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.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> |
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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]