add vfs->close_read_file() to work around compiler bug

panda/src/audiotraits/fmodAudioManager.cxx

@@ -808,28 +808,14 @@ load(const Filename& filename, size_t &size) const {
   istream *audioFile = NULL;
 
   Filename binary_filename = Filename::binary_filename(filename);
-  if (use_vfs) {
-    VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
+  VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
 
-    if (!vfs->exists(filename)) {
-      audio_error("File " << filename << " does not exist.");
-      return NULL;
-    }
-
-    audioFile = vfs->open_read_file(binary_filename);
-
-  } else {
-    if (!filename.exists()) {
-      audio_error("File " << filename << " does not exist.");
-      return NULL;
-    }
-
-    audioFile = new ifstream;
-    if (!binary_filename.open_read(*(ifstream *)audioFile)) {
-      delete audioFile;
-      audioFile = NULL;
-    }
+  if (!vfs->exists(filename)) {
+    audio_error("File " << filename << " does not exist.");
+    return NULL;
   }
+  
+  audioFile = vfs->open_read_file(binary_filename);
 
   if (audioFile == (istream *)NULL) {
     // Unable to open.
@@ -846,18 +832,18 @@ load(const Filename& filename, size_t &size) const {
   char *buffer = new char[size];
   if (buffer == NULL) {
     audio_error("out-of-memory error while loading "<<filename);
-    delete audioFile;
+    vfs->close_read_file(audioFile);
     return NULL;
   }
   audioFile->read(buffer, size);
   if (!(*audioFile)) {
     audio_error("Read error while loading "<<filename);
-    delete audioFile;
+    vfs->close_read_file(audioFile);
     delete [] buffer;
     return NULL;
   }
 
-  delete audioFile;
+  vfs->close_read_file(audioFile);
   return buffer;
 }
 

panda/src/audiotraits/milesAudioManager.cxx

@@ -787,7 +787,7 @@ vfs_close_callback(U32 file_handle) {
     return;
   }
   istream *istr = (istream *)file_handle;
-  delete istr;
+  vfs->close_read_file(istr);
 }
 
 

panda/src/downloader/httpChannel.cxx

@@ -165,7 +165,7 @@ will_close_connection() const {
 //       Access: Public, Virtual
 //  Description: Opens the document for reading.  Returns a newly
 //               allocated istream on success (which you should
-//               eventually delete when you are done reading).
+//               pass to close_read_file() when you are done reading).
 //               Returns NULL on failure.  This may only be called
 //               once for a particular HTTPChannel.
 ////////////////////////////////////////////////////////////////////
@@ -174,6 +174,31 @@ open_read_file() const {
   return ((HTTPChannel *)this)->read_body();
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: HTTPChannel::close_read_file
+//       Access: Public
+//  Description: Closes a file opened by a previous call to
+//               open_read_file().  This really just deletes the
+//               istream pointer, but it is recommended to use this
+//               interface instead of deleting it explicitly, to help
+//               work around compiler issues.
+////////////////////////////////////////////////////////////////////
+void HTTPChannel::
+close_read_file(istream *stream) const {
+  if (stream != (istream *)NULL) {
+    // For some reason--compiler bug in gcc 3.2?--explicitly deleting
+    // the stream pointer does not call the appropriate global delete
+    // function; instead apparently calling the system delete
+    // function.  So we call the delete function by hand instead.
+#ifndef NDEBUG
+    stream->~istream();
+    (*global_operator_delete)(stream);
+#else
+    delete stream;
+#endif
+  }
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: HTTPChannel::get_status_string
 //       Access: Published

panda/src/downloader/httpChannel.h

@@ -72,6 +72,7 @@ public:
 
   virtual bool is_regular_file() const;
   virtual istream *open_read_file() const;
+  void close_read_file(istream *stream) const;
 
   bool will_close_connection() const;
 

panda/src/egg/eggData.cxx

@@ -107,7 +107,7 @@ read(Filename filename, string display_name) {
       << "Reading " << display_name << "\n";
 
     bool read_ok = read(*file);
-    delete file;
+    vfs->close_read_file(file);
     return read_ok;
 
