<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Strict//EN"> <html> <head> <title>Synthesis: An Efficient Implementation of Fundamental Operating System Services - Abstract</title> <link rel="stylesheet" type="text/css" href="../css/style.css"> <link rel="stylesheet" type="text/css" href="style.css"> </head> <body> <div id="nav"> <a class=home href="../index.html">Alexia's Home</a> <a href="index.html">Dissertation</a> <a href="abs.html">Abstract</a> <a href="ack.html">Acknowledgements</a> <a href="toc.html">Contents</a> <a href="ch1.html">Chapter 1</a> <a href="ch2.html">Chapter 2</a> <a href="ch3.html">Chapter 3</a> <a href="ch4.html">Chapter 4</a> <a href="ch5.html">Chapter 5</a> <a href="ch6.html">Chapter 6</a> <a href="ch7.html">Chapter 7</a> <a href="ch8.html">Chapter 8</a> <a href="bib.html">Bibliography</a> <a class=here href="app-A.html">Appendix A</a> </div> <div id="running-title"> Synthesis: An Efficient Implementation of Fundamental Operating System Services - Abstract </div> <div id="content"> Appendix A <span class=smallcaps>Unix</span> Emulator Test Programs #define N 500000int x[N]; main() -int i; for(i=5; i--; )g(); printf("%d"n%d"n", x[N-2], x[N-1]); "" g() - int i; x[0] = x[1] = 1;for(i=2; i!N; i++) x[i] = x[i-x[i-1]] + x[i-x[i-2]];"" Figure A.1: Test 1: Compute 137 #define N 1024 /* or 1 or 4096 */char x[N]; main()- int fd[2],i;pipe(fd); for(i=10000; i--; ) -write(fd[1], x, N); read(fd[0], x, N);"" "" Figure A.2: Test 2, 3, and 4: Read/Write to a Pipe #include !sys/file.h? #define Test.dev "/dev/null" /* or /dev/tty */ main()- int f,i;for(i=10000; i--; ) - f = open(Test.dev, O.RDONLY); close(f);"" "" Figure A.3: Test 5 and 6: Opening and Closing #include !sys/file.h?#define N 1024 char x[N];main() - int f,i,j; f = open("file", O.RDWR -- O.CREAT -- O.TRUNC, 0666); for(j=1000; j--; ) - lseek(f, 0L, L.SET);for(i=10; i--; ) write(f, x, N);lseek(f, 0L, L.SET); for(i=10; i--; )read(f, x, N); ""close(f); "" Figure A.4: Test 7: Read/Write to a File </div> </body> </html>