Accessing the root pages (unsafely, of course)

Dependencies

• [2] 2ZRCQBXP Version bump
• [3] YXKP4AIW New file locks, with multiple sets of free pages
• [4] PRDUE4YA Cleanup + published on crates.io
• [5] OHUZ73MK Versions
• [6] E4MD6T3L Proofreading and commenting of this crate (massive bug fixes included)
• [7] M6PHQUGL fallocate only when necessary
• [8] DASFQGOR Debugging
• [9] OP6SVMOD Resetting history
• [10] 5LSYTRQ6 More docs, example, and fixing the free page diagnostic function for mutable transactions
• [11] WTXLZDYI Fixing bus errors on a full disk
• [*] OFINGD26 implementing prev() on cursors (+ some cleanup)

Change contents

• edit in sanakirja/src/environment/muttxn.rs at line 568
  [3.90730]

  [3.90730]
  +

  + /// The root page of this transaction (use with caution, this page

  + /// contains root databases).

  + pub unsafe fn root_page_mut(&mut self) -> &mut [u8; 4064] {

  + let env = self.env.borrow();

  + let maps = env.mmaps.lock();

  + let ptr = maps[0].ptr.add(self.root * PAGE_SIZE + GLOBAL_HEADER_SIZE);

  + &mut *(ptr as *mut [u8; 4064])

  + }

  +

  + /// The root page of this transaction.

  + pub unsafe fn root_page(&mut self) -> &[u8; 4064] {

  + let env = self.env.borrow();

  + let maps = env.mmaps.lock();

  + let ptr = maps[0].ptr.add(self.root * PAGE_SIZE + GLOBAL_HEADER_SIZE);

  + &*(ptr as *const [u8; 4064])

  + }
• edit in sanakirja/src/environment/mod.rs at line 606
  [13.18035]

  [13.18035]
  + }

  +

  + /// The root page of this transaction.

  + pub unsafe fn root_page(&mut self) -> &[u8; 4064] {

  + let env = self.env.borrow();

  + let maps = env.mmaps.lock();

  + let ptr = maps[0].ptr.add(self.root * PAGE_SIZE + GLOBAL_HEADER_SIZE);

  + &*(ptr as *const [u8; 4064])
• replacement in sanakirja/Cargo.toml at line 3
  [3.108441]→[2.19:37](∅→∅)
  − version = "1.2.0"
  [3.108441]

  [3.108459]
  + version = "1.2.1"
• replacement in sanakirja/Cargo.toml at line 29
  [3.84]→[2.38:105](∅→∅)
  − sanakirja-core = { path = "../sanakirja-core", version = "1.2.0" }
  [3.84]

  [3.5528]
  + sanakirja-core = { path = "../sanakirja-core", version = "1.2.8" }