source: extensions/gsdl-video/trunk/installed/cmdline/lib/ruby/1.8/i686-linux/dl.h@ 18425

Last change on this file since 18425 was 18425, checked in by davidb, 15 years ago

Video extension to Greenstone
File size: 8.7 KB
Line 
1/* -*- C -*-
2 * $Id: dl.h 11708 2007-02-12 23:01:19Z shyouhei $
3 */
4
5#ifndef RUBY_DL_H
6#define RUBY_DL_H
7
8#include <ruby.h>
9#include <dlconfig.h>
10
11#if defined(HAVE_DLFCN_H)
12# include <dlfcn.h>
13# /* some stranger systems may not define all of these */
14#ifndef RTLD_LAZY
15#define RTLD_LAZY 0
16#endif
17#ifndef RTLD_GLOBAL
18#define RTLD_GLOBAL 0
19#endif
20#ifndef RTLD_NOW
21#define RTLD_NOW 0
22#endif
23#else
24# if defined(HAVE_WINDOWS_H)
25# include <windows.h>
26# define dlclose(ptr) FreeLibrary((HINSTANCE)ptr)
27# define dlopen(name,flag) ((void*)LoadLibrary(name))
28# define dlerror() "unknown error"
29# define dlsym(handle,name) ((void*)GetProcAddress(handle,name))
30# define RTLD_LAZY -1
31# define RTLD_NOW -1
32# define RTLD_GLOBAL -1
33# endif
34#endif
35
36#if !defined(StringValue)
37# define StringValue(v) if(TYPE(v) != T_STRING) v = rb_str_to_str(v)
38#endif
39#if !defined(StringValuePtr)
40# define StringValuePtr(v) RSTRING((TYPE(v) == T_STRING) ? (v) : rb_str_to_str(v))->ptr
41#endif
42
43#ifdef DEBUG
44#define DEBUG_CODE(b) {printf("DEBUG:%d\n",__LINE__);b;}
45#define DEBUG_CODE2(b1,b2) {printf("DEBUG:%d\n",__LINE__);b1;}
46#else
47#define DEBUG_CODE(b)
48#define DEBUG_CODE2(b1,b2) b2
49#endif
50
51#define VOID_DLTYPE 0x00
52#define CHAR_DLTYPE 0x01
53#define SHORT_DLTYPE 0x02
54#define INT_DLTYPE 0x03
55#define LONG_DLTYPE 0x04
56#define FLOAT_DLTYPE 0x05
57#define DOUBLE_DLTYPE 0x06
58#define VOIDP_DLTYPE 0x07
59
60#define ARG_TYPE(x,i) (((x) & (0x07 << ((i)*3))) >> ((i)*3))
61#define PUSH_ARG(x,t) do{x <<= 3; x |= t;}while(0)
62#define PUSH_0(x) PUSH_ARG(x,VOID_DLTYPE)
63
64#if SIZEOF_INT == SIZEOF_LONG
65# define PUSH_I(x) PUSH_ARG(x,LONG_DLTYPE)
66# define ANY2I(x) x.l
67# define DLINT(x) (long)x
68#else
69# define PUSH_I(x) PUSH_ARG(x,INT_DLTYPE)
70# define ANY2I(x) x.i
71# define DLINT(x) (int)x
72#endif
73#define PUSH_L(x) PUSH_ARG(x,LONG_DLTYPE)
74#define ANY2L(x) x.l
75#define DLLONG(x) (long)x
76
77#if defined(WITH_TYPE_FLOAT)
78# if SIZEOF_FLOAT == SIZEOF_DOUBLE
79# define PUSH_F(x) PUSH_ARG(x,DOUBLE_DLTYPE)
80# define ANY2F(x) (x.d)
81# define DLFLOAT(x) ((double)x)
82# else
83# define PUSH_F(x) PUSH_ARG(x,FLOAT_DLTYPE)
84# define ANY2F(x) (x.f)
85# define DLFLOAT(x) ((float)x)
86# endif
87#else
88# define PUSH_F(x) PUSH_ARG(x,DOUBLE_DLTYPE)
89# define ANY2F(x) (x.d)
90# define DLFLOAT(x) ((double)x)
91#endif
92#define PUSH_D(x) PUSH_ARG(x,DOUBLE_DLTYPE)
93#define ANY2D(x) (x.d)
94#define DLDOUBLE(x) ((double)x)
95
96#if SIZEOF_INT == SIZEOF_VOIDP && SIZEOF_INT != SIZEOF_LONG
97# define PUSH_P(x) PUSH_ARG(x,INT_DLTYPE)
98# define ANY2P(x) (x.i)
99# define DLVOIDP(x) ((int)x)
100#elif SIZEOF_LONG == SIZEOF_VOIDP
101# define PUSH_P(x) PUSH_ARG(x,LONG_DLTYPE)
102# define ANY2P(x) (x.l)
103# define DLVOIDP(x) ((long)x)
104#else
105# define PUSH_P(x) PUSH_ARG(x,VOIDP_DLTYPE)
106# define ANY2P(x) (x.p)
107# define DLVOIDP(x) ((void*)p)
108#endif
109
110#if defined(WITH_TYPE_CHAR)
