Commit | Line | Data |
---|---|---|
0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
0527e687 DH |
3 | #ifndef SCM__SCM_H |
4 | #define SCM__SCM_H | |
5 | ||
fe51c7b3 | 6 | /* Copyright (C) 1995, 1996, 2000, 2001, 2002, 2006, 2008, 2009, 2010, |
b3ae2b50 | 7 | * 2011, 2013, 2014 Free Software Foundation, Inc. |
0527e687 | 8 | * |
d3cf93bc | 9 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
10 | * modify it under the terms of the GNU Lesser General Public License |
11 | * as published by the Free Software Foundation; either version 3 of | |
12 | * the License, or (at your option) any later version. | |
0527e687 | 13 | * |
53befeb7 NJ |
14 | * This library is distributed in the hope that it will be useful, but |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
d3cf93bc NJ |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
17 | * Lesser General Public License for more details. | |
0527e687 | 18 | * |
d3cf93bc NJ |
19 | * You should have received a copy of the GNU Lesser General Public |
20 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
22 | * 02110-1301 USA | |
d3cf93bc | 23 | */ |
0527e687 | 24 | |
0f2d19dd JB |
25 | \f |
26 | ||
b49ed9c9 RB |
27 | /********************************************************************** |
28 | This file is Guile's central private header. | |
20e6290e | 29 | |
b49ed9c9 RB |
30 | When included by other files, this file should preceed any include |
31 | other than __scm.h. See __scm.h for details regarding the purpose of | |
32 | and differences between _scm.h and __scm.h. | |
33 | **********************************************************************/ | |
176067df | 34 | |
9a5fa6e9 NJ |
35 | #if defined(__ia64) && !defined(__ia64__) |
36 | # define __ia64__ | |
37 | #endif | |
176067df | 38 | |
b49ed9c9 RB |
39 | #if HAVE_CONFIG_H |
40 | # include <config.h> | |
41 | #endif | |
176067df | 42 | |
114bc68a LC |
43 | /* The size of `scm_t_bits'. */ |
44 | #define SIZEOF_SCM_T_BITS SIZEOF_VOID_P | |
45 | ||
cbee5075 NJ |
46 | /* Undefine HAVE_STRUCT_TIMESPEC, because the libguile C code doesn't |
47 | need it anymore, and because on MinGW: | |
48 | ||
49 | - the definition of struct timespec is provided (if at all) by | |
50 | pthread.h | |
51 | ||
52 | - pthread.h will _not_ define struct timespec if | |
53 | HAVE_STRUCT_TIMESPEC is 1, because then it thinks that it doesn't | |
54 | need to. | |
55 | ||
56 | The libguile C code doesn't need HAVE_STRUCT_TIMESPEC anymore, | |
57 | because the value of HAVE_STRUCT_TIMESPEC has already been | |
58 | incorporated in how scm_t_timespec is defined (in scmconfig.h), and | |
59 | the rest of the libguile C code now just uses scm_t_timespec. | |
60 | */ | |
61 | #ifdef HAVE_STRUCT_TIMESPEC | |
62 | #undef HAVE_STRUCT_TIMESPEC | |
63 | #endif | |
64 | ||
b49ed9c9 | 65 | #include <errno.h> |
86cfb42d | 66 | #include <verify.h> |
405a79ca | 67 | #include <alignof.h> |
b49ed9c9 | 68 | #include "libguile/__scm.h" |
462a6f1f | 69 | |
20e6290e JB |
