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dl.h
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/* -*- C -*- * $Id: dl.h 11708 2007-02-12 23:01:19Z shyouhei $ */ #ifndef RUBY_DL_H #define RUBY_DL_H #include <ruby.h> #include <dlconfig.h> #if defined(HAVE_DLFCN_H) # include <dlfcn.h> # /* some stranger systems may not define all of these */ #ifndef RTLD_LAZY #define RTLD_LAZY 0 #endif #ifndef RTLD_GLOBAL #define RTLD_GLOBAL 0 #endif #ifndef RTLD_NOW #define RTLD_NOW 0 #endif #else # if defined(HAVE_WINDOWS_H) # include <windows.h> # define dlclose(ptr) FreeLibrary((HINSTANCE)ptr) # define dlopen(name,flag) ((void*)LoadLibrary(name)) # define dlerror() "unknown error" # define dlsym(handle,name) ((void*)GetProcAddress(handle,name)) # define RTLD_LAZY -1 # define RTLD_NOW -1 # define RTLD_GLOBAL -1 # endif #endif #if !defined(StringValue) # define StringValue(v) if(TYPE(v) != T_STRING) v = rb_str_to_str(v) #endif #if !defined(StringValuePtr) # define StringValuePtr(v) RSTRING((TYPE(v) == T_STRING) ? (v) : rb_str_to_str(v))->ptr #endif #ifdef DEBUG #define DEBUG_CODE(b) {printf("DEBUG:%d\n",__LINE__);b;} #define DEBUG_CODE2(b1,b2) {printf("DEBUG:%d\n",__LINE__);b1;} #else #define DEBUG_CODE(b) #define DEBUG_CODE2(b1,b2) b2 #endif #define VOID_DLTYPE 0x00 #define CHAR_DLTYPE 0x01 #define SHORT_DLTYPE 0x02 #define INT_DLTYPE 0x03 #define LONG_DLTYPE 0x04 #define FLOAT_DLTYPE 0x05 #define DOUBLE_DLTYPE 0x06 #define VOIDP_DLTYPE 0x07 #define ARG_TYPE(x,i) (((x) & (0x07 << ((i)*3))) >> ((i)*3)) #define PUSH_ARG(x,t) do{x <<= 3; x |= t;}while(0) #define PUSH_0(x) PUSH_ARG(x,VOID_DLTYPE) #if SIZEOF_INT == SIZEOF_LONG # define PUSH_I(x) PUSH_ARG(x,LONG_DLTYPE) # define ANY2I(x) x.l # define DLINT(x) (long)x #else # define PUSH_I(x) PUSH_ARG(x,INT_DLTYPE) # define ANY2I(x) x.i # define DLINT(x) (int)x #endif #define PUSH_L(x) PUSH_ARG(x,LONG_DLTYPE) #define ANY2L(x) x.l #define DLLONG(x) (long)x #if defined(WITH_TYPE_FLOAT) # if SIZEOF_FLOAT == SIZEOF_DOUBLE # define PUSH_F(x) PUSH_ARG(x,DOUBLE_DLTYPE) # define ANY2F(x) (x.d) # define DLFLOAT(x) ((double)x) # else # define PUSH_F(x) PUSH_ARG(x,FLOAT_DLTYPE) # define ANY2F(x) (x.f) # define DLFLOAT(x) ((float)x) # endif #else # define PUSH_F(x) PUSH_ARG(x,DOUBLE_DLTYPE) # define ANY2F(x) (x.d) # define DLFLOAT(x) ((double)x) #endif #define PUSH_D(x) PUSH_ARG(x,DOUBLE_DLTYPE) #define ANY2D(x) (x.d) #define DLDOUBLE(x) ((double)x) #if SIZEOF_INT == SIZEOF_VOIDP && SIZEOF_INT != SIZEOF_LONG # define PUSH_P(x) PUSH_ARG(x,INT_DLTYPE) # define ANY2P(x) (x.i) # define DLVOIDP(x) ((int)x) #elif SIZEOF_LONG == SIZEOF_VOIDP # define PUSH_P(x) PUSH_ARG(x,LONG_DLTYPE) # define ANY2P(x) (x.l) # define DLVOIDP(x) ((long)x) #else # define PUSH_P(x) PUSH_ARG(x,VOIDP_DLTYPE) # define ANY2P(x) (x.p) # define DLVOIDP(x) ((void*)p) #endif #if