diff options
Diffstat (limited to 'OLD/csci4061')
27 files changed, 0 insertions, 1191 deletions
diff --git a/OLD/csci4061/091420_breakout/Makefile b/OLD/csci4061/091420_breakout/Makefile deleted file mode 100644 index 1e807a9..0000000 --- a/OLD/csci4061/091420_breakout/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -CC=gcc -CFLAGS=-I./include -OBJ=main.o name.o address.o major.o -EXE=w2.out - -all: $(EXE) - -$(EXE): $(OBJ) - $(CC) -o $@ $^ $(CFLAGS) - -%.o: %.c - $(CC) -c -o $@ $< $(CFLAGS) -clean: - rm *.o $(EXE) -run: - ./$(EXE)
\ No newline at end of file diff --git a/OLD/csci4061/091420_breakout/address.c b/OLD/csci4061/091420_breakout/address.c deleted file mode 100644 index 3f36f70..0000000 --- a/OLD/csci4061/091420_breakout/address.c +++ /dev/null @@ -1,15 +0,0 @@ -#include "include/main.h" -#include "include/address.h" - -/* - * Write getAddress function - * void getAddress(char * address); - * Prints a prompt "Enter your address: " to get an address, - * Reads in the user's address - */ - -void getAddress(char * address) { - printf("Enter your address: "); - fgets(address, maxLen, stdin); - fflush(stdin); -}
\ No newline at end of file diff --git a/OLD/csci4061/091420_breakout/include/address.h b/OLD/csci4061/091420_breakout/include/address.h deleted file mode 100644 index 97a4c03..0000000 --- a/OLD/csci4061/091420_breakout/include/address.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef INC_091420_BREAKOUT_ADDRESS_H -#define INC_091420_BREAKOUT_ADDRESS_H - -void getAddress(char * address); - -#endif //INC_091420_BREAKOUT_ADDRESS_H diff --git a/OLD/csci4061/091420_breakout/include/main.h b/OLD/csci4061/091420_breakout/include/main.h deleted file mode 100644 index 6f7f6fe..0000000 --- a/OLD/csci4061/091420_breakout/include/main.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef INC_091420_BREAKOUT_MAIN_H -#define INC_091420_BREAKOUT_MAIN_H - -#include <stdio.h> -static const int maxLen = 100; - -#endif //INC_091420_BREAKOUT_MAIN_H diff --git a/OLD/csci4061/091420_breakout/include/major.h b/OLD/csci4061/091420_breakout/include/major.h deleted file mode 100644 index e649ea6..0000000 --- a/OLD/csci4061/091420_breakout/include/major.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef INC_091420_BREAKOUT_MAJOR_H -#define INC_091420_BREAKOUT_MAJOR_H - -void getMajor(char * major); - -#endif //INC_091420_BREAKOUT_MAJOR_H diff --git a/OLD/csci4061/091420_breakout/include/name.h b/OLD/csci4061/091420_breakout/include/name.h deleted file mode 100644 index 2bb96aa..0000000 --- a/OLD/csci4061/091420_breakout/include/name.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef INC_091420_BREAKOUT_NAME_H -#define INC_091420_BREAKOUT_NAME_H - -void getName(char * name); - -#endif //INC_091420_BREAKOUT_NAME_H diff --git a/OLD/csci4061/091420_breakout/main.c b/OLD/csci4061/091420_breakout/main.c deleted file mode 100644 index aeb989e..0000000 --- a/OLD/csci4061/091420_breakout/main.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * Recitation section number: - * Breakout Group Number: - * Member name (email address): - * Member name (email address): - * Member name (email address): - * Member name (email address): - * Member name (email address): - * Member name (email address): - * Member name (email address): - */ - -#include "include/main.h" -#include "include/name.h" -#include "include/address.h" -#include "include/major.h" - -int main() { - - char name[maxLen]; - char address[maxLen]; - char major[maxLen]; - - printf("Hi there! \nTell me more about you.\n"); - getName(name); - getAddress(address); - getMajor(major); - - printf("Thanks for your information!\n"); - printf("Your name: %s", name); - printf("Your address: %s", address); - printf("Your major: %s", major); - printf("Bye!\n"); - - return 0; -}
\ No newline at end of file diff --git a/OLD/csci4061/091420_breakout/major.c b/OLD/csci4061/091420_breakout/major.c deleted file mode 100644 index cfc9cef..0000000 --- a/OLD/csci4061/091420_breakout/major.c +++ /dev/null @@ -1,15 +0,0 @@ -#include "include/main.h" -#include "include/major.h" - -/* - * Write getMajor function - * void getMajor(char * major); - * Prints a prompt "Enter your major: " to get an major, - * Reads in the user's major - */ - -void getMajor(char * major) { - printf("Enter your major: "); - fgets(major, maxLen, stdin); - fflush(stdin); -}
