119 lines
3 KiB
OpenEdge ABL
119 lines
3 KiB
OpenEdge ABL
/* Implementing buffer protocol typemaps */
|
|
|
|
/* %pybuffer_mutable_binary(TYPEMAP, SIZE)
|
|
*
|
|
* Macro for functions accept mutable buffer pointer with a size.
|
|
* This can be used for both input and output. For example:
|
|
*
|
|
* %pybuffer_mutable_binary(char *buff, int size);
|
|
* void foo(char *buff, int size) {
|
|
* for(int i=0; i<size; ++i)
|
|
* buff[i]++;
|
|
* }
|
|
*/
|
|
|
|
%define %pybuffer_mutable_binary(TYPEMAP, SIZE)
|
|
%typemap(in) (TYPEMAP, SIZE) {
|
|
int res; Py_ssize_t size = 0; void *buf = 0;
|
|
Py_buffer view;
|
|
res = PyObject_GetBuffer($input, &view, PyBUF_WRITABLE);
|
|
if (res < 0) {
|
|
PyErr_Clear();
|
|
%argument_fail(res, "(TYPEMAP, SIZE)", $symname, $argnum);
|
|
}
|
|
size = view.len;
|
|
buf = view.buf;
|
|
PyBuffer_Release(&view);
|
|
$1 = ($1_ltype) buf;
|
|
$2 = ($2_ltype) (size/sizeof($*1_type));
|
|
}
|
|
%enddef
|
|
|
|
/* %pybuffer_mutable_string(TYPEMAP)
|
|
*
|
|
* Macro for functions accept mutable zero terminated string pointer.
|
|
* This can be used for both input and output. For example:
|
|
*
|
|
* %pybuffer_mutable_string(char *str);
|
|
* void foo(char *str) {
|
|
* while(*str) {
|
|
* *str = toupper(*str);
|
|
* str++;
|
|
* }
|
|
*/
|
|
|
|
%define %pybuffer_mutable_string(TYPEMAP)
|
|
%typemap(in) (TYPEMAP) {
|
|
int res; void *buf = 0;
|
|
Py_buffer view;
|
|
res = PyObject_GetBuffer($input, &view, PyBUF_WRITABLE);
|
|
if (res < 0) {
|
|
PyErr_Clear();
|
|
%argument_fail(res, "(TYPEMAP)", $symname, $argnum);
|
|
}
|
|
buf = view.buf;
|
|
PyBuffer_Release(&view);
|
|
$1 = ($1_ltype) buf;
|
|
}
|
|
%enddef
|
|
|
|
/* pybuffer_binary(TYPEMAP, SIZE)
|
|
*
|
|
* Macro for functions accept read only buffer pointer with a size.
|
|
* This must be used for input. For example:
|
|
*
|
|
* %pybuffer_binary(char *buff, int size);
|
|
* int foo(char *buff, int size) {
|
|
* int count = 0;
|
|
* for(int i=0; i<size; ++i)
|
|
* if (0==buff[i]) count++;
|
|
* return count;
|
|
* }
|
|
*/
|
|
|
|
%define %pybuffer_binary(TYPEMAP, SIZE)
|
|
%typemap(in) (TYPEMAP, SIZE) {
|
|
int res; Py_ssize_t size = 0; const void *buf = 0;
|
|
Py_buffer view;
|
|
res = PyObject_GetBuffer($input, &view, PyBUF_CONTIG_RO);
|
|
if (res < 0) {
|
|
PyErr_Clear();
|
|
%argument_fail(res, "(TYPEMAP, SIZE)", $symname, $argnum);
|
|
}
|
|
size = view.len;
|
|
buf = view.buf;
|
|
PyBuffer_Release(&view);
|
|
$1 = ($1_ltype) buf;
|
|
$2 = ($2_ltype) (size / sizeof($*1_type));
|
|
}
|
|
%enddef
|
|
|
|
/* %pybuffer_string(TYPEMAP)
|
|
*
|
|
* Macro for functions accept read only zero terminated string pointer.
|
|
* This can be used for input. For example:
|
|
*
|
|
* %pybuffer_string(char *str);
|
|
* int foo(char *str) {
|
|
* int count = 0;
|
|
* while(*str) {
|
|
* if (isalnum(*str))
|
|
* count++;
|
|
* str++;
|
|
* }
|
|
*/
|
|
|
|
%define %pybuffer_string(TYPEMAP)
|
|
%typemap(in) (TYPEMAP) {
|
|
int res; const void *buf = 0;
|
|
Py_buffer view;
|
|
res = PyObject_GetBuffer($input, &view, PyBUF_CONTIG_RO);
|
|
if (res < 0) {
|
|
PyErr_Clear();
|
|
%argument_fail(res, "(TYPEMAP)", $symname, $argnum);
|
|
}
|
|
buf = view.buf;
|
|
PyBuffer_Release(&view);
|
|
$1 = ($1_ltype) buf;
|
|
}
|
|
%enddef
|