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Reduce Host emulator CPU load #2472

Merged
merged 12 commits into from
Jan 26, 2022
Merged

Reduce Host emulator CPU load #2472

merged 12 commits into from
Jan 26, 2022

Commits on Jan 24, 2022

  1. Refactor LWIP library 

    Simplify build by using cmake for lwip only, sming glue built as regular sming library
Pull out common linux/Windows code
Service using event timer rather than polled timer
Remove LWIP_SERVICE_INTERVAL and adjust interval dynamically
    @mikee47
    mikee47 committed Jan 24, 2022
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  2. Fetch & patch npcap as pre-requisite 

    Code required by both CMake and sming library builds
    @mikee47
    mikee47 committed Jan 24, 2022
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  3. Fix CSemaphore::timedwait() 

    Time is absolute so must base on system clock.
Because this wasn't done will always succeed.

Change parameter to microseconds.
    @mikee47
    mikee47 committed Jan 24, 2022
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  4. Timer/Task anonymous namespace

    @mikee47
    mikee47 committed Jan 24, 2022
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  5. Wait efficiently

    @mikee47
    mikee47 committed Jan 24, 2022
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  6. Enforce coding style in hostlib

    @mikee47
    mikee47 committed Jan 24, 2022
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Commits on Jan 25, 2022

  1. Use clock_gettime in timedwait 

    Time structure same as sem_timedwait
Consistent with example code
    @mikee47
    mikee47 committed Jan 25, 2022
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  2. Add cpulimit option 

    Investigating cause of Windows deadlock.
May have other uses.
    @mikee47
    mikee47 committed Jan 25, 2022
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  3. Use 'lwip init complete' registration from Network library

    @mikee47
    mikee47 committed Jan 25, 2022
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  4. Move host_init_bootloader declaration into header

    @mikee47
    mikee47 committed Jan 25, 2022
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  5. Use native Windows sempahore to avoid deadlock 

    Replace global semaphore with `host_thread_wait` and `host_thread_kick`
    @mikee47
    mikee47 committed Jan 25, 2022
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  6. Fix lwip patch

    @mikee47
    mikee47 committed Jan 25, 2022
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