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scheduler: support crashing and restarting tasks

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cozis
2026-06-20 14:14:19 +02:00
parent 5163adc087
commit d6e098cf40
5 changed files with 135 additions and 29 deletions
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src/trace.zig
+14 -14
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@@ -5,7 +5,6 @@ const Scheduler = @import("scheduler.zig");
const TaskID = Scheduler.TaskID;
pub const Trace = struct {
pub const TaskState = enum {
ready,
running,
@@ -14,16 +13,18 @@ pub const Trace = struct {
waiting_task,
failed,
returned,
crashed,
pub fn toString(self: TaskState) []const u8 {
return switch (self) {
.ready => "ready",
.running => "running",
.sleeping => "sleeping",
.ready => "ready",
.running => "running",
.sleeping => "sleeping",
.waiting_futex => "waiting-futex",
.waiting_task => "waiting-task",
.failed => "failed",
.returned => "returned",
.waiting_task => "waiting-task",
.failed => "failed",
.returned => "returned",
.crashed => "crashed",
};
}
};
@@ -99,7 +100,7 @@ pub const Trace = struct {
if (self.file == null) return;
const global_time = self.scheduler.current_time;
const local_time = node.local_time;
const local_time = node.local_time;
var line_buffer: [256]u8 = undefined;
const line = std.fmt.bufPrint(&line_buffer,
@@ -135,7 +136,6 @@ pub const Trace = struct {
\\
, .{ to, to, from, to }) catch return;
self.write(line);
}
pub fn beginIO(self: *Trace, disk: bool, source: std.builtin.SourceLocation) Pending {
@@ -156,7 +156,7 @@ pub const Trace = struct {
const task = self.task.?;
const global_time = self.scheduler.current_time;
const local_time = node.local_time;
const local_time = node.local_time;
const trace_id = self.next_trace_id;
self.next_trace_id += 1;
@@ -200,14 +200,14 @@ pub const Trace = struct {
var line_buffer: [256]u8 = undefined;
const prefix = std.fmt.bufPrint(&line_buffer,
\\{{"time":{},"global_time":{},"event":"io_complete","id":{},"node":{},"task":{},"op":
, .{ local_time, global_time, pending_trace.trace_id, pending_trace.node_id, pending_trace.task_id }) catch return;
, .{ local_time, global_time, pending_trace.trace_id, pending_trace.node_id, pending_trace.task_id }) catch return;
self.write(prefix);
self.writeJsonString(pending_trace.op);
self.write(",\"resource\":");
self.writeJsonString(if (pending_trace.disk) "disk" else "io");
const suffix = std.fmt.bufPrint(&line_buffer,
\\,"start":{},"end":{},"result":
, .{ pending_trace.local_time, local_time }) catch return;
, .{ pending_trace.local_time, local_time }) catch return;
self.write(suffix);
var result_buffer: [96]u8 = undefined;
self.writeJsonString(resultText(&result_buffer, result));
@@ -217,12 +217,12 @@ pub const Trace = struct {
var disk_line_buffer: [256]u8 = undefined;
const disk_prefix = std.fmt.bufPrint(&disk_line_buffer,
\\{{"time":{},"global_time":{},"event":"disk","node":{},"op":
, .{ pending_trace.local_time, global_time, pending_trace.node_id }) catch return;
, .{ pending_trace.local_time, global_time, pending_trace.node_id }) catch return;
self.write(disk_prefix);
self.writeJsonString(pending_trace.op);
const middle = std.fmt.bufPrint(&disk_line_buffer,
\\,"start":{},"end":{},"detail":
, .{ pending_trace.local_time, local_time }) catch return;
, .{ pending_trace.local_time, local_time }) catch return;
self.write(middle);
self.writeJsonString(resultText(&result_buffer, result));
self.write("}\n");