mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
f7a5ee56d7
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7371 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
721 lines
14 KiB
C
721 lines
14 KiB
C
/* -*- mode: C; c-file-style: "gnu" -*-
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/*
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* $Id$
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*/
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#include <ruby.h>
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#include <rubyio.h>
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#include <ctype.h>
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#include "dl.h"
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VALUE rb_mDL;
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VALUE rb_eDLError;
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VALUE rb_eDLTypeError;
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static VALUE DLFuncTable;
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static void *rb_dl_callback_table[CALLBACK_TYPES][MAX_CALLBACK];
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static ID id_call;
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static int
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rb_dl_scan_callback_args(long stack[], const char *proto,
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int *argc, VALUE argv[])
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{
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int i;
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long *sp;
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VALUE val;
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sp = stack;
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for (i=1; proto[i]; i++) {
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switch (proto[i]) {
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case 'C':
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{
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char v;
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v = (char)(*sp);
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sp++;
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val = INT2NUM(v);
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}
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break;
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case 'H':
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{
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short v;
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v = (short)(*sp);
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sp++;
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val = INT2NUM(v);
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}
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break;
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case 'I':
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{
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int v;
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v = (int)(*sp);
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sp++;
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val = INT2NUM(v);
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}
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break;
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case 'L':
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{
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long v;
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v = (long)(*sp);
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sp++;
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val = INT2NUM(v);
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}
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break;
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case 'F':
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{
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float v;
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memcpy(&v, sp, sizeof(float));
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sp += sizeof(float)/sizeof(long);
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val = rb_float_new(v);
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}
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break;
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case 'D':
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{
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double v;
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memcpy(&v, sp, sizeof(double));
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sp += sizeof(double)/sizeof(long);
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val = rb_float_new(v);
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}
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break;
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case 'P':
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{
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void *v;
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memcpy(&v, sp, sizeof(void*));
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sp++;
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val = rb_dlptr_new(v, 0, 0);
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}
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break;
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case 'S':
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{
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char *v;
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memcpy(&v, sp, sizeof(void*));
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sp++;
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val = rb_tainted_str_new2(v);
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}
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break;
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default:
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rb_raise(rb_eDLTypeError, "scan_callback_args: unsupported type `%c'", proto[i]);
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break;
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}
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argv[i-1] = val;
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}
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*argc = (i - 1);
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return (*argc);
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}
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#include "callback.func"
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static void
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init_dl_func_table(){
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#include "cbtable.func"
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}
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void *
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dlmalloc(size_t size)
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{
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DEBUG_CODE2({
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void *ptr;
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printf("dlmalloc(%d)",size);
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ptr = xmalloc(size);
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printf(":0x%x\n",ptr);
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return ptr;
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},
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{
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return xmalloc(size);
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});
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}
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void *
