HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| e2c2a699 AW |
1 | /* Copyright (C) 2010 Free Software Foundation, Inc. |
| 2 | * | |
| 3 | * This library is free software; you can redistribute it and/or | |
| 4 | * modify it under the terms of the GNU Lesser General Public License | |
| 5 | * as published by the Free Software Foundation; either version 3 of | |
| 6 | * the License, or (at your option) any later version. | |
| 7 | * | |
| 8 | * This library is distributed in the hope that it will be useful, but | |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 11 | * Lesser General Public License for more details. | |
| 12 | * | |
| 13 | * You should have received a copy of the GNU Lesser General Public | |
| 14 | * License along with this library; if not, write to the Free Software | |
| 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
| 16 | * 02110-1301 USA | |
| 17 | */ | |
| 18 | ||
| 19 | #ifndef SCM_FOREIGN_H | |
| 20 | #define SCM_FOREIGN_H | |
| 21 | ||
| 22 | ||
| 23 | ||
| 24 | /* A subset of libffi's types. */ | |
| 25 | typedef enum | |
| 26 | { | |
| 27 | SCM_FOREIGN_TYPE_VOID, | |
| 28 | SCM_FOREIGN_TYPE_FLOAT, | |
| 29 | SCM_FOREIGN_TYPE_DOUBLE, | |
| 30 | SCM_FOREIGN_TYPE_UINT8, | |
| 31 | SCM_FOREIGN_TYPE_INT8, | |
| 32 | SCM_FOREIGN_TYPE_UINT16, | |
| 33 | SCM_FOREIGN_TYPE_INT16, | |
| 34 | SCM_FOREIGN_TYPE_UINT32, | |
| 35 | SCM_FOREIGN_TYPE_INT32, | |
| 36 | SCM_FOREIGN_TYPE_UINT64, | |
| 37 | SCM_FOREIGN_TYPE_INT64, | |
| 38 | SCM_FOREIGN_TYPE_STRUCT, | |
| 39 | SCM_FOREIGN_TYPE_POINTER | |
| 40 | } scm_t_foreign_type; | |
| 41 | ||
| 42 | ||
| 43 | typedef void (*scm_t_foreign_finalizer) (void *); | |
| 44 | ||
| 45 | #define SCM_FOREIGN_P(x) \ | |
| 46 | (!SCM_IMP (x) && SCM_TYP7(x) == scm_tc7_foreign) | |
| 47 | #define SCM_VALIDATE_FOREIGN(pos, x) \ | |
| 48 | SCM_MAKE_VALIDATE (pos, x, FOREIGN_P) | |
| 49 | #define SCM_FOREIGN_TYPE(x) \ | |
| 50 | ((scm_t_foreign_type)((SCM_CELL_WORD_0 (x) >> 8)&0xff)) | |
| 51 | #define SCM_FOREIGN_OBJECT(x, ctype) \ | |
| 52 | ((ctype*)SCM_CELL_OBJECT_1 (x)) | |
| 53 | #define SCM_FOREIGN_OBJECT_REF(x, ctype) \ | |
| 54 | (*SCM_FOREIGN_OBJECT (x, ctype)) | |
| 55 | #define SCM_FOREIGN_OBJECT_SET(x, ctype, val) \ | |
| 56 | (*SCM_FOREIGN_OBJECT (x, ctype) = (val)) | |
| 57 | ||
| 58 | #define SCM_FOREIGN_TYPED_P(x, type) \ | |
| 59 | (SCM_FOREIGN_P (x) && SCM_FOREIGN_TYPE (x) == SCM_FOREIGN_TYPE_##type) | |
| 60 | #define SCM_VALIDATE_FOREIGN_TYPED(pos, x, type) \ | |
| 61 | do { \ | |
| 62 | SCM_ASSERT_TYPE (SCM_FOREIGN_TYPED_P (x, type), x, pos, FUNC_NAME, \ | |
| 63 | "FOREIGN_"#type"_P"); \ | |
| 64 | } while (0) | |
| 65 | ||
| 66 | #define SCM_FOREIGN_SIMPLE_P(x) \ | |
| 67 | (SCM_FOREIGN_P (x) \ | |
| 68 | && SCM_FOREIGN_TYPE (x) != SCM_FOREIGN_TYPE_VOID \ | |
| 69 | && SCM_FOREIGN_TYPE (x) != SCM_FOREIGN_TYPE_STRUCT \ | |
| 70 | && SCM_FOREIGN_TYPE (x) != SCM_FOREIGN_TYPE_POINTER) | |
| 71 | #define SCM_VALIDATE_FOREIGN_SIMPLE(pos, x) \ | |
| 72 | SCM_MAKE_VALIDATE (pos, x, FOREIGN_SIMPLE_P) | |
| 73 | ||
| 74 | SCM_API SCM scm_c_from_foreign (scm_t_foreign_type type, void *val, size_t size, | |
| 75 | scm_t_foreign_finalizer finalizer); | |
| 76 | SCM_API SCM scm_c_take_foreign (scm_t_foreign_type type, void *val, | |
| 77 | scm_t_foreign_finalizer finalizer); | |
| 78 | ||
| 79 | SCM_API SCM scm_foreign_ref (SCM foreign); | |
| 80 | SCM_API SCM scm_foreign_set_x (SCM foreign, SCM val); | |
| 81 | ||
| 82 | SCM_INTERNAL void scm_i_foreign_print (SCM foreign, SCM port, | |
| 83 | scm_print_state *pstate); | |
| 84 | SCM_INTERNAL void scm_init_foreign (void); | |
| 85 | ||
| 86 | ||
| 87 | #endif /* SCM_FOREIGN_H */ |