--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/RISCOS/Modules/swimodule.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,575 @@
+/* swi
+
+ RISC OS swi functions
+
+ 1.00 Chris Stretch
+
+
+ 1.01 12 May 1999 Laurence Tratt
+
+ * Changed swi.error to be a class based exception rather than string based
+ * Added swi.ArgError which is generated for errors when the user passes invalid arguments to
+ functions etc
+ * Added "errnum" attribute to swi.error, so one can now check to see what the error number was
+
+ 1.02 03 March 2002 Dietmar Schwertberger
+ * Added string, integer, integers, tuple and tuples
+*/
+
+#include "oslib/os.h"
+#include <kernel.h>
+#include "Python.h"
+
+
+#define PyBlock_Check(op) ((op)->ob_type == &PyBlockType)
+
+
+static PyObject *SwiError; /* Exception swi.error */
+static PyObject *ArgError; /* Exception swi.ArgError */
+static os_error *e;
+
+static PyObject *swi_oserror(void)
+{ PyErr_SetString(SwiError,e->errmess);
+ PyObject_SetAttrString(PyErr_Occurred(), "errnum", PyInt_FromLong(e->errnum));
+ return 0;
+}
+
+static PyObject *swi_error(char *s)
+{ PyErr_SetString(ArgError,s);
+ return 0;
+}
+
+typedef struct
+{ PyObject_HEAD
+ void *block;
+ int length; /*length in bytes*/
+ int heap;
+} PyBlockObject;
+
+static PyTypeObject PyBlockType;
+
+/* block commands */
+
+static PyObject *PyBlock_New(PyObject *self,PyObject *args)
+{ int size;
+ PyBlockObject *b;
+ PyObject *init=0;
+ if(!PyArg_ParseTuple(args,"i|O",&size,&init)) return NULL;
+ if(size<1) size=1;
+ b=PyObject_NEW(PyBlockObject,&PyBlockType);
+ if(!b) return NULL;
+ b->block=malloc(4*size);
+ if(!b->block)
+ { Py_DECREF(b);
+ return PyErr_NoMemory();
+ }
+ b->length=4*size;
+ b->heap=1;
+ if(init)
+ { if(PyString_Check(init))
+ { int n=PyString_Size(init);
+ if (n>4*size) n=4*size;
+ memcpy(b->block,PyString_AsString(init),n);
+ memset((char*)b->block+n,0,4*size-n);
+ }
+ else
+ { int n,k;
+ long *p=(long*)b->block;
+ if(!PyList_Check(init)) goto fail;
+ n=PyList_Size(init);
+ if (n>size) n=size;
+ for(k=0;k<n;k++)
+ { PyObject *q=PyList_GetItem(init,k);
+ if(!PyInt_Check(q)) goto fail;
+ p[k]=PyInt_AsLong(q);
+ }
+ for(;k<size;k++) p[k]=0;
+ }
+ }
+ return (PyObject *)b;
+ fail:PyErr_SetString(PyExc_TypeError,
+ "block initialiser must be string or list of integers");
+ Py_DECREF(b);
+ return NULL;
+}
+
+static PyObject *PyRegister(PyObject *self,PyObject *args)
+{ int size,ptr;
+ PyBlockObject *b;
+ if(!PyArg_ParseTuple(args,"ii",&size,&ptr)) return NULL;
+ if(size<1) size=1;
+ b=PyObject_NEW(PyBlockObject,&PyBlockType);
+ if(!b) return NULL;
+ b->block=(void*)ptr;
+ b->length=4*size;
+ b->heap=0;
+ return (PyObject *)b;
+}
+
+static PyObject *PyBlock_ToString(PyBlockObject *self,PyObject *arg)
+{ int s=0,e=self->length;
+ if(!PyArg_ParseTuple(arg,"|ii",&s,&e)) return NULL;
+ if(s<0||e>self->length||s>e)
+ { PyErr_SetString(PyExc_IndexError,"block index out of range");
+ return NULL;
+ }
+ return PyString_FromStringAndSize((char*)self->block+s,e-s);
+}
+
+static PyObject *PyBlock_NullString(PyBlockObject *self,PyObject *arg)
+{ int s=0,e=self->length,i;
