1 /* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2004, 2006, 2009 Free Software Foundation, Inc.
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.
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.
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
21 /* Include the headers for just about everything.
22 We call all their initialization functions. */
33 #include "libguile/_scm.h"
35 /* Everybody has an init function. */
36 #include "libguile/alist.h"
37 #include "libguile/arbiters.h"
38 #include "libguile/async.h"
39 #include "libguile/backtrace.h"
40 #include "libguile/bitvectors.h"
41 #include "libguile/boolean.h"
42 #include "libguile/bytevectors.h"
43 #include "libguile/chars.h"
44 #include "libguile/continuations.h"
45 #include "libguile/debug.h"
46 #ifdef GUILE_DEBUG_MALLOC
47 #include "libguile/debug-malloc.h"
49 #include "libguile/deprecation.h"
50 #include "libguile/dynl.h"
51 #include "libguile/dynwind.h"
53 #include "libguile/environments.h"
55 #include "libguile/eq.h"
56 #include "libguile/error.h"
57 #include "libguile/eval.h"
58 #include "libguile/evalext.h"
59 #include "libguile/feature.h"
60 #include "libguile/filesys.h"
61 #include "libguile/fluids.h"
62 #include "libguile/fports.h"
63 #include "libguile/gc.h"
64 #include "libguile/gdbint.h"
65 #include "libguile/generalized-arrays.h"
66 #include "libguile/generalized-vectors.h"
67 #include "libguile/goops.h"
68 #include "libguile/gsubr.h"
69 #include "libguile/hash.h"
70 #include "libguile/hashtab.h"
71 #include "libguile/hooks.h"
72 #include "libguile/gettext.h"
73 #include "libguile/i18n.h"
74 #include "libguile/iselect.h"
75 #include "libguile/ioext.h"
76 #include "libguile/keywords.h"
77 #include "libguile/lang.h"
78 #include "libguile/list.h"
79 #include "libguile/load.h"
80 #include "libguile/macros.h"
81 #include "libguile/mallocs.h"
82 #include "libguile/modules.h"
83 #include "libguile/net_db.h"
84 #include "libguile/numbers.h"
85 #include "libguile/objprop.h"
86 #include "libguile/options.h"
87 #include "libguile/pairs.h"
88 #include "libguile/ports.h"
89 #include "libguile/posix.h"
91 #include "libguile/regex-posix.h"
93 #include "libguile/print.h"
94 #include "libguile/procprop.h"
95 #include "libguile/procs.h"
96 #include "libguile/properties.h"
97 #include "libguile/array-map.h"
98 #include "libguile/random.h"
99 #include "libguile/rdelim.h"
100 #include "libguile/read.h"
101 #include "libguile/rw.h"
102 #include "libguile/scmsigs.h"
103 #include "libguile/script.h"
104 #include "libguile/simpos.h"
105 #include "libguile/smob.h"
106 #include "libguile/socket.h"
107 #include "libguile/sort.h"
108 #include "libguile/srcprop.h"
109 #include "libguile/stackchk.h"
110 #include "libguile/stacks.h"
111 #include "libguile/stime.h"
112 #include "libguile/strings.h"
113 #include "libguile/srfi-13.h"
114 #include "libguile/srfi-14.h"
115 #include "libguile/strorder.h"
116 #include "libguile/strports.h"
117 #include "libguile/struct.h"
118 #include "libguile/symbols.h"
119 #include "libguile/throw.h"
120 #include "libguile/arrays.h"
121 #include "libguile/trees.h"
122 #include "libguile/values.h"
123 #include "libguile/variable.h"
124 #include "libguile/vectors.h"
125 #include "libguile/version.h"
126 #include "libguile/vm-bootstrap.h"
127 #include "libguile/vports.h"
128 #include "libguile/weaks.h"
129 #include "libguile/guardians.h"
130 #include "libguile/extensions.h"
131 #include "libguile/uniform.h"
132 #include "libguile/srfi-4.h"
133 #include "libguile/discouraged.h"
134 #include "libguile/deprecated.h"
136 #include "libguile/init.h"
137 #include "libguile/private-options.h"
149 static char remsg
[] = "remove\n#define ", addmsg
[] = "add\n#define ";
153 fixconfig (char *s1
, char *s2
, int s
)
157 fputs ("\nin ", stderr
);
158 fputs (s
? "setjump" : "scmfig", stderr
);
159 fputs (".h and recompile scm\n", stderr
);
170 if (HEAP_SEG_SIZE
!= j
)
171 fixconfig ("reduce", "size of HEAP_SEG_SIZE", 0);
173 #if SCM_STACK_GROWS_UP
174 if (((SCM_STACKITEM
*) & j
- stack_start_ptr
) < 0)
175 fixconfig (remsg
, "SCM_STACK_GROWS_UP", 1);
177 if ((stack_start_ptr
- (SCM_STACKITEM
*) & j
) < 0)
178 fixconfig (addmsg
, "SCM_STACK_GROWS_UP", 1);
185 /* initializing standard and current I/O ports */
194 /* proc to be called in scope of exception handler stream_handler. */
196 stream_body (void *data
)
198 stream_body_data
*body_data
= (stream_body_data
*) data
;
199 SCM port
= scm_fdes_to_port (body_data
->fdes
, body_data
->mode
,
200 scm_from_locale_string (body_data
->name
));
202 SCM_REVEALED (port
) = 1;
206 /* exception handler for stream_body. */
208 stream_handler (void *data SCM_UNUSED
,
210 SCM throw_args SCM_UNUSED
)
215 /* Convert a file descriptor to a port, using scm_fdes_to_port.
