archives/zig
1
0
Fork 0
mirror of https://codeberg.org/ziglang/zig.git synced 2026-03-08 02:24:33 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

std.heap.SmpAllocator: fix getCpuCount logic

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

2
lib/std/heap/SmpAllocator.zig
View file

@ -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;
}