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Caught by userspace UBSAN. :^)
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This is no longer used by any of our IPC pairs.
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Previously <AK/Function.h> also included <AK/OwnPtr.h>. That's about to
change though. This patch fixes a few build problems that will occur
when that change happens.
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POSIX does not mandate this, therefore let's not do it.
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This enables calling auto-generated IPC methods in a way that doesn't
crash the client if the peer disconnects.
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This updates all existing code to use the auto-generated client
methods instead of post_message/send_sync.
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This enables support for automatically generating client methods.
With this added the user gets code completion support for all
IPC methods which are available on a connection object.
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This patch removes the IPC endpoint numbers that needed to be specified
in the IPC files. Since the string hash is a (hopefully) collision free
number that depends on the name of the endpoint, we now use that
instead. :^)
Additionally, endpoint magic is now treated as a u32, because endpoint
numbers were never negative anyway.
For cases where the endpoint number does have to be hardcoded (a current
case is LookupServer because the endpoint number must be known in LibC),
the syntax has been made more explicit to avoid confusing those
unfamiliar. To hardcode the endpoint magic, the following syntax is now
used:
endpoint EndpointName [magic=1234]
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SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
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This was a helper that would call a syscall repeatedly until it either
succeeded or failed with a non-EINTR error.
It was only used in two places, so I don't think we need this helper.
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Since we VERIFY that we received a response, the response pointer is
always non-null.
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Since LibCore cannot depend on LibIPC, the coders are defined in LibIPC
just like they are for Core::AnonymousBuffer.
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(...and ASSERT_NOT_REACHED => VERIFY_NOT_REACHED)
Since all of these checks are done in release builds as well,
let's rename them to VERIFY to prevent confusion, as everyone is
used to assertions being compiled out in release.
We can introduce a new ASSERT macro that is specifically for debug
checks, but I'm doing this wholesale conversion first since we've
accumulated thousands of these already, and it's not immediately
obvious which ones are suitable for ASSERT.
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Instead of asserting that the peer responds successfully, this API
allows for the peer to die/crash/whatever happens on the other side
while handling a synchronous request.
This will be useful when using process separation to parse untrusted
data from the web.
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@bugaevc pointed out that we shouldn't be setting this flag in
userspace, and he's right of course.
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I noticed that programs running in the terminal had an open file
descriptor for the system theme buffer, inherited from the Terminal.
Let's be nice and always mark incoming fds with FD_CLOEXEC.
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The client ID is not useful to normal clients anymore, so stop telling
everyone what their ID is.
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The PIDs were used for sharing shbufs between processes, but now that
we have migrated to file descriptor passing, we no longer need to know
the PID of the other side.
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This will be used to migrate remaining clients off of shbufs.
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These changes are arbitrarily divided into multiple commits to make it
easier to find potentially introduced bugs with git bisect.
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If you don't need a file descriptor after sending it to someone over
IPC, construct it with IPC::File(fd, IPC::File::CloseAfterSending)
and LibIPC will take care of it for you. :^)
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When receiving a file descriptor over IPC, the receiver must now call
take_fd() on the IPC::File to take over the descriptor. Otherwise,
IPC::File will close the file on destruction.
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