ETERM *body_set_position(ETERM *fromp, ETERM *argp) {
// get the args
ETERM *space_refp = erl_element(1, argp);
ETERM *idp = erl_element(2, argp);
ETERM *vectorp = erl_element(3, argp);
ETERM *xp = erl_element(1, vectorp);
ETERM *yp = erl_element(2, vectorp);
erlmunk_space *s = NULL;
int space_id = ERL_REF_NUMBER(space_refp);
HASH_FIND_INT(erlmunk_spaces, &space_id, s);
int body_id = ERL_INT_VALUE(idp);
erlmunk_body *b = NULL;
HASH_FIND_INT(s->bodies, &body_id, b);
if (b == NULL)
return NULL;
cpBodySetPosition(b->body, cpv(ERL_FLOAT_VALUE(xp),
ERL_FLOAT_VALUE(yp)));
// DEBUGF(("body_set_position(x: %f, y: %f) has succeeded",
// ERL_FLOAT_VALUE(xp), ERL_FLOAT_VALUE(yp)));
return NULL;
}
ETERM *body_update_position(ETERM *fromp, ETERM *argp) {
// get the args
ETERM *space_refp = erl_element(1, argp);
ETERM *idp = erl_element(2, argp);
ETERM *deltap = erl_element(3, argp);
erlmunk_space *s = NULL;
int space_id = ERL_REF_NUMBER(space_refp);
HASH_FIND_INT(erlmunk_spaces, &space_id, s);
int body_id = ERL_INT_VALUE(idp);
erlmunk_body *b = NULL;
HASH_FIND_INT(s->bodies, &body_id, b);
if (b == NULL)
return NULL;
cpVect position = cpBodyGetPosition(b->body);
float angle = deg_to_rad(cpBodyGetAngle(b->body));
cpVect angleV = cpvforangle(angle);
cpVect projection = cpvmult(angleV, ERL_FLOAT_VALUE(deltap));
cpVect new_position = cpvadd(projection, position);
cpBodySetPosition(b->body, new_position);
// DEBUGF(("body_update_position(x: %f, y: %f, delta: %f) has succeeded (x: %f, y: %f)",
// position.x, position.y, ERL_FLOAT_VALUE(deltap),
// new_position.x, new_position.y));
return NULL;
}
ETERM *space_add_body(ETERM *fromp, ETERM *argp) {
// get the args
ETERM *space_refp = erl_element(1, argp);
ETERM *idp = erl_element(2, argp);
ETERM *massp = erl_element(3, argp);
// ETERM *inertiap = erl_element(4, argp);
erlmunk_space *s;
int space_id = ERL_REF_NUMBER(space_refp);
HASH_FIND_INT(erlmunk_spaces, &space_id, s);
int object_id = ERL_INT_VALUE(idp);
cpBody *body = cpSpaceAddBody(s->space,
cpBodyNew(ERL_FLOAT_VALUE(massp),
INFINITY));
// the body is created inactive, it is explicitly activated
// when all it's values have been set.
cpBodySleep(body);
erlmunk_body_data *data = malloc(sizeof(erlmunk_body_data));
data->id = object_id;
data->term = NULL;
cpBodySetUserData(body, (cpDataPointer) data);
space_add_body_hash(s, object_id, body);
return NULL;
}
ETERM *body_apply_impulse(ETERM *fromp, ETERM *argp) {
// get the args
ETERM *space_refp = erl_element(1, argp);
ETERM *idp = erl_element(2, argp);
ETERM *impulsep = erl_element(3, argp);
erlmunk_space *s;
int space_id = ERL_REF_NUMBER(space_refp);
HASH_FIND_INT(erlmunk_spaces, &space_id, s);
int body_id = ERL_INT_VALUE(idp);
erlmunk_body *b;
HASH_FIND_INT(s->bodies, &body_id, b);
if (b == NULL)
return NULL;
// apply the impulse at the center of the body and along it's current angle
float angle = deg_to_rad(cpBodyGetAngle(b->body));
cpVect angleV = cpvforangle(angle);
cpVect impulse = cpvmult(angleV, ERL_FLOAT_VALUE(impulsep));
cpBodyApplyImpulseAtWorldPoint(b->body, impulse, angleV);
return NULL;
}
static VALUE erlix_float_to_fix(VALUE self){
ErlixTerm *efloat;
double l;
Data_Get_Struct(self,ErlixTerm,efloat);
l=ERL_FLOAT_VALUE(efloat->term);
return rb_float_new(l);
}
ETERM *body_set_collision_circle(ETERM *fromp, ETERM *argp) {
// get the args
ETERM *space_refp = erl_element(1, argp);
ETERM *idp = erl_element(2, argp);
ETERM *radiusp = erl_element(3, argp);
ETERM *collision_typep = erl_element(4, argp);
erlmunk_space *s;
int space_id = ERL_REF_NUMBER(space_refp);
HASH_FIND_INT(erlmunk_spaces, &space_id, s);
int body_id = ERL_INT_VALUE(idp);
erlmunk_body *b;
HASH_FIND_INT(s->bodies, &body_id, b);
if (b == NULL)
return NULL;
cpShape *shape = cpSpaceAddShape(s->space,
cpCircleShapeNew(b->body, ERL_FLOAT_VALUE(radiusp),
cpvzero));
cpShapeSetCollisionType(shape, ERL_INT_VALUE(collision_typep));
// DEBUGF(("body_set_collision_circle has succeeded"));
return NULL;
}
/*
* Create a FLOAT.