+ char *p=(char*)self->block;
+ if(!PyArg_ParseTuple(arg,"|ii",&s,&e)) return NULL;
+ if(s<0||e>self->length||s>e)
+ { PyErr_SetString(PyExc_IndexError,"block index out of range");
+ return NULL;
+ }
+ for(i=s;i<e;i++) if(p[i]==0) break;
+ return PyString_FromStringAndSize((char*)self->block+s,i-s);
+}
+
+static PyObject *PyBlock_CtrlString(PyBlockObject *self,PyObject *arg)
+{ int s=0,e=self->length,i;
+ char *p=(char*)self->block;
+ if(!PyArg_ParseTuple(arg,"|ii",&s,&e)) return NULL;
+ if(s<0||e>self->length||s>e)
+ { PyErr_SetString(PyExc_IndexError,"block index out of range");
+ return NULL;
+ }
+ for(i=s;i<e;i++) if(p[i]<32) break;
+ return PyString_FromStringAndSize((char*)self->block+s,i-s);
+}
+
+static PyObject *PyBlock_PadString(PyBlockObject *self,PyObject *arg)
+{ int s=0,e=self->length,n,m;
+ char *str;
+ char c;
+ char *p=(char*)self->block;
+ if(!PyArg_ParseTuple(arg,"s#c|ii",&str,&n,&c,&s,&e)) return NULL;
+ if(s<0||e>self->length||s>e)
+ { PyErr_SetString(PyExc_IndexError,"block index out of range");
+ return NULL;
+ }
+ m=e-s;
+ if(n>m) n=m;
+ memcpy(p+s,str,n);memset(p+s+n,c,m-n);
+ Py_INCREF(Py_None);return Py_None;
+}
+
+static PyObject *PyBlock_BitSet(PyBlockObject *self,PyObject *arg)
+{ int i,x,y;
+ int *p=(int*)self->block;
+ if(!PyArg_ParseTuple(arg,"iii",&i,&x,&y)) return NULL;
+ if(i<0||i>=self->length/4)
+ { PyErr_SetString(PyExc_IndexError,"block index out of range");
+ return NULL;
+ }
+ p[i]=(p[i]&y)^x;
+ Py_INCREF(Py_None);return Py_None;
+}
+
+static PyObject *PyBlock_Resize(PyBlockObject *self,PyObject *arg)
+{ int n;
+ if(!PyArg_ParseTuple(arg,"i",&n)) return NULL;
+ if(n<1) n=1;
+ if(self->heap)
+ { void *v=realloc(self->block,4*n);
+ if (!v) return PyErr_NoMemory();
+ self->block=v;
+ }
+ self->length=4*n;
+ Py_INCREF(Py_None);return Py_None;
+}
+
+static PyObject *PyBlock_ToFile(PyBlockObject *self,PyObject *arg)
+{ int s=0,e=self->length/4;
+ PyObject *f;
+ FILE *fp;
+ if(!PyArg_ParseTuple(arg,"O|ii",&f,&s,&e)) return NULL;
+ fp=PyFile_AsFile(f);
+ if (!fp)
+ { PyErr_SetString(PyExc_TypeError, "arg must be open file");
+ return NULL;
+ }
+ fwrite((int*)(self->block)+s,4,e-s,fp);
+ Py_INCREF(Py_None);return Py_None;
+}
+
+static struct PyMethodDef PyBlock_Methods[]=
+{ { "tostring",(PyCFunction)PyBlock_ToString,1},
+ { "padstring",(PyCFunction)PyBlock_PadString,1},
+ { "nullstring",(PyCFunction)PyBlock_NullString,1},
+ { "ctrlstring",(PyCFunction)PyBlock_CtrlString,1},
+ { "bitset",(PyCFunction)PyBlock_BitSet,1},
+ { "resize",(PyCFunction)PyBlock_Resize,1},
+ { "tofile",(PyCFunction)PyBlock_ToFile,1},
+ { NULL,NULL} /* sentinel */
+};
+
+static int block_len(PyBlockObject *b)
+{ return b->length/4;
+}
+
+static PyObject *block_concat(PyBlockObject *b,PyBlockObject *c)
+{ PyErr_SetString(PyExc_IndexError,"block concatenation not implemented");
+ return NULL;
+}
+
+static PyObject *block_repeat(PyBlockObject *b,Py_ssize_t i)
+{ PyErr_SetString(PyExc_IndexError,"block repetition not implemented");
+ return NULL;
+}
+
+static PyObject *block_item(PyBlockObject *b,Py_ssize_t i)
+{ if(i<0||4*i>=b->length)
