Compared to greedy_realloc(), this sets all newly allocated memory to 0.
As the old variant has been used a lot for string-handling, we avoid
changing it as clearing memory is not needed there.
We should return seat_can_graphical() instead of seat_can_tty() for the
public dbus CanGraphical attribute. This used to work, but the
dbus -> sd-bus conversion introduced this regression.
Those files can be in a completely deferent format and also
arbitrarily long, and usually contain information about other
stuff. If we ever add SourceLine= or SourceLines= in addition
to SourcePath=, and can show the relevant information only, this
commit can be reverted.
itistoday> how do you specify multiple dependencies in a unit file? i've been
googling and can't find this basic thing :-\
itistoday> do you use a comma, or use multiple After= statements?
We must return a negative error code from getttyname_malloc but
that would not be the case if ttyname_r returned a negative value.
ttyname_r should only return EBADF, ENOTTY, or ERANGE so it should
be safe to change.
Since we want to retain the ability to break kernel ←→ userspace ABI
after the next release, let's not make use by default of kdbus, so that
people with future kernels will not suddenly break with current systemd
versions.
kdbus support is left in all builds but must now be explicitly requested
at runtime (for example via setting $DBUS_SESSION_BUS). Via a configure
switch the old behaviour can be restored. In fact, we change autogen.sh
to do this, so that git builds (which run autogen.sh) get kdbus by
default, but tarball builds (which ue the configure defaults) do not get
it, and hence this stays out of the distros by default.
The name list and query functions now work differently in kdbus, as the
result is stored in the connection's pool, rather than being copied back
through the ioctl buffer. That also safes us some logic, as we don't
have to resize the communication buffer in a loop with growing buffer
sizes.
Due to this, KDBUS_CMD_MSG_RELEASE was renamed to KDBUS_CMD_FREE, as it
is now used outside the message logic as well.
The signals appear entirely redundant due to NameOwnerChange, hence
don't do them in the new library, instead leave them for the
compatibility bridge only.
Also, set the serial number for synthesized messages to (uint32_t) -1.
We don't do this for .c files either, even they are also influence quite
a bit by makefile settings. Given that XSLT is a lot slower then the
rest of the build let's make our build a bit faster if people end up
touching the Makefile.
We need this so that one incoming kernel message can result in two
high-level bus messages, for the case where we synthesize NameAcquired
and NameOwnerChanged in the same instance.