*/
ETERM *erl_mk_float (double d)
{
ETERM *ep;
ep = erl_alloc_eterm(ERL_FLOAT);
ERL_COUNT(ep) = 1;
ERL_FLOAT_VALUE(ep) = d;
return ep;
}
double val(ETERM *arg) {
if (ERL_IS_INTEGER(arg))
return ERL_INT_VALUE(arg);
else if (ERL_IS_FLOAT(arg))
return ERL_FLOAT_VALUE(arg);
else {
exit(EXIT_FAILURE);
return 0;
}
}
ETERM *space_add_boundaries(ETERM *fromp, ETERM *argp) {
// get the args
ETERM *space_refp = erl_element(1, argp);
ETERM *lower_leftp = erl_element(2, argp);
ETERM *lower_rightp = erl_element(3, argp);
ETERM *upper_leftp = erl_element(4, argp);
ETERM *upper_rightp = erl_element(5, argp);
ETERM *collision_categoryp = erl_element(6, argp);
ETERM *datap = erl_element(7, argp);
erlmunk_space *s;
int space_id = ERL_REF_NUMBER(space_refp);
HASH_FIND_INT(erlmunk_spaces, &space_id, s);
cpVect lowerLeft = cpv(ERL_FLOAT_VALUE(erl_element(1, lower_leftp)),
ERL_FLOAT_VALUE(erl_element(2, lower_leftp)));
cpVect lowerRight = cpv(ERL_FLOAT_VALUE(erl_element(1, lower_rightp)),
ERL_FLOAT_VALUE(erl_element(2, lower_rightp)));
cpVect upperLeft = cpv(ERL_FLOAT_VALUE(erl_element(1, upper_leftp)),
ERL_FLOAT_VALUE(erl_element(2, upper_leftp)));
cpVect upperRight = cpv(ERL_FLOAT_VALUE(erl_element(1, upper_rightp)),
ERL_FLOAT_VALUE(erl_element(2, upper_rightp)));
// get the static body that comes with the space
cpBody *static_body = cpSpaceGetStaticBody(s->space);
erlmunk_body_data *data = malloc(sizeof(erlmunk_body_data));
data->id = BOUNDARY_BODY_ID;
data->term = erl_copy_term(datap);
cpBodySetUserData(static_body, (cpDataPointer) data);
// bottom
cpShape *bottomBoundaryShape = cpSegmentShapeNew(static_body, lowerLeft, lowerRight, 0.0f);
cpShapeSetCollisionType(bottomBoundaryShape, ERL_INT_VALUE(collision_categoryp));
cpSpaceAddShape(s->space, bottomBoundaryShape);
// top
cpShape *topBoundaryShape = cpSegmentShapeNew(static_body, upperLeft, upperRight, 0.0f);
cpShapeSetCollisionType(topBoundaryShape, ERL_INT_VALUE(collision_categoryp));
cpSpaceAddShape(s->space, topBoundaryShape);
// left
cpShape *leftBoundaryShape = cpSegmentShapeNew(static_body, lowerLeft, upperLeft, 0.0f);
cpShapeSetCollisionType(leftBoundaryShape, ERL_INT_VALUE(collision_categoryp));
cpSpaceAddShape(s->space, leftBoundaryShape);
// right
cpShape *rightBoundaryShape = cpSegmentShapeNew(static_body, lowerRight, upperRight, 0.0f);
cpShapeSetCollisionType(rightBoundaryShape, ERL_INT_VALUE(collision_categoryp));
cpSpaceAddShape(s->space, rightBoundaryShape);
return NULL;
}
ETERM *space_new(ETERM *fromp, ETERM *argp) {
// get the args
ETERM *iterationsp = erl_element(1, argp);
ETERM *gravityp = erl_element(2, argp);
ETERM *gravityxp = erl_element(1, gravityp);
ETERM *gravityyp = erl_element(2, gravityp);
// create the new space
cpSpace *space = cpSpaceNew();
cpSpaceSetIterations(space, ERL_INT_VALUE(iterationsp));
cpSpaceSetGravity(space, cpv(ERL_FLOAT_VALUE(gravityxp),
ERL_FLOAT_VALUE(gravityyp)));
cpSpaceSetSleepTimeThreshold(space, 5.0);
// add it to the hash table
ETERM *ref = erl_mk_node_ref();
erlmunk_space *s = (erlmunk_space *) malloc(sizeof(erlmunk_space));
s->id = ERL_REF_NUMBER(ref);
s->space = space;
s->subscriber_count = 0;
s->subscribers = NULL;
s->bodies = NULL;
HASH_ADD_INT(erlmunk_spaces, id, s);
ETERM *atom_ok = erl_mk_atom("ok");
ETERM **space_new_array = (ETERM **) malloc(sizeof(ETERM*) * 2);
space_new_array[0] = atom_ok;
space_new_array[1] = ref;
ETERM *space_new_tuple = erl_mk_tuple(space_new_array, 2);
free(space_new_array);
ETERM *reply_tuple = erl_mk_reply(fromp, space_new_tuple);
ETERM *gen_cast_tuple = erl_mk_gen_cast(reply_tuple);
return gen_cast_tuple;
}
ETERM *space_subscribe_box(ETERM *fromp, ETERM *argp) {
// get the args
ETERM *space_refp = erl_element(1, argp);
ETERM *subscriber_pidp = erl_element(2, argp);
ETERM *bounding_boxp = erl_element(3, argp);
ETERM *leftp = erl_element(1, bounding_boxp);
ETERM *bottomp = erl_element(2, bounding_boxp);
ETERM *rightp = erl_element(3, bounding_boxp);
ETERM *topp = erl_element(4, bounding_boxp);
erlmunk_space *s;
int space_id = ERL_REF_NUMBER(space_refp);
HASH_FIND_INT(erlmunk_spaces, &space_id, s);
erlmunk_client *client = get_current_client();
space_add_subscriber(s,
client, erl_copy_term(subscriber_pidp),
ERL_FLOAT_VALUE(leftp), ERL_FLOAT_VALUE(bottomp),
ERL_FLOAT_VALUE(rightp), ERL_FLOAT_VALUE(topp));
// DEBUGF(("space_subscribe_box(client fd: %d) has succeeded",
// client->fd));
return NULL;
}
/*
* Create a FLOAT.
