#include <flint_btreebase.h>
Public Member Functions | |
| FlintTable_base () | |
| Construct an object with all zero fields. | |
| FlintTable_base (const FlintTable_base &other) | |
| Copy constructor. | |
| ~FlintTable_base () | |
| Destructor - frees resources. | |
| bool | read (const std::string &name, char ch, bool read_bitmap, std::string &err_msg) |
| Read values from a base file. | |
| uint4 | get_revision () const |
| uint4 | get_block_size () const |
| uint4 | get_root () const |
| uint4 | get_level () const |
| uint4 | get_bit_map_size () const |
| uint4 | get_item_count () const |
| uint4 | get_last_block () const |
| bool | get_have_fakeroot () const |
| bool | get_sequential () const |
| void | set_revision (uint4 revision_) |
| void | set_block_size (uint4 block_size_) |
| void | set_root (uint4 root_) |
| void | set_level (uint4 level_) |
| void | set_item_count (uint4 item_count_) |
| void | set_have_fakeroot (bool have_fakeroot_) |
| void | set_sequential (bool sequential_) |
| void | write_to_file (const std::string &filename, char base_letter, const std::string &tablename, int changes_fd, const std::string *changes_tail) |
| Write the btree base file to disk. | |
| bool | block_free_at_start (uint4 n) const |
| true iff block n was free at the start of the transaction on the B-tree. | |
| void | free_block (uint4 n) |
| uint4 | next_free_block () |
| bool | find_changed_block (uint4 *n) |
| Find the first changed block at or after position *n. | |
| bool | block_free_now (uint4 n) |
| void | calculate_last_block () |
| void | clear_bit_map () |
| void | commit () |
| bool | is_empty () const |
| void | swap (FlintTable_base &other) |
Private Member Functions | |
| void | operator= (const FlintTable_base &other) |
| private assignment operator - you probably want swap() instead | |
| void | extend_bit_map () |
| bool | do_unpack_uint (const char **start, const char *end, uint4 *dest, std::string &err_msg, const std::string &basename, const char *varname) |
| Do most of the error handling from F_unpack_uint(). | |
Private Attributes | |
| uint4 | revision |
| uint4 | block_size |
| uint4 | root |
| uint4 | level |
| uint4 | bit_map_size |
| uint4 | item_count |
| uint4 | last_block |
| bool | have_fakeroot |
| bool | sequential |
| uint4 | bit_map_low |
| byte offset into the bit map below which there are no free blocks | |
| byte * | bit_map0 |
| the initial state of the bit map of blocks: 1 means in use, 0 means free | |
| byte * | bit_map |
| the current state of the bit map of blocks | |
Definition at line 31 of file flint_btreebase.h.
| FlintTable_base::FlintTable_base | ( | ) |
| FlintTable_base::FlintTable_base | ( | const FlintTable_base & | other | ) |
Copy constructor.
Definition at line 92 of file flint_btreebase.cc.
References bit_map, bit_map0, and bit_map_size.
| FlintTable_base::~FlintTable_base | ( | ) |
| bool FlintTable_base::block_free_at_start | ( | uint4 | n | ) | const |
true iff block n was free at the start of the transaction on the B-tree.
Definition at line 350 of file flint_btreebase.cc.
References bit_map0.
Referenced by FlintTable::alter(), BtreeCheck::block_check(), BtreeCheck::check(), and FlintTable::write_block().
| bool FlintTable_base::block_free_now | ( | uint4 | n | ) |
Definition at line 463 of file flint_btreebase.cc.
References bit_map.
Referenced by BtreeCheck::block_check().
| void FlintTable_base::calculate_last_block | ( | ) |
Definition at line 471 of file flint_btreebase.cc.
References bit_map, bit_map_size, and last_block.
Referenced by FlintTable::write_changed_blocks(), and write_to_file().
| void FlintTable_base::clear_bit_map | ( | ) |
Definition at line 509 of file flint_btreebase.cc.
References bit_map, and bit_map_size.
Referenced by FlintTable::commit().
| void FlintTable_base::commit | ( | ) |
Definition at line 516 of file flint_btreebase.cc.
References bit_map, bit_map0, bit_map_low, and bit_map_size.
Referenced by FlintTable::commit().
| bool FlintTable_base::do_unpack_uint | ( | const char ** | start, | |
| const char * | end, | |||
| uint4 * | dest, | |||
| std::string & | err_msg, | |||
| const std::string & | basename, | |||
| const char * | varname | |||
| ) | [private] |
Do most of the error handling from F_unpack_uint().
