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/*
int PROG_ARGC
char **PROG_ARGV
Some C function receive argc and argv from C main function.
This file provides typemaps which pass Ruby ARGV contents
as argc and argv to C function.
*/
// argc and argv
%typemap(in,numinputs=0) int PROG_ARGC {
$1 = RARRAY_LEN(rb_argv) + 1;
}
%typemap(in,numinputs=0) char **PROG_ARGV {
int i, n;
VALUE ary = rb_eval_string("[$0] + ARGV");
n = RARRAY_LEN(ary);
$1 = (char **)malloc(n + 1);
for (i = 0; i < n; i++) {
VALUE v = rb_obj_as_string(RARRAY_PTR(ary)[i]);
$1[i] = (char *)malloc(RSTRING_LEN(v) + 1);
strcpy($1[i], RSTRING_PTR(v));
}
}
%typemap(freearg) char **PROG_ARGV {
int i, n = RARRAY_LEN(rb_argv) + 1;
for (i = 0; i < n; i++) free($1[i]);
free($1);
}
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