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dlrealloc(void *ptr, size_t size)
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{
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DEBUG_CODE({
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printf("dlrealloc(0x%x,%d)\n",ptr,size);
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});
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return xrealloc(ptr, size);
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}
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void
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dlfree(void *ptr)
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{
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DEBUG_CODE({
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printf("dlfree(0x%x)\n",ptr);
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});
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xfree(ptr);
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}
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char*
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dlstrdup(const char *str)
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{
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char *newstr;
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newstr = (char*)dlmalloc(strlen(str));
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strcpy(newstr,str);
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return newstr;
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}
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size_t
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dlsizeof(const char *cstr)
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{
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size_t size;
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int i, len, n, dlen;
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char *d;
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len = strlen(cstr);
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size = 0;
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for (i=0; i<len; i++) {
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n = 1;
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if (ISDIGIT(cstr[i+1])) {
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dlen = 1;
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while (ISDIGIT(cstr[i+dlen])) { dlen ++; };
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dlen --;
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d = ALLOCA_N(char, dlen + 1);
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strncpy(d, cstr + i + 1, dlen);
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d[dlen] = '\0';
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n = atoi(d);
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}
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else{
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dlen = 0;
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}
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switch (cstr[i]) {
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case 'I':
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DLALIGN(0,size,INT_ALIGN);
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case 'i':
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size += sizeof(int) * n;
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break;
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case 'L':
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DLALIGN(0,size,LONG_ALIGN);
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case 'l':
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size += sizeof(long) * n;
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break;
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case 'F':
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DLALIGN(0,size,FLOAT_ALIGN);
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case 'f':
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size += sizeof(float) * n;
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break;
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case 'D':
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DLALIGN(0,size,DOUBLE_ALIGN);
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case 'd':
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size += sizeof(double) * n;
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break;
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case 'C':
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case 'c':
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size += sizeof(char) * n;
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break;
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case 'H':
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DLALIGN(0,size,SHORT_ALIGN);
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case 'h':
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size += sizeof(short) * n;
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break;
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case 'P':
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case 'S':
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DLALIGN(0,size,VOIDP_ALIGN);
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case 'p':
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case 's':
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size += sizeof(void*) * n;
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break;
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default:
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rb_raise(rb_eDLTypeError, "unexpected type '%c'", cstr[i]);
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break;
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}
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i += dlen;
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}
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return size;
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}
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static float *
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c_farray(VALUE v, long *size)
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{
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int i, len;
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float *ary;
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VALUE e;
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len = RARRAY(v)->len;
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*size = sizeof(float) * len;
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ary = dlmalloc(*size);
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for (i=0; i < len; i++) {
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e = rb_ary_entry(v, i);
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switch (TYPE(e)) {
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case T_FLOAT:
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ary[i] = (float)(RFLOAT(e)->value);
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break;
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case T_NIL:
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ary[i] = 0.0;
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break;
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default:
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rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
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break;
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}
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}
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return ary;
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}
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static double *
