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