| Scopira
    20080306
    | 
#include <archiveflow.h>
 
  
 | Public Member Functions | |
| archiveiflow (void) | |
| ctor | |
| virtual bool | failed (void) const | 
| failed state? | |
| std::string | open (const std::string &filename, const std::string &tagprefix) | 
|  Public Member Functions inherited from scopira::tool::isoiflow | |
| isoiflow (bool doref, itflow_i *rz) | |
| constructor + open | |
| virtual | ~isoiflow () | 
| destructor | |
| virtual bool | read_object (object *&out) | 
| reads a virtual object from the stream | |
|  Public Member Functions inherited from scopira::tool::polyiflow | |
| polyiflow (bool doref, itflow_i *rz) | |
| constructor + open | |
| virtual | ~polyiflow () | 
| destructor | |
| virtual size_t | read (byte_t *_buf, size_t _maxsize) | 
| read raw block data, returns num read in | |
| virtual bool | read_bool (bool &) | 
| virtual bool | read_char (char &) | 
| virtual bool | read_short (short &) | 
| virtual bool | read_int (int &) | 
| virtual bool | read_size_t (size_t &) | 
| virtual bool | read_int64_t (int64_t &) | 
| virtual bool | read_long (long &) | 
| virtual bool | read_float (float &) | 
| virtual bool | read_double (double &) | 
| virtual bool | read_string (std::string &) | 
| void | open (itflow_i *fi) | 
| void | close (void) | 
| closes the current file | |
|  Public Member Functions inherited from scopira::tool::iobjflow_i | |
| template<class TT > | |
| bool | read_object_type (TT *&out) | 
| template<class TT > | |
| bool | read_object_type (count_ptr< TT > &out) | 
|  Public Member Functions inherited from scopira::tool::itflow_i | |
| template<class TT > | |
| bool | read_generic (TT &v) | 
|  Public Member Functions inherited from scopira::tool::iflow_i | |
| virtual size_t | read_byte (byte_t &out) | 
| template<class TT > | |
| size_t | read_array (TT *_buf, size_t _numelem) | 
| size_t | read_void (void *_buf, size_t _maxsize) | 
|  Public Member Functions inherited from scopira::tool::object | |
| virtual | ~object () | 
| int | add_ref (void) const | 
| bool | sub_ref (void) const | 
| void | auto_ref (void) const | 
| int | current_ref (void) const | 
| virtual scopira::tool::oflow_i & | print (scopira::tool::oflow_i &o) const | 
| virtual bool | load (scopira::tool::iobjflow_i &in) | 
| virtual void | save (scopira::tool::oobjflow_i &out) const | 
| bool | is_alive_object (void) const | 
| bool | is_dead_object (void) const | 
| Additional Inherited Members | |
|  Public Types inherited from scopira::tool::flow_i | |
| enum | { input_c = 1, output_c = 2 } | 
| typedef scopira::tool::byte_t | byte_t | 
| typedef int | mode_t | 
|  Protected Types inherited from scopira::tool::isoiflow | |
| typedef std::map< int, scopira::tool::object * > | idmap_t | 
|  Protected Types inherited from scopira::tool::polyiflow | |
| typedef std::map< int, const std::type_info * > | typemap_t | 
|  Protected Member Functions inherited from scopira::tool::polyiflow | |
| bool | read_object_impl (object *&out) | 
|  Protected Member Functions inherited from scopira::tool::object | |
| object (void) | |
| object (bool neverusecounter) | |
|  Protected Attributes inherited from scopira::tool::isoiflow | |
| idmap_t | dm_idmap | 
|  Protected Attributes inherited from scopira::tool::polyiflow | |
| count2_ptr< itflow_i > | dm_file | 
| typemap_t | dm_typemap | 
Opens an archive for reading.
An archive contains a header, after that you simply read the various types using this objects' flow interfaces.
| std::string scopira::tool::archiveiflow::open | ( | const std::string & | filename, | 
| const std::string & | tagprefix | ||
| ) | 
Attempts to open a previously created archive.
The that file is not an archive, or the tag within the archive does not begin with tagprefix, the stream goes into a failed state and empty string is returned.
On success, the actual tag is returned. On failure, "" is returned (and failed() is set).