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Improve documentation for zeek_init event scheduling pitfalls

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Jon Siwek 2020-10-12 17:43:15 -07:00
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3.3.0-dev.390 | 2020-10-12 17:43:15 -0700
* Improve documentation for zeek_init event scheduling pitfalls (Jon Siwek, Corelight)
3.3.0-dev.388 | 2020-10-12 17:02:20 -0700
* Add CaptureLoss::Too_Little_Traffic notice (Vlad Grigorescu)

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3.3.0-dev.388
3.3.0-dev.390

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Subproject commit ddec4e675013eff12746064fa4b6b723e86b5804
Subproject commit 4f37431a116bd8951c5a63bb4d1e3ffb065152f4

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src/event.bif
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##
## When a ``zeek_init`` handler executes, Zeek has not yet seen any input
## packets and therefore :zeek:id:`network_time` is not initialized yet. An
## artifact of that is that any timer installed in a ``zeek_init`` handler
## will fire immediately with the first packet. The standard way to work
## around that is to ignore the first time the timer fires and immediately
## reschedule.
## artifact of that is that any timer installed in a ``zeek_init`` handler,
## like with :zeek:keyword:`schedule`, will fire immediately with the first
## packet. The standard way to work around that is to ignore the first time
## the timer fires and immediately reschedule.
##
event zeek_init%(%);