| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package functions |
| 4 | |
| 5 | import "runtime/debug" |
| 6 | |
| 7 | func (m *Manager) runWorker() { |
| 8 | for { |
| 9 | if m.scheduler == nil { |
| 10 | return |
| 11 | } |
| 12 | req, ok := m.scheduler.next() |
| 13 | m.observeSchedulerPending() |
| 14 | if !ok { |
| 15 | return |
| 16 | } |
| 17 | if req == nil || req.fn == nil || req.handler == nil { |
| 18 | continue |
| 19 | } |
| 20 | // Safe to skip: cancel/finalization path calls tryFinalize(), which in turn |
| 21 | // advances per-key lanes via scheduler.complete(). |
| 22 | if req.ctx != nil && req.ctx.Err() != nil { |
| 23 | continue |
| 24 | } |
| 25 | if !m.startInvocation(req.fn.UID) { |
| 26 | continue |
| 27 | } |
| 28 | |
| 29 | panicked := false |
| 30 | func() { |
| 31 | defer func() { |
| 32 | if v := recover(); v != nil { |
| 33 | m.Errorf("function handler panic (uid=%s): %v\n%s", req.fn.UID, v, string(debug.Stack())) |
| 34 | panicked = true |
| 35 | } |
| 36 | }() |
| 37 | req.handler(*req.fn) |
| 38 | }() |
| 39 | |
| 40 | if panicked { |
| 41 | m.respUID(req.fn.UID, 500, "function handler panic") |
| 42 | continue |
| 43 | } |
| 44 | |
| 45 | m.setAwaitingResultState(req.fn.UID, req.fn.Timeout) |
| 46 | } |
| 47 | } |