it's midnight and i am about to fall asleep

fall-2024/sys-arch/sys-102/00040/.~lock.SYS-102 Assessment 1 - Thanawin Pattanaphol.odt#

@@ -1 +1 @@
-,winsdominoes,fedora,17.11.2024 20:23,file:///home/winsdominoes/.var/app/org.libreoffice.LibreOffice/config/libreoffice/4;
+,winsdominoes,fedora,17.11.2024 20:55,file:///home/winsdominoes/.var/app/org.libreoffice.LibreOffice/config/libreoffice/4;

fall-2024/sys-arch/sys-102/00040/source/interrupt.c

@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+#include <time.h>
+
+clock_t t;
+t = clock();
+
+int flag = 0;
+// Handling signal function
+void handle_signal(int signal)
+{
+	// If signal is SIGINT
+	if (signal == SIGQUIT)
+	{
+		// Set flag to its complement
+		// Print the flag value
+		flag = !flag;
+		printf("Flag: %d\n", flag);
+	}
+
+	if (signal == SIGINT)
+	{
+		t = clock() - t;
+		double time_taken = ((double)t)/CLOCKS_PER_SEC; // in seconds
+        printf("CPU Time: %f\n", t); 
+		_exit(0);
+	}
+}
+
+int main()
+{
+	// Handling signal
+	signal(SIGQUIT, handle_signal);
+	signal(SIGINT, handle_signal);
+	
+	// Let the program run until interrupt
+	while (1)
+	{
+		sleep(1);
+	}
+
+	//t = clock() - t; 
+    //double time_taken = ((double)t)/CLOCKS_PER_SEC; // in seconds 
+
+    printf("CPU Time: %f\n", t); 
+	
+	return 0;
+}

fall-2024/sys-arch/sys-102/00040/source/interrupt.c~

@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+#include <time.h>
+
+int flag = 0;
+// Handling signal function
+void handle_signal(int signal)
+{
+	// If signal is SIGINT
+	if (signal == SIGQUIT)
+	{
+		// Set flag to its complement
+		// Print the flag value
+		flag = !flag;
+		printf("Flag: %d\n", flag);
+	}
+
+	if (signal == SIGINT)
+	{
+		_exit(0);
+	}
+}
+
+int main()
+{
+	clock_t t;
+	t = clock();
+	// Handling signal
+	signal(SIGQUIT, handle_signal);
+	signal(SIGINT, handle_signal);
+	
+	// Let the program run until interrupt
+	while (1)
+	{
+		sleep(1);
+	}
+
+	t = clock() - t; 
+    double time_taken = ((double)t)/CLOCKS_PER_SEC; // in seconds 
+
+    printf("CPU Time: %f\n", t); 
+	
+	return 0;
+}

fall-2024/sys-arch/sys-102/00040/source/interrupts.c~

@@ -0,0 +1,7 @@
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+
+void handle_signal(int signal) {
+	
+}

fall-2024/sys-arch/sys-102/00040/source/polling.c

@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <termios.h>
+#include <unistd.h>
+
+int main()
+{
+	int c;
+	int flag = 0;
+	
+	/*
+	  THIS IS A REPLACEMENT FOR THE _KBHIT FUNCTION
+	*/
+	
+	// These structs are for saving tty parameters
+	static struct termios old_term, new_term;
+
+	// Get parameters associated with the tty
+	// Set the new tty parameters to the old one
+	tcgetattr(STDIN_FILENO, &old_term);
+	new_term = old_term;
+
+	// Set the new tty parameters to canonical mode
+	new_term.c_lflag &= ~(ICANON);
+
+	// Set tty attributes
+	tcsetattr(STDIN_FILENO, TCSANOW, &new_term);
+
+	// Get character input by user
+	while ((c = getchar()) != EOF)
+	{
+		flag = !flag;
+		printf("\n");
+		printf("Flag: %d\n", flag);
+	}
+
+	// Done retriving input
+	// Set tty parameters back to old tty parameters
+	tcsetattr(STDIN_FILENO, TCSANOW, &old_term);
+	
+	return 0;
+}

fall-2024/sys-arch/sys-102/00040/source/polling.c~

@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <termios.h>
+#include <unistd.h>
+
+int main()
+{
+	int c;
+	int flag = 0;
+	
+	/*
+	  THIS IS A REPLACEMENT FOR THE _KBHIT FUNCTION
+	*/
+	
+	// These structs are for saving tty parameters
+	static struct termios old_term, new_term;
+
+	// Get parameters associated with the tty
+	// Set the new tty parameters to the old one
+	tcgetattr(STDIN_FILENO, &old_term);
+	new_term = old_term;
+
+	// Set the new tty parameters to canonical mode
+	new_term.c_lflag &= ~(ICANON);
+
+	// Set tty attributes
+	tcsetattr(STDIN_FILENO, TCSANOW, &new_term);
+
+	// Get character input by user
+	while ((c = getchar()) != EOF)
+	{
+		flag = !flag;
+		printf("Flag: %d\n", flag);
+	}
+
+	// Done retriving input
+	// Set tty parameters back to old tty parameters
+	tcsetattr(STDIN_FILENO, TCSANOW, &old_term);
+	
+	return 0;
+}