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atom_parameter_manager.cpp
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atom_parameter_manager.cpp
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/*
$Id: atom_parameter_manager.cpp,v 1.4 2009/05/08 23:17:34 rhuey Exp $
AutoGrid
Copyright (C) 2009 The Scripps Research Institute. All rights reserved.
AutoGrid is a Trade Mark of The Scripps Research Institute.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#define MAXKEY (256*256)
#include <stdlib.h>
#include <string.h>
#include "structs.h" // needed for ParameterEntry structure
#include "atom_parameter_manager.h"
typedef ParameterEntry PE;
static PE *dictionary[MAXKEY];
static unsigned int hash(const char key[]) {
switch (strlen(key)) {
case 0: return 0;
case 1: return (unsigned int)key[0];
default: return (unsigned int)key[0] + 256*(unsigned int)key[1];
}
}
void apm_enter(const char key[], PE value) {
if (dictionary[hash(key)] == NULL) {
dictionary[hash(key)] = (PE *) calloc(1, sizeof(PE));
}
*(dictionary[hash(key)]) = value; // this replaces, as well as inserts
return;
}
PE * apm_find(const char key[]) {
return dictionary[hash(key)];
}