File

.semgrep.yml @ 11694:d6be4dda1f60

net.server_epoll: Set minimum wait time to 1ms, matching epoll A timeout value less than 0.001 gets turned into zero on the C side, so epoll_wait() returns instantly and essentially busy-loops up to 1ms, e.g. when a timer event ends up scheduled (0, 0.001)ms into the future. Unsure if this has much effect in practice, but it may waste a small amount of CPU time. How much would depend on how often this ends up happening and how fast the CPU gets trough main loop iterations.
author Kim Alvefur <zash@zash.se>
date Thu, 15 Jul 2021 01:38:44 +0200
parent 11289:c6965f3c321c
child 12717:898e99f49d80
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rules:
- id: log-variable-fmtstring
  patterns:
    - pattern: log("...", $A)
    - pattern-not: log("...", "...")
  message: Variable passed as format string to logging
  languages: [lua]
  severity: ERROR
- id: module-log-variable-fmtstring
  patterns:
    - pattern: module:log("...", $A)
    - pattern-not: module:log("...", "...")
  message: Variable passed as format string to logging
  languages: [lua]
  severity: ERROR
- id: module-getopt-string-default
  patterns:
    - pattern: module:get_option_string("...", $A)
    - pattern-not: module:get_option_string("...", "...")
    - pattern-not: module:get_option_string("...", host)
    - pattern-not: module:get_option_string("...", module.host)
  message: Non-string default from :get_option_string
  severity: ERROR
  languages: [lua]