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c_darray(VALUE v, long *size)
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{
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int i, len;
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double *ary;
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VALUE e;
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len = RARRAY(v)->len;
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*size = sizeof(double) * len;
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ary = dlmalloc(*size);
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for (i=0; i < len; i++) {
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e = rb_ary_entry(v, i);
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switch (TYPE(e)) {
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case T_FLOAT:
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ary[i] = (double)(RFLOAT(e)->value);
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break;
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case T_NIL:
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ary[i] = 0.0;
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break;
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default:
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rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
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break;
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}
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}
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return ary;
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}
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static long *
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c_larray(VALUE v, long *size)
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{
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int i, len;
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long *ary;
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VALUE e;
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len = RARRAY(v)->len;
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*size = sizeof(long) * len;
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ary = dlmalloc(*size);
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for (i=0; i < len; i++) {
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e = rb_ary_entry(v, i);
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switch (TYPE(e)) {
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case T_FIXNUM:
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case T_BIGNUM:
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ary[i] = (long)(NUM2INT(e));
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break;
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case T_NIL:
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ary[i] = 0;
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break;
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default:
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rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
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break;
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}
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}
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return ary;
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}
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static int *
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c_iarray(VALUE v, long *size)
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{
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int i, len;
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int *ary;
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VALUE e;
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len = RARRAY(v)->len;
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*size = sizeof(int) * len;
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ary = dlmalloc(*size);
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for (i=0; i < len; i++) {
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e = rb_ary_entry(v, i);
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switch (TYPE(e)) {
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case T_FIXNUM:
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case T_BIGNUM:
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ary[i] = (int)(NUM2INT(e));
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break;
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case T_NIL:
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ary[i] = 0;
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break;
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default:
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rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
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break;
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}
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}
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return ary;
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}
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static short *
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c_harray(VALUE v, long *size)
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{
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int i, len;
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short *ary;
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VALUE e;
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len = RARRAY(v)->len;
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*size = sizeof(short) * len;
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ary = dlmalloc(*size);
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for (i=0; i < len; i++) {
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e = rb_ary_entry(v, i);
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switch (TYPE(e)) {
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case T_FIXNUM:
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case T_BIGNUM:
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ary[i] = (short)(NUM2INT(e));
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break;
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case T_NIL:
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ary[i] = 0;
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break;
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default:
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rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
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break;
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}
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}
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return ary;
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}
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static char *
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c_carray(VALUE v, long *size)
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{
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int i, len;
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char *ary;
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VALUE e;
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len = RARRAY(v)->len;
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*size = sizeof(char) * len;
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ary = dlmalloc(*size);
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for (i=0; i < len; i++) {
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e = rb_ary_entry(v, i);
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switch (TYPE(e)) {
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case T_FIXNUM:
