/usr/include/Yap/yap_structs.h is in yap 6.2.2-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* *
* YAP Prolog @(#)c_interface.h 2.2 *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: yap_structs.h *
* Last rev: 15/5/2000 *
* mods: *
* comments: Data structures and defines used in the Interface *
* *
*************************************************************************/
#if defined(__STDC__) || defined(_MSC_VER)
#define PROTO(X,ARGS) X ARGS
#define CONST const
#else
#define PROTO(X,ARGS) X()
#define CONST /* empty */
#endif
#ifndef HAS_YAP_H
/* Type definitions */
#if _WIN64
typedef unsigned long long YAP_CELL;
#else
typedef unsigned long YAP_CELL;
#endif
typedef int YAP_Bool;
typedef YAP_CELL YAP_Term;
typedef YAP_CELL YAP_Arity;
typedef YAP_Term YAP_Module;
typedef struct FunctorEntry *YAP_Functor;
typedef struct AtomEntry *YAP_Atom;
#if _WIN64
typedef long long int YAP_Int;
typedef unsigned long long int YAP_UInt;
#else
typedef long int YAP_Int;
typedef unsigned long int YAP_UInt;
#endif
typedef double YAP_Float;
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
#endif
#define YAP_BOOT_FROM_PROLOG 0
#define YAP_BOOT_FROM_SAVED_CODE 1
#define YAP_BOOT_FROM_SAVED_STACKS 2
#define YAP_FULL_BOOT_FROM_PROLOG 4
#define YAP_BOOT_ERROR -1
#define YAP_WRITE_QUOTED 0
#define YAP_WRITE_HANDLE_VARS 1
#define YAP_WRITE_IGNORE_OPS 2
#define YAP_CONSULT_MODE 0
#define YAP_RECONSULT_MODE 1
typedef struct {
/* if NON-NULL, path where we can find the saved state */
char *SavedState;
/* if NON-0, minimal size for Heap or Code Area */
unsigned long int HeapSize;
/* if NON-0, maximal size for Heap or Code Area */
unsigned long int MaxHeapSize;
/* if NON-0, minimal size for Local+Global Stack */
unsigned long int StackSize;
/* if NON-0, maximal size for Local+Global Stack */
unsigned long int MaxStackSize;
unsigned long int MaxGlobalSize;
/* if NON-0, minimal size for Trail */
unsigned long int TrailSize;
/* if NON-0, maximal size for Trail */
unsigned long int MaxTrailSize;
/* if NON-0, minimal size for AttributeVarStack */
unsigned long int AttsSize;
/* if NON-0, maximal size for AttributeVarStack */
unsigned long int MaxAttsSize;
/* if NON-NULL, value for YAPLIBDIR */
char *YapLibDir;
/* if NON-NULL, name for a Prolog file to use when booting */
char *YapPrologBootFile;
/* if NON-NULL, name for a Prolog file to use when initialising */
char *YapPrologInitFile;
/* if NON-NULL, name for a Prolog file to consult before entering top-level */
char *YapPrologRCFile;
/* if NON-NULL, a goal to run before top-level */
char *YapPrologGoal;
/* if NON-NULL, a goal to run as top-level */
char *YapPrologTopLevelGoal;
/* if NON-NULL, a path to extend file-search-path */
char *YapPrologAddPath;
/* if previous NON-NULL and TRUE, halt after consulting that file */
int HaltAfterConsult;
/* ignore .yaprc, .prolog.ini, etc. files. */
int FastBoot;
/* the next field only interest YAPTAB */
/* if NON-0, maximum size for Table Space */
unsigned long int MaxTableSpaceSize;
/* the next three fields only interest YAPOR, but we keep them so that
users don't need to recompile DLL in order to use YAPOR */
/* if NON-0, number of workers we want to have (default=1) */
unsigned long int NumberWorkers;
/* if NON-0, manage the inner scheduler loop (default = 10) */
unsigned long int SchedulerLoop;
/* if NON-0, say how long to keep nodes (default = 3) */
unsigned long int DelayedReleaseLoad;
/* end of YAPOR fields */
/* whether Prolog should handle interrupts */
int PrologShouldHandleInterrupts;
/* flag for JIT mode */
int ExecutionMode;
/* number of arguments that Prolog will see */
int Argc;
/* array of arguments as seen by Prolog */
char **Argv;
/* QuietMode */
int QuietMode;
#ifdef MYDDAS_MYSQL
/* If any myddas option was given */
short myddas;
/* MYDDAS Fields */
char *myddas_user;
char *myddas_pass;
char *myddas_db;
char *myddas_host;
#endif
/* errornumber */
int ErrorNo;
/* errorstring */
char *ErrorCause;
} YAP_init_args;
/* from thread.h */
typedef struct {
unsigned long int ssize;
unsigned long int tsize;
YAP_Term alias;
int (*cancel)(int);
} YAP_thread_attr;
typedef struct YAP_pred_entry *YAP_PredEntryPtr;
/* this should be opaque to the user */
typedef struct {
unsigned long b;
struct yami *p;
} YAP_dogoalinfo;
typedef int (*YAP_agc_hook)(void *_Atom);
typedef void (*YAP_halt_hook)(int exit_code, void *closure);
/********* execution mode ***********************/
typedef enum
{
YAPC_INTERPRETED, /* interpreted */
YAPC_MIXED_MODE_USER, /* mixed mode only for user predicates */
YAPC_MIXED_MODE_ALL, /* mixed mode for all predicates */
YAPC_COMPILE_USER, /* compile all user predicates*/
YAPC_COMPILE_ALL /* compile all predicates */
} yapc_exec_mode;
/********* YAP C-Flags ***********************/
typedef enum
{
YAPC_ENABLE_GC, /* enable or disable garbage collection */
YAPC_ENABLE_AGC /* enable or disable atom garbage collection */
} yap_flag_t;
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