diff options
Diffstat (limited to 'libguile/dynl-shl.c')
-rw-r--r-- | libguile/dynl-shl.c | 130 |
1 files changed, 28 insertions, 102 deletions
diff --git a/libguile/dynl-shl.c b/libguile/dynl-shl.c index b8e474484..4612fa9c8 100644 --- a/libguile/dynl-shl.c +++ b/libguile/dynl-shl.c @@ -45,128 +45,54 @@ Author: Aubrey Jaffer Modified for libguile by Marius Vollmer */ -#include "_scm.h" -#include "genio.h" -#include "smob.h" - #include "dl.h" -#define SHL(obj) ((shl_t*)SCM_CDR(obj)) - -static int printshl SCM_P ((SCM exp, SCM port, scm_printstate *pstate)); - -static int -prinshl (exp, port, pstate) - SCM exp; - SCM port; - scm_printstate *pstate; -{ - scm_gen_puts (scm_regular_string, "#<dynamic-linked ", port); - scm_intprint (SCM_CDR (exp), 16, port); - scm_gen_putc ('>', port); - return 1; -} - -int scm_tc16_shl; -static scm_smobfuns shlsmob = { scm_mark0, scm_free0, prinshl }; - -SCM_PROC (s_dynamic_link, "dynamic-link", 1, 0, 0, scm_dynamic_link); - -SCM -scm_dynamic_link (fname) - SCM fname; +static void * +sysdep_dynl_link (fname, subr) + char *fname; + char *subr; { - SCM z; shl_t shl; - fname = scm_coerce_rostring (fname, s_dynamic_link, SCM_ARG1); - - SCM_DEFER_INTS; - shl = shl_load (SCM_CHARS (fname), BIND_DEFERRED , 0L); + shl = shl_load (fname, BIND_DEFERRED , 0L); if (NULL==shl) - scm_misc_error (s_dynamic_link, "dynamic linking failed", SCM_EOL); - SCM_NEWCELL (z); - SCM_SETCHARS (z, shl); - SCM_SETCAR (z, scm_tc16_shl); - SCM_ALLOW_INTS; - - return z; + scm_misc_error (subr, "dynamic linking failed", SCM_EOL); + return shl; } -SCM_PROC (s_dynamic_call, "dynamic-call", 2, 0, 0, scm_dynamic_call); - -SCM -scm_dynamic_call (symb, shl) - SCM symb, shl; +static void +sysdep_dynl_unlink (handle, subr) + void *handle; + char *subr; { - void (*func)() = 0; - int i; - - symb = scm_coerce_rostring (symb, s_dynamic_call, SCM_ARG1); - SCM_ASSERT (SCM_NIMP (shl) && SCM_CAR (shl) == scm_tc16_shl, shl, SCM_ARG2, - s_dynamic_call); - - SCM_DEFER_INTS; - if (shl_findsym (&SHL(shl), SCM_CHARS(symb), TYPE_PROCEDURE, &func)) - scm_misc_error (s_dynamic_call, "undefined function", - scm_cons (symb, SCM_EOL)); - SCM_ALLOW_INTS; - - (*func) (); - return SCM_BOOL_T; -} - -SCM_PROC (s_dynamic_args_call, "dynamic-args-call", 3, 0, 0, scm_dynamic_args_call); - -SCM -scm_dynamic_args_call (symb, shl, args) - SCM symb, shl, args; -{ - int i, argc; - char **argv; - int (*func) SCM_P ((int argc, char **argv)) = 0; - - symb = scm_coerce_rostring (symb, s_dynamic_args_call, SCM_ARG1); - SCM_ASSERT (SCM_NIMP (shl) && SCM_CAR(shl) == scm_tc16_shl, shl, SCM_ARG2, - s_dynamic_args_call); - - SCM_DEFER_INTS; - if (shl_findsym(&SHL(shl), SCM_CHARS(symb), TYPE_PROCEDURE, &func)) - scm_misc_error (s_dynamic_call, "undefined function: %s", - scm_cons (symb, SCM_EOL)); - argv = scm_make_argv_from_stringlist (args, &argc, s_dynamic_args_call, - SCM_ARG3); - SCM_ALLOW_INTS; - - i = (*func) (argc, argv); + int status; SCM_DEFER_INTS; - scm_must_free_argv (argv); + status = shl_unload ((shl_t) handle); SCM_ALLOW_INTS; - return SCM_MAKINUM (0L+i); + if (status) + scm_misc_error (subr, "dynamic unlinking failed", SCM_EOL); } -SCM_PROC (s_dynamic_unlink, "dynamic-unlink", 1, 0, 0, scm_dynamic_unlink); - -SCM -scm_dynamic_unlink (shl) - SCM shl; +static void * +sysdep_dynl_func (symb, handle, subr) + char *symb; + void *handle; + char *subr; { + void (*func)() = NULL; int status; - SCM_ASSERT (SCM_NIMP (shl) && SCM_CAR (shl) == scm_tc16_shl, shl, - SCM_ARG1, s_dynamic_unlink); SCM_DEFER_INTS; - status = shl_unload (SHL (shl)); + status = shl_findsym ((shl_t) handle, symb, TYPE_PROCEDURE, &func); SCM_ALLOW_INTS; - if (!status) - return SCM_BOOL_T; - return SCM_BOOL_F; + if (status) + scm_misc_error (s_dynamic_call, "undefined function", + scm_cons (scm_makfrom0str (symb), SCM_EOL)); + return func; } -void -scm_init_dynamic_linking () +static void +sysdep_dynl_init () { - scm_tc16_shl = scm_newsmob (&shlsmob); -#include "dynl.x" } |