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#include "internal.h"
#include <linux/unistd.h>
const char update_usage[] = "update\n"
"\n"
"\tFlush buffered data to the disk devices every 30 seconds.\n";
#if defined(__GLIBC__)
#include <sys/kdaemon.h>
#else
_syscall2(int, bdflush, int, func, int, data);
#endif /* __GLIBC__ */
extern int
update_main(struct FileInfo * i, int argc, char * * argv)
{
/*
* Update is actually two daemons, bdflush and update.
*/
int pid;
pid = fork();
if ( pid < 0 )
return pid;
else if ( pid == 0 ) {
/*
* This is no longer necessary since 1.3.5x, but it will harmlessly
* exit if that is the case.
*/
strcpy(argv[0], "bdflush (update)");
argv[1] = 0;
argv[2] = 0;
bdflush(1, 0);
_exit(0);
}
pid = fork();
if ( pid < 0 )
return pid;
else if ( pid == 0 ) {
argv[0] = "update";
for ( ; ; ) {
sync();
sleep(30);
}
}
return 0;
}
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