Daniel Samson
23bcd77c58
Every user binary and the two device-logic library modules (pci, usb) now
`@import` the concern modules directly instead of aliasing through `runtime`:
runtime.ipc/process/time/service/input/block/display -> @import("<module>")
runtime.device / runtime.device_manager -> @import("driver")
runtime.fs -> @import("file-system")
runtime.Thread -> @import("thread").Thread
runtime.system.{write,writeRecord,klog*} -> logging.*
runtime.system.{sleep,timerOnce,wallClock,clock} -> time.*
runtime.system.{spawn*,kill,exit,yield,processes,...}-> process.*
runtime.system.{mmap,munmap,PROT_*} -> memory.*
runtime.dma.* / runtime.shared_memory.* / runtime.allocator -> memory.*
Each consumer keeps its own alias name (e.g. `const device = @import("driver")`),
so call sites are unchanged and there are no collisions with local `driver`
variables. build.zig now injects the concern modules into every user binary via
`default_imports`; pci/usb module import lists were updated to match.
The `runtime` and `system` shims remain for one more step (root.zig still uses
runtime); they are deleted in C5. Nothing but root.zig imports `runtime` now.
Verified: zig build, zig build test, and 17 QEMU cases (smoke, device-manager,
logger, fat-mount, fat-mutations, usb-storage, usb-hid, display-native,
virtio-gpu, input, thread-spawn, thread-mutex, process-kill, shared-memory,
driver-restart, acpi-ps2, pci-scan).
45 lines
1.7 KiB
Zig
45 lines
1.7 KiB
Zig
//! system/services/shared-memory-server — the receiving half of the shared-memory test (docs/display-v2.md V2).
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//! It registers under `ServiceId.shared_memory_test`; when `shared-memory-client` calls it carrying a
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//! shared-memory capability, it `shared_memory_map`s that capability and checks the client's pattern
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//! is visible through the mapping — proving the two processes share the same physical pages
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//! (not a copy). On success it prints `shared-memory: shared 4096 bytes ok`, the test's marker.
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const ipc = @import("ipc");
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const service = @import("service");
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const memory = @import("memory");
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const logging = @import("logging");
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const pattern_len = 4096;
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/// The pattern the client writes — must match shared-memory-client.zig.
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fn expected(i: usize) u8 {
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return @truncate(i *% 7 +% 3);
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}
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fn onMessage(message: []const u8, reply: []u8, sender: u32, capability: ?ipc.Handle) usize {
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_ = message;
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_ = reply;
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_ = sender;
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const cap = capability orelse {
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_ = logging.write("shared-memory: shared FAILED (no capability)\n");
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return 0;
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};
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const ptr = memory.sharedMap(cap) orelse {
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_ = logging.write("shared-memory: shared FAILED (map)\n");
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return 0;
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};
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var i: usize = 0;
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while (i < pattern_len) : (i += 1) {
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if (ptr[i] != expected(i)) {
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_ = logging.write("shared-memory: shared FAILED (mismatch)\n");
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return 0;
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}
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}
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_ = logging.write("shared-memory: shared 4096 bytes ok\n");
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return 0; // empty reply — the client only needs the round trip to unblock
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}
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pub fn main() void {
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service.run(64, .{ .service = .shared_memory_test, .on_message = onMessage });
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}
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