core: add C struct device and struct device_table accessors

Up to now, "struct device" and "struct device_table" were C++
only, because they used C++ strings for convenience. Since we
switched from QString to std::string, we can create accessors
for these structs. For the C code, we simply declare them as
opaque structs and give the full definition only for C++.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

1 files changed, 37 insertions, 0 deletions

diff --git a/core/device.cpp b/core/device.cpp
index 21a53e2f6..b65c8dd7f 100644
--- a/core/device.cpp
+++ b/core/device.cpp
@@ -358,3 +358,40 @@ const char *get_dc_nickname(const struct divecomputer *dc)
 	else
 		return dc->model;
 }
+
+extern "C" int nr_devices(const struct device_table *table)
+{
+	return (int)table->devices.size();
+}
+
+extern "C" const struct device *get_device(const struct device_table *table, int i)
+{
+	if (i < 0 || i > nr_devices(table))
+		return NULL;
+	return &table->devices[i];
+}
+
+extern "C" const char *device_get_model(const struct device *dev)
+{
+	return dev ? dev->model.c_str() : NULL;
+}
+
+extern "C" const uint32_t device_get_id(const struct device *dev)
+{
+	return dev ? dev->deviceId : -1;
+}
+
+extern "C" const char *device_get_serial(const struct device *dev)
+{
+	return dev ? dev->serialNumber.c_str() : NULL;
+}
+
+extern "C" const char *device_get_firmware(const struct device *dev)
+{
+	return dev ? dev->firmware.c_str() : NULL;
+}
+
+extern "C" const char *device_get_nickname(const struct device *dev)
+{
+	return dev ? dev->nickName.c_str() : NULL;
+}