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cdp: increase msg size 16KB -> 256KB

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And move header size encoding from 2 bytes -> 2 bytes

Signed-off-by: Francis Bouvier <francis@lightpanda.io>
This commit is contained in:
Francis Bouvier
2024-12-04 22:54:21 +01:00
parent c9ca170d57
commit 913d3af938
2 changed files with 19 additions and 16 deletions
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31
src/msg.zig
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@@ -18,17 +18,20 @@
const std = @import("std");
pub const MsgSize = 16 * 1204; // 16KB
pub const HeaderSize = 2;
pub const HeaderSize = 4;
pub const MsgSize = 256 * 1204; // 256KB
// NOTE: Theorically we could go up to 4GB with a 4 bytes binary encoding
// but we prefer to put a lower hard limit for obvious memory size reasons.
pub const MaxSize = HeaderSize + MsgSize;
pub const Msg = struct {
pub fn getSize(data: []const u8) usize {
return std.mem.readInt(u16, data[0..HeaderSize], .little);
return std.mem.readInt(u32, data[0..HeaderSize], .little);
}
pub fn setSize(len: usize, header: *[2]u8) void {
std.mem.writeInt(u16, header, @intCast(len), .little);
pub fn setSize(len: usize, header: *[4]u8) void {
std.mem.writeInt(u32, header, @intCast(len), .little);
}
};
@@ -121,26 +124,26 @@ test "Buffer" {
const cases = [_]Case{
// simple
.{ .input = .{ 2, 0 } ++ "ok", .nb = 1 },
.{ .input = .{ 2, 0, 0, 0 } ++ "ok", .nb = 1 },
// combined
.{ .input = .{ 2, 0 } ++ "ok" ++ .{ 3, 0 } ++ "foo", .nb = 2 },
.{ .input = .{ 2, 0, 0, 0 } ++ "ok" ++ .{ 3, 0, 0, 0 } ++ "foo", .nb = 2 },
// multipart
.{ .input = .{ 9, 0 } ++ "multi", .nb = 0 },
.{ .input = .{ 9, 0, 0, 0 } ++ "multi", .nb = 0 },
.{ .input = "part", .nb = 1 },
// multipart & combined
.{ .input = .{ 9, 0 } ++ "multi", .nb = 0 },
.{ .input = "part" ++ .{ 2, 0 } ++ "ok", .nb = 2 },
.{ .input = .{ 9, 0, 0, 0 } ++ "multi", .nb = 0 },
.{ .input = "part" ++ .{ 2, 0, 0, 0 } ++ "ok", .nb = 2 },
// multipart & combined with other multipart
.{ .input = .{ 9, 0 } ++ "multi", .nb = 0 },
.{ .input = "part" ++ .{ 8, 0 } ++ "co", .nb = 1 },
.{ .input = .{ 9, 0, 0, 0 } ++ "multi", .nb = 0 },
.{ .input = "part" ++ .{ 8, 0, 0, 0 } ++ "co", .nb = 1 },
.{ .input = "mbined", .nb = 1 },
// several multipart
.{ .input = .{ 23, 0 } ++ "multi", .nb = 0 },
.{ .input = .{ 23, 0, 0, 0 } ++ "multi", .nb = 0 },
.{ .input = "several", .nb = 0 },
.{ .input = "complex", .nb = 0 },
.{ .input = "part", .nb = 1 },
// combined & multipart
.{ .input = .{ 2, 0 } ++ "ok" ++ .{ 9, 0 } ++ "multi", .nb = 1 },
.{ .input = .{ 2, 0, 0, 0 } ++ "ok" ++ .{ 9, 0, 0, 0 } ++ "multi", .nb = 1 },
.{ .input = "part", .nb = 1 },
};