move CGroup to Group

lib/DB.zig

@@ -16,8 +16,8 @@ const pad = @import("padding.zig");
 const compress = @import("compress.zig");
 const PackedUser = @import("PackedUser.zig");
 const User = @import("User.zig");
-const CGroup = @import("cgroup.zig").CGroup;
 const Group = @import("Group.zig");
+const CGroup = Group.CGroup;
 const PackedGroup = @import("PackedGroup.zig");
 const GroupStored = PackedGroup.GroupStored;
 const ShellSections = @import("shell.zig").ShellWriter.ShellSections;

lib/Group.zig

@@ -1,5 +1,4 @@
 const std = @import("std");
-const ptr_size = @import("cgroup.zig").ptr_size;
 
 const mem = std.mem;
 const meta = std.meta;
@@ -56,7 +55,8 @@ pub fn deinit(self: *Group, allocator: Allocator) void {
     self.* = undefined;
 }
 
-// buffer size in bytes if all strings were zero-terminated.
+// suggested buffer size in bytes if all strings were zero-terminated
+// (for CGroup).
 pub fn strlenZ(self: *const Group) usize {
     var count: usize = 0;
     for (self.members) |member|
@@ -66,6 +66,20 @@ pub fn strlenZ(self: *const Group) usize {
     return count;
 }
 
+// Name type should be 0-terminated, members should be null-terminated, but
+// sentinel is not part of the type (but is always there). Adding sentinel
+// crashes zig compiler in pre-0.10. https://github.com/ziglang/zig/issues/7517
+pub const CGroup = extern struct {
+    gid: u32,
+    // should be [*:0]const u8
+    name: [*]const u8,
+    // Should be [*:null]align(1) const ?[*:0]const u8
+    members: [*]align(1) const ?[*:0]const u8,
+};
+
+// size of the pointer to a single member.
+pub const ptr_size = @sizeOf(meta.Child(meta.fieldInfo(CGroup, .members).field_type));
+
 const testing = std.testing;
 
 test "Group.clone" {

lib/cgroup.zig

@@ -1,15 +0,0 @@
-const meta = @import("std").meta;
-
-// Name type should be 0-terminated, members should be null-terminated, but
-// sentinel is not part of the type (but is always there). Adding sentinel
-// crashes zig compiler in pre-0.10. https://github.com/ziglang/zig/issues/7517
-pub const CGroup = extern struct {
-    gid: u32,
-    // should be [*:0]const u8
-    name: [*]const u8,
-    // Should be [*:null]align(1) const ?[*:0]const u8
-    members: [*]align(1) const ?[*:0]const u8,
-};
-
-// size of the pointer to a single member.
-pub const ptr_size = @sizeOf(meta.Child(meta.fieldInfo(CGroup, .members).field_type));

lib/header.zig

@@ -2,7 +2,7 @@ const std = @import("std");
 const mem = std.mem;
 const math = std.math;
 const native_endian = @import("builtin").target.cpu.arch.endian();
-const ptr_size = @import("cgroup.zig").ptr_size;
+const ptr_size = @import("Group.zig").ptr_size;
 
 const max_shells = @import("shell.zig").max_shells;
 const magic = [4]u8{ 0xf0, 0x9f, 0xa4, 0xb7 };