*/
ETERM *erl_mk_float (double d)
{
ETERM *ep;
#if defined(HAVE_ISFINITE)
/* Erlang does not handle Inf and NaN, so we return an error
* rather than letting the Erlang VM complain about a bad external
* term. */
if(!isfinite(d)) {
return NULL;
}
#endif
ep = erl_alloc_eterm(ERL_FLOAT);
ERL_COUNT(ep) = 1;
ERL_FLOAT_VALUE(ep) = d;
return ep;
}
ETERM * set_source_rgba(ETERM* arg, int c_node) {
ETERM *r, *g, *b, *a;
cairo_context *ctx = get_cairo_context(arg);
if (ctx) {
r = erl_element(2, arg);
g = erl_element(3, arg);
b = erl_element(4, arg);
a = erl_element(5, arg);
cairo_set_source_rgba(ctx->cr, ERL_FLOAT_VALUE(r), val(g), val(b), val(a));
erl_free_term(r);
erl_free_term(g);
erl_free_term(b);
erl_free_term(a);
return erl_format("{c_node, ~i, ok}", c_node);
} else {
return erl_format("{c_node, ~i, {error, '~s'}}", c_node, ERR_CONTEXT);
}
}
ETERM *body_set_angle(ETERM *fromp, ETERM *argp) {
// get the args
ETERM *space_refp = erl_element(1, argp);
ETERM *idp = erl_element(2, argp);
ETERM *anglep = erl_element(3, argp);
erlmunk_space *s;
int space_id = ERL_REF_NUMBER(space_refp);
HASH_FIND_INT(erlmunk_spaces, &space_id, s);
int body_id = ERL_INT_VALUE(idp);
erlmunk_body *b;
HASH_FIND_INT(s->bodies, &body_id, b);
if (b == NULL)
return NULL;
cpBodySetAngle(b->body, ERL_FLOAT_VALUE(anglep));
// DEBUGF(("body_set_angle(%f) has succeeded", ERL_FLOAT_VALUE(anglep)));
return NULL;
}
int erl_print_term(FILE *fp, const ETERM *ep)
{
int j,i,doquote;
int ch_written = 0; /* counter of written chars */
if ((!fp) || (!ep)) return 0;
/* ASSERT(ep != NULL); */
j = i = doquote = 0;
switch(ERL_TYPE(ep))
{
case ERL_ATOM: {
char* adata = ERL_ATOM_PTR(ep);
/* FIXME: what if some weird locale is in use? */
if (!islower(adata[0]))
doquote = 1;
for (i = 0; !doquote && i < ERL_ATOM_SIZE(ep); i++)
{
doquote = !(isalnum(adata[i]) || (adata[i] == '_'));
}
if (doquote) {
putc('\'', fp);
ch_written++;
}
fputs(adata, fp);
ch_written += ERL_ATOM_SIZE(ep);
if (doquote) {
putc('\'', fp);
ch_written++;
}
break;
}
case ERL_VARIABLE:
if (!isupper((int)ERL_VAR_NAME(ep)[0])) {
doquote = 1;
putc('\'', fp);
ch_written++;
}
fputs(ERL_VAR_NAME(ep), fp);
ch_written += ERL_VAR_LEN(ep);
if (doquote) {
putc('\'', fp);
ch_written++;
}
break;
case ERL_PID:
ch_written += fprintf(fp, "<%s.%d.%d>",
ERL_PID_NODE(ep),
ERL_PID_NUMBER(ep), ERL_PID_SERIAL(ep));
break;
case ERL_PORT:
ch_written += fprintf(fp, "#Port");
break;
case ERL_REF:
ch_written += fprintf(fp, "#Ref");
break;
case ERL_EMPTY_LIST:
ch_written += fprintf(fp, "[]");
break;
case ERL_LIST:
if (is_printable_list(ep)) {
ch_written += print_string(fp, ep);
} else {
putc('[', fp);
ch_written++;
while (ERL_IS_CONS(ep)) {
ch_written += erl_print_term(fp, HEAD(ep));
ep = TAIL(ep);
if (ERL_IS_CONS(ep)) {
putc(',', fp);
ch_written++;
}
}
if (!ERL_IS_EMPTY_LIST(ep)) {
putc('|', fp);
ch_written++;
ch_written += erl_print_term(fp, ep);
}
putc(']', fp);
ch_written++;
}
break;
case ERL_TUPLE:
putc('{', fp);
ch_written++;
for (i=0; i < ERL_TUPLE_SIZE(ep); i++) {
ch_written += erl_print_term(fp, ERL_TUPLE_ELEMENT(ep, j++) );
if (i != ERL_TUPLE_SIZE(ep)-1) {
putc(',', fp);
ch_written++;
}
}
putc('}', fp);
ch_written++;
break;
case ERL_BINARY: {
int sz = (ERL_BIN_SIZE(ep) > 20) ? 20 : ERL_BIN_SIZE(ep);
unsigned char *ptr = ERL_BIN_PTR(ep);
ch_written += fprintf(fp, "#Bin<");
for (i = 0; i < sz; i++) {
putc(ptr[i], fp); ch_written++;
}
if (sz == 20) ch_written += fprintf(fp, "(%d)....>", ERL_BIN_SIZE(ep)-20);
else ch_written += fprintf(fp, ">");
break;
}
case ERL_INTEGER:
case ERL_SMALL_BIG:
ch_written += fprintf(fp, "%d", ERL_INT_VALUE(ep));
break;
case ERL_U_INTEGER:
case ERL_U_SMALL_BIG:
ch_written += fprintf(fp, "%d", ERL_INT_UVALUE(ep));
break;
case ERL_LONGLONG:
case ERL_U_LONGLONG:
ch_written += fprintf(fp, "%lld", ERL_LL_UVALUE(ep));
break;
case ERL_FLOAT:
ch_written += fprintf(fp, "%f", ERL_FLOAT_VALUE(ep));
break;
case ERL_FUNCTION:
ch_written += fprintf(fp, "#Fun<");
ch_written += erl_print_term(fp, ERL_FUN_MODULE(ep));
putc('.', fp);
ch_written++;
ch_written += erl_print_term(fp, ERL_FUN_INDEX(ep));
putc('.', fp);
ch_written++;
ch_written += erl_print_term(fp, ERL_FUN_UNIQ(ep));
putc('>', fp);
ch_written++;
break;
default:
ch_written = -10000;
erl_err_msg("<ERROR> erl_print_term: Bad type of term !");
}
return ch_written;
}
/*
* FIXME: Deep (the whole tree) or shallow (just the top term) copy?