\ No newline at end of file diff --git a/OLD/csci4061/091420_breakout/name.c b/OLD/csci4061/091420_breakout/name.c deleted file mode 100644 index 97c2a9d..0000000 --- a/OLD/csci4061/091420_breakout/name.c +++ /dev/null @@ -1,8 +0,0 @@ -#include "include/main.h" -#include "include/name.h" - -void getName(char * name) { - printf("Enter your name: "); - fgets(name, maxLen, stdin); - fflush(stdin); -}
\ No newline at end of file diff --git a/OLD/csci4061/092120_breakout/main.c b/OLD/csci4061/092120_breakout/main.c deleted file mode 100644 index 8d8e08d..0000000 --- a/OLD/csci4061/092120_breakout/main.c +++ /dev/null @@ -1,50 +0,0 @@ -/* -CSci 4061 - Recitation 2 - 21st Sept 2020 -Breakout 1 -An iditoic loner's lone attempt -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <unistd.h> -#include <errno.h> - -int main(int argc, char **argv) { - // take 'n' from the input and convert to integer - // hint: see cmd slide - if (argc < 2) { - printf("USAGE: ./main int\n"); - return -1; - } - int n = strtol(argv[1], NULL, 10); - // for i in n - // create child process - // print pid //hint: check week 2 slides - // call execl to print 'hello there' using 'echo' //hint: check recitation slide - pid_t pid; - for (int i=0; i<n; i++) { - pid = fork(); - if (pid == 0) { - - } else { -printf("%d\n", getpid()); - execl("/bin/echo", "/bin/echo", "hello", "there", NULL); - } - } - // parent waits for all child processes to terminate - for (int i=0; i<n; i++) { - wait(NULL); - } - // parent create child process - // call execv on 'ptime' executable // hint: similar to 'echo' usage in slide - pid = fork(); - if (pid != 0) { - char *args[] = {"./ptime", NULL}; - execv(*args, args); - } - // parent waits for child to complete - waitpid(pid, NULL, 0); - return 0; -}
\ No newline at end of file diff --git a/OLD/csci4061/092820_breakout/main.c b/OLD/csci4061/092820_breakout/main.c deleted file mode 100644 index 0757a06..0000000 --- a/OLD/csci4061/092820_breakout/main.c +++ /dev/null @@ -1,36 +0,0 @@ -/* -* Recitation Section Number: -* Breakout Number: -* Member Name -* Member Name -* Member Name -* Member Name -*/ - - -#include<stdio.h> -#include <stdlib.h> // For exit() - - -int main() { - - //STEP 1 - //Your code to open the file copy the file and close the file - FILE* fread = fopen("sample.txt", "r"); - FILE* fwrite = fopen("sample_copy.txt", "w"); - int bufsize = 30; - char str[bufsize]; - fgets(str, bufsize, fread); - fputs(str, fwrite); - - //STEP 2 - //Your code to read the text and add the numbers - char* text = "sample text 2 4 5"; - int a=0, b=0, c=0; - char* waste1; char* waste2; - sscanf(text, "%s %s %d %d %d", &waste1, &waste2, &a, &b, &c); - printf("%d\n", a+b+c); - - return 0; - -}
\ No newline at end of file diff --git a/OLD/csci4061/092820_breakout/sample.txt b/OLD/csci4061/092820_breakout/sample.txt deleted file mode 100644 index e568c7b..0000000 --- a/OLD/csci4061/092820_breakout/sample.txt +++ /dev/null @@ -1 +0,0 @@ -abcdefghijklmnopqrstuvwxya
\ No newline at end of file diff --git a/OLD/csci4061/092820_breakout/sample_copy.txt b/OLD/csci4061/092820_breakout/sample_copy.txt deleted file mode 100644 index e568c7b..0000000 --- a/OLD/csci4061/092820_breakout/sample_copy.txt +++ /dev/null @@ -1 +0,0 @@ -abcdefghijklmnopqrstuvwxya
\ No newline at end of file diff --git a/OLD/csci4061/100520_breakout/exercise.c b/OLD/csci4061/100520_breakout/exercise.c deleted file mode 100644 index 6d560d5..0000000 --- a/OLD/csci4061/100520_breakout/exercise.c +++ /dev/null @@ -1,47 +0,0 @@ -/* -* Recitation Section Number: -* Breakout Number: -* Member Name -* Member Name -* Member Name -* Member Name -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <errno.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <string.h> -#define BUFSIZE 20 -#define PERM 0644 -int main(int argc, char *argv[]) { - int infile; char buffer[BUFSIZE]; - // create/open a file named write.txt - infile = open("write.txt", O_CREAT | O_RDWR | O_TRUNC, PERM); - // write hello world to write.txtS - write(infile, "hello world\n", 12); - // spawn a child process and use this child process to reroute stdout to write.txt - pid_t pid = fork(); - if (!pid) { - dup2(infile, 1); - } - // print pid - printf("Process %d\n", pid); - - // use the child process spawned previously to read the contents from write.txt, restore output to stdout - // and then prints the contents of write.txt to stdout. - if (!pid) { - read(infile, buffer, 20); - int stdout = open("/dev/tty", O_WRONLY); - dup2(1, stdout); - printf("%s\n", buffer); - return 0; - } - // print pid - printf("%d\n", pid); - // close the file write.txt - close(infile); - return 0; -}
