#7 gawk-select: outputfd and nonblock tests fail on macOS

[Ryan Carsten Schmidt]

On macOS 10.15.7 with Xcode 12.4, gawk-select 1.1.2 encounters these errors when running the tests:

======== Starting select tests ========
kill
inputfd
outputfd
./outputfd.ok _outputfd differ: char 397, line 13
make[1]: [outputfd] Error 1 (ignored)
nonblock
./nonblock.ok _nonblock differ: char 187, line 13
make[1]: [nonblock] Error 1 (ignored)
select
signal
timeout_parse
======== Done with select tests ========
2 TESTS FAILED
make[2]: *** [pass-fail] Error 1
for i in _* ; \
    do  \
        if [ "$i" != "_*" ]; then \
        echo ============== $i ============= ; \
        if [ -r ${i#_}.ok ]; then \
        diff -c ${i#_}.ok $i ; \
        else \
        diff -c ./${i#_}.ok  $i ; \
        fi ; \
        fi ; \
    done | more
============== _nonblock =============
*** nonblock.ok 2015-03-28 09:48:41.000000000 -0500
--- _nonblock   2022-01-13 13:46:11.000000000 -0600
***************
*** 10,14 ****
--- 10,15 ----
  1 would block; pausing...
  2 would block; pausing...
  3 would block; pausing...

+ 4 would block; pausing...
  goodbye
  0
============== _outputfd =============
*** outputfd.ok 2017-12-18 08:02:18.000000000 -0600
--- _outputfd   2022-01-13 13:46:06.000000000 -0600
***************
*** 10,14 ****
  -1
  see how output_fd actually launches the command
  rc 1
! 0
  0
--- 10,14 ----
  -1
  see how output_fd actually launches the command
  rc 1
!        0
  0
make[1]: *** [check] Error 1

[Andrew J. Schorr]

Sorry for the long delay. The first "nonblock" error looks like a weird timing issue. Is the system extremely sluggish?

The second issue seems to be caused by unexpected output formatting from "wc -l".

In both cases, I think it's not important, and the extension is in fact working properly.

Is this still a concern? If so, we can try to fix these nits, but it's probably not important.

Regards,
Andy

[Andrew J. Schorr]

I got access to a MacOS system on the GCC compile farm. I am unable to depulicate the "nonblock" error. As best I can tell, that must have been caused by an extremely sluggish system. Are you able to replicate the problem?

I patched the "outputfd" test case to use "cksum" instead of "wc -l", since "cksum" seems to have a more consistent output format. Please try gawk-select-1.1.4.

Regards,
Andy

[Ryan Carsten Schmidt]

Whether test failures are a concern is up to you! I just wanted to make sure you were aware of them.

I can't recall whether the system I was using when I reported this initially was sluggish.

Today I'm on a different Mac running macOS 12.7.2 and with gawk-select 1.1.4 I get some different test failures:

======== Starting select tests ========
kill
inputfd
outputfd
nonblock
Files ./nonblock.ok and _nonblock differ
make[1]: [nonblock] Error 1 (ignored)
select
Files ./select.ok and _select differ
make[1]: [select] Error 1 (ignored)
signal
Files ./signal.ok and _signal differ
make[1]: [signal] Error 1 (ignored)
timeout_parse
Files ./timeout_parse.ok and _timeout_parse differ
make[1]: [timeout_parse] Error 1 (ignored)
======== Done with select tests ========
4 TESTS FAILED
make[2]: *** [pass-fail] Error 1
for i in _* ; \
    do  \
        if [ "$i" != "_*" ]; then \
        echo ============== $i ============= ; \
        if [ -r ${i#_}.ok ]; then \
        diff -c ${i#_}.ok $i ; \
        else \
        diff -c ./${i#_}.ok  $i ; \
        fi ; \
        fi ; \
    done
============== _nonblock =============
*** nonblock.ok 2023-11-14 10:01:30.000000000 -0600
--- _nonblock   2024-01-26 10:34:48.000000000 -0600
***************
*** 5,14 ****
  1

