/**\memberof PNFile
\c "write" a binary representation of obj to the file handle.
\param obj PNString, PNBytes, PNInteger (long or double), PNBoolean (char 0 or 1)
\return PNInteger written bytes or PN_NIL */
PN potion_file_write(Potion *P, PN cl, pn_file self, PN obj) {
long len = 0;
char *ptr = NULL;
union { double d; long l; char c; } tmp;
//TODO: maybe extract ptr+len to seperate function
if (!PN_IS_PTR(obj)) {
if (!obj) return PN_NIL; //silent
else if (PN_IS_INT(obj)) {
tmp.l = PN_NUM(obj); len = sizeof(tmp); ptr = (char *)&tmp.l;
}
else if (PN_IS_BOOL(obj)) {
tmp.c = (obj == PN_TRUE) ? 1 : 0; len = 1; ptr = (char *)&tmp.c;
}
else {
assert(0 && "Invalid primitive type");
}
} else {
switch (PN_TYPE(obj)) {
case PN_TSTRING: len = PN_STR_LEN(obj); ptr = PN_STR_PTR(obj); break;
case PN_TBYTES: len = potion_send(obj, PN_STR("length")); ptr = PN_STR_PTR(obj); break;
case PN_TNUMBER: {
tmp.d = PN_DBL(obj); len = sizeof(tmp); ptr = (char *)&tmp.d;
break;
}
default: return potion_type_error(P, obj);
}
}
int r = write(self->fd, ptr, len);
if (r == -1)
return potion_io_error(P, "write");
return PN_NUM(r);
}
PN potion_file_write(Potion *P, PN cl, pn_file self, PN str) {
int r = write(self->fd, PN_STR_PTR(str), PN_STR_LEN(str));
if (r == -1) {
perror("write");
// TODO: error
return PN_NIL;
}
return PN_NUM(r);
}
char *potion_find_file(char *str, PN_SIZE str_len)
{
char *r = NULL;
struct stat st;
PN_TUPLE_EACH(pn_loader_path, i, prefix,
{ PN_SIZE prefix_len = PN_STR_LEN(prefix); char dirname[prefix_len + 1 + str_len + 1]; char *str_pos = dirname + prefix_len + 1; char *dot; const char *ext; memcpy(str_pos, str, str_len); dot = memchr(str, '.', str_len); if (dot == NULL) dirname[sizeof(dirname) - 1] = '\0'; else *dot = '\0'; memcpy(dirname, PN_STR_PTR(prefix), prefix_len); dirname[prefix_len] = '/'; if (stat(dirname, &st) == 0 && S_ISREG(st.st_mode)) { if (asprintf(&r, "%s", dirname) == -1) potion_allocation_error(); break; } else if ((ext = find_extension(dirname)) != NULL) { if (asprintf(&r, "%s%s", dirname, ext) == -1) potion_allocation_error(); break; } else { char *file; if ((file = strrchr(str, '/')) == NULL) file = str; else file++; if (asprintf(&r, "%s/%s", dirname, file) == -1) potion_allocation_error(); if (stat(r, &st) != 0 || !S_ISREG(st.st_mode)) { int r_len = prefix_len + 1 + str_len * 2 + 1; if ((ext = find_extension(r)) == NULL) { free(r); r = NULL; continue; } r = realloc(r, r_len + strlen(ext)); if (r == NULL) potion_allocation_error(); strcpy(r + r_len, ext); } break; } });
PN_SIZE potion_type_size(Potion *P, const struct PNObject *ptr) {
int sz = 0;
switch (((struct PNFwd *)ptr)->fwd) {
case POTION_COPIED:
case POTION_FWD:
sz = ((struct PNFwd *)ptr)->siz;
goto done;
}
if (ptr->vt > PN_TUSER) {
sz = sizeof(struct PNObject) +
(((struct PNVtable *)PN_VTABLE(ptr->vt))->ivlen * sizeof(PN));
goto done;
}
switch (ptr->vt) {
case PN_TNUMBER:
sz = sizeof(struct PNDecimal);
break;
case PN_TSTRING:
sz = sizeof(struct PNString) + PN_STR_LEN(ptr) + 1;
break;
case PN_TCLOSURE:
sz = sizeof(struct PNClosure) + (PN_CLOSURE(ptr)->extra * sizeof(PN));
break;
case PN_TTUPLE:
sz = sizeof(struct PNTuple) + (sizeof(PN) * ((struct PNTuple *)ptr)->len);