111# define PUSH_C(x) PUSH_ARG(x,CHAR_DLTYPE)
112# define ANY2C(x) (x.c)
113# define DLCHAR(x) ((char)x)
114#else
115# define PUSH_C(x) PUSH_I(x)
116# define ANY2C(x) ANY2I(x)
117# define DLCHAR(x) DLINT(x)
118#endif
119
120#if defined(WITH_TYPE_SHORT)
121# define PUSH_H(x) PUSH_ARG(x,SHORT_DLTYPE)
122# define ANY2H(x) (x.h)
123# define DLSHORT(x) ((short)x)
124#else
125# define PUSH_H(x) PUSH_I(x)
126# define ANY2H(x) ANY2I(x)
127# define DLSHORT(x) DLINT(x)
128#endif
129
130#define PUSH_S(x) PUSH_P(x)
131#define ANY2S(x) ANY2P(x)
132#define DLSTR(x) DLVOIDP(x)
133
134#define CBPUSH_0(x) PUSH_0(x)
135#define CBPUSH_C(x) PUSH_C(x)
136#define CBPUSH_H(x) PUSH_H(x)
137#define CBPUSH_I(x) PUSH_I(x)
138#define CBPUSH_L(x) PUSH_L(x)
139#define CBPUSH_F(x) PUSH_F(x)
140#define CBPUSH_D(x) PUSH_D(x)
141#if defined(WITH_CBTYPE_VOIDP)
142# define CBPUSH_P(x) PUSH_ARG(x,VOIDP_DLTYPE)
143#else
144# define CBPUSH_P(x) PUSH_P(x)
145#endif
146
147
148#if defined(USE_INLINE_ASM)
149# if defined(__i386__) && defined(__GNUC__)
150# define DLSTACK
151# define DLSTACK_METHOD "asm"
152# define DLSTACK_REVERSE
153# define DLSTACK_PROTO
154# define DLSTACK_ARGS
155# define DLSTACK_START(sym)
156# define DLSTACK_END(sym)
157# define DLSTACK_PUSH_C(x) asm volatile ("pushl %0" :: "g" (x));
158# define DLSTACK_PUSH_H(x) asm volatile ("pushl %0" :: "g" (x));
159# define DLSTACK_PUSH_I(x) asm volatile ("pushl %0" :: "g" (x));
160# define DLSTACK_PUSH_L(x) asm volatile ("pushl %0" :: "g" (x));
161# define DLSTACK_PUSH_P(x) asm volatile ("pushl %0" :: "g" (x));
162# define DLSTACK_PUSH_F(x) asm volatile ("flds %0"::"g"(x));\
163 asm volatile ("subl $4,%esp");\
164 asm volatile ("fstps (%esp)");
165# define DLSTACK_PUSH_D(x) asm volatile ("fldl %0"::"g"(x));\
166 asm volatile ("subl $8,%esp");\
167 asm volatile ("fstpl (%esp)")
168# else
169# error --with-asm is not supported on this machine
170# endif
171#elif defined(USE_DLSTACK)
172# define DLSTACK
173# define DLSTACK_GUARD
174# define DLSTACK_METHOD "dl"
175# define DLSTACK_PROTO long,long,long,long,long,\
176 long,long,long,long,long,\
177 long,long,long,long,long
178# define DLSTACK_ARGS stack[0],stack[1],stack[2],stack[3],stack[4],\
179 stack[5],stack[6],stack[7],stack[8],stack[9],\
180 stack[10],stack[11],stack[12],stack[13],stack[14]
181# define DLSTACK_SIZE (sizeof(long)*15)
182# define DLSTACK_START(sym)
183# define DLSTACK_END(sym)
184# define DLSTACK_PUSH_C(x) {long v=(long)x; memcpy(sp,&v,sizeof(long)); sp++;}
185# define DLSTACK_PUSH_H(x) {long v=(long)x; memcpy(sp,&v,sizeof(long)); sp++;}
186# define DLSTACK_PUSH_I(x) {long v=(long)x; memcpy(sp,&v,sizeof(long)); sp++;}
187# define DLSTACK_PUSH_L(x) memcpy(sp,&x,sizeof(long)); sp++;
188# define DLSTACK_PUSH_P(x) memcpy(sp,&x,sizeof(void*)); sp++;
189# define DLSTACK_PUSH_F(x) memcpy(sp,&x,sizeof(float)); sp+=sizeof(float)/sizeof(long);
190# define DLSTACK_PUSH_D(x) memcpy(sp,&x,sizeof(double)); sp+=sizeof(double)/sizeof(long);
191#else
192# define DLSTACK_METHOD "none"
193#endif
194
195extern VALUE rb_mDL;
196extern VALUE rb_mDLMemorySpace;
197extern VALUE rb_cDLHandle;
198extern VALUE rb_cDLSymbol;
199extern VALUE rb_cDLPtrData;
200extern VALUE rb_cDLStructData;