* The documentation never says, but the code as written below will
* make a deep copy. This should be documented.
*/
ETERM *erl_copy_term(const ETERM *ep)
{
int i;
ETERM *cp;
if (!ep) return NULL;
/* ASSERT(ep != NULL); */
cp = erl_alloc_eterm(ERL_TYPE(ep));
ERL_COUNT(cp) = 1;
switch(ERL_TYPE(cp)) {
case ERL_INTEGER:
case ERL_SMALL_BIG:
ERL_INT_VALUE(cp) = ERL_INT_VALUE(ep);
break;
case ERL_U_INTEGER:
case ERL_U_SMALL_BIG:
ERL_INT_UVALUE(cp) = ERL_INT_UVALUE(ep);
break;
case ERL_LONGLONG:
ERL_LL_VALUE(cp) = ERL_LL_VALUE(ep);
break;
case ERL_U_LONGLONG:
ERL_LL_UVALUE(cp) = ERL_LL_UVALUE(ep);
break;
case ERL_FLOAT:
ERL_FLOAT_VALUE(cp) = ERL_FLOAT_VALUE(ep);
break;
case ERL_ATOM:
if (!erl_atom_copy(&cp->uval.aval.d, &ep->uval.aval.d))
{
erl_free_term(cp);
erl_errno = ENOMEM;
return NULL;
}
break;
case ERL_PID:
/* FIXME: First copy the bit pattern, then duplicate the node
name and plug in. Somewhat ugly (also done with port and
ref below). */
memcpy(&cp->uval.pidval, &ep->uval.pidval, sizeof(Erl_Pid));
erl_atom_copy(&cp->uval.pidval.node, &ep->uval.pidval.node);
ERL_COUNT(cp) = 1;
break;
case ERL_PORT:
memcpy(&cp->uval.portval, &ep->uval.portval, sizeof(Erl_Port));
erl_atom_copy(&cp->uval.portval.node, &ep->uval.portval.node);
ERL_COUNT(cp) = 1;
break;
case ERL_REF:
memcpy(&cp->uval.refval, &ep->uval.refval, sizeof(Erl_Ref));
erl_atom_copy(&cp->uval.refval.node, &ep->uval.refval.node);
ERL_COUNT(cp) = 1;
break;
case ERL_LIST:
HEAD(cp) = erl_copy_term(HEAD(ep));
TAIL(cp) = erl_copy_term(TAIL(ep));
break;
case ERL_EMPTY_LIST:
break;
case ERL_TUPLE:
i = ERL_TUPLE_SIZE(cp) = ERL_TUPLE_SIZE(ep);
ERL_TUPLE_ELEMS(cp) = (ETERM**) erl_malloc(i * sizeof(ETERM*));
for(i=0; i < ERL_TUPLE_SIZE(ep); i++)
ERL_TUPLE_ELEMENT(cp,i) = erl_copy_term(ERL_TUPLE_ELEMENT(ep, i));
break;
case ERL_BINARY:
ERL_BIN_SIZE(cp) = ERL_BIN_SIZE(ep);
ERL_BIN_PTR(cp) = (unsigned char *) erl_malloc(ERL_BIN_SIZE(ep));
memcpy(ERL_BIN_PTR(cp), ERL_BIN_PTR(ep), ERL_BIN_SIZE(ep));
break;
case ERL_FUNCTION:
i = ERL_CLOSURE_SIZE(cp) = ERL_CLOSURE_SIZE(ep);
ERL_FUN_ARITY(cp) = ERL_FUN_ARITY(ep);
ERL_FUN_NEW_INDEX(cp) = ERL_FUN_NEW_INDEX(ep);
ERL_FUN_INDEX(cp) = erl_copy_term(ERL_FUN_INDEX(ep));
ERL_FUN_UNIQ(cp) = erl_copy_term(ERL_FUN_UNIQ(ep));
ERL_FUN_CREATOR(cp) = erl_copy_term(ERL_FUN_CREATOR(ep));
ERL_FUN_MODULE(cp) = erl_copy_term(ERL_FUN_MODULE(ep));
memcpy(ERL_FUN_MD5(cp), ERL_FUN_MD5(ep), sizeof(ERL_FUN_MD5(ep)));
ERL_CLOSURE(cp) = (ETERM**) erl_malloc(i * sizeof(ETERM*));
for(i=0; i < ERL_CLOSURE_SIZE(ep); i++)
ERL_CLOSURE_ELEMENT(cp,i) =
erl_copy_term(ERL_CLOSURE_ELEMENT(ep, i));
break;
default:
erl_err_msg("<ERROR> erl_copy_term: wrong type encountered !");
erl_free_term(cp);
return (ETERM *) NULL;
}
return cp;
}
int erl_sprint_term(char *buf, const ETERM *ep)
{
int j,i,doquote;
int ch_written = 0; /* counter of written chars */