70 | /* Include headers for those files central to the implementation. The |
71 | rest should be explicitly #included in the C files themselves. */ | |
a0599745 MD |
72 | #include "libguile/error.h" /* Everyone signals errors. */ |
73 | #include "libguile/print.h" /* Everyone needs to print. */ | |
74 | #include "libguile/pairs.h" /* Everyone conses. */ | |
75 | #include "libguile/list.h" /* Everyone makes lists. */ | |
76 | #include "libguile/gc.h" /* Everyone allocates. */ | |
77 | #include "libguile/gsubr.h" /* Everyone defines global functions. */ | |
78 | #include "libguile/procs.h" /* Same. */ | |
79 | #include "libguile/numbers.h" /* Everyone deals with fixnums. */ | |
80 | #include "libguile/symbols.h" /* For length, chars, values, miscellany. */ | |
81 | #include "libguile/boolean.h" /* Everyone wonders about the truth. */ | |
3d7f708f | 82 | #include "libguile/threads.h" /* You are not alone. */ |
a0599745 | 83 | #include "libguile/snarf.h" /* Everyone snarfs. */ |
fd12a19a AW |
84 | #include "libguile/foreign.h" /* Snarfing needs the foreign data structures. */ |
85 | #include "libguile/programs.h" /* ... and program.h. */ | |
86d31dfe MV |
86 | #include "libguile/variable.h" |
87 | #include "libguile/modules.h" | |
0f633e66 | 88 | #include "libguile/inline.h" |
c6054fea | 89 | #include "libguile/strings.h" |
0f2d19dd | 90 | |
51c1dba8 AW |
91 | /* ASYNC_TICK after finding EINTR in order to handle pending signals, if |
92 | any. See comment in scm_syserror. */ | |
e1a191a8 | 93 | #ifndef SCM_SYSCALL |
0f2d19dd JB |
94 | #ifdef vms |
95 | # ifndef __GNUC__ | |
96 | # include <ssdef.h> | |
fe51c7b3 LC |
97 | # define SCM_SYSCALL(line) \ |
98 | do \ | |
99 | { \ | |
100 | errno = 0; \ | |
101 | line; \ | |
102 | if (EVMSERR == errno && (vaxc$errno>>3)==(SS$_CONTROLC>>3)) \ | |
103 | SCM_ASYNC_TICK; \ | |
104 | else \ | |
105 | break; \ | |
106 | } \ | |
107 | while (1) | |
0f2d19dd JB |
108 | # endif /* ndef __GNUC__ */ |
109 | #endif /* def vms */ | |
e1a191a8 | 110 | #endif /* ndef SCM_SYSCALL */ |
0f2d19dd JB |
111 | |
112 | #ifndef SCM_SYSCALL | |
113 | # ifdef EINTR | |
114 | # if (EINTR > 0) | |
fe51c7b3 LC |
115 | # define SCM_SYSCALL(line) \ |
116 | do \ | |
117 | { \ | |
118 | errno = 0; \ | |
119 | line; \ | |
120 | if (errno == EINTR) \ | |
121 | { \ | |
122 | SCM_ASYNC_TICK; \ | |
123 | errno = EINTR; \ | |
124 | } \ | |
125 | } \ | |
126 | while (errno == EINTR) | |
0f2d19dd JB |
127 | # endif /* (EINTR > 0) */ |
128 | # endif /* def EINTR */ | |
129 | #endif /* ndef SCM_SYSCALL */ | |
130 | ||
131 | #ifndef SCM_SYSCALL | |
e1a191a8 | 132 | # define SCM_SYSCALL(line) line; |
0f2d19dd JB |
133 | #endif /* ndef SCM_SYSCALL */ |
134 | ||
0f2d19dd JB |
135 | \f |
136 | ||
e412e180 | 137 | #ifndef min |
34d19ef6 | 138 | #define min(A, B) ((A) <= (B) ? (A) : (B)) |
e412e180 MD |
139 | #endif |
140 | #ifndef max | |
34d19ef6 | 141 | #define max(A, B) ((A) >= (B) ? (A) : (B)) |
e412e180 | 142 | #endif |
462a6f1f | 143 | |
1880c97d LC |