   } else {

panda/src/egg2pg/load_egg_file.cxx

@@ -98,7 +98,7 @@ load_egg_file(const string &filename, CoordinateSystem cs) {
     return NULL;
   }
   okflag = loader._data.read(*istr);
-  delete istr;
+  vfs->close_read_file(istr);
 
   if (!okflag) {
     egg2pg_cat.error()

panda/src/express/hashVal.cxx

@@ -200,7 +200,7 @@ hash_file(const Filename &filename) {
     count = istr->gcount();
   }
 
-  delete istr;
+  vfs->close_read_file(istr);
   MD5_Final(md, &ctx);
 
   // Store the individual bytes as big-endian ints, from historical

panda/src/express/memoryInfo.cxx

@@ -142,6 +142,11 @@ update_type_handle(TypeHandle &destination, TypeHandle refined) {
 
   } else if (refined.is_derived_from(destination)) {
     // Updating with a more-specific type, no problem.
+    if (express_cat.is_spam()) {
+      express_cat.spam()
+        << "Updating pointer " << (void *)_ref_ptr << " from type "
+        << destination << " to type " << refined << "\n";
+    }
     destination = refined;
 
   } else {

panda/src/express/memoryUsage.cxx

@@ -259,13 +259,18 @@ operator_new_handler(size_t size) {
 
   if (_recursion_protect) {
     ptr = default_operator_new(size);
+    if (express_cat.is_spam()) {
+      express_cat.spam()
+        << "Allocating pointer " << (void *)ptr
+        << " during recursion protect.\n";
+    }
 
   } else {
     MemoryUsage *mu = get_global_ptr();
     if (mu->_track_memory_usage) {
       ptr = default_operator_new(size);
       get_global_ptr()->ns_record_void_pointer(ptr, size);
-      
+
     } else {
       _is_cpp_operator = true;
       ptr = default_operator_new(size);
@@ -288,6 +293,11 @@ operator_new_handler(size_t size) {
 void MemoryUsage::
 operator_delete_handler(void *ptr) {
   if (_recursion_protect) {
+    if (express_cat.is_spam()) {
+      express_cat.spam()
+        << "Deleting pointer " << (void *)ptr
+        << " during recursion protect.\n";
+    }
     default_operator_delete(ptr);
 
   } else {
@@ -605,6 +615,11 @@ ns_remove_pointer(ReferenceCount *ptr) {
 void MemoryUsage::
 ns_record_void_pointer(void *ptr, size_t size) {
   if (_track_memory_usage) {
+    if (express_cat.is_spam()) {
+      express_cat.spam()
+        << "Recording void pointer " << (void *)ptr << "\n";
+    }
+
     // We have to protect modifications to the table from recursive
     // calls by toggling _recursion_protect while we adjust it.
     _recursion_protect = true;
@@ -654,6 +669,11 @@ ns_record_void_pointer(void *ptr, size_t size) {
 void MemoryUsage::
 ns_remove_void_pointer(void *ptr) {
   if (_track_memory_usage) {
+    if (express_cat.is_spam()) {
+      express_cat.spam()
+        << "Removing void pointer " << (void *)ptr << "\n";
+    }
+
     Table::iterator ti;
     ti = _table.find(ptr);
     if (ti == _table.end()) {
@@ -677,7 +697,8 @@ ns_remove_void_pointer(void *ptr) {
 
     if ((info._flags & MemoryInfo::F_got_ref) != 0) {
       express_cat.error()
-        << "Pointer " << (void *)ptr << " did not destruct before being deleted!\n";
+        << "Pointer " << (void *)ptr
+        << " did not destruct before being deleted!\n";
     }
 
     info._flags &= ~MemoryInfo::F_got_void;