+ { PyErr_SetString(PyExc_IndexError,"block index out of range");
+ return NULL;
+ }
+ return PyInt_FromLong(((long*)(b->block))[i]);
+}
+
+static PyObject *block_slice(PyBlockObject *b,Py_ssize_t i,Py_ssize_t j)
+{ Py_ssize_t n,k;
+ long *p=b->block;
+ PyObject *result;
+ if(j>b->length/4) j=b->length/4;
+ if(i<0||i>j)
+ { PyErr_SetString(PyExc_IndexError,"block index out of range");
+ return NULL;
+ }
+ n=j-i;
+ result=PyList_New(n);
+ for(k=0;k<n;k++) PyList_SetItem(result,k,PyInt_FromSsize_t(p[i+k]));
+ return result;
+}
+
+static int block_ass_item(PyBlockObject *b,Py_ssize_t i,PyObject *v)
+{ if(i<0||i>=b->length/4)
+ { PyErr_SetString(PyExc_IndexError,"block index out of range");
+ return -1;
+ }
+ if(!PyInt_Check(v))
+ { PyErr_SetString(PyExc_TypeError,"block item must be integer");
+ return -1;
+ }
+ ((long*)(b->block))[i]=PyInt_AsLong(v);
+ return 0;
+}
+
+static int block_ass_slice(PyBlockObject *b,Py_ssize_t i,Py_ssize_t j,PyObject *v)
+{ Py_ssize_t n,k;
+ long *p=b->block;
+ if(j>b->length/4) j=b->length/4;
+ if(i<0||i>j)
+ { PyErr_SetString(PyExc_IndexError,"block index out of range");
+ return -1;
+ }
+ if(!PyList_Check(v)) goto fail;
+ n=PyList_Size(v);
+ if(n>j-i) n=j-i;
+ for(k=0;k<n;k++)
+ { PyObject *q=PyList_GetItem(v,k);
+ if(!PyInt_Check(q)) goto fail;
+ p[i+k]=PyInt_AsLong(q);
+ }
+ for(;k<j-i;k++) p[i+k]=0;
+ return 0;
+ fail:PyErr_SetString(PyExc_TypeError,"block slice must be integer list");
+ return -1;
+}
+
+static PySequenceMethods block_as_sequence=
+{ (inquiry)block_len, /*sq_length*/
+ (binaryfunc)block_concat, /*sq_concat*/
+ (ssizeargfunc)block_repeat, /*sq_repeat*/
+ (ssizeargfunc)block_item, /*sq_item*/
+ (ssizessizeargfunc)block_slice, /*sq_slice*/
+ (ssizeobjargproc)block_ass_item, /*sq_ass_item*/
+ (ssizessizeobjargproc)block_ass_slice, /*sq_ass_slice*/
+};
+
+static PyObject *PyBlock_GetAttr(PyBlockObject *s,char *name)
+{
+ if (!strcmp(name, "length")) return PyInt_FromLong((long)s->length);
+ if (!strcmp(name, "start")) return PyInt_FromLong((long)s->block);
+ if (!strcmp(name,"end")) return PyInt_FromLong(((long)(s->block)+s->length));
+ if (!strcmp(name, "__members__"))
+ { PyObject *list = PyList_New(3);
+ if (list)
+ { PyList_SetItem(list, 0, PyString_FromString("length"));
+ PyList_SetItem(list, 1, PyString_FromString("start"));
+ PyList_SetItem(list, 2, PyString_FromString("end"));
+ if (PyErr_Occurred()) { Py_DECREF(list);list = NULL;}
+ }
+ return list;
+ }
+ return Py_FindMethod(PyBlock_Methods, (PyObject*) s,name);
+}
+
+static void PyBlock_Dealloc(PyBlockObject *b)
+{
+ if(b->heap) {
+ if (b->heap)
+ ;
+ else
+ PyMem_DEL(b->block);
+ }
+ PyMem_DEL(b);
+}
+
+static PyTypeObject PyBlockType=
+{ PyObject_HEAD_INIT(&PyType_Type)
+ 0, /*ob_size*/
+ "block", /*tp_name*/
+ sizeof(PyBlockObject), /*tp_size*/
+ 0, /*tp_itemsize*/
+ /* methods */
+ (destructor)PyBlock_Dealloc, /*tp_dealloc*/
+ 0, /*tp_print*/
+ (getattrfunc)PyBlock_GetAttr, /*tp_getattr*/
+ 0, /*tp_setattr*/
+ 0, /*tp_compare*/
+ 0, /*tp_repr*/
+ 0, /*tp_as_number*/
+ &block_as_sequence, /*tp_as_sequence*/
+ 0, /*tp_as_mapping*/
+ 0, /*tp_hash*/
+};
+
+/* swi commands */
