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Major improvements to the settings API

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* Allow the raw structure to be manipulated from C and Legacy APIs

 * Structure is now split between what's on the device and what's on the client so changes will not be visible from read methods until apply()

 * Allow devices to connect which have slightly different firmware versions than the settings structure
This commit is contained in:
Paul Hollinsky
2018-12-21 20:24:11 -05:00
parent 151b2ce266
commit e124ad28f4
13 changed files with 282 additions and 74 deletions
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api/icsneoc/icsneoc.cpp
+70
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@@ -338,6 +338,76 @@ bool icsneo_settingsApplyDefaultsTemporary(const neodevice_t* device) {
return device->device->settings->applyDefaults(true);
}
size_t icsneo_settingsReadStructure(const neodevice_t* device, void* structure, size_t structureSize) {
if(!icsneo_isValidNeoDevice(device)) {
ErrorManager::GetInstance().add(APIError::InvalidNeoDevice);
return 0;
}
size_t readSize = device->device->settings->getSize();
if(structure == nullptr) // Structure size request
return readSize;
if(readSize > structureSize) {
// Client application has a smaller structure than we do
// It is probably built against an older version of the API
ErrorManager::GetInstance().add(APIError::OutputTruncated);
readSize = structureSize;
}
const void* deviceStructure = device->device->settings->getRawStructurePointer();
if(deviceStructure == nullptr) {
ErrorManager::GetInstance().add(APIError::SettingsNotAvailable);
return 0;
}
memcpy(structure, deviceStructure, readSize);
if(readSize < structureSize) // Client application is attempting to read more than we have
memset((uint8_t*)structure + readSize, 0, structureSize - readSize);
return readSize;
}
// Not exported
static bool icsneo_settingsWriteStructure(const neodevice_t* device, const void* structure, size_t structureSize) {
if(!icsneo_isValidNeoDevice(device)) {
ErrorManager::GetInstance().add(APIError::InvalidNeoDevice);
return false;
}
if(structure == nullptr) {
ErrorManager::GetInstance().add(APIError::RequiredParameterNull);
return false;
}
size_t writeSize = device->device->settings->getSize();
if(writeSize < structureSize) {
ErrorManager::GetInstance().add(APIError::OutputTruncated);
structureSize = writeSize;
}
void* deviceStructure = device->device->settings->getMutableRawStructurePointer();
if(deviceStructure == nullptr) {
ErrorManager::GetInstance().add(APIError::SettingsNotAvailable);
return false;
}
memcpy(deviceStructure, structure, structureSize);
// If writeSize > structureSize that means that the user has given us a smaller structure
// This is okay, we will keep the end of the structure intact
// TODO Flag an error
return true;
}
bool icsneo_settingsApplyStructure(const neodevice_t* device, const void* structure, size_t structureSize) {
return icsneo_settingsWriteStructure(device, structure, structureSize) && icsneo_settingsApply(device);
}
bool icsneo_settingsApplyStructureTemporary(const neodevice_t* device, const void* structure, size_t structureSize) {
return icsneo_settingsWriteStructure(device, structure, structureSize) && icsneo_settingsApplyTemporary(device);
}
int64_t icsneo_getBaudrate(const neodevice_t* device, uint16_t netid) {
if(!icsneo_isValidNeoDevice(device)) {
ErrorManager::GetInstance().add(APIError::InvalidNeoDevice);