  With non-blocking I/O
  set_non_blocking 0
  hello
! 1 would block; pausing...
! 2 would block; pausing...
! 3 would block; pausing...
! goodbye
! 0
--- 5,12 ----
  1

  With non-blocking I/O

+ gawk: ./nonblock.awk:22: warning: set_non_blocking: could not install PROCINFO array; unable to configure PROCINFO RETRY for `echo hello; sleep 1; echo goodbye'
  set_non_blocking 0
  hello
! -1 1 1
! 1
============== _select =============
*** select.ok   2023-11-14 10:01:30.000000000 -0600
--- _select 2024-01-26 10:34:51.000000000 -0600
***************
*** 1,7 ****
  0 [echo A:msg1; sleep 2; echo A:msg2; echo A:msg3; sleep 2; echo A:msg4] -> A:msg1
! 1 [sleep 1; echo B:msg1; echo B:msg2; sleep 2; echo B:msg3] -> B:msg1
! 1 [sleep 1; echo B:msg1; echo B:msg2; sleep 2; echo B:msg3] -> B:msg2
! 2 [echo A:msg1; sleep 2; echo A:msg2; echo A:msg3; sleep 2; echo A:msg4] -> A:msg2
! 2 [echo A:msg1; sleep 2; echo A:msg2; echo A:msg3; sleep 2; echo A:msg4] -> A:msg3
! 3 [sleep 1; echo B:msg1; echo B:msg2; sleep 2; echo B:msg3] -> B:msg3
! 4 [echo A:msg1; sleep 2; echo A:msg2; echo A:msg3; sleep 2; echo A:msg4] -> A:msg4
--- 1,10 ----
+ gawk: ./select.awk:8: warning: set_non_blocking: could not install PROCINFO array; unable to configure PROCINFO RETRY for `echo A:msg1; sleep 2; echo A:msg2; echo A:msg3; sleep 2; echo A:msg4'
+ gawk: ./select.awk:8: warning: set_non_blocking: could not install PROCINFO array; unable to configure PROCINFO RETRY for `sleep 1; echo B:msg1; echo B:msg2; sleep 2; echo B:msg3'
  0 [echo A:msg1; sleep 2; echo A:msg2; echo A:msg3; sleep 2; echo A:msg4] -> A:msg1
! Error: getline(echo A:msg1; sleep 2; echo A:msg2; echo A:msg3; sleep 2; echo A:msg4) returned -1, errno = Resource temporarily unavailable
! Error: close(echo A:msg1; sleep 2; echo A:msg2; echo A:msg3; sleep 2; echo A:msg4) failed with rc 269, ERRNO 
! 2 [sleep 1; echo B:msg1; echo B:msg2; sleep 2; echo B:msg3] -> B:msg1
! 2 [sleep 1; echo B:msg1; echo B:msg2; sleep 2; echo B:msg3] -> B:msg2
! Error: getline(sleep 1; echo B:msg1; echo B:msg2; sleep 2; echo B:msg3) returned -1, errno = Resource temporarily unavailable
! Error: close(sleep 1; echo B:msg1; echo B:msg2; sleep 2; echo B:msg3) failed with rc 269, ERRNO 
! EXIT CODE: 1
============== _signal =============
*** signal.ok   2023-11-14 10:01:30.000000000 -0600
--- _signal 2024-01-26 10:34:52.000000000 -0600
***************
*** 1,8 ****
  previous sighup disposition: default
  0 [echo hello; sleep 1; echo midway; sleep 2; echo goodbye] -> hello
! 0 kill 0
! 0 Caught signal 1 (HUP)
! 1 [echo hello; sleep 1; echo midway; sleep 2; echo goodbye] -> midway
! 1 kill 0
! 1 Caught signal 1 (HUP)
! 3 [echo hello; sleep 1; echo midway; sleep 2; echo goodbye] -> goodbye
--- 1,6 ----
  previous sighup disposition: default
+ gawk: ./signal.awk:11: warning: set_non_blocking: could not install PROCINFO array; unable to configure PROCINFO RETRY for `echo hello; sleep 1; echo midway; sleep 2; echo goodbye'
  0 [echo hello; sleep 1; echo midway; sleep 2; echo goodbye] -> hello
! Error: getline(echo hello; sleep 1; echo midway; sleep 2; echo goodbye) returned -1, errno = Resource temporarily unavailable
! Error: close(echo hello; sleep 1; echo midway; sleep 2; echo goodbye) failed with rc 269, ERRNO 
! EXIT CODE: 1
============== _timeout_parse =============
*** timeout_parse.ok    2023-11-14 10:01:30.000000000 -0600
--- _timeout_parse  2024-01-26 10:34:56.000000000 -0600
***************
*** 1,16 ****

