GRASS GIS 8 Programmer's Manual  8.4.0dev(2024)-6da4f45b8e
ami_config.h
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1 /****************************************************************************
2  *
3  * MODULE: iostream
4  *
5 
6  * COPYRIGHT (C) 2007 Laura Toma
7  *
8  *
9 
10  * Iostream is a library that implements streams, external memory
11  * sorting on streams, and an external memory priority queue on
12  * streams. These are the fundamental components used in external
13  * memory algorithms.
14 
15  * Credits: The library was developed by Laura Toma. The kernel of
16  * class STREAM is based on the similar class existent in the GPL TPIE
17  * project developed at Duke University. The sorting and priority
18  * queue have been developed by Laura Toma based on communications
19  * with Rajiv Wickremesinghe. The library was developed as part of
20  * porting Terraflow to GRASS in 2001. PEARL upgrades in 2003 by
21  * Rajiv Wickremesinghe as part of the Terracost project.
22 
23  *
24  * This program is free software; you can redistribute it and/or modify
25  * it under the terms of the GNU General Public License as published by
26  * the Free Software Foundation; either version 2 of the License, or
27  * (at your option) any later version.
28  *
29 
30  * This program is distributed in the hope that it will be useful,
31  * but WITHOUT ANY WARRANTY; without even the implied warranty of
32  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
33  * General Public License for more details. *
34  * **************************************************************************/
35 
36 #ifndef _ami_config_h
37 #define _ami_config_h
38 
39 // CHOOSE PQUEUE IMPLEMENTATION
40 //------------------------------------------------------------
41 // #define IM_PQUEUE
42 // #define EM_PQUEUE
43 #define EMPQ_ADAPTIVE
44 
45 // maximize memory usage by keeping streams on disk
46 //------------------------------------------------------------
47 #if (defined EM_PQUEUE || defined EMPQ_ADAPTIVE)
48 // enables keeping streams on disk, rather than in memory;
49 #define SAVE_MEMORY
50 #endif
51 
52 #if (defined EMPQ_ADAPTIVE && !defined SAVE_MEMORY)
53 #error EMPQ_ADAPTIVE requires SAVE_MEMORY set
54 #endif
55 
56 #endif