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offsets are u64, indices are u32

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Motiejus Jakštys 2022-03-08 20:48:33 +02:00 committed by Motiejus Jakštys
parent fc469acbf9
commit 9aa52e5a69
2 changed files with 17 additions and 17 deletions
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2
README.md
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@ -369,7 +369,7 @@ shellBlob <= 4032 shell data blob (max 63*64 bytes)
groups ? packed Group entries (8b padding)
users ? packed User entries (8b padding)
groupMembers ? per-group varint memberlist (no padding)
userGids ? per-user varint gidlist (8b padding)
userGids ? per-user varint gidlist (no padding)
```
Section creation order:

32
src/sections.zig
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@ -35,10 +35,10 @@ const Corpus = struct {
usersMulti: MultiArrayList(User),
groupsMulti: MultiArrayList(Group),
name2user: StringHashMap(u64),
name2group: StringHashMap(u64),
groupname2users: StringHashMap([]u64),
username2groups: StringHashMap([]u64),
name2user: StringHashMap(u32),
name2group: StringHashMap(u32),
groupname2users: StringHashMap([]u32),
username2groups: StringHashMap([]u32),
pub fn init(
baseAllocator: Allocator,
@ -68,33 +68,33 @@ const Corpus = struct {
for (groups) |group|
groupsMulti.appendAssumeCapacity(group);
var name2user = StringHashMap(u64).init(allocator);
var name2group = StringHashMap(u64).init(allocator);
var name2user = StringHashMap(u32).init(allocator);
var name2group = StringHashMap(u32).init(allocator);
for (users) |*user, i| {
var res1 = try name2user.getOrPut(user.name);
if (res1.found_existing)
return error.Duplicate;
res1.value_ptr.* = i;
res1.value_ptr.* = @intCast(u32, i);
}
for (groups) |*group, i| {
var res1 = try name2group.getOrPut(group.name);
if (res1.found_existing)
return error.Duplicate;
res1.value_ptr.* = i;
res1.value_ptr.* = @intCast(u32, i);
}
var groupname2users = StringHashMap([]u64).init(allocator);
var groupname2users = StringHashMap([]u32).init(allocator);
// uses baseAllocator, because it will be freed before
// returning from this function. This keeps the arena clean.
var username2groups = StringHashMap(
ArrayListUnmanaged(u64),
ArrayListUnmanaged(u32),
).init(baseAllocator);
defer username2groups.deinit();
for (groups) |*group, i| {
var members = try allocator.alloc(u64, group.members.count());
var members = try allocator.alloc(u32, group.members.count());
members.len = 0;
var it = group.members.iterator();
@ -108,8 +108,8 @@ const Corpus = struct {
var groupsOfMember = try username2groups.getOrPut(memberName.*);
if (!groupsOfMember.found_existing)
groupsOfMember.value_ptr.* = ArrayListUnmanaged(u64){};
try groupsOfMember.value_ptr.*.append(allocator, i);
groupsOfMember.value_ptr.* = ArrayListUnmanaged(u32){};
try groupsOfMember.value_ptr.*.append(allocator, @intCast(u32, i));
}
var result = try groupname2users.getOrPut(group.name);
@ -120,14 +120,14 @@ const Corpus = struct {
var it1 = groupname2users.valueIterator();
while (it1.next()) |groupUsers| {
sort.sort(u64, groupUsers.*, {}, comptime sort.asc(u64));
sort.sort(u32, groupUsers.*, {}, comptime sort.asc(u32));
}
var it2 = username2groups.valueIterator();
while (it2.next()) |userGroups|
sort.sort(u64, userGroups.items, {}, comptime sort.asc(u64));
sort.sort(u32, userGroups.items, {}, comptime sort.asc(u32));
var username2groups_final = StringHashMap([]u64).init(allocator);
var username2groups_final = StringHashMap([]u32).init(allocator);
var it = username2groups.iterator();
while (it.next()) |elem| {
const username = elem.key_ptr.*;