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[GH-ISSUE #88] CocoaSplit crashes when I write displayed text file #79

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opened 2026-05-05 15:05:18 -06:00 by gitea-mirror · 3 comments

gitea-mirror commented

2026-05-05 15:05:18 -06:00

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Originally created by @gobzer on GitHub (Apr 8, 2020).
Original GitHub issue: https://github.com/zakk4223/CocoaSplit/issues/88

Hi,
CocoaSplit 2.1.12 crashes when displaying contents of a file being rewritten by an external process.
To reproduce:

make file sample.txt write some text to it.
Open CocoaSplit and add text file source. Source the text from sample.txt
Run this script:

python2

cnt = 0
while True:
    cnt = cnt + 1
    f = open("sample.txt", "w")
    f.write(str(cnt))
    f.close()

CocoaSplit 2.1.12 should crash.

Rewriting text files by an external process is useful either for chat or donations.
I tried to do the same on OBS, but it doesn't crash.

Attached crash report and console messages.
crash_write_to_file.txt
console_write_to_file.txt

Originally created by @gobzer on GitHub (Apr 8, 2020). Original GitHub issue: https://github.com/zakk4223/CocoaSplit/issues/88 Hi, CocoaSplit 2.1.12 crashes when displaying contents of a file being rewritten by an external process. To reproduce: 1. make file sample.txt write some text to it. 2. Open CocoaSplit and add text file source. Source the text from sample.txt 3. Run this script: **python2** ``` cnt = 0 while True: cnt = cnt + 1 f = open("sample.txt", "w") f.write(str(cnt)) f.close() ``` CocoaSplit 2.1.12 should crash. Rewriting text files by an external process is useful either for chat or donations. I tried to do the same on OBS, but it doesn't crash. Attached crash report and console messages. [crash_write_to_file.txt](https://github.com/zakk4223/CocoaSplit/files/4449878/crash_write_to_file.txt) [console_write_to_file.txt](https://github.com/zakk4223/CocoaSplit/files/4450120/console_write_to_file.txt)

gitea-mirror commented

2026-05-05 15:05:20 -06:00

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@zakk4223 commented on GitHub (Apr 9, 2020):

Fixed in commit 16564b3780

I'll have a new release out in a day or two

@zakk4223 commented on GitHub (Apr 9, 2020): Fixed in commit 16564b3780a1767c826ae087a093085bc9f79dae I'll have a new release out in a day or two

gitea-mirror commented

2026-05-05 15:05:20 -06:00

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@gobzer commented on GitHub (Apr 13, 2020):

Yes. It's not crashing now. But sometimes it skips states.
For example. I count to infinity with a timed interval. On live view the the source sometimes becomes blank. Skips number or two:

import time
cnt = 0
while True:
    time.sleep(1)
    cnt = cnt + 1
    f = open("sample.txt", "w")
    f.write(str(cnt))
    f.close()

@gobzer commented on GitHub (Apr 13, 2020): Yes. It's not crashing now. But sometimes it skips states. For example. I count to infinity with a timed interval. On live view the the source sometimes becomes blank. Skips number or two: ``` import time cnt = 0 while True: time.sleep(1) cnt = cnt + 1 f = open("sample.txt", "w") f.write(str(cnt)) f.close() ```

gitea-mirror commented

2026-05-05 15:05:21 -06:00

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@zakk4223 commented on GitHub (Apr 17, 2020):

(Hopefully) fixed in commit db39e676f3

File change events were causing double updates of the CATextLayer, one of which was a nil string. Sometimes the layout render would hit during the blank phase. Removed the nil update part and it seems better behaved now

@zakk4223 commented on GitHub (Apr 17, 2020): (Hopefully) fixed in commit db39e676f3897aa01fcc8dd8b080d0913b7450e7 File change events were causing double updates of the CATextLayer, one of which was a nil string. Sometimes the layout render would hit during the blank phase. Removed the nil update part and it seems better behaved now

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Reference: github-starred/CocoaSplit#79

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