1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 2003-2013 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Eclipse Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.eclipse.org/org/documents/epl-v10.html * 11 * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <glenn.s.fowler@gmail.com> * 18 * * 19 ***********************************************************************/ 20 #pragma prototyped 21 22 /* 23 * return the next codex method 24 * call with meth==0 to get the first method 25 * plugins are included in the list 26 */ 27 28 #include <codex.h> 29 #include <dlldefs.h> 30 31 Codexmeth_t* codexlist(Codexmeth_t * meth)32codexlist(Codexmeth_t* meth) 33 { 34 register Codexmeth_t* lp; 35 Codexmeth_t* np; 36 Dllscan_t* dls; 37 Dllent_t* dle; 38 void* dll; 39 Codexlib_f lib; 40 41 if (!meth) 42 return codexstate.first; 43 if (!meth->next && !codexstate.scanned) 44 { 45 codexstate.scanned = 1; 46 lp = meth; 47 if (dls = dllsopen(codexstate.id, NiL, NiL)) 48 { 49 while (dle = dllsread(dls)) 50 if (dll = dlopen(dle->path, RTLD_LAZY)) 51 { 52 /* vcodex check works around obsolete vcodex<=>codex plugin */ 53 if ((lib = (Codexlib_f)dlllook(dll, "codex_lib")) && (np = (*lib)(dle->name)) && !streq(np->name, "vcodex")) 54 for (lp = lp->next = np; lp->next; lp = lp->next); 55 else 56 dlclose(dll); 57 } 58 else 59 message((-1, "%s: %s", dle->path, dlerror())); 60 dllsclose(dls); 61 } 62 } 63 return meth->next; 64 } 65