From 1066ded7d98de0915c2550a32e67831ec2032d5e Mon Sep 17 00:00:00 2001 From: Vitor Santos Costa Date: Fri, 23 Feb 2018 14:09:09 +0000 Subject: [PATCH] blobs --- H/YapBlobs.h | 81 +++++++++++++++++++++++++++++++++ include/{blobs.h => YapBlobs.h} | 0 2 files changed, 81 insertions(+) create mode 100644 H/YapBlobs.h rename include/{blobs.h => YapBlobs.h} (100%) diff --git a/H/YapBlobs.h b/H/YapBlobs.h new file mode 100644 index 000000000..0e0f73803 --- /dev/null +++ b/H/YapBlobs.h @@ -0,0 +1,81 @@ +// +// blobs.h +// yap +// +// Created by VITOR SANTOS COSTA on 09/05/15. +// Copyright (c) 2015 VITOR SANTOS COSTA. All rights reserved. +// + +// based on the SWI Blob implementation, an extension of atoms for SWI-Prolog + +#ifndef BLOBS_H +#define BLOBS_H + +#if !defined(X_API) && !defined(SWIGYAP) +#if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(PL_KERNEL) +#define X_API __declspec(dllexport) +#else +#define X_API +#endif +#endif + +/******************************* + * BLOBS * + *******************************/ + +#define YAP_BLOB_MAGIC_B 0x75293a00 /* Magic to validate a blob-type */ +#define PL_BLOB_VERSION (YAP_BLOB_MAGIC_B|PL_BLOB_VERSION) + +#define PL_BLOB_UNIQUE 0x01 /* Blob content is unique */ +#define PL_BLOB_TEXT 0x02 /* blob contains text */ +#define PL_BLOB_NOCOPY 0x04 /* do not copy the data */ +#define PL_BLOB_WCHAR 0x08 /* wide character string */ + +typedef struct YAP_blob_t +{ uintptr_t magic; /* YAP_BLOB_MAGIC */ + uintptr_t flags; /* YAP_BLOB_* */ + char * name; /* name of the type */ + int (*release)(Atom a); + int (*compare)(Atom a, Atom b); +#ifdef SIO_MAGIC + int (*write)(FILE *s, Atom a, int flags); +#else + int (*write)(void *s, Atom a, int flags); +#endif + void (*acquire)(Atom a); +#ifdef SIO_MAGIC + int (*save)(Atom a, FILE *s); + Atom (*load)(FILE *s); +#else + int (*save)(Atom a, void*); + Atom (*load)(void *s); +#endif + /* private */ + void * reserved[10]; /* for future extension */ + int registered; /* Already registered? */ + int rank; /* Rank for ordering atoms */ + struct YAP_blob_t * next; /* next in registered type-chain */ + Atom atom_name; /* Name as atom */ +} blob_type_t; + +int Yap_write_blob(AtomEntry *ref, FILE *stream); +char * Yap_blob_to_string(AtomEntry *ref, const char *s, size_t sz); +X_API bool YAP_is_blob(YAP_Term t, blob_type_t **type); +X_API bool YAP_unify_blob(YAP_Term *t, void *blob, size_t len, + blob_type_t *type); +X_API bool YAP_put_blob(YAP_Term *t, void *blob, size_t len, + blob_type_t *type); +X_API bool YAP_get_blob(YAP_Term t, void **blob, size_t *len, + blob_type_t **type); + +X_API void* YAP_blob_data(Atom a, + size_t *len, + struct YAP_blob_t **type); + +X_API void YAP_register_blob_type(blob_type_t *type); +X_API blob_type_t* YAP_find_blob_type(const char* name); +//YAP_blob_type_t* YAP_find_blob_type(Atom at); +X_API bool YAP_unregister_blob_type(blob_type_t *type); + + +#endif diff --git a/include/blobs.h b/include/YapBlobs.h similarity index 100% rename from include/blobs.h rename to include/YapBlobs.h