This changes the new output API's recv() to receive(), and has it
return an integer status code. The output of the function, if any,
is stored in a new parameter as a pointer to a newly allocated GString.
All output modules using this API have been adjusted.
With the sigrok session running in a worker thread, if sr_session_stop is called
from another thread, it shuts down the pollfds used by the hardware drivers,
without ensuring that the sigrok event loop is no longer using those pollfds.
On the demo driver, this involves shutting down the GIOChannels, causing a
segfault when the sigrok event loop tries to use them. This is evident when
using the Stop button in PulseView, while the session is running.
This isn't a problem with just the demo driver; any driver's resources may be
freed by sr_session_stop concurrently with the sigrok session running.
To solve this problem, we don't touch the session itself in sr_session_stop().
Instead, we mark it for decommissioning and return. The session polls this flag,
and shuts itself down when requested.
This fixes bug 4.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Number of timebases is needed to properly interpret a frame's worth
of samples. Number of vertical divisions isn't, but may nevertheless
be interesting for a frontend that wants to reproduce the scope's
native display.
sr_config_get() of SR_CONF_SAMPLERATE now returns a GVARIANT_TYPE_DICTIONARY.
This dictionary contains a single key-value pair. Possible values for the key:
- "samplerates": the value is an array of GVARIANT_TYPE_UINT64 representing
all valid samplerates.
- "samplerate-steps": the value is an array of GVARIANT_TYPE_UINT64 with
exactly three members, which represent the lowest samplerate, highest
samplerate, and the minimum step, respectively.
sr_config_get() provides a GVariant owned by the caller, so it must be
released with g_variant_unref() when done.
sr_config_set() takes a GVariant from the caller which may be floating;
it will be properly sunk and release after use by this function. Thus
the output of g_variant_new_*() may be used as an argument.
sr_config_list() also provides a GVariant owned by the caller, to be
unreferenced when done.
sr_config_make() can take a floating reference.
Expresses the time between samples, in milliseconds. This can be used
for devices with a samplerate > 1 second, such as dataloggers, which
cannot be expressed with SR_CONF_SAMPLERATE.
This is essential if a format contains e.g. the number of probes; the
init() function needs to initialize the sr_dev_inst struct, but needs
access to the file to properly add the probes to it.
This takes an sr_config key and returns a list of possible values for
that key to be submitted with config_set(). The format of the list and
its contents is dependent on the key.
This will replace the SR_DI_* keys that returned such a list before,
such as SR_DI_SAMPLERATES.
Bert Vermeulen
Martin Ling
Uwe Hermann
Alexandru Gagniuc