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╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ event.zig ────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯

╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯

.. embed/ event/ test/ ui/ command.zig diff3.zig ╭─────────────────────────────────╮ │event.zig │ ╰─────────────────────────────────╯ lib.zig main.zig main_wasm.zig serve.zig serve_common.zig serve_http.zig serve_ssh.zig serve_ssh_protocol.zig test.zig testnet.zig try.zig ui.zig web.zig

1757 buffer_ptr.* = std.Io.Writer.Allocating.init(allocator); 1758 errdefer buffer_ptr.deinit(); 1759 1760 const db_ptr = try allocator.create(DB); 1761 errdefer allocator.destroy(db_ptr); 1762 // the db is scratch state that gets deleted after iteration, so 1763 // there is nothing worth fsyncing 1764 db_ptr.* = try DB.init(.{ .io = io, .file = db_file, .buffer = buffer_ptr, .fsync = false }); 1765 1766 const map = try DB.HashMap(.read_write).init(db_ptr.rootCursor()); 1767 1768 const parent_to_children_cursor = try map.putCursor(hash.hashInt(repo_opts.hash, "parent->children")); 1769 const parent_to_children = try DB.HashMap(.read_write).init(parent_to_children_cursor); 1770 1771 const child_to_pending_parents_cursor = try map.putCursor(hash.hashInt(repo_opts.hash, "child->pending-parents")); 1772 const child_to_pending_parents = try DB.HashMap(.read_write).init(child_to_pending_parents_cursor); 1773 1774 const ready_queue_cursor = try map.putCursor(hash.hashInt(repo_opts.hash, "ready-queue")); 1775 const ready_queue = try DB.ArrayList(.read_write).init(ready_queue_cursor); 1776 1777 var self = CommitIterator(repo_kind, repo_opts){ 1778 .repo_dir = state.core.repo_dir, 1779 .db_file = db_file, 1780 .db = db_ptr, 1781 .parent_to_children = parent_to_children, 1782 .child_to_pending_parents = child_to_pending_parents, 1783 .ready_queue = ready_queue, 1784 .ready_queue_index = 0, 1785 .newest_object_id = null, 1786 .oldest_object_id = null, 1787 }; 1788 errdefer self.deinit(io, allocator); 1789 1790 try self.collect(state, io, allocator, consumed_object_ids, ref); 1791 1792 return self; 1793 } 1794 1795 pub fn deinit(self: *CommitIterator(repo_kind, repo_opts), io: std.Io, allocator: std.mem.Allocator) void { 1796 self.db_file.close(io); 1797 self.db.core.memory.buffer.deinit(); 1798 allocator.destroy(self.db.core.memory.buffer); 1799 self.repo_dir.deleteFile(io, db_name) catch {}; 1800 allocator.destroy(self.db); 1801 } 1802 1803 pub fn next(self: *CommitIterator(repo_kind, repo_opts)) !?[hash.byteLen(repo_opts.hash)]u8 { 1804 if (self.ready_queue_index >= try self.ready_queue.count()) return null; 1805 1806 const oid = try readOidFromList(self.ready_queue.readOnly(), self.ready_queue_index); 1807 self.ready_queue_index += 1; 1808 1809 try self.enqueueChildren(&oid); 1810 return oid; 1811 } 1812 1813 fn collect( 1814 self: *CommitIterator(repo_kind, repo_opts), 1815 state: rp.Repo(repo_kind, repo_opts).State(.read_only), 1816 io: std.Io, 1817 allocator: std.mem.Allocator, 1818 consumed_object_ids: DB.HashMap(.read_only), 1819 ref: rf.Ref, 1820 ) !void { 1821 const map = try DB.HashMap(.read_write).init(self.db.rootCursor()); 1822 1823 const walk_queue_cursor = try map.putCursor(hash.hashInt(repo_opts.hash, "walk-queue")); 1824 const walk_queue = try DB.ArrayList(.read_write).init(walk_queue_cursor); 1825 var walk_queue_index: u64 = 0; 1826 1827 const seen_object_ids_cursor = try map.putCursor(hash.hashInt(repo_opts.hash, "seen-object-ids")); 1828 const seen_object_ids = try DB.HashSet(.read_write).init(seen_object_ids_cursor); 1829 1830 const head_oid_hex = (try rf.readRecur(repo_kind, repo_opts, state, io, .