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#include <iostream>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
int main (int argc, char * const argv[]) {
// insert code here...
if (argc != 2) {
std::cout << "Incorrect usage\n";
return 0;
}
/*r1, r2, err := syscall.Syscall(syscall.SYS_FCNTL, uintptr(self.file.Fd()), syscall.F_NOCACHE, 1)
if err != 0 {
fmt.Printf("Syscall to SYS_FCNTL failed\n\tr1=%v, r2=%v, err=%v\n", r1, r2, err)
self.Close()
return false
}*/
char buf[4096];
int fHandle = open(argv[1], O_RDONLY);
if (fcntl(fHandle, F_NOCACHE, 1) >= 0 ) {
int bytesRead = read(fHandle, &buf, sizeof(buf));
buf[bytesRead] = '\0';
std::cout << buf;
} else {
printf("Failed to open direct access");
}
close(fHandle);
return 0;
}
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