After two days banging my head with this, now I had a moment of enlightenment: the data remains in limbo, but it does not trigger the GSource because the GSocket/GSource has been created in the child process *after* the data has been already accepted by the kernel, and therefore the “data available” event never gets triggered.
What the child process can do is use g_socket_get_available_bytes() as the first thing right after creating the GSocket, and manually invoke the “data ready” callback.
Of course, writing the data is successful and produces no errors. Theoretically the data should be buffered somewhere by the kernel, as the socket pair is expected to behave like a FIFO pipe. Any ideas?
I would really like to send an initial message over the socketpair which the spawned process would read right away on startup.
1. Create a GMainLoop.
2. Use socketpair(), wrap “server” side descriptor into a GSocket. Write some data.
4. Spawn a new process, passing the “client” side descriptor. This process also creates a GMainLoop and wraps the descriptor into a GSocket.
3. Server runs the main loop.
5. Client create sa GSource for the socket, to get async notifications on “data ready”, and starts its main loop.
The data written by the server process never triggers “data ready”. Where's my data?
Again for those who missed it: the Boston Public Library has a really nifty transcription tool on their site. If you can read cursive, you can help safeguard and digitize the history of slavery (and the abolition of slavery) in the United States. Check it out! https://qz.com/1194254/slavery-in-america-boston-public-library-crowdsourcing-transcriptions-to-preserve-history-of-abolitionists/ #history #libraries #archives #digitalhumanities #dh #transcription #awesome
Today I had a weird personal computing moment: The scanner of a random multifunction printer model just worked after installing the needed driver, no additional configuration needed.
Still not in awe? Right, I should've mention that this was on GNU/Linux, and that the multifunction printer-scanner is wireless.
#debian packaging #rant Show more
That moment when one ends up building Xapian because Debian packages available in a server don't have have the FieldProcessor API enabled at build time, so one can compile #Notmuch with support for regex matches, and one can effectively cover some edge cases in email tagging.
New blog post on hacking on user space networking :) https://tsyesika.se/posts/hacking-on-user-space-networking/
IT'S HAPPENING.Me and my partner found a venue with seats available for #BurnsSupper
Even if not liking bagpipes or folk music, one has to admit that piping a haggis into the table and reciting a poem to it before being dramatically stabbed with a knife is pretty badass.
#scotland Show more
#Edinburgh day trip Show more
Well, in general the comment about being a bit of a tourist trap applies to the whole area around the Royal Mile in the old town. But still: if you visit, walk around and enjoy the architecture!
💻 Programming 🗽💿 Free Software 🎸 Music 🚂 Traveling — 🌍 https://perezdecastro.org
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