\ No newline at end of file diff --git a/OLD/csci4061/101220_breakout/exercise.c b/OLD/csci4061/101220_breakout/exercise.c deleted file mode 100644 index b6e863e..0000000 --- a/OLD/csci4061/101220_breakout/exercise.c +++ /dev/null @@ -1,82 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <sys/stat.h> -#include <unistd.h> -#include <fcntl.h> -#include <dirent.h> -#include <string.h> -#include <time.h> - -int numOfEntry(char *path) -{ - int count = 0; - DIR *dir = opendir(path); - struct dirent *entry; - - while ((entry = readdir(dir)) != NULL) - { - - if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, "..")) - continue; - - count++; - } - - closedir(dir); - - return count; -} - -int main(int argc, char **argv) -{ - - if (argc < 2) - { - printf("Pass the path as an argument to the program"); - exit(1); - } - - char *path = argv[1]; - - DIR *dir = opendir(path); - if (dir == NULL) - { - printf("The path passed is invalid"); - return -1; - } - struct dirent *entry; - - while ((entry = readdir(dir)) != NULL) - { - - if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, "..")) - continue; - - if (entry->d_type == DT_DIR) - { - char next[strlen(path) + strlen(entry->d_name) + 2]; - next[0] = '\0'; - strcat(next, path); - strcat(next, "/"); - strcat(next, entry->d_name); - printf("Directory: %s\n\tEntries: %d\n", entry->d_name, numOfEntry(next)); - } - else if (entry->d_type == DT_REG) - { - struct stat *buf = (struct stat *)malloc(sizeof(struct stat)); - stat(entry->d_name, buf); - printf("Regular File: %s\n\tOwner: %d\n\tSize: %f\n\tInode: %llu\n", - entry->d_name, buf->st_uid, (double)buf->st_size, buf->st_ino); - free(buf); - } - else - { - printf("File: %s\n\tType:%hhu\n", entry->d_name, entry->d_type); - } - } - - closedir(dir); - return 0; -}
\ No newline at end of file diff --git a/OLD/csci4061/101920_breakout/pipe_template.c b/OLD/csci4061/101920_breakout/pipe_template.c deleted file mode 100644 index 2c37941..0000000 --- a/OLD/csci4061/101920_breakout/pipe_template.c +++ /dev/null @@ -1,65 +0,0 @@ -// ----------------------------------------------------------------------------- -// Pipes -// -// Write a program that creates a child process and pipes the string -// "hello child" to the child to be printed. The parent should wait for the -// child to terminate -// -// Template: Implement the TODOs -// -// Expected output: -// Parent Sending: hello child -// Child Received: hello child -// ----------------------------------------------------------------------------- - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/wait.h> -#include <unistd.h> - -int main(void) { - // Open pipe - int ends[2]; - pipe(ends); - - char string_to_send[] = "hello child"; - int bytes_to_send_recv = strlen(string_to_send) + 1; - - // Create child process - pid_t pid = fork(); - if (pid < 0) { - // Error - fprintf(stderr, "ERROR: Failed to fork\n"); - } - else if (pid > 0) { - // Parent - printf("Parent Sending: %s\n", string_to_send); - - // Parent doesn't need read file descriptor - close(ends[0]); - // Write the string to the pipe - write(ends[1], string_to_send, bytes_to_send_recv); - // Done writing - close(ends[1]); - // Wait for child to terminate - wait(NULL); - } - else { - // Child - - char *recv_buffer = malloc(bytes_to_send_recv); - - // Child doesn't need write file descriptor - close(ends[1]); - // Read the string from the pipe - read(ends[0], recv_buffer, bytes_to_send_recv); - // Done reading - close(ends[0]); - // Print result - printf("Child Received: %s\n", recv_buffer); - free(recv_buffer); - } - - return 0; -} diff --git a/OLD/csci4061/102620_breakout/msg_queue_template.c b/OLD/csci4061/102620_breakout/msg_queue_template.c deleted file mode 100644 index af026f3..0000000 --- a/OLD/csci4061/102620_breakout/msg_queue_template.c +++ /dev/null @@ -1,108 +0,0 @@ -/* -* Recitation Section Number: 02 -* Breakout Number: 05 -* Graden Hill (hill1582) -* Gustav Baumgart (baumg260) -* Matt Strapp (strap012) -* Skylan Recnana (recan001) -*/ - -#include <stdio.h> -#include <sys/ipc.h> -#include <sys/msg.h> -#include <sys/wait.h> -#include <zconf.h> -#include <string.h> -#include <stdlib.h> - -#define PERM 0666 -#define MSGSIZE 100 -#define NCHILD 3 - -// structure for message queue -typedef struct msg_buffer { - long mtype; - char mtext[MSGSIZE]; -} message; - -int main(void) { - key_t key; - int msgid; - pid_t pid1, pid2; - message msg; - - // generate unique key - key = ftok("recitation", 4061); - - // creates a message queue - msgid = msgget(key, PERM | IPC_CREAT); - - - // sender child process - pid1 = fork(); - if (pid1 == 0) { - for (int i = 0; i < NCHILD; i++) { - msg.mtype = 111; - memset(msg.mtext, '\0', MSGSIZE); - sprintf(msg.mtext, "Hello child %d", i); - // send message to other child processes - msgsnd(msgid, &msg, MSGSIZE, 0); - - - // display the message - printf("[%d] Data sent is : %s \n", i, msg.mtext); - } - - for (int i = 0; i < NCHILD; i++) { - msg.mtype = 222; - memset(msg.mtext, '\0', MSGSIZE); - sprintf(msg.mtext, "Message %d", i); - // send message to other child processes - msgsnd(msgid, &msg, MSGSIZE, 0); - - // display the message - printf("[%d] Data sent is : %s \n", i, msg.mtext); - } - - for (int i = 0; i < NCHILD; i++) { - msg.mtype = 333; - memset(msg.mtext, '\0', MSGSIZE); - sprintf(msg.mtext, "Bye %d", i); - // send message to other child processes - msgsnd(msgid, &msg, MSGSIZE, 0); - - // display the message - printf("[%d] Data sent is : %s \n", i, msg.mtext); - } - - exit(0); - } else if (pid1 < 0) { - printf("fork1 error\n"); - return -1; - } - - // receiver child processes - for (int j = 0; j < NCHILD; j++) { - if ((pid2 = fork()) == 0) { - // receive message - msgrcv(msgid, &msg, MSGSIZE, 222, 0); - - - // display the message - printf("[%d] Data received is : %s \n", j, msg.mtext); - - exit(0); - } else if (pid2 < 0) { - printf("fork2 error\n"); - return -1; - } - } - - while (wait(NULL) > 0); - - // to destroy the message queue - msgctl(msgid, IPC_RMID, NULL); - - - return 0; -}
\ No newline at end of file diff --git a/OLD/csci4061/110920_breakout/chap8/Makefile b/OLD/csci4061/110920_breakout/chap8/Makefile deleted file mode 100644 index bd92bec..0000000 --- a/OLD/csci4061/110920_breakout/chap8/Makefile +++ /dev/null @@ -1,12 +0,0 @@ -pgm81: pgm_8_1.c - gcc pgm_8_1.c -lm -o out - ./out 5 - -pgm85: pgm_8_5.c - gcc pgm_8_5.c -lm -o out - ./out - -.PHONY: clean - -clean: - rm out diff --git a/OLD/csci4061/110920_breakout/chap8/pgm_8_1.c b/OLD/csci4061/110920_breakout/chap8/pgm_8_1.c deleted file mode 100644 index a979bb6..0000000 --- a/OLD/csci4061/110920_breakout/chap8/pgm_8_1.c +++ /dev/null @@ -1,42 +0,0 @@ -// Program 8.1 - -#include <math.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - -int main(int argc, char *argv[]) { - int i; - sigset_t intmask; - int repeatfactor; - double y = 0.0; - - if (argc != 2) { - fprintf(stderr, "Usage: %s repeatfactor\n", argv[0]); - return 1; - } - repeatfactor = atoi(argv[1]); - if ((sigemptyset(&intmask) == -1) || (sigaddset(&intmask, SIGINT) == -1)){ - perror("Failed to initialize the signal mask"); - return 1; - } - for ( ; ; ) { - if (sigprocmask(SIG_BLOCK, &intmask, NULL) == -1) - break; - fprintf(stderr, "SIGINT signal blocked\n"); - for (i = 0; i < repeatfactor; i++) - y += sin((double)i); - fprintf(stderr, "Blocked calculation is finished, y = %f\n", y); - sleep(3); - if (sigprocmask(SIG_UNBLOCK, &intmask, NULL) == -1) - break; - fprintf(stderr, "SIGINT signal unblocked\n"); - for (i = 0; i < repeatfactor; i++) - y += sin((double)i); - fprintf(stderr, "Unblocked calculation is finished, y=%f\n", y); - sleep(3); - } - perror("Failed to change signal mask"); - return 1; -}
