mirror of
https://github.com/peterosterlund2/droidfish.git
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235 lines
7.6 KiB
C
235 lines
7.6 KiB
C
/*
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This Software is distributed with the following X11 License,
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sometimes also known as MIT license.
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Copyright (c) 2010 Miguel A. Ballicora
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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*/
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#if !defined(H_GTBPROBE)
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#define H_GTBPROBE
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/
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#include <stdlib.h>
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#define tb_MAXPATHLEN 1024
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/*----------------------------------*\
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| CONSTANTS
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\*----------------------------------*/
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enum TB_mask_values { tb_RESMASK = 3, tb_INFOMASK = 7, tb_PLYSHIFT = 3 };
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enum TB_return_values {
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tb_DRAW = 0,
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tb_WMATE = 1,
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tb_BMATE = 2,
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tb_FORBID = 3,
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tb_UNKNOWN = 7
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};
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enum TB_pieces {
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tb_NOPIECE, tb_PAWN, tb_KNIGHT, tb_BISHOP, tb_ROOK, tb_QUEEN, tb_KING
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};
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enum TB_sides {
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tb_WHITE_TO_MOVE, tb_BLACK_TO_MOVE
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};
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enum TB_squares {
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tb_A1, tb_B1, tb_C1, tb_D1, tb_E1, tb_F1, tb_G1, tb_H1,
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tb_A2, tb_B2, tb_C2, tb_D2, tb_E2, tb_F2, tb_G2, tb_H2,
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tb_A3, tb_B3, tb_C3, tb_D3, tb_E3, tb_F3, tb_G3, tb_H3,
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tb_A4, tb_B4, tb_C4, tb_D4, tb_E4, tb_F4, tb_G4, tb_H4,
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tb_A5, tb_B5, tb_C5, tb_D5, tb_E5, tb_F5, tb_G5, tb_H5,
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tb_A6, tb_B6, tb_C6, tb_D6, tb_E6, tb_F6, tb_G6, tb_H6,
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tb_A7, tb_B7, tb_C7, tb_D7, tb_E7, tb_F7, tb_G7, tb_H7,
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tb_A8, tb_B8, tb_C8, tb_D8, tb_E8, tb_F8, tb_G8, tb_H8,
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tb_NOSQUARE
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};
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enum TB_castling {
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tb_NOCASTLE = 0,
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tb_WOO = 8,
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tb_WOOO = 4,
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tb_BOO = 2,
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tb_BOOO = 1
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};
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enum TB_compression_scheme {
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tb_UNCOMPRESSED, tb_CP1, tb_CP2, tb_CP3, tb_CP4
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};
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/*----------------------------------*\
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| FUNCTIONS
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\*----------------------------------*/
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extern char * tb_init (int verbosity, int compression_scheme, const char **paths);
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extern char * tb_restart(int verbosity, int compression_scheme, const char **paths);
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extern void tb_done (void);
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extern int /*bool*/ tb_probe_hard
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(unsigned stm,
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unsigned epsq,
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unsigned castles,
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const unsigned *inp_wSQ,
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const unsigned *inp_bSQ,
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const unsigned char *inp_wPC,
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const unsigned char *inp_bPC,
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/*@out@*/ unsigned *tbinfo,
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/*@out@*/ unsigned *plies);
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extern int /*bool*/ tb_probe_soft
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(unsigned stm,
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unsigned epsq,
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unsigned castles,
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const unsigned *inp_wSQ,
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const unsigned *inp_bSQ,
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const unsigned char *inp_wPC,
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const unsigned char *inp_bPC,
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/*@out@*/ unsigned *tbinfo,
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/*@out@*/ unsigned *plies);
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extern int /*bool*/ tb_probe_WDL_hard
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(unsigned stm,
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unsigned epsq,
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unsigned castles,
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const unsigned *inp_wSQ,
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const unsigned *inp_bSQ,
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const unsigned char *inp_wPC,
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const unsigned char *inp_bPC,
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/*@out@*/ unsigned *tbinfo);
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extern int /*bool*/ tb_probe_WDL_soft
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(unsigned stm,
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unsigned epsq,
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unsigned castles,
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const unsigned *inp_wSQ,
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const unsigned *inp_bSQ,
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const unsigned char *inp_wPC,
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const unsigned char *inp_bPC,
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/*@out@*/ unsigned *tbinfo);
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extern int /*bool*/ tb_is_initialized (void);
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/*
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| tb_availability() returns 0 if no TBs available
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| Otherwise, the following bits are turned 'on' if...