201
202extern VALUE rb_eDLError;
203extern VALUE rb_eDLTypeError;
204
205#if defined(LONG2NUM) && (SIZEOF_LONG == SIZEOF_VOIDP)
206# define DLLONG2NUM(x) LONG2NUM((long)x)
207# define DLNUM2LONG(x) (long)(NUM2LONG(x))
208#else
209# define DLLONG2NUM(x) INT2NUM((long)x)
210# define DLNUM2LONG(x) (long)(NUM2INT(x))
211#endif
212
213typedef struct { char c; void *x; } s_voidp;
214typedef struct { char c; short x; } s_short;
215typedef struct { char c; int x; } s_int;
216typedef struct { char c; long x; } s_long;
217typedef struct { char c; float x; } s_float;
218typedef struct { char c; double x; } s_double;
219
220#define ALIGN_VOIDP (sizeof(s_voidp) - sizeof(void *))
221#define ALIGN_SHORT (sizeof(s_short) - sizeof(short))
222#define ALIGN_INT (sizeof(s_int) - sizeof(int))
223#define ALIGN_LONG (sizeof(s_long) - sizeof(long))
224#define ALIGN_FLOAT (sizeof(s_float) - sizeof(float))
225#define ALIGN_DOUBLE (sizeof(s_double) - sizeof(double))
226
227/* for compatibility */
228#define VOIDP_ALIGN ALIGN_VOIDP
229#define SHORT_ALIGN ALIGN_SHORT
230#define INT_ALIGN ALIGN_INT
231#define LONG_ALIGN ALIGN_LONG
232#define FLOAT_ALIGN ALIGN_FLOAT
233#define DOUBLE_ALIGN ALIGN_DOUBLE
234
235#define DLALIGN(ptr,offset,align) {\
236 while( (((unsigned long)((char *)ptr + offset)) % align) != 0 ) offset++;\
237}
238
239typedef void (*freefunc_t)(void *);
240#define DLFREEFUNC(func) ((freefunc_t)(func))
241
242typedef union {
243 void* p;
244 char c;
245 short h;
246 int i;
247 long l;
248 float f;
249 double d;
250 char *s;
251} ANY_TYPE;
252
253struct dl_handle {
254 void *ptr;
255 int open;
256 int enable_close;
257};
258
259struct sym_data {
260 void *func;
261 char *name;
262 char *type;
263 int len;
264};
265
266enum DLPTR_CTYPE {
267 DLPTR_CTYPE_UNKNOWN,
268 DLPTR_CTYPE_STRUCT,
269 DLPTR_CTYPE_UNION
270};
271
272struct ptr_data {
273 void *ptr; /* a pointer to the data */
274 freefunc_t free; /* free() */
275 char *stype; /* array of type specifiers */
276 int *ssize; /* size[i] = sizeof(type[i]) > 0 */
277 int slen; /* the number of type specifiers */
278 ID *ids;
279 int ids_num;
280 int ctype; /* DLPTR_CTYPE_UNKNOWN, DLPTR_CTYPE_STRUCT, DLPTR_CTYPE_UNION */
281 long size;
282};
283
284#define RDLPTR(obj) ((struct ptr_data *)(DATA_PTR(obj)))
285#define RDLSYM(obj) ((struct sym_data *)(DATA_PTR(obj)))
286
287void dlfree(void*);
288void *dlmalloc(size_t);
289void *dlrealloc(void*,size_t);
290char *dlstrdup(const char *);
291size_t dlsizeof(const char *);
292
293void *rb_ary2cary(char t, VALUE ary, long *size);
294
295/*
296void rb_dlmem_delete(void *ptr);
297void rb_dlmem_aset(void *ptr, VALUE obj);
298VALUE rb_dlmem_aref(void *ptr);
299*/
300
301void dlptr_free(struct ptr_data *data);
302void dlptr_init(VALUE val);
303
304VALUE rb_dlptr_new(void *ptr, long size, freefunc_t func);
305VALUE rb_dlptr_new2(VALUE klass, void *ptr, long size, freefunc_t func);
306VALUE rb_dlptr_malloc(long size, freefunc_t func);
307void *rb_dlptr2cptr(VALUE val);
308
309VALUE rb_dlsym_new(void (*func)(), const char *name, const char *type);
310freefunc_t rb_dlsym2csym(VALUE val);
311
312
313#endif /* RUBY_DL_H */
Note: See TracBrowser for help on using the repository browser.