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#include <nfc.h>
static VALUE allocate(VALUE klass) {
nfc_context * context;
nfc_init(&context);
return Data_Wrap_Struct(klass, NULL, nfc_exit, context);
}
static VALUE open_dev(VALUE self, VALUE name)
{
nfc_context * ctx;
nfc_device * dev;
VALUE device;
Data_Get_Struct(self, nfc_context, ctx);
if (NIL_P(name)) {
dev = nfc_open(ctx, NULL);
} else {
dev = nfc_open(ctx, StringValuePtr(name));
}
if (NULL == dev)
rb_raise(rb_eRuntimeError, "Unable to open the device");
if(nfc_initiator_init(dev) < 0)
rb_raise(rb_eRuntimeError, "Could not initialize device");
device = Data_Wrap_Struct(cNfcDevice, 0, nfc_close, dev);
rb_iv_set(device, "@context", self);
return device;
}
static VALUE devices(VALUE self, VALUE len)
{
nfc_context *ctx;
nfc_connstring * strs;
size_t found, i;
VALUE devs;
Data_Get_Struct(self, nfc_context, ctx);
strs = malloc(sizeof(nfc_connstring) * len);
found = nfc_list_devices(ctx, strs, 10);
devs = rb_ary_new2(found);
for (i = 0; i < found; i++) {
rb_ary_push(devs, rb_str_new2(strs[i]));
}
free(strs);
return devs;
}
void init_context()
{
VALUE cContext = rb_define_class_under(mNfc, "Context", rb_cObject);
rb_define_alloc_func(cContext, allocate);
rb_define_method(cContext, "devices", devices, 1);
rb_define_method(cContext, "open", open_dev, 1);
}
/* vim: set noet sws=4 sw=4: */
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