| // Copyright 2024 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| //go:build unix |
| |
| package ninja |
| |
| import ( |
| "context" |
| "fmt" |
| |
| "golang.org/x/sys/unix" |
| |
| "infra/build/siso/build" |
| "infra/build/siso/o11y/clog" |
| "infra/build/siso/ui" |
| ) |
| |
| func (c *ninjaCmdRun) checkResourceLimits(ctx context.Context) { |
| var lim unix.Rlimit |
| err := unix.Getrlimit(unix.RLIMIT_NOFILE, &lim) |
| if err != nil { |
| clog.Warningf(ctx, "failed to get rlimit: %v", err) |
| return |
| } |
| limits := build.DefaultLimits(ctx) |
| nfile := uint64(limits.Local) * 8 // 8 fds per proc? |
| switch { |
| case c.offline: |
| case c.remoteJobs > 0: |
| // reproxy grpc client+server, scandeps server client+server |
| nfile += uint64(c.remoteJobs) * 4 |
| default: |
| nfile += uint64(limits.Remote) * 4 |
| } |
| clog.Infof(ctx, "rlimit.nofile=%d,%d required=%d?", lim.Cur, lim.Max, nfile) |
| if lim.Cur < nfile { |
| ui.Default.PrintLines(ui.SGR(ui.Yellow, fmt.Sprintf("WARNING: too low file limit=%d. would fail with too many open files\n", lim.Cur))) |
| } |
| } |
