* Currently this file is simply #included into dl_*.xs/.c files.
* It should really be split into a dlutils.h and dlutils.c
*
+ * Modified:
+ * 29th Feburary 2000 - Alan Burlison: Added functionality to close dlopen'd
+ * files when the interpreter exits
*/
/* pointer to allocated memory for last error message */
static char *LastError = (char*)NULL;
+/* flag for immediate rather than lazy linking (spots unresolved symbol) */
+static int dl_nonlazy = 0;
+
+#ifdef DL_LOADONCEONLY
+static HV *dl_loaded_files = Nullhv; /* only needed on a few systems */
+#endif
#ifdef DEBUGGING
-/* currently not connected to $DynaLoader::dl_error but should be */
-static int dl_debug = 0;
-#define DLDEBUG(level,code) if(dl_debug>=level){ code; }
+static int dl_debug = 0; /* value copied from $DynaLoader::dl_debug */
+#define DLDEBUG(level,code) if (dl_debug>=level) { code; }
#else
#define DLDEBUG(level,code)
#endif
+/* Close all dlopen'd files */
static void
-dl_generic_private_init() /* called by dl_*.xs dl_private_init() */
+dl_unload_all_files(pTHXo_ void *unused)
{
+ CV *sub;
+ AV *dl_librefs;
+ SV *dl_libref;
+
+ if ((sub = get_cv("DynaLoader::dl_unload_file", FALSE)) != NULL) {
+ dl_librefs = get_av("DynaLoader::dl_librefs", FALSE);
+ while ((dl_libref = av_pop(dl_librefs)) != &PL_sv_undef) {
+ dSP;
+ ENTER;
+ SAVETMPS;
+ PUSHMARK(SP);
+ XPUSHs(sv_2mortal(dl_libref));
+ PUTBACK;
+ call_sv((SV*)sub, G_DISCARD | G_NODEBUG);
+ FREETMPS;
+ LEAVE;
+ }
+ }
+}
+
+
+static void
+dl_generic_private_init(pTHXo) /* called by dl_*.xs dl_private_init() */
+{
+ char *perl_dl_nonlazy;
#ifdef DEBUGGING
- char *perl_dl_debug = getenv("PERL_DL_DEBUG");
- if (perl_dl_debug)
- dl_debug = atoi(perl_dl_debug);
+ SV *sv = get_sv("DynaLoader::dl_debug", 0);
+ dl_debug = sv ? SvIV(sv) : 0;
+#endif
+ if ( (perl_dl_nonlazy = getenv("PERL_DL_NONLAZY")) != NULL )
+ dl_nonlazy = atoi(perl_dl_nonlazy);
+ if (dl_nonlazy)
+ DLDEBUG(1,PerlIO_printf(Perl_debug_log, "DynaLoader bind mode is 'non-lazy'\n"));
+#ifdef DL_LOADONCEONLY
+ if (!dl_loaded_files)
+ dl_loaded_files = newHV(); /* provide cache for dl_*.xs if needed */
+#endif
+#ifdef DL_UNLOAD_ALL_AT_EXIT
+ call_atexit(&dl_unload_all_files, (void*)0);
#endif
}
/* SaveError() takes printf style args and saves the result in LastError */
-#ifdef STANDARD_C
static void
-SaveError(char* pat, ...)
-#else
-/*VARARGS0*/
-static void
-SaveError(pat, va_alist)
- char *pat;
- va_dcl
-#endif
+SaveError(pTHXo_ char* pat, ...)
{
va_list args;
+ SV *msv;
char *message;
- int len;
+ STRLEN len;
- /* This code is based on croak/warn but I'm not sure where mess() */
- /* gets its buffer space from! */
+ /* This code is based on croak/warn, see mess() in util.c */
-#ifdef I_STDARG
va_start(args, pat);
-#else
- va_start(args);
-#endif
- message = mess(pat, &args);
+ msv = vmess(pat, &args);
va_end(args);
- len = strlen(message) + 1 ; /* include terminating null char */
+ message = SvPV(msv,len);
+ len++; /* include terminating null char */
/* Allocate some memory for the error message */
if (LastError)
LastError = (char*)saferealloc(LastError, len) ;
else
- LastError = safemalloc(len) ;
+ LastError = (char *) safemalloc(len) ;
/* Copy message into LastError (including terminating null char) */
strncpy(LastError, message, len) ;
- DLDEBUG(2,fprintf(stderr,"DynaLoader: stored error msg '%s'\n",LastError));
-}
-
-
-/* prepend underscore to s. write into buf. return buf. */
-char *
-dl_add_underscore(s, buf)
-char *s;
-char *buf;
-{
- *buf = '_';
- (void)strcpy(buf + 1, s);
- return buf;
+ DLDEBUG(2,PerlIO_printf(Perl_debug_log, "DynaLoader: stored error msg '%s'\n",LastError));
}