\ No newline at end of file diff --git a/OLD/csci4061/110920_breakout/chap8/pgm_8_5.c b/OLD/csci4061/110920_breakout/chap8/pgm_8_5.c deleted file mode 100644 index b20cdfa..0000000 --- a/OLD/csci4061/110920_breakout/chap8/pgm_8_5.c +++ /dev/null @@ -1,43 +0,0 @@ -// Program 8.5 - -#include <math.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> - -static volatile sig_atomic_t doneflag = 0; - -/* ARGSUSED */ -static void setdoneflag(int signo) { - doneflag = 1; -} - -int main (void) { - struct sigaction act; - int count = 0; - double sum = 0; - double x; - - act.sa_handler = setdoneflag; /* set up signal handler */ - act.sa_flags = 0; - if ((sigemptyset(&act.sa_mask) == -1) || - (sigaction(SIGINT, &act, NULL) == -1)) { - perror("Failed to set SIGINT handler"); - return 1; - } - - while (!doneflag) { - x = (rand() + 0.5)/(RAND_MAX + 1.0); - sum += sin(x); - count++; - printf("Count is %d and average is %f\n", count, sum/count); - sleep(3); - } - - printf("Program terminating ...\n"); - if (count == 0) - printf("No values calculated yet\n"); - else - printf("Count is %d and average is %f\n", count, sum/count); - return 0; -}
\ No newline at end of file diff --git a/OLD/csci4061/110920_breakout/sol1.c b/OLD/csci4061/110920_breakout/sol1.c deleted file mode 100644 index d33b0df..0000000 --- a/OLD/csci4061/110920_breakout/sol1.c +++ /dev/null @@ -1,37 +0,0 @@ -/* -* Recitation Section Number: 9 -* Breakout Number: 6 -* Audrey Hebert (heber169) -* Qiyu Tian (tian0068) -* Mouhari Mouhamed (mouha003) -* Matt Strapp (strap012) -*/ - -#include <stdio.h> -#include <signal.h> -#include <unistd.h> -#include <time.h> - -void infinitePrint() { - - static int count = 0; - printf("%ld: Count = %d\n", time(NULL), ++count); - sleep(1); -} - -int main() { - - // ------------------sol1.c----------------- - // initialize new sigset - sigset_t, sigemptyset - sigset_t sigset; - sigemptyset(&sigset); - // add SIGINT to sigset - sigaddset - sigaddset(&sigset, SIGINT); - // block SIGINT - sigprocmask - sigprocmask(SIG_BLOCK, &sigset, NULL); - // Do not modify the while loop and infinitePrint() - // ----------------------------------------- - - /* Print infinitely. */ - while (1) infinitePrint(); -}
\ No newline at end of file diff --git a/OLD/csci4061/110920_breakout/sol2.c b/OLD/csci4061/110920_breakout/sol2.c deleted file mode 100644 index 04dad3e..0000000 --- a/OLD/csci4061/110920_breakout/sol2.c +++ /dev/null @@ -1,52 +0,0 @@ -/* -* Recitation Section Number: 9 -* Breakout Number: 6 -* Audrey Hebert (heber169) -* Qiyu Tian (tian0068) -* Mouhari Mouhamed (mouha003) -* Matt Strapp (strap012) -*/ - -#include <stdio.h> -#include <signal.h> -#include <unistd.h> -#include <time.h> - -// Remember the usage of sig_atomic_t in the recitation example -static volatile sig_atomic_t doneflag = 0; - -static void setdoneflag(int signo) { - doneflag = doneflag ^ 1; -} - -void infinitePrint() { - - static int count = 0; - printf("%ld: Count = %d\n", time(NULL), ++count); - sleep(1); -} - -int main() { - - // ------------------sol2.c----------------- - // setup signal handler - sigaction struct, sigemptyset, - struct sigaction act; - sigset_t sigset; - // specify action associated with SIGNT - sigaction() - act.sa_handler = setdoneflag; /* set up signal handler */ - act.sa_flags = 0; - if ((sigemptyset(&act.sa_mask) == -1) || - (sigaction(SIGINT, &act, NULL) == -1)) - { - perror("Failed to set SIGINT handler"); - return 1; - } - // You are free to modify the while loop but not the infinitePrint() - // ----------------------------------------- - - /* Print infinitely. */ - while (1) { - if (!doneflag) - infinitePrint(); - } -}
\ No newline at end of file diff --git a/OLD/csci4061/110920_breakout/zip/sol1.c b/OLD/csci4061/110920_breakout/zip/sol1.c deleted file mode 100644 index ca60c50..0000000 --- a/OLD/csci4061/110920_breakout/zip/sol1.c +++ /dev/null @@ -1,37 +0,0 @@ -/* -* Recitation Section Number: 9 -* Breakout Number: -* Audrey Hebert (heber169) -* Qiyu Tian (tian0068) -* Mouhari Mouhamed (mouha003) -* Matt Strapp (strap012) -*/ - -#include <stdio.h> -#include <signal.h> -#include <unistd.h> -#include <time.h> - -void infinitePrint() { - - static int count = 0; - printf("%ld: Count = %d\n", time(NULL), ++count); - sleep(1); -} - -int main() { - - // ------------------sol1.c----------------- - // initialize new sigset - sigset_t, sigemptyset - sigset_t sigset; - sigemptyset(&sigset); - // add SIGINT to sigset - sigaddset - sigaddset(&sigset, SIGINT); - // block SIGINT - sigprocmask - sigprocmask(SIG_BLOCK, &sigset, NULL); - // Do not modify the while loop and infinitePrint() - // ----------------------------------------- - - /* Print infinitely. */ - while (1) infinitePrint(); -}
