Comments (12)
Looks like this is a regression.
$ hexyl
┌────────┬─────────────────────────┬─────────────────────────┬────────┬────────┐
^C
$ hexyl --version
hexyl 0.3.0
$ brew upgrade hexyl
==> Upgrading 1 outdated package:
hexyl 0.3.0 -> 0.6.0
==> Upgrading hexyl
==> Downloading https://homebrew.bintray.com/bottles/hexyl-0.6.0.mojave.bottle.1.tar.gz
==> Downloading from https://akamai.bintray.com/99/99a3133f73538f29f0dc2a603f122b2c2165fdd53de0f2141fc0ebab086c22f2?__gda__=exp=1581631705~hmac=3d6116586601720ea23e57ef75b254d0f67b4fe494e7be2d3aeb175112ad9eb7&response-content-disposition=atta
######################################################################## 100.0%
==> Pouring hexyl-0.6.0.mojave.bottle.1.tar.gz
🍺 /usr/local/Cellar/hexyl/0.6.0: 5 files, 704.3KB
Removing: /usr/local/Cellar/hexyl/0.3.0... (5 files, 1.2MB)
==> Checking for dependents of upgraded formulae...
==> No dependents found!
$ hexyl
^C^C^C^C
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This affects me on Linux as well. Kernel 5.5.3 (Arch Linux), Hexyl 0.6.0.
from hexyl.
Looks like it was broken here 1903047. The handler gets called but the cancelled
never gets loaded if read
doesn't return (AFAICT).
from hexyl.
Not very good at reading Rust, but as far as I understand the logic flow that seems like a correct analysis.
from hexyl.
@twe4ked Yes, that is correct. The handler doesn't work because we are in the blocking read
call. This can easily be verified by pressing Ctrl-C
and then Enter
.
Simply reverting that commit would be an easy fix for this issue, but make the #35 situation worse. However, this bug here is much more relevant. #35 is a "cosmetic" thing only.
from hexyl.
libc::read
will return EINTR
when a signal handler was called. The read method for stdio and files in libstd loops until it doesn't return EINTR
anymore. Try using the raw libc::read
function.
from hexyl.
@bjorn3: Thank you!
It looks like setting SA_RESTART
in sigaction(3)
would also work?
I'm currently looking into the signal_hook
crate...
from hexyl.
No, I guess that wouldn't work. Unsetting SA_RESTART
would work if it wouldn't be caught explicitly.
from hexyl.
Any new status on this issue? I can perform testing on MacOS if that is needed.
from hexyl.
I did not find any solution with signal_hook
and I would like to refrain from using unsafe
features (callibg libc::read
directly).
I'm going to remove the signal handler completely, for now. This will fix this issue.
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fixed in v0.7.0
from hexyl.
Cool!
from hexyl.
Related Issues (20)
- Feature Request: Specify length for displaying output HOT 7
- Add hexyl.1 man page to source tree? HOT 19
- Feature Request: Show byte 00~1f and 7f in UnixP form in text area HOT 1
- Hexyl show garbage on LXTerminal HOT 2
- Add option to disable printing 0 bytes as ascii 0. HOT 1
- `--no-characters` causes output artifacts when squeezing lines HOT 5
- Is there a cheat sheet anywhere telling what color correlates to category of byte? HOT 3
- Add support for the NO_COLOR environment variable HOT 4
- Regression: broken pipe error
- Make --panels=auto the new default? HOT 3
- hexyl should not fail if `--panels=auto` is used and output is not a TTY
- Identical lines not squeezed HOT 3
- hexyl -C does the inverse of hexdump -C HOT 1
- Request: publish source tar with generated manpage HOT 3
- Support for different code pages / character tables
- Incorrect output when reading from terminal HOT 2
- Feature request: Ship as a crate HOT 3
- `hexyl /dev/zero` hangs HOT 6
- Display some non-printable characters like `bat --show-all` HOT 5
- Feature request: Comodore prg mode HOT 1
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from hexyl.