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case T_BIGNUM:
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ary[i] = (char)(NUM2INT(e));
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break;
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case T_NIL:
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ary[i] = 0;
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break;
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default:
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rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
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break;
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}
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}
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return ary;
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}
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static void *
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c_parray(VALUE v, long *size)
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{
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int i, len;
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void **ary;
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VALUE e, tmp;
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len = RARRAY(v)->len;
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*size = sizeof(void*) * len;
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ary = dlmalloc(*size);
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for (i=0; i < len; i++) {
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e = rb_ary_entry(v, i);
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switch (TYPE(e)) {
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default:
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tmp = rb_check_string_type(e);
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if (NIL_P(tmp)) {
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rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
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}
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e = tmp;
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/* fall through */
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case T_STRING:
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rb_check_safe_str(e);
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{
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char *str, *src;
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src = RSTRING(e)->ptr;
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str = dlstrdup(src);
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ary[i] = (void*)str;
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}
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break;
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case T_NIL:
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ary[i] = NULL;
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break;
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case T_DATA:
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if (rb_obj_is_kind_of(e, rb_cDLPtrData)) {
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struct ptr_data *pdata;
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Data_Get_Struct(e, struct ptr_data, pdata);
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ary[i] = (void*)(pdata->ptr);
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}
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else{
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rb_raise(rb_eDLTypeError, "unexpected type of the element #%d", i);
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}
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break;
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}
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}
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return ary;
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}
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void *
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rb_ary2cary(char t, VALUE v, long *size)
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{
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int len;
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VALUE val0;
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val0 = rb_check_array_type(v);
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if(NIL_P(TYPE(val0))) {
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rb_raise(rb_eDLTypeError, "an array is expected.");
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}
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v = val0;
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len = RARRAY(v)->len;
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if (len == 0) {
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return NULL;
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}
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if (!size) {
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size = ALLOCA_N(long,1);
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}
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val0 = rb_ary_entry(v,0);
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switch (TYPE(val0)) {
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case T_FIXNUM:
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case T_BIGNUM:
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switch (t) {
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case 'C': case 'c':
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return (void*)c_carray(v,size);
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case 'H': case 'h':
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return (void*)c_harray(v,size);
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case 'I': case 'i':
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return (void*)c_iarray(v,size);
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case 'L': case 'l': case 0:
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return (void*)c_larray(v,size);
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default:
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rb_raise(rb_eDLTypeError, "type mismatch");
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}
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case T_STRING:
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return (void*)c_parray(v,size);
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case T_FLOAT:
|
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switch (t) {
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case 'F': case 'f':
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return (void*)c_farray(v,size);
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case 'D': case 'd': case 0:
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return (void*)c_darray(v,size);
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}
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rb_raise(rb_eDLTypeError, "type mismatch");
|
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case T_DATA:
|
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if (rb_obj_is_kind_of(val0, rb_cDLPtrData)) {
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return (void*)c_parray(v,size);
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}
|
|
rb_raise(rb_eDLTypeError, "type mismatch");
|
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case T_NIL:
|
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return (void*)c_parray(v, size);
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default:
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rb_raise(rb_eDLTypeError, "unsupported type");
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}
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}