break;
case PN_TSTATE:
sz = sizeof(Potion);
break;
case PN_TFILE:
sz = sizeof(struct PNFile);
break;
case PN_TVTABLE:
sz = sizeof(struct PNVtable);
break;
case PN_TSOURCE:
// TODO: look up ast size (see core/ast.c)
sz = sizeof(struct PNSource) + (3 * sizeof(PN));
break;
case PN_TBYTES:
sz = sizeof(struct PNBytes) + ((struct PNBytes *)ptr)->siz;
break;
case PN_TPROTO:
sz = sizeof(struct PNProto);
break;
case PN_TTABLE:
sz = sizeof(struct PNTable) + kh_mem(PN, ptr);
break;
case PN_TSTRINGS:
sz = sizeof(struct PNTable) + kh_mem(str, ptr);
break;
case PN_TFLEX:
sz = sizeof(PNFlex) + ((PNFlex *)ptr)->siz;
break;
case PN_TCONT:
sz = sizeof(struct PNCont) + (((struct PNCont *)ptr)->len * sizeof(PN));
break;
case PN_TUSER:
sz = sizeof(struct PNData) + ((struct PNData *)ptr)->siz;
break;
}
done:
if (sz < sizeof(struct PNFwd))
sz = sizeof(struct PNFwd);
return PN_ALIGN(sz, 8); // force 64-bit alignment
}
static void potion_cmd_compile
(
char *filename,
int exec,
int verbose,
void *sp
)
{
PN buf, code;
int fd = -1;
struct stat stats;
Potion *P = potion_create(sp);
if (stat(filename, &stats) == -1)
{
potion_warn("** %s does not exist.\n", filename);
goto done;
}
fd = open(filename, O_RDONLY | O_BINARY);
if (fd == -1)
{
potion_warn("** could not open %s. check permissions.\n", filename);
goto done;
}
buf = potion_bytes(P, stats.st_size);
if (read(fd, PN_STR_PTR(buf), stats.st_size) == stats.st_size)
{
PN_STR_PTR(buf)[stats.st_size] = '\0';
code = potion_source_load(P, PN_NIL, buf);
if (PN_IS_PROTO(code))
{
if (verbose > 1)
printf("\n\n-- loaded --\n");
}
else
{
code = potion_parse(P, buf);
if (PN_TYPE(code) == PN_TERROR)
{
potion_send(potion_send(code, PN_string), PN_print);
goto done;
}
if (verbose > 1)
{
printf("\n-- parsed --\n");
potion_send(potion_send(code, PN_string), PN_print);
printf("\n");
}
code =
potion_send(code, PN_compile, potion_str(P, filename), PN_NIL);
if (verbose > 1)
printf("\n-- compiled --\n");
}
if (verbose > 1)
{
potion_send(potion_send(code, PN_string), PN_print);
printf("\n");
}
if (exec == 1)
{
code = potion_vm(P, code, P->lobby, PN_NIL, 0, NULL );
if (verbose > 1)
printf(
"\n-- vm returned %p (fixed=%ld, actual=%ld, reserved=%ld) --\n",
(void *) code, PN_INT(potion_gc_fixed(P, 0, 0)),
PN_INT(potion_gc_actual(P, 0, 0)),
PN_INT(potion_gc_reserved(P, 0, 0)));
if (verbose)
{
potion_send(potion_send(code, PN_string), PN_print);
printf("\n");
}
}
else if (exec == 2)
{
#if POTION_JIT == 1
PN val;
PN cl = potion_closure_new(P, (PN_F)potion_jit_proto(P, code, POTION_JIT_TARGET), PN_NIL, 1);
PN_CLOSURE(cl)->data[0] = code;
val = PN_PROTO(code)->jit(P, cl, P->lobby);
if (verbose > 1)
printf("\n-- jit returned %p (fixed=%ld, actual=%ld, reserved=%ld) --\n", PN_PROTO(code)->jit,
PN_INT(potion_gc_fixed(P, 0, 0)), PN_INT(potion_gc_actual(P, 0, 0)),
PN_INT(potion_gc_reserved(P, 0, 0)));
if (verbose)
{
potion_send(potion_send(val, PN_string), PN_print);
printf("\n");
}
#else
potion_warn("** potion built without JIT support\n");
#endif
}
else
{
char pnbpath[255];
FILE *pnb;
sprintf(pnbpath, "%sb", filename);
pnb = fopen(pnbpath, "wb");
if (!pnb)
{
potion_warn("** could not open %s for writing. check permissions.\n",pnbpath);
