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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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3
core/device.h
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@ -28,6 +28,9 @@ const char *get_dc_nickname(const struct divecomputer *dc);
extern bool device_used_by_selected_dive(const struct device *dev);
extern const struct device *get_device_for_dc(const struct device_table *table, const struct divecomputer *dc);
extern bool device_exists(const struct device_table *table, const struct device *dev);
extern void add_to_device_table(struct device_table *table, const struct device *dev);
extern void remove_device(struct device_table *table, const struct device *dev);
// struct device accessors for C-code. The returned strings are not stable!
const char *device_get_model(const struct device *dev);