Daniel Samson
1d7850239d
P2 of docs/establishment-planes-plan.md. usb-storage serves nameless — one process per stick cannot share an exclusive bind, and a second stick used to die silently on -EBUSY before ever helloing. Its one hello now moves both directions at once: the block-serving endpoint up, its controller channel down. fat finds its volume through the manager — a new `.consumer` role asks for the channel of the driver BOUND TO a device (distinct from the device's reporter), found by enumerating the tree for the mass-storage identity. fat stays single-volume; the boot-volume-by-content choice is M21. The conversion immediately caught a live truncation of exactly the audit's shape: ChildEntry grew to 32 bytes, one enumerate reply holds ~7, and a real tree carries a dozen ACPI nodes before the first USB child — the storage entry silently never fit (the protocol comment already said "paging joins the protocol if a tree ever outgrows one packet"). enumerate is now paged: Header.target is the start cursor, a short page is the end; device-list's page-0 read is unchanged. Grant rows move with the code: the block bind and fat's block open die, fat gains open device-manager. Gate: 18 cases green including the registry trio, device-list, and both IOMMU storage variants.
36 lines
1.4 KiB
Zig
36 lines
1.4 KiB
Zig
//! The fat service as a binary package (docs/build-packages-plan.md):
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//! this file names the binary and EXACTLY the modules its source imports —
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//! build-support resolves each name from the domains this zon declares.
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const std = @import("std");
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const build_support = @import("build-support");
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pub fn build(b: *std.Build) void {
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const exe = build_support.userBinary(b, .{
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.name = "fat",
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.root_source_file = b.path("fat.zig"),
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.imports = &.{
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"block", "channel", "device-manager-protocol", "driver",
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"envelope", "file-system", "ipc", "logging",
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"memory", "process", "service", "time",
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"vfs-protocol",
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},
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});
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b.installArtifact(exe);
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// Standalone `zig build test`; the root aggregate depends on this step.
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const test_step = b.step("test", "Run the fat unit tests");
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for ([_][]const u8{
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"on-disk.zig", // FAT on-disk struct sizes + type detection
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"engine.zig", // FAT read/write over a RAM-backed image
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}) |test_root| {
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const unit_tests = b.addTest(.{
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.root_module = b.createModule(.{
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.root_source_file = b.path(test_root),
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.target = b.resolveTargetQuery(.{}),
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}),
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});
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test_step.dependOn(&b.addRunArtifact(unit_tests).step);
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}
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}
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