\ No newline at end of file diff --git a/OLD/csci4061/110920_breakout/zip/sol2.c b/OLD/csci4061/110920_breakout/zip/sol2.c deleted file mode 100644 index 04dad3e..0000000 --- a/OLD/csci4061/110920_breakout/zip/sol2.c +++ /dev/null @@ -1,52 +0,0 @@ -/* -* Recitation Section Number: 9 -* Breakout Number: 6 -* Audrey Hebert (heber169) -* Qiyu Tian (tian0068) -* Mouhari Mouhamed (mouha003) -* Matt Strapp (strap012) -*/ - -#include <stdio.h> -#include <signal.h> -#include <unistd.h> -#include <time.h> - -// Remember the usage of sig_atomic_t in the recitation example -static volatile sig_atomic_t doneflag = 0; - -static void setdoneflag(int signo) { - doneflag = doneflag ^ 1; -} - -void infinitePrint() { - - static int count = 0; - printf("%ld: Count = %d\n", time(NULL), ++count); - sleep(1); -} - -int main() { - - // ------------------sol2.c----------------- - // setup signal handler - sigaction struct, sigemptyset, - struct sigaction act; - sigset_t sigset; - // specify action associated with SIGNT - sigaction() - act.sa_handler = setdoneflag; /* set up signal handler */ - act.sa_flags = 0; - if ((sigemptyset(&act.sa_mask) == -1) || - (sigaction(SIGINT, &act, NULL) == -1)) - { - perror("Failed to set SIGINT handler"); - return 1; - } - // You are free to modify the while loop but not the infinitePrint() - // ----------------------------------------- - - /* Print infinitely. */ - while (1) { - if (!doneflag) - infinitePrint(); - } -}
\ No newline at end of file diff --git a/OLD/csci4061/111620_breakout/program.c b/OLD/csci4061/111620_breakout/program.c deleted file mode 100644 index 52f67a1..0000000 --- a/OLD/csci4061/111620_breakout/program.c +++ /dev/null @@ -1,155 +0,0 @@ - -#include <stdio.h> -#include <stdlib.h> -#include <time.h> -#include <pthread.h> - -#define MATSIZE 5000 - -int mat1[MATSIZE][MATSIZE]; -int mat2[MATSIZE][MATSIZE]; - - -typedef struct argstruct { - int x_start; - int x_end; - int y_start; - int y_end; - int** res_mat; -} args_t; - -int getX_start(int i) { - return (i % 2) * MATSIZE / 2; -} -int getY_start(int i) { - return ((i < 2) ? 0 : 1) * MATSIZE / 2; -} - - -//TODO: Complete this function (to be accessed by a thread) which will -// perform matrix addition on a portion of a matrix, dictated by -// the input parameter 'args' -void * partial_matrix_add(void * args) { - int **dest; - args_t *input = (struct argstruct *) args; // params can be accessed using input pointer - dest = input->res_mat; //can be accessed as dest[][] now - - // Todo: Your code goes here (for reference checkout the pseudo code in the slides) - for (int i=input->x_start; i<input->x_end; i++) { - for (int j=input->y_start; j<input->y_end; j++) { - dest[i][j] = mat1[i][j]*mat2[i][j]; - } - } - return NULL; -} - -int main() { - // to store mulitple dispatcher threads - pthread_t m_threads[4]; - - // to store single default thread - pthread_t s_thread; - - // variable to pass values to multiple thread multiplication - args_t m_args[4]; - - //variable to pass values to single thread muliplication - args_t s_args; - - /** - * initializing matrices for sinlge and multiple matrix multiplication - */ - int i, j, k, c; - struct timeval t_multi_start, t_multi_end, t_single_start, t_single_end; - int ** res_mat_multi = malloc(MATSIZE * sizeof(int *)); - int ** res_mat_single = malloc(MATSIZE * sizeof(int *)); - for(i = 0; i < MATSIZE; i++) { - res_mat_multi[i] = malloc(MATSIZE * sizeof(int)); - res_mat_single[i] = malloc(MATSIZE * sizeof(int)); - } - - //Populate base matrices with random integers - //Initialize result matrices with -1 - for(j = 0; j < MATSIZE; j++) { - for(k = 0; k < MATSIZE; k++) { - mat1[j][k] = rand() % 1000 + 1; - mat2[j][k] = rand() % 1000 + 1; - res_mat_multi[j][k] = -1; - res_mat_single[j][k] = -1; - } - } -//Version 1 ************************************************************************** - //Measure time for multiple thread addition - gettimeofday(&t_multi_start, NULL); - - //Todo: create attribute for detached threads - //Create mulitple threads to populate res_mat_multi with the result - // of performing matrix addition mat1 + mat2 - for(i = 0; i < 4; i++) { - - int x_start = getX_start(i); - int y_start = getY_start(i); - int x_end = x_start + MATSIZE/2; - int y_end = y_start + MATSIZE/2; - m_args[i].res_mat = res_mat_multi; - //your code goes here - //Todo:Create m_agrs using x_start, x_end, y_start, y_end, and create detached threads - m_args[i].x_start = x_start; - m_args[i].x_end = x_end; - m_args[i].y_start = y_start; - m_args[i].y_end = y_end; - pthread_attr_t attr; - pthread_attr_init(&attr); - pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); - pthread_create(&m_threads[i], &attr, partial_matrix_add, (void *) &m_args[i]); - } - - gettimeofday(&t_multi_end, NULL); -//Version 2 ************************************************************************* - - //Measure time for single thread addition - gettimeofday(&t_single_start, NULL); - - // Create single thread to populate res_mat_multi with the result - // of performing matrix addition mat1 + mat2 - - int x_start = 0; - int x_end = MATSIZE; - int y_start = 0; - int y_end = MATSIZE; - s_args.res_mat = res_mat_single; - //your code goes here - //Todo: Assign values to s_args using x_start, y_start etc. - s_args.x_start = x_start; - s_args.y_start = y_start; - s_args.x_end = x_end; - s_args.y_end = y_end; - //Todo:Create thread - pthread_create(&s_thread, NULL, partial_matrix_add, (void *) &s_args); - //Todo:join thread - pthread_join(s_thread, NULL); - gettimeofday(&t_single_end, NULL); - -// ********************************************************************************** - //Don't change anything from here - //Test to ensure that both methods produce the same result - c = 0; - for(j = 0; j < MATSIZE; j++) { - for(k = 0; k < MATSIZE; k++) { - if(res_mat_multi[j][k] == res_mat_single[j][k] && res_mat_multi[j][k] != -1) { - c++; - } - } - } - printf("Verification: %d out of %d entries matched.\n", c, MATSIZE * MATSIZE); - //Display time for each version - double time_taken; - time_taken = (t_multi_end.tv_sec - t_multi_start.tv_sec) * 1e6; - time_taken = (time_taken + (t_multi_end.tv_usec - t_multi_start.tv_usec)) * 1e-6; - printf("Time for multiple threads: %f seconds\n", time_taken); - - time_taken = (t_single_end.tv_sec - t_single_start.tv_sec) * 1e6; - time_taken = (time_taken + (t_single_end.tv_usec - t_single_start.tv_usec)) * 1e-6; - printf("Time for single thread: %f seconds\n", time_taken); - return 0; -} diff --git a/OLD/csci4061/112320_breakout/sol-condition_variables.c b/OLD/csci4061/112320_breakout/sol-condition_variables.c deleted file mode 100644 index 86cafb1..0000000 --- a/OLD/csci4061/112320_breakout/sol-condition_variables.c +++ /dev/null @@ -1,128 +0,0 @@ -#define NUM_ARGS 0 - -#include <stdio.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <sys/stat.h> -#include <unistd.h> -#include <fcntl.h> -#include <dirent.h> -#include <string.h> -#include <time.h> -#include <pthread.h> -#include <semaphore.h> -#include <sys/time.h> - -long condTotal = 0; - -struct queue { - - int vals[100]; - int index; //indicates the next available spot -}; - -struct condQueue { - - struct queue* q; - pthread_cond_t* cond; - pthread_mutex_t* mutex; -}; - - - -void insert(struct queue* q, int val) { - - q->vals[q->index] = val; - ++q->index; -} - -int delete(struct queue* q) { - - --q->index; - int val = q->vals[q->index]; - return val; -} - -// TODO: Insert code to use a condition variable. -void *condProducer(void* arg) { - - // Random delay. DO NOT REMOVE! - usleep(rand() % 1000); - - struct condQueue* cq = (struct condQueue*) arg; - - pthread_mutex_lock(cq->mutex); - - // Counter. - static int in = 0; - ++in; - - // Add an element to the queue. - insert(cq->q, in); - - pthread_cond_signal(cq->cond); //to send signal to any waiting consumer - pthread_mutex_unlock(cq->mutex); -} - -// TODO: Insert code to use a condition variable. -void *condConsumer(void* arg) { - - // Random delay. DO NOT REMOVE! - usleep(rand() % 1000); - - struct condQueue* cq = (struct condQueue*) arg; - - pthread_mutex_lock(cq->mutex); - while (cq->q->index < 1) pthread_cond_wait(cq->cond, cq->mutex);//wait if buffer is empty - - // Remove an element from the queue. - condTotal += delete(cq->q); - - pthread_mutex_unlock(cq->mutex); -} - -int main(int argc, char** argv) { - - if (argc != NUM_ARGS + 1) { - - printf("Wrong number of args, expected %d, given %d\n", NUM_ARGS, argc - 1); - exit(1); - } - - // Seed the random generator. - srand(time(NULL)); - - // Create threads. - pthread_t condPool[100]; - - struct timeval start; - gettimeofday(&start, NULL); - - // Create the cond variable controlled task queue. - struct condQueue* cq = (struct condQueue*) malloc(sizeof(struct condQueue)); - cq->q = (struct queue*) malloc(sizeof(struct queue)); - cq->q->index=0; - - // Allocate memory and initialize condition variable and mutex - cq->cond = (pthread_cond_t*) malloc(sizeof(pthread_cond_t)); - cq->mutex = (pthread_mutex_t*) malloc(sizeof(pthread_mutex_t)); - pthread_cond_init(cq->cond, NULL); - pthread_mutex_init(cq->mutex, NULL); - - // Launch them. - for (int i=0; i < 50; ++i) { - - pthread_create(&condPool[i], NULL, condProducer, (void*) cq); //start 50 producer threads - pthread_create(&condPool[50 + i], NULL, condConsumer, (void*) cq); //start 50 consumer threads - } - - for (int i=0; i < 100; ++i) pthread_join(condPool[i], NULL); //wait for all the threads to be finished - - struct timeval end; - gettimeofday(&end, NULL); - - printf("Cond Test: \nTotal of buffer = %ld\n", condTotal); - printf("Time (in us) to run = %ld\n\n", ((end.tv_sec - start.tv_sec) * 1000000) + (end.tv_usec - start.tv_usec)); - - } diff --git a/OLD/csci4061/112320_breakout/sol-semaphore.c b/OLD/csci4061/112320_breakout/sol-semaphore.c deleted file mode 100644 index 4af3a5b..0000000 --- a/OLD/csci4061/112320_breakout/sol-semaphore.c +++ /dev/null @@ -1,128 +0,0 @@ -#define NUM_ARGS 0 - -#include <stdio.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <sys/stat.h> -#include <unistd.h> -#include <fcntl.h> -#include <dirent.h> -#include <string.h> -#include <time.h> -#include <pthread.h> -#include <semaphore.h> -#include<sys/time.h> - -long semTotal = 0; - -struct buffer { - - int vals[100]; - int index; -}; - -struct semBuffer { - - struct buffer* q; - sem_t* psem; - sem_t* csem; - pthread_mutex_t* mutex; -}; - -void insert(struct buffer* q, int val) { - - q->vals[q->index] = val; - ++q->index; -} - -int delete(struct buffer* q) { - - --q->index; - int val = q->vals[q->index]; - return val; -} - -// TODO: Insert code to use a semaphore. -void* semProducer(void* arg) { - - // Random delay. DO NOT REMOVE! - usleep(rand() % 1000); - - struct semBuffer* sq = (struct semBuffer*) arg; - sem_wait(sq->psem); - pthread_mutex_lock(sq->mutex); - - static int in = 0; - ++in; - // Add an element to the queue. - insert(sq->q, in); - - pthread_mutex_unlock(sq->mutex); - sem_post(sq->csem); - -} - -// TODO: Insert code to use a semaphore. -void* semConsumer(void* arg) { - - // Random delay. DO NOT REMOVE! - usleep(rand() % 1000); - - struct semBuffer* sq = (struct semBuffer*) arg; - - sem_wait(sq->csem); - pthread_mutex_lock(sq->mutex); - - // Reove an element from the queue. - semTotal += delete(sq->q); - - pthread_mutex_unlock(sq->mutex); - sem_post(sq->psem); -} - -int main(int argc, char** argv) { - - if (argc != NUM_ARGS + 1) { - - printf("Wrong number of args, expected %d, given %d\n", NUM_ARGS, argc - 1); - exit(1); - } - - // Seed the random generator. - srand(time(NULL)); - - // Create threads. - pthread_t semPool[100]; - - struct timeval start; - gettimeofday(&start, NULL); - - // Create task queue. - struct semBuffer* sq = (struct semBuffer*) malloc(sizeof(struct semBuffer)); - - sq->q = (struct buffer*) malloc(sizeof(struct buffer)); - sq->q->index=0; - sq->psem = (sem_t*) malloc(sizeof(sem_t)); - sq->csem = (sem_t*) malloc(sizeof(sem_t)); - sq->mutex = (pthread_mutex_t*) malloc(sizeof(pthread_mutex_t)); - - // TODO: Initilaize semaphores - sem_init(sq->psem, 0, 50); - sem_init(sq->csem, 0, 0); - - pthread_mutex_init(sq->mutex, NULL); - - for (int i=0; i < 50; ++i) { - - pthread_create(&semPool[i], NULL, semProducer, (void*) sq); - pthread_create(&semPool[50 + i], NULL, semConsumer, (void*) sq); - } - - for (int i=0; i < 100; ++i) pthread_join(semPool[i], NULL); - - struct timeval end; - gettimeofday(&end, NULL); - printf("Sem Test: \nTotal of buffer = %ld\n", semTotal); - printf("Time (in us) to complete = %ld\n", ((end.tv_sec - start.tv_sec) * 1000000) + (end.tv_usec - start.tv_usec)); -} |