X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=guile18%2Flibguile%2Finit.c;fp=guile18%2Flibguile%2Finit.c;h=2ce4b69009836beb1b65624a717996d30e0234ae;hb=139c38d9204dd07f6b235f83bae644faedbc63fd;hp=0000000000000000000000000000000000000000;hpb=652ed35a2013489d0a14fede6307cd2595abb2c4;p=lilypond.git diff --git a/guile18/libguile/init.c b/guile18/libguile/init.c new file mode 100644 index 0000000000..2ce4b69009 --- /dev/null +++ b/guile18/libguile/init.c @@ -0,0 +1,568 @@ +/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2004, 2006 Free Software Foundation, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + + + +/* Include the headers for just about everything. + We call all their initialization functions. */ + +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include +#include +#include + +#include "libguile/_scm.h" + +/* Everybody has an init function. */ +#include "libguile/alist.h" +#include "libguile/arbiters.h" +#include "libguile/async.h" +#include "libguile/backtrace.h" +#include "libguile/boolean.h" +#include "libguile/chars.h" +#include "libguile/continuations.h" +#include "libguile/debug.h" +#ifdef GUILE_DEBUG_MALLOC +#include "libguile/debug-malloc.h" +#endif +#include "libguile/deprecation.h" +#include "libguile/dynl.h" +#include "libguile/dynwind.h" +#include "libguile/environments.h" +#include "libguile/eq.h" +#include "libguile/error.h" +#include "libguile/eval.h" +#include "libguile/evalext.h" +#include "libguile/feature.h" +#include "libguile/filesys.h" +#include "libguile/fluids.h" +#include "libguile/fports.h" +#include "libguile/futures.h" +#include "libguile/gc.h" +#include "libguile/gdbint.h" +#include "libguile/goops.h" +#include "libguile/gsubr.h" +#include "libguile/hash.h" +#include "libguile/hashtab.h" +#include "libguile/hooks.h" +#include "libguile/i18n.h" +#include "libguile/iselect.h" +#include "libguile/ioext.h" +#include "libguile/keywords.h" +#include "libguile/lang.h" +#include "libguile/list.h" +#include "libguile/load.h" +#include "libguile/macros.h" +#include "libguile/mallocs.h" +#include "libguile/modules.h" +#include "libguile/net_db.h" +#include "libguile/numbers.h" +#include "libguile/objects.h" +#include "libguile/objprop.h" +#include "libguile/options.h" +#include "libguile/pairs.h" +#include "libguile/ports.h" +#include "libguile/posix.h" +#ifdef HAVE_REGCOMP +#include "libguile/regex-posix.h" +#endif +#include "libguile/print.h" +#include "libguile/procprop.h" +#include "libguile/procs.h" +#include "libguile/properties.h" +#include "libguile/ramap.h" +#include "libguile/random.h" +#include "libguile/rdelim.h" +#include "libguile/read.h" +#include "libguile/rw.h" +#include "libguile/scmsigs.h" +#include "libguile/script.h" +#include "libguile/simpos.h" +#include "libguile/smob.h" +#include "libguile/socket.h" +#include "libguile/sort.h" +#include "libguile/srcprop.h" +#include "libguile/stackchk.h" +#include "libguile/stacks.h" +#include "libguile/stime.h" +#include "libguile/strings.h" +#include "libguile/srfi-13.h" +#include "libguile/srfi-14.h" +#include "libguile/strorder.h" +#include "libguile/strports.h" +#include "libguile/struct.h" +#include "libguile/symbols.h" +#include "libguile/throw.h" +#include "libguile/unif.h" +#include "libguile/values.h" +#include "libguile/variable.h" +#include "libguile/vectors.h" +#include "libguile/version.h" +#include "libguile/vports.h" +#include "libguile/weaks.h" +#include "libguile/guardians.h" +#include "libguile/extensions.h" +#include "libguile/srfi-4.h" +#include "libguile/discouraged.h" +#include "libguile/deprecated.h" + +#include "libguile/init.h" + +#ifdef HAVE_STRING_H +#include +#endif +#ifdef HAVE_UNISTD_H +#include +#endif + + + +#if 0 +static char remsg[] = "remove\n#define ", addmsg[] = "add\n#define "; + + +static void +fixconfig (char *s1, char *s2, int s) +{ + fputs (s1, stderr); + fputs (s2, stderr); + fputs ("\nin ", stderr); + fputs (s ? "setjump" : "scmfig", stderr); + fputs (".h and recompile scm\n", stderr); + exit (1); +} + + +static void +check_config (void) +{ + size_t j; + + j = HEAP_SEG_SIZE; + if (HEAP_SEG_SIZE != j) + fixconfig ("reduce", "size of HEAP_SEG_SIZE", 0); + +#if SCM_STACK_GROWS_UP + if (((SCM_STACKITEM *) & j - stack_start_ptr) < 0) + fixconfig (remsg, "SCM_STACK_GROWS_UP", 1); +#else + if ((stack_start_ptr - (SCM_STACKITEM *) & j) < 0) + fixconfig (addmsg, "SCM_STACK_GROWS_UP", 1); +#endif +} +#endif + + + +/* initializing standard and current I/O ports */ + +typedef struct +{ + int fdes; + char *mode; + char *name; +} stream_body_data; + +/* proc to be called in scope of exception handler stream_handler. */ +static SCM +stream_body (void *data) +{ + stream_body_data *body_data = (stream_body_data *) data; + SCM port = scm_fdes_to_port (body_data->fdes, body_data->mode, + scm_from_locale_string (body_data->name)); + + SCM_REVEALED (port) = 1; + return port; +} + +/* exception handler for stream_body. */ +static SCM +stream_handler (void *data SCM_UNUSED, + SCM tag SCM_UNUSED, + SCM throw_args SCM_UNUSED) +{ + return SCM_BOOL_F; +} + +/* Convert a file descriptor to a port, using scm_fdes_to_port. + - NAME is a C string, not a Guile string + - set the revealed count for FILE's file descriptor to 1, so + that fdes won't be closed when the port object is GC'd. + - catch exceptions: allow Guile to be able to start up even + if it has been handed bogus stdin/stdout/stderr. replace the + bad ports with void ports. */ +static SCM +scm_standard_stream_to_port (int fdes, char *mode, char *name) +{ + SCM port; + stream_body_data body_data; + + body_data.fdes = fdes; + body_data.mode = mode; + body_data.name = name; + port = scm_internal_catch (SCM_BOOL_T, stream_body, &body_data, + stream_handler, NULL); + if (scm_is_false (port)) + port = scm_void_port (mode); + return port; +} + +/* Create standard ports from stdin, stdout, and stderr. */ +static void +scm_init_standard_ports () +{ + /* From the SCSH manual: + + It can be useful to turn I/O buffering off in some cases, for + example when an I/O stream is to be shared by multiple + subprocesses. For this reason, scsh allocates an unbuffered port + for file descriptor 0 at start-up time. + + Because shells frequently share stdin with subprocesses, if the + shell does buffered reads, it might ``steal'' input intended for + a subprocess. For this reason, all shells, including sh, csh, + and scsh, read stdin unbuffered. Applications that can tolerate + buffered input on stdin can reset \ex{(current-input-port)} to + block buffering for higher performance. */ + + scm_set_current_input_port + (scm_standard_stream_to_port (0, + isatty (0) ? "r0" : "r", + "standard input")); + scm_set_current_output_port + (scm_standard_stream_to_port (1, + isatty (1) ? "w0" : "w", + "standard output")); + scm_set_current_error_port + (scm_standard_stream_to_port (2, + isatty (2) ? "w0" : "w", + "standard error")); +} + + + +/* Loading the startup Scheme files. */ + +/* The boot code "ice-9/boot-9" is only loaded by scm_boot_guile when + this is false. The unexec code uses this, to keep ice_9 from being + loaded into dumped guile executables. */ +int scm_ice_9_already_loaded = 0; + +void +scm_load_startup_files () +{ + /* We want a path only containing directories from GUILE_LOAD_PATH, + SCM_SITE_DIR and SCM_LIBRARY_DIR when searching for the site init + file, so we do this before loading Ice-9. */ + SCM init_path = + scm_sys_search_load_path (scm_from_locale_string ("init.scm")); + + /* Load Ice-9. */ + if (!scm_ice_9_already_loaded) + { + scm_primitive_load_path (scm_from_locale_string ("ice-9/boot-9.scm")); + + /* Load the init.scm file. */ + if (scm_is_true (init_path)) + scm_primitive_load (init_path); + } +} + + +/* The main init code. */ + +#ifdef _UNICOS +typedef int setjmp_type; +#else +typedef long setjmp_type; +#endif + +/* All the data needed to invoke the main function. */ +struct main_func_closure +{ + /* the function to call */ + void (*main_func)(void *closure, int argc, char **argv); + void *closure; /* dummy data to pass it */ + int argc; + char **argv; /* the argument list it should receive */ +}; + +static void *invoke_main_func(void *body_data); + + +/* Fire up the Guile Scheme interpreter. + + Call MAIN_FUNC, passing it CLOSURE, ARGC, and ARGV. MAIN_FUNC + should do all the work of the program (initializing other packages, + reading user input, etc.) before returning. When MAIN_FUNC + returns, call exit (0); this function never returns. If you want + some other exit value, MAIN_FUNC may call exit itself. + + scm_boot_guile arranges for program-arguments to return the strings + given by ARGC and ARGV. If MAIN_FUNC modifies ARGC/ARGV, should + call scm_set_program_arguments with the final list, so Scheme code + will know which arguments have been processed. + + scm_boot_guile establishes a catch-all catch handler which prints + an error message and exits the process. This means that Guile + exits in a coherent way when system errors occur and the user isn't + prepared to handle it. If the user doesn't like this behavior, + they can establish their own universal catcher to shadow this one. + + Why must the caller do all the real work from MAIN_FUNC? The + garbage collector assumes that all local variables of type SCM will + be above scm_boot_guile's stack frame on the stack. If you try to + manipulate SCM values after this function returns, it's the luck of + the draw whether the GC will be able to find the objects you + allocate. So, scm_boot_guile function exits, rather than + returning, to discourage people from making that mistake. */ + + +void +scm_boot_guile (int argc, char ** argv, void (*main_func) (), void *closure) +{ + void *res; + struct main_func_closure c; + + c.main_func = main_func; + c.closure = closure; + c.argc = argc; + c.argv = argv; + + res = scm_with_guile (invoke_main_func, &c); + + /* If the caller doesn't want this, they should exit from main_func + themselves. + */ + if (res == NULL) + exit (EXIT_FAILURE); + else + exit (0); +} + +static void * +invoke_main_func (void *body_data) +{ + struct main_func_closure *closure = (struct main_func_closure *) body_data; + + scm_set_program_arguments (closure->argc, closure->argv, 0); + (*closure->main_func) (closure->closure, closure->argc, closure->argv); + + scm_restore_signals (); + + /* This tick gives any pending + * asyncs a chance to run. This must be done after + * the call to scm_restore_signals. + */ + SCM_ASYNC_TICK; + + /* Indicate success by returning non-NULL. + */ + return (void *)1; +} + +scm_i_pthread_mutex_t scm_i_init_mutex = SCM_I_PTHREAD_MUTEX_INITIALIZER; +int scm_initialized_p = 0; + +static void * +really_cleanup_for_exit (void *unused) +{ + scm_flush_all_ports (); + return NULL; +} + +static void +cleanup_for_exit () +{ + /* This function might be called in non-guile mode, so we need to + enter it temporarily. + */ + scm_with_guile (really_cleanup_for_exit, NULL); +} + +void +scm_i_init_guile (SCM_STACKITEM *base) +{ + if (scm_initialized_p) + return; + + if (base == NULL) + { + fprintf (stderr, "cannot determine stack base!\n"); + abort (); + } + + if (sizeof (mpz_t) > (3 * sizeof (scm_t_bits))) + { + fprintf (stderr, + "GMP's mpz_t must fit into a double_cell," + "but doesn't seem to here.