Definition at line 144 of file flint_btreebase.cc.
References F_unpack_uint().
| void FlintTable_base::extend_bit_map | ( | ) | [private] |
Definition at line 384 of file flint_btreebase.cc.
References bit_map, bit_map0, BIT_MAP_INC, and bit_map_size.
Referenced by next_free_block().
| bool FlintTable_base::find_changed_block | ( | uint4 * | n | ) |
Find the first changed block at or after position *n.
Returns true if such a block was found, or false otherwise.
Definition at line 445 of file flint_btreebase.cc.
References bit_map, bit_map0, and last_block.
Referenced by FlintTable::write_changed_blocks().
| void FlintTable_base::free_block | ( | uint4 | n | ) |
Definition at line 363 of file flint_btreebase.cc.
References bit_map, bit_map0, and bit_map_low.
Referenced by FlintTable::alter(), BtreeCheck::block_check(), and FlintTable::delete_item().
| uint4 FlintTable_base::get_bit_map_size | ( | ) | const [inline] |
Definition at line 60 of file flint_btreebase.h.
Referenced by BtreeCheck::check(), FlintTable::read_block(), and FlintTable::write_block().
| uint4 FlintTable_base::get_block_size | ( | ) | const [inline] |
Definition at line 57 of file flint_btreebase.h.
Referenced by FlintTable::basic_open(), and FlintTable::cancel().
| bool FlintTable_base::get_have_fakeroot | ( | ) | const [inline] |
Definition at line 63 of file flint_btreebase.h.
Referenced by FlintTable::basic_open(), and FlintTable::cancel().
| uint4 FlintTable_base::get_item_count | ( | ) | const [inline] |
Definition at line 61 of file flint_btreebase.h.
Referenced by FlintTable::basic_open(), and FlintTable::cancel().
| uint4 FlintTable_base::get_last_block | ( | ) | const [inline] |
Definition at line 62 of file flint_btreebase.h.
Referenced by BtreeCheck::check(), and FlintTable::next_for_sequential().
| uint4 FlintTable_base::get_level | ( | ) | const [inline] |
Definition at line 59 of file flint_btreebase.h.
Referenced by FlintTable::basic_open(), and FlintTable::cancel().
| uint4 FlintTable_base::get_revision | ( | ) | const [inline] |
Definition at line 56 of file flint_btreebase.h.
References Xapian::revision().
Referenced by FlintTable::basic_open(), and FlintTable::cancel().
| uint4 FlintTable_base::get_root | ( | ) | const [inline] |
Definition at line 58 of file flint_btreebase.h.
Referenced by FlintTable::basic_open(), and FlintTable::cancel().
| bool FlintTable_base::get_sequential | ( | ) | const [inline] |
Definition at line 64 of file flint_btreebase.h.
Referenced by FlintTable::basic_open(), and FlintTable::cancel().
| bool FlintTable_base::is_empty | ( | ) | const |
Definition at line 498 of file flint_btreebase.cc.
References bit_map, and bit_map_size.
Referenced by BtreeCheck::check().
| uint4 FlintTable_base::next_free_block | ( | ) |
Definition at line 422 of file flint_btreebase.cc.
References bit_map, bit_map0, bit_map_low, bit_map_size, extend_bit_map(), and last_block.
Referenced by FlintTable::add_item(), FlintTable::alter(), FlintTable::read_root(), and FlintTable::split_root().
| void FlintTable_base::operator= | ( | const FlintTable_base & | other | ) | [private] |
private assignment operator - you probably want swap() instead
| bool FlintTable_base::read | ( | const std::string & | name, | |
| char | ch, | |||
| bool | read_bitmap, | |||
| std::string & | err_msg | |||
| ) |
Read values from a base file.
| name | The base of the filename | |
| ch | The suffix | |
| read_bitmap | True if we should read the bitmap | |
| err_msg | An error string which will be appended to for some errors instead of throwing an exception. |
Definition at line 173 of file flint_btreebase.cc.
References bit_map, bit_map0, bit_map_size, block_size, CURR_FORMAT, DO_UNPACK_UINT_ERRCHECK, F_unpack_uint(), Xapian::Internal::format(), have_fakeroot, io_read(), item_count, last_block, level, msvc_posix_open(), O_BINARY, Xapian::InMemory::open(), REASONABLE_BASE_SIZE, revision, root, sequential, and Xapian::Internal::str().
Referenced by FlintTable::basic_open(), and FlintTable::cancel().
| void FlintTable_base::set_block_size | ( | uint4 | block_size_ | ) | [inline] |
| void FlintTable_base::set_have_fakeroot | ( | bool | have_fakeroot_ | ) | [inline] |
Definition at line 81 of file flint_btreebase.h.
