Add an interface and implementation for a port scheduler that round-
robins between ports the scheduler is attached to, serializing command
execution among one or more MMPortSerial instances.
Theory of operation:
Sources (e.g. MMPort subclasses) register themselves with the scheduler.
Each source notifies the scheduler whenever its command queue depth changes,
for example when new commands are submitted, when commands are completed,
or when commands are canceled.
The scheduler will round-robin between all sources with pending commands,
sleeping when there are no pending commands from any source.
For each source with a pending command the scheduler will emit the
'send-command' signal with that source's ID. The given source should
send the next command in its queue to the modem.
When that command is finished (either successfully or with an error/timeout)
the source must call mm_port_scheduler_notify_command_done() to notify the
scheduler that it may advance to the next source with a pending command, if
any. If the 'send-command' signal and the notify_command_done() call are not
balanced the scheduler may stall.
Signed-off-by: Dan Williams <dan@ioncontrol.co>
MMSmsList has logic to allow multiple unstored messages as long as
they use SMS_PART_INVALID_INDEX. These messages aren't stored so
they don't have an index.
But the MBIM and QMI modems used index 0 for unstored messages,
meaning there could only ever be one and also that multipart
messages would fail to be combined.
Let's fix that by just using SMS_PART_INVALID_INDEX for every
scenario where an unstored message comes in.
Fixes: https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/979
Signed-off-by: Dan Williams <dan@ioncontrol.co>
This allows to parse the CBMs parameters like channel, part number and
message text. We parse uncompressed GSM7 and UCS2 encodings as
described in 3GPP TS 23.038.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
The input pattern given to the string_match() method is not a regex
pattern and we cannot use it as that, because all the special
characters (e.g. '.') would not be treated correctly.
Also, the prefix matching with the wildcard at the end of the string
needs to be converted to a proper regex wildcard, i.e. '.*'.
This logic also adds support for suffix matching, with a wildcard at
the beginning of the string, e.g. as the ones used for the wwan kernel
device name matching rules (i.e. '*MBIM').
Unit tests are added to cover all cases, most of these tests were
failing without the fixes implemented here.
meson is a build system focused on speed an ease of use, which
helps speeding up the software development. This patch adds meson
support along autotools.
Dan Williams
Guido Günther
Aleksander Morgado
Aleksander Morgado
Iñigo Martínez