diff options
Diffstat (limited to 'desiredata/src/s_loader.c')
| -rw-r--r-- | desiredata/src/s_loader.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/desiredata/src/s_loader.c b/desiredata/src/s_loader.c deleted file mode 100644 index 2754069b..00000000 --- a/desiredata/src/s_loader.c +++ /dev/null @@ -1,183 +0,0 @@ -/* Copyright (c) 1997-1999 Miller Puckette. -* For information on usage and redistribution, and for a DISCLAIMER OF ALL -* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ - -#ifdef DL_OPEN -#include <dlfcn.h> -#endif -#ifdef UNISTD -#include <stdlib.h> -#include <unistd.h> -#endif -#ifdef MSW -#include <io.h> -#include <windows.h> -#endif -#ifdef __APPLE__ -#include <mach-o/dyld.h> -#endif -#include <string.h> -#define PD_PLUSPLUS_FACE -#include "desire.h" -using namespace desire; -#include <stdio.h> -#include <sstream> -using namespace std; - -typedef void (*t_xxx)(); - -/* naming convention for externs. The names are kept distinct for those -who wich to make "fat" externs compiled for many platforms. Less specific -fallbacks are provided, primarily for back-compatibility; these suffice if -you are building a package which will run with a single set of compiled -objects. The specific name is the letter b, l, d, or m for BSD, linux, -darwin, or microsoft, followed by a more specific string, either "fat" for -a fat binary or an indication of the instruction set. */ - -#ifdef __FreeBSD__ -static char sys_dllextent[] = ".b_i386", sys_dllextent2[] = ".pd_freebsd"; -#endif -#ifdef __linux__ -#ifdef __ia64__ -static char sys_dllextent[] = ".l_ia64", sys_dllextent2[] = ".pd_linux"; -#else -static char sys_dllextent[] = ".l_i386", sys_dllextent2[] = ".pd_linux"; -#endif -#endif -#ifdef __APPLE__ -#ifndef MACOSX3 -static char sys_dllextent[] = ".d_fat", sys_dllextent2[] = ".pd_darwin"; -#else -static char sys_dllextent[] = ".d_ppc", sys_dllextent2[] = ".pd_darwin"; -#endif -#endif -#ifdef MSW -static char sys_dllextent[] = ".m_i386", sys_dllextent2[] = ".dll"; -#endif - -/* maintain list of loaded modules to avoid repeating loads */ -struct t_loadlist { - t_loadlist *ll_next; - t_symbol *ll_name; -}; - -static t_loadlist *sys_loaded; -/* return true if already loaded */ -int sys_onloadlist(char *classname) { - t_symbol *s = gensym(classname); - t_loadlist *ll; - for (ll = sys_loaded; ll; ll = ll->ll_next) - if (ll->ll_name == s) - return 1; - return 0; -} - -/* add to list of loaded modules */ -void sys_putonloadlist(char *classname) { - t_loadlist *ll = (t_loadlist *)getbytes(sizeof(*ll)); - ll->ll_name = gensym(classname); - ll->ll_next = sys_loaded; - sys_loaded = ll; - /* post("put on list %s", classname); */ -} - -static char *make_setup_name(const char *s) { - bool hexmunge=0; - ostringstream buf; - for (; *s; s++) { - char c = *s; - if ((c>='0' && c<='9') || (c>='A' && c<='Z') || (c>='a' && c<='z' )|| c == '_') { - buf << c; - } else if (c=='~' && s[1]==0) { /* trailing tilde becomes "_tilde" */ - buf << "_tilde"; - } else { /* anything you can't put in a C symbol is sprintf'ed in hex */ - // load_object: symbol "setup_0xbf861ee4" not found - oprintf(buf,"0x%02x",c); - hexmunge = 1; - } - } - char *r; - if (hexmunge) asprintf(&r,"setup_%s",buf.str().data()); - else asprintf(&r,"%s_setup",buf.str().data()); - return r; -} - -static int sys_do_load_lib(t_canvas *canvas, char *objectname) { - char *filename=0, *dirbuf, *classname, *nameptr; - t_xxx makeout = NULL; - int fd; - if ((classname = strrchr(objectname, '/'))) classname++; else classname = objectname; - if (sys_onloadlist(objectname)) {post("%s: already loaded", objectname); return 1;} - char *symname = make_setup_name(classname); - /* try looking in the path for (objectname).(sys_dllextent) ... */ - fd = canvas_open2(canvas, objectname, sys_dllextent , &dirbuf, &nameptr, 1); if (fd>=0) goto gotone; - /* same, with the more generic sys_dllextent2 */ - fd = canvas_open2(canvas, objectname, sys_dllextent2, &dirbuf, &nameptr, 1); if (fd>=0) goto gotone; - /* next try (objectname)/(classname).(sys_dllextent) ... */ - asprintf(&filename,"%s/%s",objectname,classname); - fd = canvas_open2(canvas, filename, sys_dllextent , &dirbuf, &nameptr, 1); if (fd>=0) goto gotone; - fd = canvas_open2(canvas, filename, sys_dllextent2, &dirbuf, &nameptr, 1); if (fd>=0) goto gotone; - return 0; -gotone: - close(fd); - class_set_extern_dir(gensym(dirbuf)); - /* rebuild the absolute pathname */ - free(filename); - /* extra nulls are a workaround for a dlopen bug */ - asprintf(&filename,"%s/%s%c%c%c%c",dirbuf,nameptr,0,0,0,0); -// filename = realloc(filename,); -#ifdef DL_OPEN - void *dlobj = dlopen(filename, RTLD_NOW | RTLD_GLOBAL); - if (!dlobj) {post("%s: %s", filename, dlerror()); goto forgetit;} - makeout = (t_xxx)dlsym(dlobj, symname); -#endif -#ifdef MSW - sys_bashfilename(filename, filename); - HINSTANCE ntdll = LoadLibrary(filename); - if (!ntdll) {post("%s: couldn't load", filename); goto forgetit;} - makeout = (t_xxx)GetProcAddress(ntdll,"ntdll"); -#endif - if (!makeout) {post("%s: can't find symbol '%s' in library", filename, symname); goto forgetit;} - makeout(); - class_set_extern_dir(&s_); - sys_putonloadlist(objectname); - free(filename); free(symname); - return 1; -forgetit: - class_set_extern_dir(&s_); - free(filename); free(symname); free(dirbuf); - return 0; -} - -/* callback type definition */ -typedef int (*t_loader)(t_canvas *canvas, char *classname); - -/* linked list of loaders */ -struct t_loader_queue { - t_loader loader; - t_loader_queue *next; -}; - -static t_loader_queue loaders = {sys_do_load_lib, NULL}; - -/* register class loader function */ -void sys_register_loader(t_loader loader) { - t_loader_queue *q = &loaders; - while (1) { - if (q->next) q = q->next; - else { - q->next = (t_loader_queue *)getbytes(sizeof(t_loader_queue)); - q->next->loader = loader; - q->next->next = NULL; - break; - } - } -} - -int sys_load_lib(t_canvas *canvas, char *classname) { - int dspstate = canvas_suspend_dsp(); - int ok = 0; - for(t_loader_queue *q = &loaders; q; q = q->next) if ((ok = q->loader(canvas, classname))) break; - canvas_resume_dsp(dspstate); - return ok; -} |