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devices: add functions to add / remove / check for devices

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To include the device code in the undo system, we need functions
to check for the existence of devices and to add or remove them.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2020-10-17 14:01:52 +02:00 • committed by Dirk Hohndel
parent a261466594
commit 53118be1f9
3 changed files with 26 additions and 2 deletions
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22
core/device.cpp
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@ -218,7 +218,7 @@ bool device::operator<(const device &a) const
return strcoll(model.c_str(), a.model.c_str()) < 0;
}
const struct device *get_device_for_dc(const struct device_table *table, const struct divecomputer *dc)
extern "C" const struct device *get_device_for_dc(const struct device_table *table, const struct divecomputer *dc)
{
const std::vector<device> &dcs = table->devices;
device dev { dc->model, dc->deviceid, {}, {}, {} };
@ -226,6 +226,12 @@ const struct device *get_device_for_dc(const struct device_table *table, const s
return it != dcs.end() && same_device(*it, dev) ? &*it : NULL;
}
extern "C" bool device_exists(const struct device_table *device_table, const struct device *dev)
{
auto it = std::lower_bound(device_table->devices.begin(), device_table->devices.end(), *dev);
return it != device_table->devices.end() && same_device(*it, *dev);
}
/*
* When setting the device ID, we also fill in the
* serial number and firmware version data
@ -292,6 +298,20 @@ extern "C" void create_device_node(struct device_table *device_table, const char
addDC(device_table->devices, model ?: "", deviceid, nickname ?: "", serial ?: "", firmware ?: "");
}
/* Does not check for duplicates! */
extern "C" void add_to_device_table(struct device_table *device_table, const struct device *dev)
{
auto it = std::lower_bound(device_table->devices.begin(), device_table->devices.end(), *dev);
device_table->devices.insert(it, *dev);
}
extern "C" void remove_device(struct device_table *device_table, const struct device *dev)
{
auto it = std::lower_bound(device_table->devices.begin(), device_table->devices.end(), *dev);
if (it != device_table->devices.end() && same_device(*it, *dev))
device_table->devices.erase(it);
}
extern "C" void clear_device_table(struct device_table *device_table)
{
device_table->devices.clear();