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#include <lib/components/file_eraser.h>
#include <lib/base/ioprio.h>
#include <lib/base/eerror.h>
#include <lib/base/init.h>
#include <lib/base/init_num.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>
eBackgroundFileEraser *eBackgroundFileEraser::instance;
eBackgroundFileEraser::eBackgroundFileEraser()
:messages(this,1), stop_thread_timer(eTimer::create(this))
{
if (!instance)
instance=this;
CONNECT(messages.recv_msg, eBackgroundFileEraser::gotMessage);
CONNECT(stop_thread_timer->timeout, eBackgroundFileEraser::idle);
}
void eBackgroundFileEraser::idle()
{
quit(0);
}
eBackgroundFileEraser::~eBackgroundFileEraser()
{
messages.send(Message::quit);
if (instance==this)
instance=0;
kill(); // i dont understand why this is needed .. in ~eThread::eThread is a kill() to..
}
void eBackgroundFileEraser::thread()
{
hasStarted();
nice(5);
setIoPrio(IOPRIO_CLASS_BE, 7);
reset();
runLoop();
stop_thread_timer->stop();
}
void eBackgroundFileEraser::erase(const char *filename)
{
if (filename)
{
char buf[255];
snprintf(buf, 255, "%s.del", filename);
if (rename(filename, buf)<0)
;/*perror("rename file failed !!!");*/
else
{
messages.send(Message(Message::erase, strdup(buf)));
run();
}
}
}
void eBackgroundFileEraser::gotMessage(const Message &msg )
{
switch (msg.type)
{
case Message::erase:
if ( msg.filename )
{
if ( ::unlink(msg.filename) < 0 )
eDebug("remove file %s failed (%m)", msg.filename);
else
eDebug("file %s erased", msg.filename);
free((char*)msg.filename);
}
stop_thread_timer->start(1000, true); // stop thread in one seconds
break;
case Message::quit:
quit(0);
break;
default:
eDebug("unhandled thread message");
}
}
eAutoInitP0<eBackgroundFileEraser> init_eBackgroundFilEraser(eAutoInitNumbers::configuration+1, "Background File Eraser");
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