216 - NAME is a C string, not a Guile string
217 - set the revealed count for FILE's file descriptor to 1, so
218 that fdes won't be closed when the port object is GC'd.
219 - catch exceptions: allow Guile to be able to start up even
220 if it has been handed bogus stdin/stdout/stderr. replace the
221 bad ports with void ports. */
223 scm_standard_stream_to_port (int fdes
, char *mode
, char *name
)
226 stream_body_data body_data
;
228 body_data
.fdes
= fdes
;
229 body_data
.mode
= mode
;
230 body_data
.name
= name
;
231 port
= scm_internal_catch (SCM_BOOL_T
, stream_body
, &body_data
,
232 stream_handler
, NULL
);
233 if (scm_is_false (port
))
234 port
= scm_void_port (mode
);
238 /* Create standard ports from stdin, stdout, and stderr. */
240 scm_init_standard_ports ()
242 /* From the SCSH manual:
244 It can be useful to turn I/O buffering off in some cases, for
245 example when an I/O stream is to be shared by multiple
246 subprocesses. For this reason, scsh allocates an unbuffered port
247 for file descriptor 0 at start-up time.
249 Because shells frequently share stdin with subprocesses, if the
250 shell does buffered reads, it might ``steal'' input intended for
251 a subprocess. For this reason, all shells, including sh, csh,
252 and scsh, read stdin unbuffered. Applications that can tolerate
253 buffered input on stdin can reset \ex{(current-input-port)} to
254 block buffering for higher performance. */
256 scm_set_current_input_port
257 (scm_standard_stream_to_port (0,
258 isatty (0) ? "r0" : "r",
260 scm_set_current_output_port
261 (scm_standard_stream_to_port (1,
262 isatty (1) ? "w0" : "w",
264 scm_set_current_error_port
265 (scm_standard_stream_to_port (2,
266 isatty (2) ? "w0" : "w",
272 /* Loading the startup Scheme files. */
274 /* The boot code "ice-9/boot-9" is only loaded by scm_boot_guile when
275 this is false. The unexec code uses this, to keep ice_9 from being
276 loaded into dumped guile executables. */
277 int scm_ice_9_already_loaded
= 0;
280 scm_load_startup_files ()
282 /* We want a path only containing directories from GUILE_LOAD_PATH,
283 SCM_SITE_DIR and SCM_LIBRARY_DIR when searching for the site init
284 file, so we do this before loading Ice-9. */
286 scm_sys_search_load_path (scm_from_locale_string ("init.scm"));
289 if (!scm_ice_9_already_loaded
)
291 scm_c_primitive_load_path ("ice-9/boot-9");
293 /* Load the init.scm file. */
294 if (scm_is_true (init_path
))
295 scm_primitive_load (init_path
);
300 /* The main init code. */
303 typedef int setjmp_type
;
305 typedef long setjmp_type
;
308 /* All the data needed to invoke the main function. */
309 struct main_func_closure
311 /* the function to call */
312 void (*main_func
)(void *closure
, int argc
, char **argv
);
313 void *closure
; /* dummy data to pass it */
315 char **argv
; /* the argument list it should receive */
318 static void *invoke_main_func(void *body_data
);
321 /* Fire up the Guile Scheme interpreter.
323 Call MAIN_FUNC, passing it CLOSURE, ARGC, and ARGV. MAIN_FUNC
324 should do all the work of the program (initializing other packages,
325 reading user input, etc.) before returning. When MAIN_FUNC
326 returns, call exit (0); this function never returns. If you want
327 some other exit value, MAIN_FUNC may call exit itself.
329 scm_boot_guile arranges for program-arguments to return the strings
330 given by ARGC and ARGV. If MAIN_FUNC modifies ARGC/ARGV, should
331 call scm_set_program_arguments with the final list, so Scheme code
332 will know which arguments have been processed.
334 scm_boot_guile establishes a catch-all catch handler which prints
335 an error message and exits the process. This means that Guile
336 exits in a coherent way when system errors occur and the user isn't
337 prepared to handle it. If the user doesn't like this behavior,
338 they can establish their own universal catcher to shadow this one.
