X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=src%2FOCamlDriver.cpp;h=4a31dad386e8b507824bd290ff2fdaf31ac3d88a;hb=feae5b72d47e0ae245145d401ba73804ce18fc8c;hp=c1a4fdda93b726b40040dbb23b997328e1e6b900;hpb=dabbda9e7f33734a3be4125f029b850ea39e2f19;p=SXSI%2Fxpathcomp.git

diff --git a/src/OCamlDriver.cpp b/src/OCamlDriver.cpp
index c1a4fdd..4a31dad 100644
--- a/src/OCamlDriver.cpp
+++ b/src/OCamlDriver.cpp
@@ -40,6 +40,8 @@
 extern "C" {
 #include <sys/time.h>
 #include <sys/resource.h>
+#include <stdio.h>
+#include <bp-darray.h>
 }
 
 
@@ -152,16 +154,13 @@ extern "C"  value caml_xml_tree_save(value tree,value fd, value name){
 
 extern "C"  value caml_xml_tree_load(value fd, value name, value load_tc,value sf){
   CAMLparam4(fd, name, load_tc, sf);
-  CAMLlocal2(result,tmp);
+  CAMLlocal1(result);
   XMLTree * tree;
   try {
 
-    tree = XMLTree::Load(Int_val(fd),Bool_val(load_tc),Int_val(sf), String_val(name));
+    tree = XMLTree::Load(Int_val(fd), Bool_val(load_tc), Int_val(sf), String_val(name));
     result = sxsi_alloc_custom<XMLTree*>();
-
     Obj_val<XMLTree*>(result) = tree;
-    tmp = sxsi_alloc_custom<long>();
-    Obj_val<long>(tmp) = 3l;
     CAMLreturn(result);
   }
   catch (const std::exception& e){ CAMLRAISEMSG(e.what()); }
@@ -893,3 +892,113 @@ BV_QUERY(suffix, Suffix)
 BV_QUERY(equals, Equals)
 BV_QUERY(contains, Contains)
 BV_QUERY(lessthan, LessThan)
+
+
+////////////////////// BP
+
+extern "C" value caml_bitmap_create(value size)
+{
+  CAMLparam1(size);
+  size_t bits = Long_val(size);
+  size_t words = bits / (8*sizeof(unsigned int));
+  unsigned int *buffer = (unsigned int*) calloc(words+1, sizeof(unsigned int));
+  if (buffer == NULL)
+    CAMLRAISEMSG("BP: cannot allocate memory");
+  CAMLreturn( (value) buffer);
+}
+
+extern "C" value caml_bitmap_resize(value bitmap, value nsize)
+{
+  CAMLparam2(bitmap, nsize);
+  size_t bits = Long_val(nsize);
+  size_t bytes = (bits / (8 * sizeof(unsigned int)) + 1 ) * sizeof(unsigned int);
+  unsigned int * buffer = (unsigned int*) realloc((void *) bitmap, bytes);
+  if (buffer == NULL)
+    CAMLRAISEMSG("BP: cannot reallocate memory");
+  CAMLreturn((value) buffer);
+}
+
+extern "C" value caml_bitmap_setbit(value bitmap, value i, value b)
+{
+  CAMLparam3(bitmap, i, b);
+  unsigned int j = Int_val(i);
+  unsigned int x = Bool_val(b);
+  bp_setbit ((unsigned int*) bitmap, j, x);
+  CAMLreturn(Val_unit);
+}
+
+extern "C" void caml_bp_delete(value b)
+{
+  CAMLparam1(b);
+  bp * B = Obj_val<bp*>(b);
+  bp_delete(B);
+  CAMLreturn0;
+}
+
+extern "C" value caml_bp_construct(value bitmap, value npar)
+{
+  CAMLparam2(bitmap, npar);
+  CAMLlocal1(res);
+  bp * b = bp_construct(Int_val(npar), (unsigned int *) bitmap, OPT_DEGREE);
+  res = sxsi_alloc_custom<bp*>(caml_bp_delete);
+  Obj_val<bp*>(res) = b;
+  CAMLreturn(res);
+}
+
+extern "C" value caml_bp_first_child(value b, value idx)
+{
+  CAMLparam2(b, idx);
+  CAMLreturn (Val_int( bp_first_child(Obj_val<bp*>(b), Int_val(idx))));
+}
+
+
+extern "C" value caml_bp_next_sibling(value b, value idx)
+{
+  CAMLparam2(b, idx);
+  CAMLreturn (Val_int(bp_next_sibling(Obj_val<bp*>(b), Int_val(idx))));
+}
+
+extern "C" value caml_bp_preorder_rank(value b, value idx)
+{
+  CAMLparam2(b, idx);
+  CAMLreturn (Val_int(bp_preorder_rank(Obj_val<bp*>(b), Int_val(idx)) - 1));
+}
+
+
+extern "C" value caml_bp_load(value file)
+{
+  CAMLparam1(file);
+  CAMLlocal1(result);
+  bp *B;
+  int f1 = Int_val(file);
+  int f2 = dup(f1);
+  FILE * fd = fdopen(f2, "r");
+  if (fd == NULL)
+    CAMLRAISEMSG("Error opening bp file");
+  B = loadTree(fd);
+  fclose(fd);
+  result = sxsi_alloc_custom<bp*>(caml_bp_delete);
+  Obj_val<bp*>(result) = B;
+  CAMLreturn(result);
+}
+
+extern "C" value caml_bp_save(value b, value file)
+{
+  CAMLparam2(b, file);
+  bp *B = Obj_val<bp*>(b);
+  int f1 = Int_val(file);
+  int f2 = dup(f1);
+  FILE * fd = fdopen(f2, "a");
+  fflush(stderr);
+  if (fd == NULL)
+    CAMLRAISEMSG("Error saving bp file");
+  saveTree(B, fd);
+  fclose(fd);
+  CAMLreturn(Val_unit);
+}
+
+extern "C" value caml_bp_alloc_stats(value unit)
+{
+  CAMLparam1(unit);
+  CAMLreturn (Val_long(bp_get_alloc_stats()));
+}