defined(WITH_TYPE_CHAR) # define PUSH_C(x) PUSH_ARG(x,CHAR_DLTYPE) # define ANY2C(x) (x.c) # define DLCHAR(x) ((char)x) #else # define PUSH_C(x) PUSH_I(x) # define ANY2C(x) ANY2I(x) # define DLCHAR(x) DLINT(x) #endif #if defined(WITH_TYPE_SHORT) # define PUSH_H(x) PUSH_ARG(x,SHORT_DLTYPE) # define ANY2H(x) (x.h) # define DLSHORT(x) ((short)x) #else # define PUSH_H(x) PUSH_I(x) # define ANY2H(x) ANY2I(x) # define DLSHORT(x) DLINT(x) #endif #define PUSH_S(x) PUSH_P(x) #define ANY2S(x) ANY2P(x) #define DLSTR(x) DLVOIDP(x) #define CBPUSH_0(x) PUSH_0(x) #define CBPUSH_C(x) PUSH_C(x) #define CBPUSH_H(x) PUSH_H(x) #define CBPUSH_I(x) PUSH_I(x) #define CBPUSH_L(x) PUSH_L(x) #define CBPUSH_F(x) PUSH_F(x) #define CBPUSH_D(x) PUSH_D(x) #if defined(WITH_CBTYPE_VOIDP) # define CBPUSH_P(x) PUSH_ARG(x,VOIDP_DLTYPE) #else # define CBPUSH_P(x) PUSH_P(x) #endif #if defined(USE_INLINE_ASM) # if defined(__i386__) && defined(__GNUC__) # define DLSTACK # define DLSTACK_METHOD "asm" # define DLSTACK_REVERSE # define DLSTACK_PROTO # define DLSTACK_ARGS # define DLSTACK_START(sym) # define DLSTACK_END(sym) # define DLSTACK_PUSH_C(x) asm volatile ("pushl %0" :: "g" (x)); # define DLSTACK_PUSH_H(x) asm volatile ("pushl %0" :: "g" (x)); # define DLSTACK_PUSH_I(x) asm volatile ("pushl %0" :: "g" (x)); # define DLSTACK_PUSH_L(x) asm volatile ("pushl %0" :: "g" (x)); # define DLSTACK_PUSH_P(x) asm volatile ("pushl %0" :: "g" (x)); # define DLSTACK_PUSH_F(x) asm volatile ("flds %0"::"g"(x));\ asm volatile ("subl $4,%esp");\ asm volatile ("fstps (%esp)"); # define DLSTACK_PUSH_D(x) asm volatile ("fldl %0"::"g"(x));\ asm volatile ("subl $8,%esp");\ asm volatile ("fstpl (%esp)") # else # error --with-asm is not supported on this machine # endif #elif defined(USE_DLSTACK) # define DLSTACK # define DLSTACK_GUARD # define DLSTACK_METHOD "dl" # define DLSTACK_PROTO long,long,long,long,long,\ long,long,long,long,long,\ long,long,long,long,long # define DLSTACK_ARGS stack[0],stack[1],stack[2],stack[3],stack[4],\ stack[5],stack[6],stack[7],stack[8],stack[9],\ stack[10],stack[11],stack[12],stack[13],stack[14] # define DLSTACK_SIZE (sizeof(long)*15) # define DLSTACK_START(sym) # define DLSTACK_END(sym) # define DLSTACK_PUSH_C(x) {long v=(long)x; memcpy(sp,&v,sizeof(long)); sp++;} # define DLSTACK_PUSH_H(x) {long v=(long)x; memcpy(sp,&v,sizeof(long)); sp++;} # define DLSTACK_PUSH_I(x) {long v=(long)x; memcpy(sp,&v,sizeof(long)); sp++;} # define DLSTACK_PUSH_L(x) memcpy(sp,&x,sizeof(long)); sp++; # define DLSTACK_PUSH_P(x) memcpy(sp,&x,sizeof(void*)); sp++; # define DLSTACK_PUSH_F(x) memcpy(sp,&x,sizeof(float)); sp+=sizeof(float)/sizeof(long); # define DLSTACK_PUSH_D(x) memcpy(sp,&x,sizeof(double)); sp+=sizeof(double)/sizeof(long); #else # define DLSTACK_METHOD "none" #endif extern VALUE rb_mDL; extern VALUE rb_mDLMemorySpace; extern VALUE rb_cDLHandle; extern