+
+static PyObject *swi_swi(PyObject *self,PyObject *args)
+{ PyObject *name,*format,*result,*v;
+ int swino,carry,rno=0,j,n;
+ char *swiname,*fmt,*outfmt;
+ _kernel_swi_regs r;
+ PyBlockObject *ao;
+ if(args==NULL||!PyTuple_Check(args)||(n=PyTuple_Size(args))<2)
+ { PyErr_BadArgument(); return NULL;}
+ name=PyTuple_GetItem(args,0);
+ if(!PyArg_Parse(name,"i",&swino))
+ { PyErr_Clear();
+ if(!PyArg_Parse(name,"s",&swiname)) return NULL;
+ e=xos_swi_number_from_string(swiname,&swino);
+ if(e) return swi_oserror();
+ }
+ format=PyTuple_GetItem(args,1);
+ if(!PyArg_Parse(format,"s",&fmt)) return NULL;
+ j=2;
+ for(;;fmt++)
+ { switch(*fmt)
+ { case '.': rno++;continue;
+ case ';':case 0: goto swicall;
+ case '0':case '1':case '2':case '3':case '4':
+ case '5':case '6':case '7':case '8':case '9':
+ r.r[rno++]=*fmt-'0';continue;
+ case '-':r.r[rno++]=-1;continue;
+ }
+ if(j>=n) return swi_error("Too few arguments");
+ v=PyTuple_GetItem(args,j++);
+ switch(*fmt)
+ { case 'i':if(!PyArg_Parse(v,"i",&r.r[rno])) return NULL;
+ break;
+ case 's':if(!PyArg_Parse(v,"s",(char**)(&r.r[rno]))) return NULL;
+ break;
+ case 'b':if(!PyArg_Parse(v,"O",(PyObject**)&ao)) return NULL;
+ if(!PyBlock_Check(v)) return swi_error("Not a block");
+ r.r[rno]=(int)(ao->block);
+ break;
+ case 'e':if(!PyArg_Parse(v,"O",(PyObject**)&ao)) return NULL;
+ if(!PyBlock_Check(v)) return swi_error("Not a block");
+ r.r[rno]=(int)(ao->block)+ao->length;
+ break;
+ default:return swi_error("Odd format character");
+ }
+ rno++;
+ }
+ swicall:e=(os_error*)_kernel_swi_c(swino,&r,&r,&carry);
+ if(e) return swi_oserror();
+ if(*fmt==0) { Py_INCREF(Py_None);return Py_None;}
+ n=0;
+ for(outfmt=++fmt;*outfmt;outfmt++) switch(*outfmt)
+ { case 'i':case 's':case '*':n++;break;
+ case '.':break;
+ default:return swi_error("Odd format character");
+ }
+ if(n==0) { Py_INCREF(Py_None);return Py_None;}
+ if(n!=1)
+ { result=PyTuple_New(n);
+ if(!result) return NULL;
+ }
+ rno=0;j=0;
+ for(;*fmt;fmt++)
+ { switch(*fmt)
+ { case 'i':v=PyInt_FromLong((long)r.r[rno++]); break;
+ case 's':v=PyString_FromString((char*)(r.r[rno++])); break;
+ case '.':rno++; continue;
+ case '*':v=PyInt_FromLong((long)carry); break;
+ }
+ if(!v) goto fail;
+ if(n==1) return v;
+ PyTuple_SetItem(result,j,v);
+ j++;
+ }
+ return result;
+ fail:Py_DECREF(result);return 0;
+}
+
+static PyObject *swi_string(PyObject *self, PyObject *arg)
+{ char *s;
+ int l=-1;
+ if(!PyArg_ParseTuple(arg,"i|i",(unsigned int *)&s, &l)) return NULL;
+ if (l==-1)
+ l = strlen(s);
+ return PyString_FromStringAndSize((char*)s, l);
+}
+
+static char swi_string__doc__[] =
+"string(address[, length]) -> string\n\
+Read a null terminated string from the given address.";
+
+
+static PyObject *swi_integer(PyObject *self, PyObject *arg)
+{ int *i;
+
+ if(!PyArg_ParseTuple(arg,"i",(unsigned int *)&i))
+ return NULL;
+ return PyInt_FromLong(*i);
+}
+
+static char swi_integer__doc__[] =
+"integer(address) -> string\n\
+Read an integer from the given address.";
+
+
+static PyObject *swi_integers(PyObject *self, PyObject *arg)
+{ int *i;
+ int c=-1;
+ PyObject *result, *result1;
