can't keep reading from a pipe #3

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opened 2024-02-01 23:47:14 +01:00 by PlexSheep · 1 comment

PlexSheep commented

2024-02-01 23:47:14 +01:00

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plex@theseus /tmp % hedu foofo -c
──────────────────────────────────── foofo ─────────────────────────────────────
DATA IDX │ DATA AS HEX                                      │ DATA AS CHAR
────────────────────────────────────────────────────────────────────────────────
00000000 │ 68 65 6C 6C 6F 20 77 6F  72 6C 64 68 65 6C 6C 6F │ |hello␣worldhello|
00000006 │ 20 77 6F 72 6C 64                                │ |␣world|
────────────────────────────────────────────────────────────────────────────────
00000016 │ read total:              22 B     (22 B)         │
plex@theseus /tmp %

trying to read a fifo

In [19]: f = open("foofo", "w")

In [20]: while True:
    ...:     f.write("loop-")
    ...:     time.sleep(1)
    ...:     f.flush()
    ...: 
---------------------------------------------------------------------------
BrokenPipeError                           Traceback (most recent call last)
Cell In[20], line 4
      2 f.write("loop-")
      3 time.sleep(1)
----> 4 f.flush()

BrokenPipeError: [Errno 32] Broken pipe

but hedu quickly stops reading from it, resulting in a broken pipe for the writer process

``` plex@theseus /tmp % hedu foofo -c ──────────────────────────────────── foofo ───────────────────────────────────── DATA IDX │ DATA AS HEX │ DATA AS CHAR ──────────────────────────────────────────────────────────────────────────────── 00000000 │ 68 65 6C 6C 6F 20 77 6F 72 6C 64 68 65 6C 6C 6F │ |hello␣worldhello| 00000006 │ 20 77 6F 72 6C 64 │ |␣world| ──────────────────────────────────────────────────────────────────────────────── 00000016 │ read total: 22 B (22 B) │ plex@theseus /tmp % ``` trying to read a fifo ``` In [19]: f = open("foofo", "w") In [20]: while True: ...: f.write("loop-") ...: time.sleep(1) ...: f.flush() ...: --------------------------------------------------------------------------- BrokenPipeError Traceback (most recent call last) Cell In[20], line 4 2 f.write("loop-") 3 time.sleep(1) ----> 4 f.flush() BrokenPipeError: [Errno 32] Broken pipe ``` but hedu quickly stops reading from it, resulting in a broken pipe for the writer process