57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
#include <stdio.h>
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#include <termios.h>
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#include <unistd.h>
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#include <time.h>
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int main()
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{
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clock_t start, end;
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double cpu_time_used;
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// Set start to current CPU time
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start = clock();
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int c;
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int flag = 0;
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int laps = 0;
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/*
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THIS IS A REPLACEMENT FOR THE _KBHIT FUNCTION
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*/
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// These structs are for saving tty parameters
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static struct termios old_term, new_term;
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// Get parameters associated with the tty
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// Set the new tty parameters to the old one
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tcgetattr(STDIN_FILENO, &old_term);
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new_term = old_term;
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// Set the new tty parameters to canonical mode
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new_term.c_lflag &= ~(ICANON);
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// Set tty attributes
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tcsetattr(STDIN_FILENO, TCSANOW, &new_term);
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// Get character input by user
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while ((c = getchar()) != EOF && laps < 10)
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{
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// Flip the flag
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flag = !flag;
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laps++;
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printf("\n");
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printf("Flag: %d\n", flag);
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}
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// Done retriving input
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// Set tty parameters back to old tty parameters
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tcsetattr(STDIN_FILENO, TCSANOW, &old_term);
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end = clock();
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cpu_time_used = ((double) (end - start)) / CLOCKS_PER_SEC;
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printf("CPU Time: %f\n", cpu_time_used);
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return 0;
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}
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