On Linux, read() on a message queue descriptor returns the message
queue statistics, not the actual message queue data. We need to use
mq_receive() to drain the queues instead.
Fixes a problem where a POSIX message queue socket unit with messages
in the queue at shutdown time could result in a hang on reboot/shutdown.
Passing in the func, file and line information complicates the
interface. On top of that, it prevents forward declaring Hashmap in
strv.h, as we need to pass the macros everywhere that we allocate a
hashmap, which means we have to include the hashmap header everywhere
we have a function that allocates a hashmap instead of just having to
forward declare Hashmap.
Let's drop the file, func and line information from the debug information.
Instead, in the future we can add a description field to hashmaps like we
already have in various other structs to describe the purpose of the hashmap
which should be much more useful than having the file, line and function where
the hashmap was allocated.
abs() requires including the entirety of stdlib.h just for a single
trivial function. Let's introduce the ABS() macro and use it in header
files instead so we can get rid of stdlib.h transitive includes in header
files in a later commit.
Let's move some more implementation logic into functions. We keep
the logic that requires the macro in the macro and move the rest into
functions.
While we're at it, let's also make the parameter declarations of
all the string table macros less clausthrophobic.
run_command()'s working directory is documented as undefined but it
seems to be the current source directory as when the -ftime-trace
clang option is enabled, -.json is written to src/basic/meson.build
every time meson is run.
Let's make sure the command is executed in the build directory so that
any auxiliary files are written there as well.
- Drop effectively unused "terminator" param, imply whitespace
- Make ret param optional
- Return ENODATA if the requested key is not found, rather than
ENOENT
- Turn ENOENT -> ENOSYS if /proc/ is not mounted
- Don't skip whitespaces before ':', nothing needs this handling
anyways
- Remove the special treatment for all "0"s. We don't actually
use this for capabilities given pidref_get_capability() exists
- Switch away from read_full_virtual_file() - files using "field"
scheme under /proc/ seem all to be "seq_file"s (refer to
da65941c3e for details on file types)
These assertions impose an include order between <linux/fs.h> and
"missing_fs.h", specifically <linux/fs.h> can't be included before
"missing_fs.h". This makes automated include refactoring very painful,
so let's get rid of these assertions and instead assume that linux/fs.h
does the right thing.
These glibc headers conflicts with the corresponding linux headers
(<linux/in.h> and <linux/if.h>) and impose an include order (the glibc one
has to be included before any linux header is included). This makes sorting
includes a royal pain so let's define our own versions of these headers using
various linux headers to do all the work and filling in the missing bits
ourselves.
The header requires struct sockaddr declared. So, otherwise, we need to
include sys/socket.h earlier than linux/vm_sockets.h.
Let's make the header includable at any place.
meson's target has a few issues:
- Runs on all source files regardless if they're included in the
build or not
- Doesn't have any dependencies on generated sources which means we
have to do a full build first before we can run clang-tidy
- Doesn't allow us to pass any extra arguments
To work around these, let's define our own clang-tidy target instead
using llvm's run-clang-tidy script. Alongside the clang-tidy target,
let's start keeping track of all generated sources which we make the
clang-tidy target depend on. We also add a new target which will only
generate source files which is useful for setting up the source tree
for running code analysis against it.
This code seems to not be used anywhere at all, so let's drop it.
Follow up for ba8d00e859
Follow up for 85686b37b0
Follow up for aff853f8ea
Follow up for 36dad381a2
ASSERT_PTR() and friends in assert-fundamental.h make use of assert()
and assert_se() which when not building for sd-boot are defined in
assert-util.h. Because assert() from glibc is only overridden in
assert-util.h, the macros in assert-fundamental.h still end up using
the glibc assert.
Let's fix this by moving the required macros and related logic to
assert-fundamental.h.
Tooling such as clang-tidy is bad at dealing with condition
compilation on the build system level instead of at the source file
level. What happens? It still tries to analyze the file and fails
horribly if the required headers aren't available. Let's work around
the issue and make things more consistent at the same time by doing
the necessary HAVE_GCRYPT checks inside of the source files instead
of doing them at the build system level.
We also add some typedefs to allow getting rid of various HAVE_GCRYPT
checks.