panda/src/express/virtualFile.cxx

@@ -163,6 +163,31 @@ open_read_file() const {
   return NULL;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: VirtualFile::close_read_file
+//       Access: Public
+//  Description: Closes a file opened by a previous call to
+//               open_read_file().  This really just deletes the
+//               istream pointer, but it is recommended to use this
+//               interface instead of deleting it explicitly, to help
+//               work around compiler issues.
+////////////////////////////////////////////////////////////////////
+void VirtualFile::
+close_read_file(istream *stream) const {
+  if (stream != (istream *)NULL) {
+    // For some reason--compiler bug in gcc 3.2?--explicitly deleting
+    // the stream pointer does not call the appropriate global delete
+    // function; instead apparently calling the system delete
+    // function.  So we call the delete function by hand instead.
+#ifndef NDEBUG
+    stream->~istream();
+    (*global_operator_delete)(stream);
+#else
+    delete stream;
+#endif
+  }
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: VirtualFile::read_file
 //       Access: Public
@@ -201,7 +226,7 @@ read_file(string &result) const {
   result.assign(&result_vec[0], result_vec.size());
 
   bool failed = in->fail() && !in->eof();
-  delete in;
+  close_read_file(in);
 
   if (failed) {
     express_cat.info()

panda/src/express/virtualFile.h

@@ -54,6 +54,7 @@ PUBLISHED:
 
   INLINE string read_file() const;
   virtual istream *open_read_file() const;
+  void close_read_file(istream *stream) const;
 
 public:
   bool read_file(string &result) const;

panda/src/express/virtualFileMount.cxx

@@ -30,6 +30,31 @@ VirtualFileMount::
 ~VirtualFileMount() {
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: VirtualFileMount::close_read_file
+//       Access: Public
+//  Description: Closes a file opened by a previous call to
+//               open_read_file().  This really just deletes the
+//               istream pointer, but it is recommended to use this
+//               interface instead of deleting it explicitly, to help
+//               work around compiler issues.
+////////////////////////////////////////////////////////////////////
+void VirtualFileMount::
+close_read_file(istream *stream) const {
+  if (stream != (istream *)NULL) {
+    // For some reason--compiler bug in gcc 3.2?--explicitly deleting
+    // the stream pointer does not call the appropriate global delete
+    // function; instead apparently calling the system delete
+    // function.  So we call the delete function by hand instead.
+#ifndef NDEBUG
+    stream->~istream();
+    (*global_operator_delete)(stream);
+#else
+    delete stream;
+#endif
+  }
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: VirtualFileMount::output
 //       Access: Public, Virtual

panda/src/express/virtualFileMount.h

@@ -51,6 +51,7 @@ public:
   virtual bool is_regular_file(const Filename &file) const=0;
 
   virtual istream *open_read_file(const Filename &file) const=0;
+  void close_read_file(istream *stream) const;
   virtual bool scan_directory(vector_string &contents, 
                               const Filename &dir) const=0;
 

panda/src/express/virtualFileMountSystem.cxx

@@ -72,7 +72,7 @@ open_read_file(const Filename &file) const {
   ifstream *stream = new ifstream;
   if (!pathname.open_read(*stream)) {
     // Couldn't open the file for some reason.
-    delete stream;
+    close_read_file(stream);
     return NULL;
   }
 

panda/src/express/virtualFileSystem.cxx

@@ -575,6 +575,31 @@ get_global_ptr() {
   return _global_ptr;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: VirtualFileSystem::close_read_file
+//       Access: Published
+//  Description: Closes a file opened by a previous call to
+//               open_read_file().  This really just deletes the
+//               istream pointer, but it is recommended to use this
+//               interface instead of deleting it explicitly, to help
+//               work around compiler issues.
+////////////////////////////////////////////////////////////////////
+void VirtualFileSystem::
+close_read_file(istream *stream) const {
+  if (stream != (istream *)NULL) {
+    // For some reason--compiler bug in gcc 3.2?--explicitly deleting
+    // the stream pointer does not call the appropriate global delete
+    // function; instead apparently calling the system delete
+    // function.  So we call the delete function by hand instead.
+#ifndef NDEBUG
+    stream->~istream();
+    (*global_operator_delete)(stream);
+#else
+    delete stream;
+#endif
+  }
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: VirtualFileSystem::scan_mount_points
 //       Access: Public

panda/src/express/virtualFileSystem.h

@@ -84,6 +84,7 @@ PUBLISHED:
 