goto done;
}
code = potion_source_dump(P, PN_NIL, code);
if (fwrite(PN_STR_PTR(code), 1, PN_STR_LEN(code),
pnb) == PN_STR_LEN(code))
{
potion_notice("** compiled code saved to %s\n", pnbpath);
potion_notice("** run it with: potion %s\n", pnbpath);
fclose(pnb);
}
else
{
potion_warn("** could not write all bytecode.\n");
}
}
#if 0
void *scanptr = (void *)((char *)P->mem->old_lo + (sizeof(PN) * 2));
while ((PN)scanptr < (PN)P->mem->old_cur)
{
printf("%p.vt = %lx (%u)\n",
scanptr, ((struct PNObject *)scanptr)->vt,
potion_type_size(P, scanptr));
if (((struct PNFwd *)scanptr)->fwd != POTION_FWD && ((struct PNFwd *)scanptr)->fwd != POTION_COPIED)
{
if (((struct PNObject *)scanptr)->vt < 0 || ((struct PNObject *)scanptr)->vt > PN_TUSER)
{
printf("wrong type for allocated object: %p.vt = %lx\n",
scanptr, ((struct PNObject *)scanptr)->vt);
break;
}
}
scanptr = (void *)((char *)scanptr + potion_type_size(P, scanptr));
if ((PN)scanptr > (PN)P->mem->old_cur)
{
printf("allocated object goes beyond GC pointer\n");
break;
}
}
#endif
}
else
{
potion_warn("** could not read entire file.");
}
done: if (fd != -1)
close(fd);
if (P != NULL )
potion_destroy(P);
}
PN_SIZE potion_type_size(Potion *P, const struct PNObject *ptr) {
int sz = 0;
switch (((struct PNFwd *)ptr)->fwd) {
case POTION_COPIED:
case POTION_FWD:
sz = ((struct PNFwd *)ptr)->siz;
goto done;
}
if (ptr->vt < PN_TNIL) goto err;
if (ptr->vt > PN_TUSER) {
if (P->vts && ptr->vt < P->vts->len
&& PN_VTABLE(ptr->vt) && PN_TYPECHECK(ptr->vt)) {
sz = sizeof(struct PNObject) +
(((struct PNVtable *)PN_VTABLE(ptr->vt))->ivlen * sizeof(PN));
//sz = potion_send((PN)ptr, PN_size); //cannot use bind with POTION_COPIED objs during GC!
} else {
err:
if (P->flags & (DEBUG_VERBOSE
#ifdef DEBUG
|DEBUG_GC
#endif
))
fprintf(stderr, "** Invalid User Object 0x%lx vt: 0x%lx\n",
(unsigned long)ptr, (unsigned long)ptr->vt);
return 0;
}
goto done;
}
switch (ptr->vt) {
case PN_TNUMBER:
sz = sizeof(struct PNDecimal);
break;
case PN_TSTRING:
sz = sizeof(struct PNString) + PN_STR_LEN(ptr) + 1;
break;
case PN_TCLOSURE:
sz = sizeof(struct PNClosure) + (PN_CLOSURE(ptr)->extra * sizeof(PN));
break;
case PN_TTUPLE:
sz = sizeof(struct PNTuple) + (sizeof(PN) * ((struct PNTuple *)ptr)->alloc);
break;
case PN_TSTATE:
sz = sizeof(Potion);
break;
case PN_TFILE:
sz = sizeof(struct PNFile);
break;
case PN_TVTABLE:
sz = sizeof(struct PNVtable);
break;
case PN_TSOURCE:
sz = sizeof(struct PNSource);
break;
case PN_TBYTES:
sz = sizeof(struct PNBytes) + ((struct PNBytes *)ptr)->siz;
break;
case PN_TPROTO:
sz = sizeof(struct PNProto);
break;
case PN_TTABLE:
sz = sizeof(struct PNTable) + kh_mem(PN, ptr);
break;
case PN_TLICK:
sz = sizeof(struct PNLick);
break;
case PN_TSTRINGS:
sz = sizeof(struct PNTable) + kh_mem(str, ptr);
break;
case PN_TFLEX:
sz = sizeof(PNFlex) + ((PNFlex *)ptr)->siz;
break;
case PN_TCONT:
sz = sizeof(struct PNCont) + (((struct PNCont *)ptr)->len * sizeof(PN));
break;
case PN_TUSER:
sz = sizeof(struct PNData) + ((struct PNData *)ptr)->siz;
break;
}
done:
if (sz < sizeof(struct PNFwd))
sz = sizeof(struct PNFwd);
return PN_ALIGN(sz, 8); // force 64-bit alignment
}
