fei_map_holder {
00053   std::map<size_t,fei_Pool*> fei_mem_pools;
00054 
00055   ~fei_map_holder()
00056   {
00057     std::map<size_t,fei_Pool*>::iterator
00058       iter = fei_mem_pools.begin(),
00059       iter_end = fei_mem_pools.end();
00060     for(; iter != iter_end; ++iter) {
00061       delete iter->second;
00062     }
00063   }
00064 };
00065 
00066 static fei_map_holder fmh;
00067 
00068 fei_Pool* get_fei_mem_pool(size_t n)
00069 {
00070   std::map<size_t,fei_Pool*>::iterator
00071     iter = fmh.fei_mem_pools.find(n);
00072 
00073   if (iter == fmh.fei_mem_pools.end()) {
00074     fei_Pool* new_pool = new fei_Pool(n);
00075     fmh.fei_mem_pools.insert(std::make_pair(n,new_pool));
00076     return(new_pool);
00077   }
00078 
00079   return(iter->second);
00080 }
00081 
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