   INLINE string read_file(const Filename &filename) const;
   INLINE istream *open_read_file(const Filename &filename) const;
+  void close_read_file(istream *stream) const;
 
 public:
   INLINE bool read_file(const Filename &filename, string &result) const;

panda/src/pnmimage/pnmImageHeader.cxx

@@ -21,7 +21,6 @@
 #include "pnmFileType.h"
 #include "pnmReader.h"
 #include "config_pnmimage.h"
-#include "config_express.h"
 #include "virtualFileSystem.h"
 
 ////////////////////////////////////////////////////////////////////
@@ -77,22 +76,9 @@ make_reader(const Filename &filename, PNMFileType *type) const {
     }
 
   } else {
-    if (use_vfs) {
-      VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
-      owns_file = true;
-      file = vfs->open_read_file(filename);
-
-    } else {
-      ifstream *new_istream = new ifstream;
-      Filename actual_name = Filename::binary_filename(filename);
-      if (!actual_name.open_read(*new_istream)) {
-        delete new_istream;
-
-      } else {
-        owns_file = true;
-        file = new_istream;
-      }
-    }
+    VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
+    owns_file = true;
+    file = vfs->open_read_file(filename);
   }
 
   if (file == (istream *)NULL) {
@@ -147,7 +133,14 @@ make_reader(istream *file, bool owns_file, const Filename &filename,
           << "Image file appears to be empty.\n";
       }
       if (owns_file) {
-        delete file;
+        VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
+
+        // We're assuming here that the file was opened via VFS.  That
+        // may not necessarily be the case, but we don't make that
+        // distinction.  However, at the moment at least, that
+        // distinction doesn't matter, since vfs->close_read_file()
+        // just deletes the file pointer anyway.
+        vfs->close_read_file(file);
       }
       return NULL;
     }
@@ -204,14 +197,22 @@ make_reader(istream *file, bool owns_file, const Filename &filename,
         write_types(pnmimage_cat.error(false), 2);
     }
     if (owns_file) {
-      delete file;
+      VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
+
+      // We're assuming here that the file was opened via VFS.  That
+      // may not necessarily be the case, but we don't make that
+      // distinction.  However, at the moment at least, that
+      // distinction doesn't matter, since vfs->close_read_file()
+      // just deletes the file pointer anyway.
+      vfs->close_read_file(file);
     }
     return NULL;
   }
 
   PNMReader *reader = type->make_reader(file, owns_file, magic_number);
   if (reader == NULL && owns_file) {
-    delete file;
+    VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
+    vfs->close_read_file(file);
   }
 
   if (!reader->is_valid()) {

panda/src/pnmimage/pnmReader.cxx

@@ -17,6 +17,7 @@
 ////////////////////////////////////////////////////////////////////
 
 #include "pnmReader.h"
+#include "virtualFileSystem.h"
 
 ////////////////////////////////////////////////////////////////////
 //     Function: PNMReader::Destructor
@@ -26,7 +27,14 @@
 PNMReader::
 ~PNMReader() {
   if (_owns_file) {
-    delete _file;
+    VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
+
+    // We're assuming here that the file was opened via VFS.  That
+    // may not necessarily be the case, but we don't make that
+    // distinction.  However, at the moment at least, that
+    // distinction doesn't matter, since vfs->close_read_file()
+    // just deletes the file pointer anyway.
+    vfs->close_read_file(_file);
   }
   _file = (istream *)NULL;
 }

panda/src/putil/datagramInputFile.cxx

@@ -86,7 +86,8 @@ void DatagramInputFile::
 close() {
   _in_file.close();
   if (_owns_in) {
-    delete _in;
+    VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
+    vfs->close_read_file(_in);
   }
   _in = (istream *)NULL;
   _owns_in = false;

panda/src/putil/load_prc_file.cxx

@@ -47,61 +47,32 @@ load_prc_file(const string &filename) {
 
   ConfigPageManager *cp_mgr = ConfigPageManager::get_global_ptr();
 
