45 lines
1.0 KiB
Plaintext
45 lines
1.0 KiB
Plaintext
#content
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Appendix A
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%span.smallcaps Unix
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Emulator Test Programs
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\#define N 500000int x[N]; main() -int i;
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for(i=5; i--; )g(); printf("%d"n%d"n", x[N-2], x[N-1]); ""
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g() - int i;
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x[0] = x[1] = 1;for(i=2; i!N; i++)
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x[i] = x[i-x[i-1]] + x[i-x[i-2]];""
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Figure A.1: Test 1: Compute
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137 #define N 1024 /* or 1 or 4096 */char x[N]; main()-
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int fd[2],i;pipe(fd); for(i=10000; i--; ) -write(fd[1], x, N);
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read(fd[0], x, N);"" ""
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Figure A.2: Test 2, 3, and 4: Read/Write to a Pipe
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\#include !sys/file.h? #define Test.dev "/dev/null" /* or /dev/tty */ main()-
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int f,i;for(i=10000; i--; ) -
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f = open(Test.dev, O.RDONLY); close(f);""
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""
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Figure A.3: Test 5 and 6: Opening and Closing
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\#include !sys/file.h?#define N 1024 char x[N];main() - int f,i,j;
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f = open("file", O.RDWR -- O.CREAT -- O.TRUNC, 0666); for(j=1000; j--; ) -
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lseek(f, 0L, L.SET);for(i=10; i--; )
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write(f, x, N);lseek(f, 0L, L.SET); for(i=10; i--; )read(f, x, N); ""close(f); ""
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Figure A.4: Test 7: Read/Write to a File
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