+
+ if(!PyArg_ParseTuple(arg,"i|i",(unsigned int *)&i, &c)) return NULL;
+ result=PyList_New(0);
+ if (result) {
+ while ( c>0 || (c==-1 && *i) ) {
+ result1 = PyInt_FromLong((long)*i);
+ if (!result1) {
+ Py_DECREF(result);
+ return NULL;
+ }
+ if (PyList_Append(result, result1)!=0) {
+ Py_DECREF(result);
+ Py_DECREF(result1);
+ return NULL;
+ };
+ i++;
+ if (c!=-1)
+ c--;
+ }
+ }
+ return result;
+}
+
+static char swi_integers__doc__[] =
+"integers(address[, count]) -> string\n\
+Either read a null terminated list of integers or\n\
+a list of given length from the given address.";
+
+
+static PyObject *swi_tuples(PyObject *self, PyObject *arg)
+{
+ unsigned char *i; /* points to current */
+ int c=-1, l=4, j, zero; /* count, length, index */
+ PyObject *result, *result1, *result11;
+
+ if(!PyArg_ParseTuple(arg,"i|ii",(unsigned int *)&i, &l, &c)) return NULL;
+ result=PyList_New(0);
+ if (result) {
+ while (c) {
+ result1 = PyTuple_New(l);
+ if (!result1) {
+ Py_DECREF(result);
+ return NULL;
+ }
+ zero = (c==-1); /* check for zeros? */
+ for(j=0;j<l;j++) {
+ if (zero && *i)
+ zero = 0; /* non-zero found */
+ result11 = PyInt_FromLong((long)(*i));
+ if (!result11) {
+ Py_DECREF(result);
+ return NULL;
+ }
+ PyTuple_SetItem(result1, j, result11);
+ i++;
+ }
+ if (c==-1 && zero) {
+ Py_DECREF(result1);
+ c = 0;
+ break;
+ }
+ if (PyList_Append(result, result1)!=0) {
+ Py_DECREF(result1);
+ Py_DECREF(result);
+ return NULL;
+ }
+ if (c!=-1)
+ c--;
+ }
+ }
+ return result;
+}
+
+static char swi_tuples__doc__[] =
+"tuples(address[, length=4[, count]]) -> string\n\
+Either read a null terminated list of byte tuples or\n\
+a list of given length from the given address.";
+
+
+static PyObject *swi_tuple(PyObject *self, PyObject *arg)
+{
+ unsigned char *i; /* points to current */
+ int c=1, j;
+ PyObject *result, *result1;
+
+ if(!PyArg_ParseTuple(arg,"i|i",(unsigned int *)&i, &c)) return NULL;
+ result = PyTuple_New(c);
+ if (!result)
+ return NULL;
+ for(j=0;j<c;j++) {
+ result1 = PyInt_FromLong((long)(i[j]));
+ if (!result1) {
+ Py_DECREF(result);
+ return NULL;
+ }
+ PyTuple_SetItem(result, j, result1);
+ }
+ return result;
+}
+
+static char swi_tuple__doc__[] =
+"tuple(address[, count=1]]) -> tuple\n\
+Read count bytes from given address.";
+
+
+static PyMethodDef SwiMethods[]=
+{ { "swi", swi_swi, METH_VARARGS},
+ { "block", PyBlock_New, METH_VARARGS},
+ { "register", PyRegister, METH_VARARGS},
+ { "string", swi_string, METH_VARARGS, swi_string__doc__},
+ { "integer", swi_integer, METH_VARARGS, swi_integer__doc__},
+ { "integers", swi_integers, METH_VARARGS, swi_integers__doc__},
+ { "tuples", swi_tuples, METH_VARARGS, swi_tuples__doc__},
+ { "tuple", swi_tuple, METH_VARARGS, swi_tuple__doc__},
+ { NULL,NULL,0,NULL} /* Sentinel */
+};
+
+
+void initswi()
+{ PyObject *m, *d;
+ m = Py_InitModule("swi", SwiMethods);
+ d = PyModule_GetDict(m);
+ SwiError=PyErr_NewException("swi.error", NULL, NULL);
+ PyDict_SetItemString(d,"error",SwiError);
+ ArgError=PyErr_NewException("swi.ArgError", NULL, NULL);
+ PyDict_SetItemString(d,"ArgError",ArgError);
+}