55533ed8c1
Previously anything passed to an I2c::write() or Spi::write() function in node.js that wasn't a node::Buffer or an object would likely cause a segfault later on during future calls. This change calls node::Buffer::HasInstance(obj) to make sure the buffer is valid prior to grabbing it's data Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
82 lines
2.0 KiB
OpenEdge ABL
82 lines
2.0 KiB
OpenEdge ABL
%module (docstring="Javascript interface to libmraa") mraa
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%feature("autodoc", "3");
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%include carrays.i
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%include cpointer.i
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%array_class(uint8_t, uint8Array);
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%inline %{
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#include <node_buffer.h>
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%}
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%typemap(in) (const uint8_t *data, int length) {
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if (!node::Buffer::HasInstance($input)) {
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SWIG_exception_fail(SWIG_ERROR, "Expected a node Buffer");
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}
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$1 = (uint8_t*) node::Buffer::Data($input);
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$2 = node::Buffer::Length($input);
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}
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%typemap(in) (uint8_t *txBuf, int length) {
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if (!node::Buffer::HasInstance($input)) {
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SWIG_exception_fail(SWIG_ERROR, "Expected a node Buffer");
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}
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$1 = (uint8_t*) node::Buffer::Data($input);
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$2 = node::Buffer::Length($input);
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}
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%typemap(in) (v8::Handle<v8::Function> func) {
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$1 = v8::Local<v8::Function>::Cast($input);
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}
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namespace mraa {
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class Spi;
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%typemap(out) uint8_t*
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{
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%#if SWIG_V8_VERSION > 0x032872
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$result = node::Buffer::New((char*) $1, arg3);
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%#else
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$result = node::Buffer::New((char*) $1, arg3)->handle_;
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%#endif
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}
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}
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%newobject I2c::read(uint8_t *data, int length);
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%newobject Spi::write(uint8_t *data, int length);
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%typemap(in) (uint8_t *data, int length) {
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int x;
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int ecode = SWIG_AsVal_int($input, &x);
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if (!SWIG_IsOK(ecode)) {
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SWIG_exception_fail(SWIG_ArgError(ecode), "Expected an int");
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}
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$2 = x;
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if ($2 < 0) {
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SWIG_exception_fail(SWIG_ERROR, "Positive integer expected");
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SWIGV8_RETURN(SWIGV8_UNDEFINED());
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}
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$1 = (uint8_t*) malloc($2 * sizeof(uint8_t));
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}
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%typemap(argout) (uint8_t *data, int length) {
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if (result < 0) { /* Check for I/O error */
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free($1);
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SWIG_exception_fail(SWIG_ERROR, "I2c write failed");
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SWIGV8_RETURN(SWIGV8_UNDEFINED());
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}
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%#if SWIG_V8_VERSION > 0x032872
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$result = node::Buffer::New((char*) $1, result);
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%#else
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$result = node::Buffer::New((char*) $1, result)->handle_;
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%#endif
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free($1);
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}
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%include ../mraa.i
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%init %{
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//Adding mraa_init() to the module initialisation process
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mraa_init();
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%}
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