144 | /* Return the first integer greater than or equal to LEN such that |
145 | LEN % ALIGN == 0. Return LEN if ALIGN is zero. */ | |
146 | #define ROUND_UP(len, align) \ | |
147 | ((align) ? (((len) - 1UL) | ((align) - 1UL)) + 1UL : (len)) | |
2b829bbb KR |
148 | |
149 | ||
ddffdd78 | 150 | #if defined GUILE_USE_64_CALLS && GUILE_USE_64_CALLS && defined(HAVE_STAT64) |
2b829bbb KR |
151 | #define CHOOSE_LARGEFILE(foo,foo64) foo64 |
152 | #else | |
153 | #define CHOOSE_LARGEFILE(foo,foo64) foo | |
154 | #endif | |
155 | ||
156 | /* These names are a bit long, but they make it clear what they represent. */ | |
450be18d LC |
157 | #if SCM_HAVE_STRUCT_DIRENT64 == 1 |
158 | # define dirent_or_dirent64 CHOOSE_LARGEFILE(dirent,dirent64) | |
159 | #else | |
160 | # define dirent_or_dirent64 dirent | |
161 | #endif | |
2b829bbb KR |
162 | #define fstat_or_fstat64 CHOOSE_LARGEFILE(fstat,fstat64) |
163 | #define ftruncate_or_ftruncate64 CHOOSE_LARGEFILE(ftruncate,ftruncate64) | |
22acb298 | 164 | #define lseek_or_lseek64 CHOOSE_LARGEFILE(lseek,lseek64) |
2b829bbb KR |
165 | #define lstat_or_lstat64 CHOOSE_LARGEFILE(lstat,lstat64) |
166 | #define off_t_or_off64_t CHOOSE_LARGEFILE(off_t,off64_t) | |
167 | #define open_or_open64 CHOOSE_LARGEFILE(open,open64) | |
168 | #define readdir_or_readdir64 CHOOSE_LARGEFILE(readdir,readdir64) | |
450be18d LC |
169 | #if SCM_HAVE_READDIR64_R == 1 |
170 | # define readdir_r_or_readdir64_r CHOOSE_LARGEFILE(readdir_r,readdir64_r) | |
171 | #else | |
172 | # define readdir_r_or_readdir64_r readdir_r | |
173 | #endif | |
2b829bbb KR |
174 | #define stat_or_stat64 CHOOSE_LARGEFILE(stat,stat64) |
175 | #define truncate_or_truncate64 CHOOSE_LARGEFILE(truncate,truncate64) | |
176 | #define scm_from_off_t_or_off64_t CHOOSE_LARGEFILE(scm_from_off_t,scm_from_int64) | |
177 | #define scm_from_ino_t_or_ino64_t CHOOSE_LARGEFILE(scm_from_ulong,scm_from_uint64) | |
178 | #define scm_from_blkcnt_t_or_blkcnt64_t CHOOSE_LARGEFILE(scm_from_ulong,scm_from_uint64) | |
179 | #define scm_to_off_t_or_off64_t CHOOSE_LARGEFILE(scm_to_off_t,scm_to_int64) | |
180 | ||
181 | #if SIZEOF_OFF_T == 4 | |
22acb298 KR |
182 | # define scm_to_off_t scm_to_int32 |
183 | # define scm_from_off_t scm_from_int32 | |
184 | #elif SIZEOF_OFF_T == 8 | |
185 | # define scm_to_off_t scm_to_int64 | |
186 | # define scm_from_off_t scm_from_int64 | |
187 | #else | |
188 | # error sizeof(off_t) is not 4 or 8. | |
2b829bbb | 189 | #endif |
8ab3d8a0 KR |
190 | #define scm_to_off64_t scm_to_int64 |
191 | #define scm_from_off64_t scm_from_int64 | |
2b829bbb KR |
192 | |
193 | ||
04245bb7 AW |
194 | \f |
195 | ||
196 | #if defined (vms) | |
197 | /* VMS: Implement SCM_I_SETJMP in terms of setjump. */ | |
198 | extern int setjump(scm_i_jmp_buf env); | |
199 | extern int longjump(scm_i_jmp_buf env, int ret); | |
200 | #define SCM_I_SETJMP setjump | |
201 | #define SCM_I_LONGJMP longjump | |
202 | ||
203 | #elif defined (_CRAY1) | |
204 | /* Cray: Implement SCM_I_SETJMP in terms of setjump. */ | |
205 | extern int setjump(scm_i_jmp_buf env); | |