Referenced by FlintTable::commit(), and FlintTable::create_and_open().
| void FlintTable_base::set_item_count | ( | uint4 | item_count_ | ) | [inline] |
| void FlintTable_base::set_level | ( | uint4 | level_ | ) | [inline] |
| void FlintTable_base::set_revision | ( | uint4 | revision_ | ) | [inline] |
Definition at line 66 of file flint_btreebase.h.
References Xapian::revision().
Referenced by FlintTable::commit(), and FlintTable::create_and_open().
| void FlintTable_base::set_root | ( | uint4 | root_ | ) | [inline] |
| void FlintTable_base::set_sequential | ( | bool | sequential_ | ) | [inline] |
Definition at line 84 of file flint_btreebase.h.
Referenced by FlintTable::commit(), and FlintTable::create_and_open().
| void FlintTable_base::swap | ( | FlintTable_base & | other | ) |
Definition at line 119 of file flint_btreebase.cc.
References bit_map, bit_map0, bit_map_low, bit_map_size, block_size, have_fakeroot, item_count, last_block, level, revision, root, and sequential.
Referenced by FlintTable::basic_open().
| void FlintTable_base::write_to_file | ( | const std::string & | filename, | |
| char | base_letter, | |||
| const std::string & | tablename, | |||
| int | changes_fd, | |||
| const std::string * | changes_tail | |||
| ) |
Write the btree base file to disk.
Definition at line 288 of file flint_btreebase.cc.
References bit_map, bit_map_size, block_size, calculate_last_block(), CURR_FORMAT, F_pack_string(), F_pack_uint(), have_fakeroot, io_sync(), io_write(), item_count, last_block, level, msvc_posix_open(), O_BINARY, Xapian::InMemory::open(), revision, root, and sequential.
Referenced by FlintTable::commit(), and FlintTable::create_and_open().
byte* FlintTable_base::bit_map [private] |
the current state of the bit map of blocks
Definition at line 158 of file flint_btreebase.h.
Referenced by block_free_now(), calculate_last_block(), clear_bit_map(), commit(), extend_bit_map(), find_changed_block(), FlintTable_base(), free_block(), is_empty(), next_free_block(), read(), swap(), write_to_file(), and ~FlintTable_base().
byte* FlintTable_base::bit_map0 [private] |
the initial state of the bit map of blocks: 1 means in use, 0 means free
Definition at line 155 of file flint_btreebase.h.
Referenced by block_free_at_start(), commit(), extend_bit_map(), find_changed_block(), FlintTable_base(), free_block(), next_free_block(), read(), swap(), and ~FlintTable_base().
uint4 FlintTable_base::bit_map_low [private] |
byte offset into the bit map below which there are no free blocks
Definition at line 151 of file flint_btreebase.h.
Referenced by commit(), free_block(), next_free_block(), and swap().
uint4 FlintTable_base::bit_map_size [private] |
Definition at line 142 of file flint_btreebase.h.
Referenced by calculate_last_block(), clear_bit_map(), commit(), extend_bit_map(), FlintTable_base(), is_empty(), next_free_block(), read(), swap(), and write_to_file().
uint4 FlintTable_base::block_size [private] |
Definition at line 139 of file flint_btreebase.h.
Referenced by read(), swap(), and write_to_file().
bool FlintTable_base::have_fakeroot [private] |
Definition at line 145 of file flint_btreebase.h.
Referenced by read(), swap(), and write_to_file().
uint4 FlintTable_base::item_count [private] |
Definition at line 143 of file flint_btreebase.h.
Referenced by read(), swap(), and write_to_file().
uint4 FlintTable_base::last_block [private] |
Definition at line 144 of file flint_btreebase.h.
Referenced by calculate_last_block(), find_changed_block(), next_free_block(), read(), swap(), and write_to_file().
uint4 FlintTable_base::level [private] |
Definition at line 141 of file flint_btreebase.h.
Referenced by read(), swap(), and write_to_file().
uint4 FlintTable_base::revision [private] |
Definition at line 138 of file flint_btreebase.h.
Referenced by read(), swap(), and write_to_file().
uint4 FlintTable_base::root [private] |
Definition at line 140 of file flint_btreebase.h.
Referenced by read(), swap(), and write_to_file().
bool FlintTable_base::sequential [private] |
Definition at line 146 of file flint_btreebase.h.
Referenced by read(), swap(), and write_to_file().