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std.heap.SmpAllocator: fix getCpuCount logic

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it was always returning max_cpu_count
This commit is contained in:
Andrew Kelley 2025-02-07 01:21:09 -08:00
parent 88e2e60e88
commit 3246150d45
1 changed files with 1 additions and 1 deletions
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2
lib/std/heap/SmpAllocator.zig
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@ -97,7 +97,7 @@ const Thread = struct {
fn getCpuCount() u32 {
const cpu_count = @atomicLoad(u32, &global.cpu_count, .unordered);
if (cpu_count != 0) return cpu_count;
const n: u32 = @intCast(@max(std.Thread.getCpuCount() catch max_thread_count, max_thread_count));
const n: u32 = @min(std.Thread.getCpuCount() catch max_thread_count, max_thread_count);
return if (@cmpxchgStrong(u32, &global.cpu_count, 0, n, .monotonic, .monotonic)) |other| other else n;
}