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| ----------------------------------
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| bit: meaning
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| ----------------------------------
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| 0: at least one 3-pc TB is present
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| 1: 3-pc TBs are complete
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| 2: at least one 4-pc TB is present
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| 3: 4-pc TBs are complete
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| 4: at least one 5-pc TB is present
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| 5: 5-pc TBs are complete
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| 6: at least one 6-pc TB is present
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| 7: 6-pc TBs are complete
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| Example: if 63 is returned, it means all 3-4-5-pc TBs are present
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| Bits 6 and 7 will be always off, of course, until 6-piece TBs
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| are supported.
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*/
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extern unsigned int tb_availability(void);
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/*
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| tb_indexmemory ()returns
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| how much memory has been allocated for indexes
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*/
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extern size_t tb_indexmemory (void);
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/*----------------------------------*\
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| cache
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\*----------------------------------*/
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extern int /*bool*/ tbcache_init (size_t cache_mem, int wdl_fraction);
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extern int /*bool*/ tbcache_restart (size_t cache_mem, int wdl_fraction);
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extern void tbcache_done (void);
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extern int /*bool*/ tbcache_is_on (void);
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extern void tbcache_flush (void);
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/*----------------------------------*\
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| STATS
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\*----------------------------------*/
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/*
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| For maximum portability, some stats are provided
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| in two 32 bits integers rather than a single 64 bit number.
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| For intance, prob_hard_hits[0] contains the less significant 32 bits
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| (0 to 31), and prob_hard_hits[1] the most significant ones (32 to 63).
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| The 64-bit number can be recreated like this:
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| uint64_t x;
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| x = (uint64_t)probe_hard_hits[0]|((uint64_t)probe_hard_hits[1]<<32);
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| The user has the responsibility to combine the numbers and use the
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| proper 64 bit integers.
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*/
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struct TB_STATS {
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long unsigned int wdl_easy_hits [2]; /* hits that were found in own wdl cache */
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long unsigned int wdl_hard_prob [2]; /* hard probes to the wdl cache: if fail, they will go to HD */
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long unsigned int wdl_soft_prob [2]; /* soft probes to the wdl cache: if fail, they won't go to HD */
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size_t wdl_cachesize ; /* size allocated for wdl cache */
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double wdl_occupancy ; /* % of slots filled in wdl cache */
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long unsigned int dtm_easy_hits [2]; /* hits that were found in own dtm cache */
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long unsigned int dtm_hard_prob [2]; /* hard probes to the dtm cache: if fail, they will go to HD */
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long unsigned int dtm_soft_prob [2]; /* soft probes to the dtm cache: if fail, they won't go to HD */
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size_t dtm_cachesize ; /* size allocated for dtm cache */
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double dtm_occupancy ; /* % of slots filled in dtm cache */
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long unsigned int total_hits [2]; /* succesful probes */
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long unsigned int memory_hits [2]; /* succesful probes to memory */
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long unsigned int drive_hits [2]; /* succesful probes to the Hard drive */
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long unsigned int drive_miss [2]; /* failing probes to the Hard drive */
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long unsigned int bytes_read [2]; /* bytes read from Hard drive */
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long unsigned int files_opened ; /* number of files newly opened */
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double memory_efficiency ; /* % hits from memory over total hits */
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};
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extern void tbstats_reset (void);
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extern void tbstats_get (struct TB_STATS *stats);
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/*----------------------------------*\
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| PATH MANAGEMENT
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\*----------------------------------*/
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extern const char ** tbpaths_init (void);
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extern const char ** tbpaths_add (const char **ps, const char *newpath);
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extern const char ** tbpaths_done (const char **ps);
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extern const char * tbpaths_getmain (void);
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/*<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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