VALUE rb_cDLSymbol; extern VALUE rb_cDLPtrData; extern VALUE rb_cDLStructData; extern VALUE rb_eDLError; extern VALUE rb_eDLTypeError; #if defined(LONG2NUM) && (SIZEOF_LONG == SIZEOF_VOIDP) # define DLLONG2NUM(x) LONG2NUM((long)x) # define DLNUM2LONG(x) (long)(NUM2LONG(x)) #else # define DLLONG2NUM(x) INT2NUM((long)x) # define DLNUM2LONG(x) (long)(NUM2INT(x)) #endif typedef struct { char c; void *x; } s_voidp; typedef struct { char c; short x; } s_short; typedef struct { char c; int x; } s_int; typedef struct { char c; long x; } s_long; typedef struct { char c; float x; } s_float; typedef struct { char c; double x; } s_double; #define ALIGN_VOIDP (sizeof(s_voidp) - sizeof(void *)) #define ALIGN_SHORT (sizeof(s_short) - sizeof(short)) #define ALIGN_INT (sizeof(s_int) - sizeof(int)) #define ALIGN_LONG (sizeof(s_long) - sizeof(long)) #define ALIGN_FLOAT (sizeof(s_float) - sizeof(float)) #define ALIGN_DOUBLE (sizeof(s_double) - sizeof(double)) /* for compatibility */ #define VOIDP_ALIGN ALIGN_VOIDP #define SHORT_ALIGN ALIGN_SHORT #define INT_ALIGN ALIGN_INT #define LONG_ALIGN ALIGN_LONG #define FLOAT_ALIGN ALIGN_FLOAT #define DOUBLE_ALIGN ALIGN_DOUBLE #define DLALIGN(ptr,offset,align) {\ while( (((unsigned long)((char *)ptr + offset)) % align) != 0 ) offset++;\ } typedef void (*freefunc_t)(void *); #define DLFREEFUNC(func) ((freefunc_t)(func)) typedef union { void* p; char c; short h; int i; long l; float f; double d; char *s; } ANY_TYPE; struct dl_handle { void *ptr; int open; int enable_close; }; struct sym_data { void *func; char *name; char *type; int len; }; enum DLPTR_CTYPE { DLPTR_CTYPE_UNKNOWN, DLPTR_CTYPE_STRUCT, DLPTR_CTYPE_UNION }; struct ptr_data { void *ptr; /* a pointer to the data */ freefunc_t free; /* free() */ char *stype; /* array of type specifiers */ int *ssize; /* size[i] = sizeof(type[i]) > 0 */ int slen; /* the number of type specifiers */ ID *ids; int ids_num; int ctype; /* DLPTR_CTYPE_UNKNOWN, DLPTR_CTYPE_STRUCT, DLPTR_CTYPE_UNION */ long size; }; #define RDLPTR(obj) ((struct ptr_data *)(DATA_PTR(obj))) #define RDLSYM(obj) ((struct sym_data *)(DATA_PTR(obj))) void dlfree(void*); void *dlmalloc(size_t); void *dlrealloc(void*,size_t); char *dlstrdup(const char *); size_t dlsizeof(const char *); void *rb_ary2cary(char t, VALUE ary, long *size); /* void rb_dlmem_delete(void *ptr); void rb_dlmem_aset(void *ptr, VALUE obj); VALUE rb_dlmem_aref(void *ptr); */ void dlptr_free(struct ptr_data *data); void dlptr_init(VALUE val); VALUE rb_dlptr_new(void *ptr, long size, freefunc_t func); VALUE rb_dlptr_new2(VALUE klass, void *ptr, long size, freefunc_t func); VALUE rb_dlptr_malloc(long size, freefunc_t func); void *rb_dlptr2cptr(VALUE val); VALUE rb_dlsym_new(void (*func)(), const char *name, const char *type); freefunc_t rb_dlsym2csym(VALUE val); #endif /* RUBY_DL_H */