if ((!buf) || (!ep)) return 0;
/* ASSERT(ep != NULL); */
j = i = doquote = 0;
switch(ERL_TYPE(ep))
{
case ERL_ATOM:
/* FIXME: what if some weird locale is in use? */
if (!islower((int)ERL_ATOM_PTR(ep)[0]))
doquote = 1;
for (i = 0; !doquote && i < ERL_ATOM_SIZE(ep); i++)
{
doquote = !(isalnum((int)ERL_ATOM_PTR(ep)[i])
|| (ERL_ATOM_PTR(ep)[i] == '_'));
}
if (doquote) {
*buf++ = '\'';
ch_written++;
}
{
int len = ERL_ATOM_SIZE(ep);
strncpy(buf, ERL_ATOM_PTR(ep), len);
buf += len;
ch_written += len;
}
if (doquote) {
*buf++ = '\'';
ch_written++;
}
break;
case ERL_VARIABLE:
if (!isupper((int)ERL_VAR_NAME(ep)[0])) {
doquote = 1;
*buf++ = '\'';
ch_written++;
}
len = ERL_VAR_LEN(ep);
strncpy(buf, ERL_VAR_NAME(ep), len);
buf += len;
ch_written += len;
if (doquote) {
*buf++ = '\'';
ch_written++;
}
break;
case ERL_PID:
len = sprintf(buf, "<%s.%d.%d>",
ERL_PID_NODE(ep),
ERL_PID_NUMBER(ep), ERL_PID_SERIAL(ep));
buf += len;
ch_written += len;
break;
case ERL_PORT:
len = sprintf(buf , "#Port");
buf += len;
ch_written += len;
break;
case ERL_REF:
len = sprintf(buf , "#Ref");
buf += len;
ch_written += len;
break;
case ERL_EMPTY_LIST:
len = sprintf(buf , "[]");
buf += len;
ch_written += len;
break;
case ERL_LIST:
if (is_printable_list(ep)) {
ch_written += print_string(fp, ep);
} else {
putc('[', fp);
ch_written++;
while (ERL_IS_CONS(ep)) {
ch_written += erl_sprint_term(fp, HEAD(ep));
ep = TAIL(ep);
if (ERL_IS_CONS(ep)) {
putc(',', fp);
ch_written++;
}
}
if (!ERL_IS_EMPTY_LIST(ep)) {
putc('|', fp);
ch_written++;
ch_written += erl_sprint_term(fp, ep);
}
putc(']', fp);
ch_written++;
}
break;
case ERL_TUPLE:
putc('{', fp);
ch_written++;
for (i=0; i < ERL_TUPLE_SIZE(ep); i++) {
ch_written += erl_sprint_term(fp, ERL_TUPLE_ELEMENT(ep, j++) );
if (i != ERL_TUPLE_SIZE(ep)-1) {
putc(',', fp);
ch_written++;
}
}
putc('}', fp);
ch_written++;
break;
case ERL_BINARY:
len = sprintf(buf , "#Bin");
buf += len;
ch_written += len;
break;
case ERL_INTEGER:
case ERL_SMALL_BIG:
len = sprintf(buf , "%d", ERL_INT_VALUE(ep));
buf += len;
ch_written += len;
break;
case ERL_U_INTEGER:
case ERL_U_SMALL_BIG:
len = sprintf(buf , "%d", ERL_INT_UVALUE(ep));
buf += len;
ch_written += len;
break;
case ERL_FLOAT:
len = sprintf(buf , "%f", ERL_FLOAT_VALUE(ep));
buf += len;
ch_written += len;
break;
case ERL_FUNCTION:
len = sprintf(buf , "#Fun<");
buf += len;
ch_written += len;
ch_written += erl_sprint_term(fp, ERL_FUN_MODULE(ep));
putc('.', fp);
ch_written++;
ch_written += erl_sprint_term(fp, ERL_FUN_INDEX(ep));
putc('.', fp);
ch_written++;
ch_written += erl_sprint_term(fp, ERL_FUN_UNIQ(ep));
putc('>', fp);
ch_written++;
break;
default:
ch_written = -10000;
erl_err_msg("<ERROR> erl_sprint_term: Bad type of term !");
}
return ch_written;
}
/*
* Dump (print for debugging) a term. Useful if/when things go wrong.
