Wireshark-dev: Re: [Wireshark-dev] Feature: option to open windows as tabs
From: Paul Offord <Paul.Offord@xxxxxxxxxxxx>
Date: Sun, 6 May 2018 07:37:17 +0000
> I *think* Windows DLLs may also function as shared libraries.

They do.  One instance in RAM mapped into the virtual address space of any process referencing the DLL.

-----Original Message-----
From: Wireshark-dev <wireshark-dev-bounces@xxxxxxxxxxxxx> On Behalf Of Guy Harris
Sent: 05 May 2018 19:25
To: Developer support list for Wireshark <wireshark-dev@xxxxxxxxxxxxx>
Subject: Re: [Wireshark-dev] Feature: option to open windows as tabs

On May 5, 2018, at 10:04 AM, Peter Wu <peter@xxxxxxxxxxxxx> wrote:

> Memory usage will probably suck due to exact copies of the process,

On most if not all UN*Xes, the executable image's code and read-only data, and libwireshark's/libwiretap's/libwsutil's code and read-only data, should be shared between all of the processes.

You won't, however, share the results of reading in configuration files, e.g. the new fields added by reading in the RADIUS and DIAMETER dictionaries...

...unless they're read in by the UI process, and handed to the dissector processes as (read-only) shared memory.

I *think* Windows DLLs may also function as shared libraries.
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