206 | extern int longjump(scm_i_jmp_buf env, int ret); | |
207 | #define SCM_I_SETJMP setjump | |
208 | #define SCM_I_LONGJMP longjump | |
209 | ||
210 | #elif defined (__ia64__) | |
211 | /* IA64: Implement SCM_I_SETJMP in terms of getcontext. */ | |
212 | # define SCM_I_SETJMP(JB) \ | |
213 | ( (JB).fresh = 1, \ | |
214 | getcontext (&((JB).ctx)), \ | |
215 | ((JB).fresh ? ((JB).fresh = 0, 0) : 1) ) | |
216 | # define SCM_I_LONGJMP(JB,VAL) scm_ia64_longjmp (&(JB), VAL) | |
217 | void scm_ia64_longjmp (scm_i_jmp_buf *, int); | |
218 | ||
219 | #else | |
220 | /* All other systems just use setjmp and longjmp. */ | |
221 | ||
222 | #define SCM_I_SETJMP setjmp | |
223 | #define SCM_I_LONGJMP longjmp | |
224 | #endif | |
225 | ||
226 | \f | |
227 | ||
4a1ce016 | 228 | #define SCM_ASYNC_TICK_WITH_GUARD_CODE(thr, pre, post) \ |
27c6ebcb AW |
229 | do \ |
230 | { \ | |
231 | if (SCM_UNLIKELY (thr->pending_asyncs)) \ | |
232 | { \ | |
4a1ce016 | 233 | pre; \ |
27c6ebcb | 234 | scm_async_tick (); \ |
4a1ce016 | 235 | post; \ |
27c6ebcb AW |
236 | } \ |
237 | } \ | |
238 | while (0) | |
239 | ||
4a1ce016 AW |
240 | #define SCM_ASYNC_TICK_WITH_CODE(thr, stmt) \ |
241 | SCM_ASYNC_TICK_WITH_GUARD_CODE (thr, stmt, (void) 0) | |
242 | #define SCM_ASYNC_TICK \ | |
243 | SCM_ASYNC_TICK_WITH_CODE (SCM_I_CURRENT_THREAD, (void) 0) | |
244 | ||
27c6ebcb AW |
245 | |
246 | \f | |
04245bb7 | 247 | |
7dbc0349 AW |
248 | #if (defined __GNUC__) |
249 | # define SCM_NOINLINE __attribute__ ((__noinline__)) | |
250 | #else | |
251 | # define SCM_NOINLINE /* noinline */ | |
252 | #endif | |
2b829bbb | 253 | |
4d497b62 AW |
254 | \f |
255 | ||
86cfb42d AW |
256 | /* The endianness marker in objcode. */ |
257 | #ifdef WORDS_BIGENDIAN | |
258 | # define SCM_OBJCODE_ENDIANNESS "BE" | |
259 | #else | |
260 | # define SCM_OBJCODE_ENDIANNESS "LE" | |
261 | #endif | |
262 | ||
263 | #define _SCM_CPP_STRINGIFY(x) # x | |
264 | #define SCM_CPP_STRINGIFY(x) _SCM_CPP_STRINGIFY (x) | |
265 | ||
266 | /* The word size marker in objcode. */ | |
267 | #define SCM_OBJCODE_WORD_SIZE SCM_CPP_STRINGIFY (SIZEOF_VOID_P) | |
268 | ||
aaae0d5a | 269 | /* Major and minor versions must be single characters. */ |
d5a4f51f | 270 | #define SCM_OBJCODE_MAJOR_VERSION 3 |
d38ca16e | 271 | #define SCM_OBJCODE_MINOR_VERSION 6 |
6e5c02b8 AW |
272 | #define SCM_OBJCODE_MAJOR_VERSION_STRING \ |
273 | SCM_CPP_STRINGIFY(SCM_OBJCODE_MAJOR_VERSION) | |
274 | #define SCM_OBJCODE_MINOR_VERSION_STRING \ | |
275 | SCM_CPP_STRINGIFY(SCM_OBJCODE_MINOR_VERSION) | |
276 | #define SCM_OBJCODE_VERSION_STRING \ | |
277 | SCM_OBJCODE_MAJOR_VERSION_STRING "." SCM_OBJCODE_MINOR_VERSION_STRING | |
278 | #define SCM_OBJCODE_MACHINE_VERSION_STRING \ | |
e8ab529d | 279 | SCM_OBJCODE_ENDIANNESS "-" SCM_OBJCODE_WORD_SIZE "-" SCM_OBJCODE_VERSION_STRING |
6e5c02b8 | 280 | |
0527e687 | 281 | #endif /* SCM__SCM_H */ |
89e00824 ML |
282 | |
283 | /* | |
284 | Local Variables: | |
285 | c-file-style: "gnu" | |
286 | End: | |
287 | */ |