{ .ref = ref })) orelse return error.OidNotFound; 1831 var head_oid: [hash.byteLen(repo_opts.hash)]u8 = undefined; 1832 _ = try std.fmt.hexToBytes(&head_oid, &head_oid_hex); 1833 try walk_queue.append(.{ .bytes = &head_oid }); 1834 1835 while (walk_queue_index < try walk_queue.count()) { 1836 const oid = try readOidFromList(walk_queue.readOnly(), walk_queue_index); 1837 const oid_int = hash.bytesToInt(repo_opts.hash, &oid); 1838 1839 walk_queue_index += 1; 1840 1841 // if we've seen this object id, skip it 1842 if (null != try seen_object_ids.getCursor(oid_int)) { 1843 continue; 1844 } 1845 1846 try seen_object_ids.put(oid_int, .{ .bytes = &oid }); 1847 1848 var commit_object = try obj.Object(repo_kind, repo_opts).init(state, io, allocator, &std.fmt.bytesToHex(oid, .lower)); 1849 defer commit_object.deinit(); 1850 1851 // if this object id has already been consumed, skip it 1852 if (null != try consumed_object_ids.getCursor(oid_int)) { 1853 continue; 1854 } 1855 1856 if (self.newest_object_id == null) self.newest_object_id = oid; 1857 self.oldest_object_id = oid; 1858 1859 const parent_oids = commit_object.content.commit.metadata.parent_oids orelse return error.ParentOidsNotFound; 1860 var pending_parent_count: u64 = 0; 1861 for (parent_oids) |*parent_oid| { 1862 var parent_oid_bytes: [hash.byteLen(repo_opts.hash)]u8 = undefined; 1863 _ = try std.fmt.hexToBytes(&parent_oid_bytes, parent_oid); 1864 const parent_oid_int = hash.bytesToInt(repo_opts.hash, &parent_oid_bytes); 1865 1866 // if this object id has already been consumed, skip it 1867 if (null != try consumed_object_ids.getCursor(parent_oid_int)) { 1868 continue; 1869 } 1870 1871 // if this object id hasn't already been seen, add it to the walk queue 1872 if (null == try seen_object_ids.getCursor(parent_oid_int)) { 1873 try walk_queue.append(.{ .bytes = &parent_oid_bytes }); 1874 } 1875 1876 const children_cursor = try self.parent_to_children.putCursor(parent_oid_int); 1877 const children = try DB.HashSet(.read_write).init(children_cursor); 1878 try children.put(oid_int, .{ .bytes = &oid }); 1879 pending_parent_count += 1; 1880 } 1881 1882 if (pending_parent_count == 0) { 1883 try self.ready_queue.append(.{ .bytes = &oid }); 1884 } else { 1885 try self.child_to_pending_parents.put(oid_int, .{ .uint = pending_parent_count }); 1886 } 1887 } 1888 } 1889 1890 fn enqueueChildren(self: *CommitIterator(repo_kind, repo_opts), oid: *const [hash.byteLen(repo_opts.hash)]u8) !void { 1891 const oid_int = hash.bytesToInt(repo_opts.hash, oid); 1892 const children_cursor = try self.parent_to_children.getCursor(oid_int) orelse return; 1893 const children = try DB.HashSet(.read_only).init(children_cursor); 1894 var children_iter = try children.iterator(); 1895 1896 while (try children_iter.next()) |*child_cursor| { 1897 const kv_pair = try child_cursor.readKeyValuePair(); 1898 const child_oid_int = kv_pair.hash; 1899 const pending_parent_cursor = try self.child_to_pending_parents.getCursor(child_oid_int) orelse return error.CursorNotFound; 1900 const pending_parent_count = try pending_parent_cursor.readUint(); 1901 1902 if (pending_parent_count <= 1) { 1903 _ = try self.child_to_pending_parents.remove(child_oid_int); 1904 const child_oid = hash.intToBytes(hash.HashInt(repo_opts.hash), child_oid_int); 1905 try self.ready_queue.append(.{ .bytes = &child_oid }); 1906 } else { 1907 try self.child_to_pending_parents.put(child_oid_int, .{ .uint = pending_parent_count - 1 }); 1908 } 1909 } 1910 } 1911 1912 fn readOidFromList(list: DB.ArrayList(.read_only), index: u64) ![hash.byteLen(repo_opts.hash)]u8 { 1913 const oid_cursor = try list.getCursor(index) orelse return error.CursorNotFound; 1914 var oid: [hash.byteLen(repo_opts.hash)]u8 = undefined; 1915 _ = try oid_cursor.readBytes(&oid); 1916 return oid; 1917 } 1918 }; 1919 } 1920