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00015 #ifndef BAMCACHERECORD_H
00016 #define BAMCACHERECORD_H
00017
00018 #include "pandabase.h"
00019 #include "typedWritableReferenceCount.h"
00020 #include "pointerTo.h"
00021 #include "linkedListNode.h"
00022
00023 class BamWriter;
00024 class BamReader;
00025 class Datagram;
00026 class DatagramIterator;
00027 class FactoryParams;
00028 class BamCacheRecord;
00029
00030
00031
00032
00033
00034
00035
00036
00037
00038 class EXPCL_PANDA_PUTIL BamCacheRecord : public TypedWritableReferenceCount,
00039 public LinkedListNode {
00040 private:
00041 BamCacheRecord();
00042 BamCacheRecord(const Filename &source_pathname,
00043 const Filename &cache_filename);
00044 BamCacheRecord(const BamCacheRecord ©);
00045
00046 PUBLISHED:
00047 virtual ~BamCacheRecord();
00048
00049 INLINE PT(BamCacheRecord) make_copy() const;
00050
00051 INLINE bool operator == (const BamCacheRecord &other) const;
00052
00053 INLINE const Filename &get_source_pathname() const;
00054 INLINE const Filename &get_cache_filename() const;
00055 INLINE time_t get_recorded_time() const;
00056
00057 INLINE int get_num_dependent_files() const;
00058 INLINE const Filename &get_dependent_pathname(int n) const;
00059
00060 bool dependents_unchanged() const;
00061 void clear_dependent_files();
00062 void add_dependent_file(const Filename &pathname);
00063
00064 INLINE bool has_data() const;
00065 INLINE void clear_data();
00066 INLINE TypedWritable *get_data() const;
00067 INLINE bool extract_data(TypedWritable *&ptr, ReferenceCount *&ref_ptr);
00068 INLINE void set_data(TypedWritable *ptr, ReferenceCount *ref_ptr);
00069 INLINE void set_data(TypedWritable *ptr, int dummy);
00070
00071 void output(ostream &out) const;
00072 void write(ostream &out, int indent_level = 0) const;
00073
00074 private:
00075
00076 class SortByAccessTime {
00077 public:
00078 INLINE bool operator () (const BamCacheRecord *a, const BamCacheRecord *b) const;
00079 };
00080
00081 static string format_timestamp(time_t timestamp);
00082
00083 Filename _source_pathname;
00084 Filename _cache_filename;
00085 time_t _recorded_time;
00086 off_t _record_size;
00087
00088 class DependentFile {
00089 public:
00090 Filename _pathname;
00091 time_t _timestamp;
00092 off_t _size;
00093 };
00094
00095 typedef pvector<DependentFile> DependentFiles;
00096 DependentFiles _files;
00097
00098
00099
00100 Filename _cache_pathname;
00101 TypedWritable *_ptr;
00102 ReferenceCount *_ref_ptr;
00103
00104
00105
00106
00107 time_t _record_access_time;
00108
00109 public:
00110 static void register_with_read_factory();
00111 virtual void write_datagram(BamWriter *manager, Datagram &dg);
00112
00113 protected:
00114 static TypedWritable *make_from_bam(const FactoryParams ¶ms);
00115 void fillin(DatagramIterator &scan, BamReader *manager);
00116
00117 public:
00118 static TypeHandle get_class_type() {
00119 return _type_handle;
00120 }
00121 static void init_type() {
00122 TypedWritableReferenceCount::init_type();
00123 register_type(_type_handle, "BamCacheRecord",
00124 TypedWritableReferenceCount::get_class_type());
00125 }
00126 virtual TypeHandle get_type() const {
00127 return get_class_type();
00128 }
00129 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00130
00131 private:
00132 static TypeHandle _type_handle;
00133
00134 friend class BamCache;
00135 friend class BamCacheIndex;
00136 friend class BamCacheRecord::SortByAccessTime;
00137 };
00138
00139 INLINE ostream &operator << (ostream &out, const BamCacheRecord &record) {
00140 record.output(out);
00141 return out;
00142 }
00143
00144 #include "bamCacheRecord.I"
00145
00146 #endif