340 Why must the caller do all the real work from MAIN_FUNC? The
341 garbage collector assumes that all local variables of type SCM will
342 be above scm_boot_guile's stack frame on the stack. If you try to
343 manipulate SCM values after this function returns, it's the luck of
344 the draw whether the GC will be able to find the objects you
345 allocate. So, scm_boot_guile function exits, rather than
346 returning, to discourage people from making that mistake. */
350 scm_boot_guile (int argc
, char ** argv
, void (*main_func
) (), void *closure
)
353 struct main_func_closure c
;
355 c
.main_func
= main_func
;
360 res
= scm_with_guile (invoke_main_func
, &c
);
362 /* If the caller doesn't want this, they should exit from main_func
372 invoke_main_func (void *body_data
)
374 struct main_func_closure
*closure
= (struct main_func_closure
*) body_data
;
376 scm_set_program_arguments (closure
->argc
, closure
->argv
, 0);
377 (*closure
->main_func
) (closure
->closure
, closure
->argc
, closure
->argv
);
379 scm_restore_signals ();
381 /* This tick gives any pending
382 * asyncs a chance to run. This must be done after
383 * the call to scm_restore_signals.
387 /* Indicate success by returning non-NULL.
392 scm_i_pthread_mutex_t scm_i_init_mutex
= SCM_I_PTHREAD_MUTEX_INITIALIZER
;
393 int scm_initialized_p
= 0;
396 really_cleanup_for_exit (void *unused
)
398 scm_flush_all_ports ();
405 if (scm_i_pthread_mutex_trylock (&scm_i_init_mutex
) == 0)
406 scm_i_pthread_mutex_unlock (&scm_i_init_mutex
);
409 fprintf (stderr
, "Cannot exit gracefully when init is in progress; aborting.\n");
413 /* This function might be called in non-guile mode, so we need to
414 enter it temporarily.
416 scm_with_guile (really_cleanup_for_exit
, NULL
);
420 scm_i_init_guile (SCM_STACKITEM
*base
)
422 if (scm_initialized_p
)
427 fprintf (stderr
, "cannot determine stack base!\n");
431 if (sizeof (mpz_t
) > (3 * sizeof (scm_t_bits
)))
434 "GMP's mpz_t must fit into a double_cell,"
435 "but doesn't seem to here.\n");
438 scm_storage_prehistory ();
439 scm_threads_prehistory (base
);
440 scm_ports_prehistory ();
441 scm_smob_prehistory ();
442 scm_fluids_prehistory ();
443 scm_weaks_prehistory ();
444 scm_hashtab_prehistory (); /* requires storage_prehistory, and
446 #ifdef GUILE_DEBUG_MALLOC
447 scm_debug_malloc_prehistory ();
449 if (scm_init_storage ()) /* requires threads_prehistory,
451 hashtab_prehistory */
454 scm_struct_prehistory (); /* requires storage */
455 scm_symbols_prehistory (); /* requires storage */
457 scm_environments_prehistory (); /* requires storage */
459 scm_modules_prehistory (); /* requires storage and hash tables */
460 scm_init_variable (); /* all bindings need variables */
461 scm_init_continuations ();
462 scm_init_root (); /* requires continuations */
463 scm_init_threads (); /* requires fluids */
465 scm_init_thread_procs (); /* requires gsubrs */
466 scm_init_procprop ();
468 scm_init_environments ();
471 scm_init_arbiters ();
475 #ifdef GUILE_DEBUG_MALLOC
476 scm_init_debug_malloc ();
482 scm_init_feature (); /* Requires fluids */
483 scm_init_backtrace (); /* Requires fluids */
485 scm_init_strports ();
487 scm_init_gdbint (); /* Requires strports */
490 scm_init_deprecation (); /* Requires hashtabs */
492 scm_init_properties ();
493 scm_init_hooks (); /* Requires smob_prehistory */
494 scm_init_gc (); /* Requires hooks, async */
497 scm_init_keywords ();
510 scm_init_regex_posix ();
514 #ifdef HAVE_NETWORKING
520 scm_init_stackchk ();
522 scm_init_array_handle ();
523 scm_init_generalized_arrays ();
524 scm_init_generalized_vectors ();
527 scm_init_bitvectors ();
528 scm_bootstrap_bytevectors ();
531 scm_init_array_map ();
533 scm_init_strings (); /* Requires array-handle */
534 scm_init_struct (); /* Requires strings */
535 scm_init_stacks (); /* Requires strings, struct */
537 scm_init_values (); /* Requires struct */
538 scm_init_load (); /* Requires strings */
539 scm_init_print (); /* Requires strings, struct */
542 scm_init_strorder ();
549 scm_init_guardians ();
553 scm_init_debug (); /* Requires macro smobs */
556 scm_init_load_path ();
557 scm_init_standard_ports (); /* Requires fports */
558 scm_init_dynamic_linking ();
559 scm_bootstrap_i18n ();
562 #endif /* SCM_ENABLE_ELISP */
567 #if SCM_ENABLE_DISCOURAGED == 1
568 scm_i_init_discouraged ();
571 #if SCM_ENABLE_DEPRECATED == 1
572 scm_i_init_deprecated ();
575 scm_init_threads_default_dynamic_state ();
577 scm_initialized_p
= 1;
579 #ifdef STACK_CHECKING
580 scm_stack_checking_enabled_p
= SCM_STACK_CHECKING_P
;
585 scm_init_extensions ();
589 atexit (cleanup_for_exit
);
590 scm_load_startup_files ();