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#pragma once
#include <systemd/sd-event.h>
#include <functional>
namespace phosphor
{
namespace software
{
namespace manager
{
/** @class Watch
*
* @brief Adds inotify watch on software image upload directory
*
* The inotify watch is hooked up with sd-event, so that on call back,
* appropriate actions related to a software image upload can be taken.
*/
class Watch
{
public:
/** @brief ctor - hook inotify watch with sd-event
*
* @param[in] loop - sd-event object
* @param[in] imageCallback - The callback function for processing
* the image
*/
Watch(sd_event* loop, std::function<int(std::string&)> imageCallback);
Watch(const Watch&) = delete;
Watch& operator=(const Watch&) = delete;
Watch(Watch&&) = delete;
Watch& operator=(Watch&&) = delete;
/** @brief dtor - remove inotify watch and close fd's
*/
~Watch();
private:
/** @brief sd-event callback
*
* @param[in] s - event source, floating (unused) in our case
* @param[in] fd - inotify fd
* @param[in] revents - events that matched for fd
* @param[in] userdata - pointer to Watch object
* @returns 0 on success, -1 on fail
*/
static int callback(sd_event_source* s, int fd, uint32_t revents,
void* userdata);
/** @brief image upload directory watch descriptor */
int wd = -1;
/** @brief inotify file descriptor */
int fd = -1;
/** @brief The callback function for processing the image. */
std::function<int(std::string&)> imageCallback;
};
} // namespace manager
} // namespace software
} // namespace phosphor
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