    Testing timeout 2 type number
  0 [echo before sleep; sleep 1; echo after sleep #] -> before sleep
! 1 [echo before sleep; sleep 1; echo after sleep #] -> after sleep

    Testing timeout 2 type strnum
  0 [echo before sleep; sleep 1; echo after sleep #] -> before sleep
! 1 [echo before sleep; sleep 1; echo after sleep #] -> after sleep

    Testing timeout 2 type string
  0 [echo before sleep; sleep 1; echo after sleep #] -> before sleep
! 1 [echo before sleep; sleep 1; echo after sleep #] -> after sleep

    Testing timeout apple type string
  0 [echo before sleep; sleep 1; echo after sleep #] -> before sleep
! 1 [echo before sleep; sleep 1; echo after sleep #] -> after sleep
--- 1,25 ----

    Testing timeout 2 type number

+ gawk: ./timeout_parse.awk:6: warning: set_non_blocking: could not install PROCINFO array; unable to configure PROCINFO RETRY for `echo before sleep; sleep 1; echo after sleep #'
  0 [echo before sleep; sleep 1; echo after sleep #] -> before sleep
! Error: getline(echo before sleep; sleep 1; echo after sleep #) returned -1, errno = Resource temporarily unavailable
! Error: close(echo before sleep; sleep 1; echo after sleep #) failed with rc 269, ERRNO 

    Testing timeout 2 type strnum

+ gawk: ./timeout_parse.awk:6: warning: set_non_blocking: could not install PROCINFO array; unable to configure PROCINFO RETRY for `echo before sleep; sleep 1; echo after sleep #'
  0 [echo before sleep; sleep 1; echo after sleep #] -> before sleep
! Error: getline(echo before sleep; sleep 1; echo after sleep #) returned -1, errno = Resource temporarily unavailable
! Error: close(echo before sleep; sleep 1; echo after sleep #) failed with rc 269, ERRNO 

    Testing timeout 2 type string

+ gawk: ./timeout_parse.awk:6: warning: set_non_blocking: could not install PROCINFO array; unable to configure PROCINFO RETRY for `echo before sleep; sleep 1; echo after sleep #'
  0 [echo before sleep; sleep 1; echo after sleep #] -> before sleep
! Error: getline(echo before sleep; sleep 1; echo after sleep #) returned -1, errno = Resource temporarily unavailable
! Error: close(echo before sleep; sleep 1; echo after sleep #) failed with rc 269, ERRNO 

    Testing timeout apple type string

+ gawk: ./timeout_parse.awk:6: warning: set_non_blocking: could not install PROCINFO array; unable to configure PROCINFO RETRY for `echo before sleep; sleep 1; echo after sleep #'
  0 [echo before sleep; sleep 1; echo after sleep #] -> before sleep
! Error: getline(echo before sleep; sleep 1; echo after sleep #) returned -1, errno = Resource temporarily unavailable
! Error: close(echo before sleep; sleep 1; echo after sleep #) failed with rc 269, ERRNO 
! EXIT CODE: 1
make[2]: *** [diffout] Error 1
make[1]: *** [check] Error 1