*/
void
dump_term (FILE *fp, ETERM *t)
{
if (fp == NULL) return;
fprintf(fp, "#<%p ", t);
if(t != NULL)
{
fprintf(fp, "count:%d, type:%d", ERL_COUNT(t), ERL_TYPE(t));
switch(ERL_TYPE(t))
{
case ERL_UNDEF:
fprintf(fp, "==undef");
break;
case ERL_INTEGER:
fprintf(fp, "==int, val:%d", ERL_INT_VALUE(t));
break;
case ERL_U_INTEGER:
fprintf(fp, "==uint, val:%u", ERL_INT_UVALUE(t));
break;
case ERL_FLOAT:
fprintf(fp, "==float, val:%g", ERL_FLOAT_VALUE(t));
break;
case ERL_ATOM:
fprintf(fp, "==atom, name:%p \"%s\"",
ERL_ATOM_PTR(t), ERL_ATOM_PTR(t));
break;
case ERL_BINARY:
fprintf(fp, "==binary, data:%p,%u",
ERL_BIN_PTR(t), ERL_BIN_SIZE(t));
break;
case ERL_PID:
fprintf(fp, "==pid, node:%p \"%s\"",
ERL_PID_NODE(t), ERL_PID_NODE(t));
break;
case ERL_PORT:
fprintf(fp, "==port, node:%p \"%s\"",
ERL_PORT_NODE(t), ERL_PORT_NODE(t));
break;
case ERL_REF:
fprintf(fp, "==ref, node:%p \"%s\"",
ERL_REF_NODE(t), ERL_REF_NODE(t));
break;
case ERL_CONS:
fprintf(fp, "==cons");
fprintf(fp, ", car:");
dump_term(fp, ERL_CONS_HEAD(t));
fprintf(fp, ", cdr:");
dump_term(fp, ERL_CONS_TAIL(t));
break;
case ERL_NIL:
fprintf(fp, "==nil");
break;
case ERL_TUPLE:
fprintf(fp, "==tuple, elems:%p,%u",
ERL_TUPLE_ELEMS(t), ERL_TUPLE_SIZE(t));
{
size_t i;
for(i = 0; i < ERL_TUPLE_SIZE(t); i++)
{
fprintf(fp, "elem[%u]:", i);
dump_term(fp, ERL_TUPLE_ELEMENT(t, i));
}
}
break;
case ERL_VARIABLE:
fprintf(fp, "==variable, name:%p \"%s\"",
ERL_VAR_NAME(t), ERL_VAR_NAME(t));
fprintf(fp, ", value:");
dump_term(fp, ERL_VAR_VALUE(t));
break;
default:
break;
}
}
fprintf(fp, ">");
}
/*
* http://dev.mysql.com/doc/refman/5.1/en/mysql-stmt-execute.html
*
* 6 > odbc:param_query(Ref,
* "INSERT INTO EMPLOYEE (NR, FIRSTNAME, "
* "LASTNAME, GENDER) VALUES(?, ?, ?, ?)",
* [{sql_integer,[2,3,4,5,6,7,8]},
* {{sql_varchar, 20},
* ["John", "Monica", "Ross", "Rachel",
* "Piper", "Prue", "Louise"]},
* {{sql_varchar, 20},
* ["Doe","Geller","Geller", "Green",
* "Halliwell", "Halliwell", "Lane"]},
* {{sql_char, 1}, ["M","F","M","F","T","F","F"]}]).
* {updated, 7}
*/
void
handle_param_query(ETERM *msg)
{
ETERM *query, *params, *p, *tmp, *resp;
MYSQL_STMT *handle;
MYSQL_BIND *bind;
char *q;
int param_count, i;
query = erl_element(2, msg);
q = erl_iolist_to_string(query);
erl_free_term(query);
logmsg("INFO: got param query: %s", q);
params = erl_element(3, msg);
erl_free_term(params);
handle = mysql_stmt_init(&dbh);
if (mysql_stmt_prepare(handle, q, strlen(q))) {
resp = erl_format("{error, {mysql_error, ~i, ~s}}",
mysql_stmt_errno(handle), mysql_stmt_error(handle));
} else {
param_count = mysql_stmt_param_count(handle);
if (param_count != erl_length(params)) {
resp = erl_format("{error, {mysql_error, -1, [expected_params, %d, got_params, %d]}}", param_count, erl_length(params));
} else {
bind = safe_malloc(param_count * sizeof(MYSQL_BIND));
memset(bind, 0, param_count * sizeof(MYSQL_BIND));
for (i = 0, tmp = params;
i < param_count && (p = erl_hd(tmp)) != NULL;
i++, tmp = erl_tl(tmp)) {
ETERM *type, *value;
type = erl_element(1, p);
value = erl_element(2, p);
if (ERL_IS_TUPLE(type)) {
// Parameter Type + Size: {Type, Size}
ETERM *t_type, *t_size;
char *t;
unsigned long size;
t_size = erl_element(2, type);
size = ERL_INT_VALUE(t_size);
bind[i].buffer_length = size;
erl_free_term(t_size);
t_type = erl_element(1, type);
t = (char *)ERL_ATOM_PTR(t_type);
bind[i].length = safe_malloc(sizeof(unsigned long));
if (strncmp(t, NUMERIC_SQL, strlen(NUMERIC_SQL)) == 0) {
int val;
bind[i].buffer_type = MYSQL_TYPE_LONG;
*bind[i].length = sizeof(int);
bind[i].buffer = safe_malloc(*bind[i].length);
memset(bind[i].buffer, 0, *bind[i].length);
val = ERL_INT_VALUE(value);
memcpy(bind[i].buffer, &val, *bind[i].length);
} else if (strncmp(t, DECIMAL_SQL, strlen(DECIMAL_SQL)) == 0) {
char *val;
bind[i].buffer_type = MYSQL_TYPE_STRING;