\n"); + } + + scm_storage_prehistory (); + scm_threads_prehistory (base); + scm_ports_prehistory (); + scm_smob_prehistory (); + scm_fluids_prehistory (); + scm_hashtab_prehistory (); /* requires storage_prehistory */ +#ifdef GUILE_DEBUG_MALLOC + scm_debug_malloc_prehistory (); +#endif + if (scm_init_storage ()) /* requires threads_prehistory, + smob_prehistory and + hashtab_prehistory */ + abort (); + + scm_struct_prehistory (); /* requires storage */ + scm_symbols_prehistory (); /* requires storage */ + scm_init_subr_table (); + scm_environments_prehistory (); /* requires storage */ + scm_modules_prehistory (); /* requires storage and hash tables */ + scm_init_variable (); /* all bindings need variables */ + scm_init_continuations (); + scm_init_root (); /* requires continuations */ + scm_init_threads (); /* requires fluids */ + scm_init_gsubr (); + scm_init_thread_procs (); /* requires gsubrs */ + scm_init_procprop (); + scm_init_environments (); + scm_init_alist (); + scm_init_arbiters (); + scm_init_async (); + scm_init_boolean (); + scm_init_chars (); +#ifdef GUILE_DEBUG_MALLOC + scm_init_debug_malloc (); +#endif + scm_init_dynwind (); + scm_init_eq (); + scm_init_error (); +#if 0 + /* See futures.h for a comment why futures are not enabled. + */ + scm_init_futures (); +#endif + scm_init_fluids (); + scm_init_feature (); /* Requires fluids */ + scm_init_backtrace (); /* Requires fluids */ + scm_init_fports (); + scm_init_strports (); + scm_init_gdbint (); /* Requires strports */ + scm_init_hash (); + scm_init_hashtab (); + scm_init_deprecation (); /* Requires hashtabs */ + scm_init_objprop (); + scm_init_properties (); + scm_init_hooks (); /* Requires smob_prehistory */ + scm_init_gc (); /* Requires hooks, async */ + scm_init_i18n (); + scm_init_ioext (); + scm_init_keywords (); + scm_init_list (); + scm_init_macros (); + scm_init_mallocs (); + scm_init_modules (); + scm_init_numbers (); + scm_init_options (); + scm_init_pairs (); + scm_init_ports (); +#ifdef HAVE_POSIX + scm_init_filesys (); + scm_init_posix (); +#endif +#ifdef HAVE_REGCOMP + scm_init_regex_posix (); +#endif + scm_init_procs (); + scm_init_scmsigs (); +#ifdef HAVE_NETWORKING + scm_init_net_db (); + scm_init_socket (); +#endif + scm_init_sort (); + scm_init_srcprop (); + scm_init_stackchk (); + scm_init_strings (); + scm_init_struct (); /* Requires strings */ + scm_init_stacks (); /* Requires strings, struct */ + scm_init_symbols (); + scm_init_values (); /* Requires struct */ + scm_init_load (); /* Requires strings */ + scm_init_objects (); /* Requires struct */ + scm_init_print (); /* Requires strings, struct */ + scm_init_read (); + scm_init_stime (); + scm_init_strorder (); + scm_init_srfi_13 (); + scm_init_srfi_14 (); + scm_init_throw (); + scm_init_vectors (); + scm_init_version (); + scm_init_weaks (); + scm_init_guardians (); + scm_init_vports (); + scm_init_eval (); + scm_init_evalext (); + scm_init_debug (); /* Requires macro smobs */ + scm_init_random (); + scm_init_ramap (); + scm_init_unif (); + scm_init_simpos (); + scm_init_load_path (); + scm_init_standard_ports (); /* Requires fports */ + scm_init_dynamic_linking (); +#if SCM_ENABLE_ELISP + scm_init_lang (); +#endif /* SCM_ENABLE_ELISP */ + scm_init_script (); + scm_init_srfi_4 (); + + scm_init_goops (); + +#if SCM_ENABLE_DISCOURAGED == 1 + scm_i_init_discouraged (); +#endif + +#if SCM_ENABLE_DEPRECATED == 1 + scm_i_init_deprecated (); +#endif + + scm_init_threads_default_dynamic_state (); + + scm_initialized_p = 1; + +#ifdef STACK_CHECKING + scm_stack_checking_enabled_p = SCM_STACK_CHECKING_P; +#endif + + scm_init_rdelim (); + scm_init_rw (); + scm_init_extensions (); + + atexit (cleanup_for_exit); + scm_load_startup_files (); +} + +/* + Local Variables: + c-file-style: "gnu" + End: +*/