From c17e7730c128ea465d0e9581a2f87a4e0c4869d3 Mon Sep 17 00:00:00 2001
From: Michael Vogt <michael.vogt@ubuntu.com>
Date: Wed, 23 Feb 2005 11:07:56 +0000
Subject: * added basic depcache support

---
 python/depcache.cc | 149 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 python/makefile    |   2 +-
 2 files changed, 150 insertions(+), 1 deletion(-)
 create mode 100644 python/depcache.cc

(limited to 'python')

diff --git a/python/depcache.cc b/python/depcache.cc
new file mode 100644
index 00000000..ea86bf3c
--- /dev/null
+++ b/python/depcache.cc
@@ -0,0 +1,149 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: depcache.cc,v 1.5 2003/06/03 03:03:23 mdz Exp $
+/* ######################################################################
+
+   DepCache - Wrapper for the depcache related functions
+
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#include "generic.h"
+#include "apt_pkgmodule.h"
+
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cachefile.h>
+#include <apt-pkg/policy.h>
+#include <apt-pkg/sptr.h>
+
+#include <Python.h>
+			
+
+// DepCache Class								/*{{{*/
+// ---------------------------------------------------------------------
+
+struct PkgDepCacheStruct
+{
+   pkgDepCache depcache;
+
+   PkgDepCacheStruct(pkgCache *Cache, pkgPolicy *Policy) 
+      : depcache(Cache,Policy) {};
+   // FIXME: wrap pkgPolicy as well and remove this "new() memory leak"
+   PkgDepCacheStruct(pkgCache *Cache) 
+      : depcache(Cache,new pkgPolicy(Cache) ) {};
+   PkgDepCacheStruct() : depcache(NULL, NULL) {abort();};
+};
+
+static PyObject *PkgDepCacheInit(PyObject *Self,PyObject *Args)
+{   
+   PkgDepCacheStruct &Struct = GetCpp<PkgDepCacheStruct>(Self);
+
+   // FIXME: argument should be OpProgress
+#if 0
+   PyObject *PkgFObj;
+   long int Index;
+   if (PyArg_ParseTuple(Args,"(O!l)",&PackageFileType,&PkgFObj,&Index) == 0)
+      return 0;
+#endif   
+
+   Struct.depcache.Init(0);
+
+   return HandleErrors(Py_None);   
+}
+
+static PyObject *PkgDepCacheGetCandidateVer(PyObject *Self,PyObject *Args)
+{ 
+   PkgDepCacheStruct &Struct = GetCpp<PkgDepCacheStruct>(Self);
+   PyObject *PackageObj;
+   PyObject *CandidateObj;
+   if (PyArg_ParseTuple(Args,"O!",&PackageType,&PackageObj) == 0)
+      return 0;
+
+   pkgCache::PkgIterator &Pkg = GetCpp<pkgCache::PkgIterator>(PackageObj);
+   pkgCache::VerIterator I = Struct.depcache.GetCandidateVer(Pkg);
+   CandidateObj = CppOwnedPyObject_NEW<pkgCache::VerIterator>(PackageObj,&VersionType,I);
+
+   return CandidateObj;
+}
+
+static PyMethodDef PkgDepCacheMethods[] = 
+{
+   {"Init",PkgDepCacheInit,METH_VARARGS,"Init the depcache"},
+   {"GetCandidateVer",PkgDepCacheGetCandidateVer,METH_VARARGS,"Get candidate version"},
+   {}
+};
+
+
+static PyObject *DepCacheAttr(PyObject *Self,char *Name)
+{
+   PkgDepCacheStruct &Struct = GetCpp<PkgDepCacheStruct>(Self);
+
+   // size querries
+   if(strcmp("KeepCount",Name) == 0) 
+      return Py_BuildValue("i", Struct.depcache.KeepCount());
+   else if(strcmp("InstCount",Name) == 0) 
+      return Py_BuildValue("i", Struct.depcache.InstCount());
+   else if(strcmp("DelCount",Name) == 0) 
+      return Py_BuildValue("i", Struct.depcache.DelCount());
+   else if(strcmp("BrokenCount",Name) == 0) 
+      return Py_BuildValue("i", Struct.depcache.BrokenCount());
+   else if(strcmp("UsrSize",Name) == 0) 
+      return Py_BuildValue("i", Struct.depcache.UsrSize());
+   else if(strcmp("DebSize",Name) == 0) 
+      return Py_BuildValue("i", Struct.depcache.DebSize());
+   
+   
+#if 0
+   if (strcmp("FileList",Name) == 0)
+   {
+      PyObject *List = PyList_New(0);
+      for (pkgCache::PkgFileIterator I = Cache->FileBegin(); I.end() == false; I++)
+      {
+	 PyObject *Obj;
+	 Obj = CppOwnedPyObject_NEW<pkgCache::PkgFileIterator>(Self,&PackageFileType,I);
+	 PyList_Append(List,Obj);
+	 Py_DECREF(Obj);
+      }      
+      return List;
+   }
+#endif
+   return Py_FindMethod(PkgDepCacheMethods,Self,Name);
+}
+
+
+
+
+PyTypeObject PkgDepCacheType =
+{
+   PyObject_HEAD_INIT(&PyType_Type)
+   0,			                // ob_size
+   "pkgDepCache",                          // tp_name
+   sizeof(CppOwnedPyObject<pkgDepCache *>),   // tp_basicsize
+   0,                                   // tp_itemsize
+   // Methods
+   CppOwnedDealloc<pkgDepCache *>,        // tp_dealloc
+   0,                                   // tp_print
+   DepCacheAttr,                           // tp_getattr
+   0,                                   // tp_setattr
+   0,                                   // tp_compare
+   0,                                   // tp_repr
+   0,                                   // tp_as_number
+   0,                                   // tp_as_sequence
+   0,	                                // tp_as_mapping
+   0,                                   // tp_hash
+};
+
+
+PyObject *GetDepCache(PyObject *Self,PyObject *Args)
+{
+   PyObject *Owner;
+   if (PyArg_ParseTuple(Args,"O!",&PkgCacheType,&Owner) == 0)
+      return 0;
+
+   return HandleErrors(CppOwnedPyObject_NEW<PkgDepCacheStruct>(Owner,
+							 &PkgDepCacheType,
+							 GetCpp<pkgCache *>(Owner)));
+}
+
+
+									/*}}}*/
diff --git a/python/makefile b/python/makefile
index b2f51372..0817c806 100644
--- a/python/makefile
+++ b/python/makefile
@@ -10,7 +10,7 @@ MODULE=apt_pkg
 SLIBS = -lapt-pkg 
 LIB_MAKES = apt-pkg/makefile
 APT_PKG_SRC = apt_pkgmodule.cc configuration.cc generic.cc tag.cc string.cc \
-              cache.cc pkgrecords.cc pkgsrcrecords.cc sourcelist.cc
+              cache.cc pkgrecords.cc pkgsrcrecords.cc sourcelist.cc depcache.cc
 SOURCE := $(APT_PKG_SRC)	      
 include $(PYTHON_H)
 
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