*bind[i].length = bind[i].buffer_length * sizeof(char);
bind[i].buffer = safe_malloc(*bind[i].length);
memset(bind[i].buffer, 0, *bind[i].length);
val = erl_iolist_to_string(value);
if (val) {
memcpy(bind[i].buffer, val, *bind[i].length);
free(val);
}
} else if (strncmp(t, FLOAT_SQL, strlen(FLOAT_SQL)) == 0) {
float val;
bind[i].buffer_type = MYSQL_TYPE_FLOAT;
*bind[i].length = sizeof(float);
bind[i].buffer = safe_malloc(*bind[i].length);
memset(bind[i].buffer, 0, *bind[i].length);
val = ERL_FLOAT_VALUE(value);
memcpy(bind[i].buffer, &val, *bind[i].length);
} else if (strncmp(t, CHAR_SQL, strlen(CHAR_SQL)) == 0) {
char *val;
bind[i].buffer_type = MYSQL_TYPE_STRING;
*bind[i].length = bind[i].buffer_length * sizeof(char);
bind[i].buffer = safe_malloc(*bind[i].length);
memset(bind[i].buffer, 0, *bind[i].length);
val = erl_iolist_to_string(value);
if (val) {
memcpy(bind[i].buffer, val, *bind[i].length);
free(val);
}
} else if (strncmp(t, VARCHAR_SQL, strlen(VARCHAR_SQL)) == 0) {
(void)bind_string(&bind[i], value, size);
} else {
ETERM *resp;
resp = erl_format("{error, {unknown_sized_type, ~s, ~i}}",
t, bind[i].buffer_length);
write_msg(resp);
erl_free_term(resp);
}
erl_free_term(t_type);
} else {
char *t;
t = (char *)ERL_ATOM_PTR(type);
if (strncmp(t, TIMESTAMP_SQL, strlen(TIMESTAMP_SQL)) == 0) {
bind[i].buffer_type = MYSQL_TYPE_TIMESTAMP;
*bind[i].length = sizeof(MYSQL_TIME);
bind[i].buffer = safe_malloc(*bind[i].length);
memset(bind[i].buffer, 0, *bind[i].length);
memcpy(bind[i].buffer, value, *bind[i].length);
} else if (strncmp(t, INTEGER_SQL, strlen(INTEGER_SQL)) == 0) {
int val;
bind[i].buffer_type = MYSQL_TYPE_LONG;
*bind[i].length = sizeof(int);
bind[i].buffer = safe_malloc(*bind[i].length);
memset(bind[i].buffer, 0, *bind[i].length);
val = ERL_INT_VALUE(value);
memcpy(bind[i].buffer, &val, *bind[i].length);
} else {
ETERM *resp;
resp = erl_format("{error, {unknown_type, ~s}}", t);
write_msg(resp);
erl_free_term(resp);
}
}
if (ERL_IS_ATOM(value)
&& strncmp((char *)ERL_ATOM_PTR(value),
NULL_SQL, strlen(NULL_SQL)) == 0)
bind[i].is_null = &TRUTHY;
else
bind[i].is_null = &FALSY;
erl_free_term(value);
erl_free_term(type);
}
erl_free_term(params);
if (mysql_stmt_bind_param(handle, bind)) {
resp = erl_format("{error, {mysql_error, ~i, ~s}}",
mysql_stmt_errno(handle), mysql_stmt_error(handle));
} else {
if (mysql_stmt_execute(handle)) {
resp = erl_format("{error, {mysql_error, ~i, ~s}}",
mysql_stmt_errno(handle), mysql_stmt_error(handle));
} else {
set_mysql_results(handle);
if (results) {
resp = handle_mysql_result();
} else {
if (mysql_stmt_field_count(handle) == 0)
resp = erl_format("{updated, ~i}", numrows);
else
resp = erl_format("{error, {mysql_error, ~i, ~s}}",
mysql_stmt_errno(handle), mysql_stmt_error(handle));
}
}
}
for (i = 0; i < param_count; i++) {
free(bind[i].length);
free(bind[i].buffer);
}
free(bind);
}
}
erl_free(q);
mysql_stmt_close(handle);
write_msg(resp);
erl_free_term(resp);
}
int main(void)
#endif
{
ei_x_buff eix;
int index = 0;
ETERM **etermpp = NULL, *etermp = NULL;
char *charp = NULL;
unsigned char uchar, **ucharpp = NULL, *ucharp = NULL;
void *voidp = NULL;
Erl_Heap *erl_heapp = NULL;
int intx = 0;
int *intp = NULL;
unsigned int uintx, *uintp;
unsigned long *ulongp = NULL;
long longx = 0;
double doublex = 0.0;
short shortx = 42;
FILE *filep = NULL;
Erl_IpAddr erl_ipaddr = NULL;
ErlMessage *erlmessagep = NULL;
ErlConnect *erlconnectp = NULL;
struct hostent *hostp = NULL;
struct in_addr *inaddrp = NULL;
/* Converion to erl_interface format is in liberl_interface */
intx = erl_errno;
ei_encode_term(charp, &index, voidp);
ei_x_encode_term(&eix, voidp);
ei_decode_term(charp, &index, voidp);
erl_init(voidp, longx);
erl_connect_init(intx, charp,shortx);
erl_connect_xinit(charp,charp,charp,erl_ipaddr,charp,shortx);
erl_connect(charp);
