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#pragma once
#include <map>
#include <set>
#include "ledlayout.hpp"
namespace phosphor
{
namespace led
{
/** @class Manager
* @brief Manages group of LEDs and applies action on the elements of group
*/
class Manager
{
public:
/** @brief Only need the default Manager */
Manager() = delete;
~Manager() = default;
Manager(const Manager&) = delete;
Manager& operator=(const Manager&) = delete;
Manager(Manager&&) = delete;
Manager& operator=(Manager&&) = delete;
/** @brief For finding intersection */
static bool ledComp(const phosphor::led::Layout::LedAction& left,
const phosphor::led::Layout::LedAction& right)
{
return left.name < right.name;
}
using group = std::set<phosphor::led::Layout::LedAction>;
/** @brief static global map constructed at compile time */
const std::map<std::string, group>& ledMap;
/** @brief Refer the user supplied LED layout.
*
* @param [in] ledLayout - LEDs group layout
*/
explicit Manager(const std::map<std::string, Manager::group>& ledLayout)
: ledMap(ledLayout)
{
// Nothing here
}
/** @brief Given a group name, applies the action on the group
*
* @param[in] path - dbus path of group
* @param[in] assert - Could be true or false
* @param[in] ledsAssert - LEDs that are to be asserted newly
* @param[in] ledsDeAssert - LEDs that are to be Deasserted
* @param[in] ledsUpdate - LEDs that need a transition between
* different types of asserted states.
*
* @return - Success or exception thrown
*/
bool setGroupState(const std::string& path, bool assert,
group& ledsAssert, group& ledsDeAssert,
group& ledsUpdate);
/** @brief Finds the set of LEDs to operate on and executes action
*
* @param[in] ledsAssert - LEDs that are to be asserted newly
* @param[in] ledsDeAssert - LEDs that are to be Deasserted
* @param[in] ledsUpdate - LEDs that need a transition between
* different types of asserted states.
*
* @return: None
*/
void driveLEDs(group& ledsAssert, group& ledsDeAssert,
group& ledsUpdate);
private:
/** @brief Pointers to groups that are in asserted state */
std::set<const group*> assertedGroups;
/** @brief Contains the LEDs that are in asserted state */
group currentState;
};
} // namespace led
} // namespace phosphor
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