-  if (use_vfs) {
-    VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
-    vfs->resolve_filename(path, cp_mgr->get_search_path()) ||
-      vfs->resolve_filename(path, get_model_path());
-
-    istream *file = vfs->open_read_file(path);
-    if (file == (istream *)NULL) {
-      util_cat.error()
-        << "Unable to open " << path << "\n";
-      return NULL;
-    }
+  VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
+  vfs->resolve_filename(path, cp_mgr->get_search_path()) ||
+    vfs->resolve_filename(path, get_model_path());
+  
+  istream *file = vfs->open_read_file(path);
+  if (file == (istream *)NULL) {
+    util_cat.error()
+      << "Unable to open " << path << "\n";
+    return NULL;
+  }
+  
+  util_cat.info()
+    << "Reading " << path << "\n";
+  
+  ConfigPage *page = cp_mgr->make_explicit_page(path);
+  bool read_ok = page->read_prc(*file);
+  vfs->close_read_file(file);
+  
+  if (read_ok) {
+    return page;
     
-    util_cat.info()
-      << "Reading " << path << "\n";
-
-    ConfigPage *page = cp_mgr->make_explicit_page(path);
-    bool read_ok = page->read_prc(*file);
-    delete file;
-
-    if (read_ok) {
-      return page;
-
-    } else {
-      util_cat.info()
-        << "Unable to read " << path << "\n";
-      cp_mgr->delete_explicit_page(page);
-      return NULL;
-    }
-      
   } else {
-    path.resolve_filename(cp_mgr->get_search_path()) ||
-      path.resolve_filename(get_model_path());
-
-    ifstream file;
-    if (!path.open_read(file)) {
-      util_cat.error()
-        << "Unable to open " << path << "\n";
-      return NULL;
-    }
-    
     util_cat.info()
-      << "Reading " << path << "\n";
-
-    ConfigPage *page = cp_mgr->make_explicit_page(path);
-    bool read_ok = page->read_prc(file);
-
-    if (read_ok) {
-      return page;
-
-    } else {
-      util_cat.info()
-        << "Unable to read " << path << "\n";
-      cp_mgr->delete_explicit_page(page);
-      return NULL;
-    }
+      << "Unable to read " << path << "\n";
+    cp_mgr->delete_explicit_page(page);
+    return NULL;
   }
 }
 

pandatool/src/xfile/xFile.cxx

@@ -24,7 +24,6 @@
 #include "config_xfile.h"
 #include "standard_templates.h"
 #include "zStream.h"
-#include "config_express.h"
 #include "virtualFileSystem.h"
 #include "dcast.h"
 
@@ -81,32 +80,17 @@ clear() {
 ////////////////////////////////////////////////////////////////////
 bool XFile::
 read(Filename filename) {
-  ifstream in;
-
   filename.set_text();
-  if (use_vfs) {
-    VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
-    istream *in = vfs->open_read_file(filename);
-    if (in == (istream *)NULL) {
-      xfile_cat.error()
-        << "Cannot open " << filename << " for reading.\n";
-      return false;
-    }
-    bool okflag = read(*in, filename);
-    delete in;
-    return okflag;
-
-  } else {
-    filename.open_read(in);
-
-    if (!in) {
-      xfile_cat.error()
-        << "Cannot open " << filename << " for reading.\n";
-      return false;
-    }
-    
-    return read(in, filename);
+  VirtualFileSystem *vfs = VirtualFileSystem::get_global_ptr();
+  istream *in = vfs->open_read_file(filename);
+  if (in == (istream *)NULL) {
+    xfile_cat.error()
+      << "Cannot open " << filename << " for reading.\n";
+    return false;
   }
+  bool okflag = read(*in, filename);
+  vfs->close_read_file(in);
+  return okflag;
 }
 
 ////////////////////////////////////////////////////////////////////