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VALUE
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rb_str_to_ptr(VALUE self)
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{
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char *ptr;
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int len;
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len = RSTRING(self)->len;
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ptr = (char*)dlmalloc(len + 1);
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memcpy(ptr, RSTRING(self)->ptr, len);
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ptr[len] = '\0';
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return rb_dlptr_new((void*)ptr,len,dlfree);
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}
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|
VALUE
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rb_ary_to_ptr(int argc, VALUE argv[], VALUE self)
|
|
{
|
|
void *ptr;
|
|
VALUE t;
|
|
long size;
|
|
|
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switch (rb_scan_args(argc, argv, "01", &t)) {
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case 1:
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ptr = rb_ary2cary(StringValuePtr(t)[0], self, &size);
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break;
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case 0:
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ptr = rb_ary2cary(0, self, &size);
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break;
|
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}
|
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return ptr ? rb_dlptr_new(ptr, size, dlfree) : Qnil;
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|
}
|
|
|
|
VALUE
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|
rb_io_to_ptr(VALUE self)
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|
{
|
|
OpenFile *fptr;
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|
FILE *fp;
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|
|
GetOpenFile(self, fptr);
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fp = fptr->f;
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|
|
return fp ? rb_dlptr_new(fp, sizeof(FILE), 0) : Qnil;
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|
}
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|
|
|
VALUE
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|
rb_dl_dlopen(int argc, VALUE argv[], VALUE self)
|
|
{
|
|
rb_secure(4);
|
|
return rb_class_new_instance(argc, argv, rb_cDLHandle);
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|
}
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|
|
VALUE
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rb_dl_malloc(VALUE self, VALUE size)
|
|
{
|
|
rb_secure(4);
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return rb_dlptr_malloc(DLNUM2LONG(size), dlfree);
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|
}
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|
|
VALUE
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rb_dl_strdup(VALUE self, VALUE str)
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|
{
|
|
void *ptr;
|
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long len;
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|
|
SafeStringValue(str);
|
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len = RSTRING(str)->len;
|
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ptr = memcpy(dlmalloc(len + 1), RSTRING(str)->ptr, len + 1);
|
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((char *)ptr)[len] = '\0';
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return rb_dlptr_new(ptr, len, dlfree);
|
|
}
|
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|
|
static VALUE
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|
rb_dl_sizeof(VALUE self, VALUE str)
|
|
{
|
|
return INT2NUM(dlsizeof(StringValuePtr(str)));
|
|
}
|
|
|
|
static VALUE
|
|
rb_dl_callback(int argc, VALUE argv[], VALUE self)
|
|
{
|
|
VALUE type, proc;
|
|
int rettype, entry, i;
|
|
char fname[127];
|
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|
|
rb_secure(4);
|
|
proc = Qnil;
|
|
switch (rb_scan_args(argc, argv, "11", &type, &proc)) {
|
|
case 1:
|
|
if (rb_block_given_p()) {
|
|
proc = rb_block_proc();
|
|
}
|
|
else{
|
|
proc = Qnil;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
StringValue(type);
|
|
switch (RSTRING(type)->ptr[0]) {
|
|
case '0':
|
|
rettype = 0x00;
|
|
break;
|
|
case 'C':
|
|
rettype = 0x01;
|
|
break;
|
|
case 'H':
|
|
rettype = 0x02;
|
|
break;
|
|
case 'I':
|
|
rettype = 0x03;
|
|
break;
|
|
case 'L':
|
|
rettype = 0x04;
|
|
break;
|
|
case 'F':
|
|
rettype = 0x05;
|
|
break;
|
|
case 'D':
|
|
rettype = 0x06;
|
|
break;
|
|
case 'P':
|
|
rettype = 0x07;
|
|
break;
|
|
default:
|
|
rb_raise(rb_eDLTypeError, "unsupported type `%c'", RSTRING(type)->ptr[0]);
|
|
}
|
|
|
|
entry = -1;
|
|
for (i=0; i < MAX_CALLBACK; i++) {
|
|
if (rb_hash_aref(DLFuncTable, rb_assoc_new(INT2NUM(rettype), INT2NUM(i))) == Qnil) {
|
|
entry = i;
|
|
break;
|
|
}
|
|
}
|
|
if (entry < 0) {
|
|
rb_raise(rb_eDLError, "too many callbacks are defined.");
|
|
}
|
|
|
|
rb_hash_aset(DLFuncTable,
|
|
rb_assoc_new(INT2NUM(rettype),INT2NUM(entry)),
|
|
rb_assoc_new(type,proc));
|
|
sprintf(fname, "rb_dl_callback_func_%d_%d", rettype, entry);
|
|
return rb_dlsym_new((void (*)())rb_dl_callback_table[rettype][entry],
|
|
fname, RSTRING(type)->ptr);
|
|
}
|
|
|
|
static VALUE
|
|
rb_dl_remove_callback(VALUE mod, VALUE sym)
|
|
{
|
|
freefunc_t f;
|
|
int i, j;
|
|
|
|
rb_secure(4);
|
|
f = rb_dlsym2csym(sym);
|
|
for (i=0; i < CALLBACK_TYPES; i++) {
|
|
for (j=0; j < MAX_CALLBACK; j++) {
|
|
if (rb_dl_callback_table[i][j] == f) {
|
|
rb_hash_aset(DLFuncTable, rb_assoc_new(INT2NUM(i),INT2NUM(j)),Qnil);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return Qnil;
|
|
}
|
|
|
|
void
|
|
Init_dl()
|
|
{
|
|
void Init_dlptr();
|
|
void Init_dlsym();
|
|
void Init_dlhandle();
|
|
|
|
id_call = rb_intern("call");
|
|
|
|
rb_mDL = rb_define_module("DL");
|
|
|
|
rb_eDLError = rb_define_class_under(rb_mDL, "DLError", rb_eStandardError);
|
|
rb_eDLTypeError = rb_define_class_under(rb_mDL, "DLTypeError", rb_eDLError);
|
|
|
|
DLFuncTable = rb_hash_new();
|
|
init_dl_func_table();
|
|
rb_define_const(rb_mDL, "FuncTable", DLFuncTable);
|
|
|
|
rb_define_const(rb_mDL, "RTLD_GLOBAL", INT2NUM(RTLD_GLOBAL));
|
|
rb_define_const(rb_mDL, "RTLD_LAZY", INT2NUM(RTLD_LAZY));
|
|
rb_define_const(rb_mDL, "RTLD_NOW", INT2NUM(RTLD_NOW));
|
|
|
|
rb_define_const(rb_mDL, "ALIGN_INT", INT2NUM(ALIGN_INT));
|
|
rb_define_const(rb_mDL, "ALIGN_LONG", INT2NUM(ALIGN_LONG));
|
|
rb_define_const(rb_mDL, "ALIGN_FLOAT", INT2NUM(ALIGN_FLOAT));
|
|
rb_define_const(rb_mDL, "ALIGN_SHORT", INT2NUM(ALIGN_SHORT));
|
|
rb_define_const(rb_mDL, "ALIGN_DOUBLE",INT2NUM(ALIGN_DOUBLE));
|
|
rb_define_const(rb_mDL, "ALIGN_VOIDP", INT2NUM(ALIGN_VOIDP));
|
|
|
|
rb_define_const(rb_mDL, "MAX_ARG", INT2NUM(MAX_ARG));
|
|
rb_define_const(rb_mDL, "DLSTACK", rb_tainted_str_new2(DLSTACK_METHOD));
|
|
|
|
rb_define_module_function(rb_mDL, "dlopen", rb_dl_dlopen, -1);
|
|
rb_define_module_function(rb_mDL, "callback", rb_dl_callback, -1);
|
|
rb_define_module_function(rb_mDL, "define_callback", rb_dl_callback, -1);
|
|
rb_define_module_function(rb_mDL, "remove_callback", rb_dl_remove_callback, 1);
|
|
rb_define_module_function(rb_mDL, "malloc", rb_dl_malloc, 1);
|
|
rb_define_module_function(rb_mDL, "strdup", rb_dl_strdup, 1);
|
|
rb_define_module_function(rb_mDL, "sizeof", rb_dl_sizeof, 1);
|
|
|
|
Init_dlptr();
|
|
Init_dlsym();
|
|
Init_dlhandle();
|
|
|
|
rb_define_const(rb_mDL, "FREE", rb_dlsym_new(dlfree, "free", "0P"));
|
|
|
|
rb_define_method(rb_cString, "to_ptr", rb_str_to_ptr, 0);
|
|
rb_define_method(rb_cArray, "to_ptr", rb_ary_to_ptr, -1);
|
|
rb_define_method(rb_cIO, "to_ptr", rb_io_to_ptr, 0);
|
|
}
|