erl_xconnect(erl_ipaddr,charp);
erl_close_connection(intx);
erl_receive(intx, ucharp, intx);
erl_receive_msg(intx, ucharp, intx, erlmessagep);
erl_xreceive_msg(intx, ucharpp, intp, erlmessagep);
erl_send(intx, etermp, etermp);
erl_reg_send(intx, charp, etermp);
erl_rpc(intx,charp,charp,etermp);
erl_rpc_to(intx,charp,charp,etermp);
erl_rpc_from(intx,intx,erlmessagep);
erl_publish(intx);
erl_accept(intx,erlconnectp);
erl_thiscookie();
erl_thisnodename();
erl_thishostname();
erl_thisalivename();
erl_thiscreation();
erl_unpublish(charp);
erl_err_msg(charp);
erl_err_quit(charp);
erl_err_ret(charp);
erl_err_sys(charp);
erl_cons(etermp,etermp);
erl_copy_term(etermp);
erl_element(intx,etermp);
erl_hd(etermp);
erl_iolist_to_binary(etermp);
erl_iolist_to_string(etermp);
erl_iolist_length(etermp);
erl_length(etermp);
erl_mk_atom(charp);
erl_mk_binary(charp,intx);
erl_mk_empty_list();
erl_mk_estring(charp, intx);
erl_mk_float(doublex);
erl_mk_int(intx);
erl_mk_list(etermpp,intx);
erl_mk_pid(charp,uintx,uintx,uchar);
erl_mk_port(charp,uintx,uchar);
erl_mk_ref(charp,uintx,uchar);
erl_mk_long_ref(charp,uintx,uintx,uintx,uchar);
erl_mk_string(charp);
erl_mk_tuple(etermpp,intx);
erl_mk_uint(uintx);
erl_mk_var(charp);
erl_print_term(filep,etermp);
/* erl_sprint_term(charp,etermp); */
erl_size(etermp);
erl_tl(etermp);
erl_var_content(etermp, charp);
erl_format(charp);
erl_match(etermp, etermp);
erl_global_names(intx, intp);
erl_global_register(intx, charp, etermp);
erl_global_unregister(intx, charp);
erl_global_whereis(intx, charp, charp);
erl_init_malloc(erl_heapp,longx);
erl_alloc_eterm(uchar);
erl_eterm_release();
erl_eterm_statistics(ulongp,ulongp);
erl_free_array(etermpp,intx);
erl_free_term(etermp);
erl_free_compound(etermp);
erl_malloc(longx);
erl_free(voidp);
erl_compare_ext(ucharp, ucharp);
erl_decode(ucharp);
erl_decode_buf(ucharpp);
erl_encode(etermp,ucharp);
erl_encode_buf(etermp,ucharpp);
erl_ext_size(ucharp);
erl_ext_type(ucharp);
erl_peek_ext(ucharp,intx);
erl_term_len(etermp);
erl_gethostbyname(charp);
erl_gethostbyaddr(charp, intx, intx);
erl_gethostbyname_r(charp, hostp, charp, intx, intp);
erl_gethostbyaddr_r(charp, intx, intx, hostp, charp, intx, intp);
erl_init_resolve();
erl_distversion(intx);
erl_epmd_connect(inaddrp);
erl_epmd_port(inaddrp, charp, intp);
charp = ERL_ATOM_PTR(etermp);
intx = ERL_ATOM_SIZE(etermp);
ucharp = ERL_BIN_PTR(etermp);
intx = ERL_BIN_SIZE(etermp);
etermp = ERL_CONS_HEAD(etermp);
etermp = ERL_CONS_TAIL(etermp);
intx = ERL_COUNT(etermp);
doublex= ERL_FLOAT_VALUE(etermp);
uintx = ERL_INT_UVALUE(etermp);
intx = ERL_INT_VALUE(etermp);
intx = ERL_IS_ATOM(etermp);
intx = ERL_IS_BINARY(etermp);
intx = ERL_IS_CONS(etermp);
intx = ERL_IS_EMPTY_LIST(etermp);
intx = ERL_IS_FLOAT(etermp);
intx = ERL_IS_INTEGER(etermp);
intx = ERL_IS_LIST(etermp);
intx = ERL_IS_PID(etermp);
intx = ERL_IS_PORT(etermp);
intx = ERL_IS_REF(etermp);
intx = ERL_IS_TUPLE(etermp);
intx = ERL_IS_UNSIGNED_INTEGER(etermp);
uchar = ERL_PID_CREATION(etermp);
charp = ERL_PID_NODE(etermp);
uintx = ERL_PID_NUMBER(etermp);
uintx = ERL_PID_SERIAL(etermp);
uchar = ERL_PORT_CREATION(etermp);
charp = ERL_PORT_NODE(etermp);
uintx = ERL_PORT_NUMBER(etermp);
uchar = ERL_REF_CREATION(etermp);
intx = ERL_REF_LEN(etermp);
charp = ERL_REF_NODE(etermp);
uintx = ERL_REF_NUMBER(etermp);
uintp = ERL_REF_NUMBERS(etermp);
etermp = ERL_TUPLE_ELEMENT(etermp,intx);
intx = ERL_TUPLE_SIZE(etermp);
return
BUFSIZ +
EAGAIN +
EHOSTUNREACH +
EINVAL +
EIO +
EMSGSIZE +
ENOMEM +
ERL_ATOM +
ERL_BINARY +
ERL_ERROR +
ERL_EXIT +
ERL_FLOAT +
ERL_INTEGER +
ERL_LINK +
ERL_LIST +
ERL_MSG +
ERL_NO_TIMEOUT +
ERL_PID +
ERL_PORT +
ERL_REF +
ERL_REG_SEND +
ERL_SEND +
ERL_SMALL_BIG +
ERL_TICK +
ERL_TIMEOUT +
ERL_TUPLE +
ERL_UNLINK +
ERL_U_INTEGER +
ERL_U_SMALL_BIG +
ERL_VARIABLE +
ETIMEDOUT +
MAXNODELEN +
MAXREGLEN;
}