From e8b1808eaf87a49e4c34ebbfb66854baa627418c Mon Sep 17 00:00:00 2001
From: Tucker Evans <tuckerevans24@gmail.com>
Date: Mon, 18 Feb 2019 07:35:54 -0500
Subject: Moves assignments to given course folder.

---
 sync/sync.c | 118 ------------------------------------------------------------
 1 file changed, 118 deletions(-)
 delete mode 100644 sync/sync.c

(limited to 'sync/sync.c')

diff --git a/sync/sync.c b/sync/sync.c
deleted file mode 100644
index 23d6ba1..0000000
--- a/sync/sync.c
+++ /dev/null
@@ -1,118 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/ipc.h>
-#include <sys/sem.h>
-#include <sys/shm.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#define NSEM 3
-
-union semun {
-	int val;
-	struct semid_ds *buf;
-	ushort *array;
-};
-
-
-int shmid, semid;
-
-void quit(signum)
-int signum;
-{
-	shmctl(shmid, IPC_RMID, NULL);
-	semctl(semid, IPC_RMID, 0);
-}
-
-
-int main(argc, argv)
-int argc;
-char **argv;
-{
-	int i, pid, n_read, n_write, w;
-	char *mem, **arg_r, **arg_w;
-	union semun semarg;
-
-	if (argc < 2) {
-		printf("usage: sync [number readers] [number writers]\n");
-		exit(1);
-	}
-	n_read = atoi(argv[1]);
-	n_write = atoi(argv[2]);
-
-	if ((shmid = shmget(52, 1<<14, IPC_CREAT | 0666)) == -1){
-		perror("shmget: shmget failed");
-		exit(1);
-	}
-
-	if ((mem = shmat(shmid, NULL, 0)) == (char *) -1) {
-		perror("shmat");
-		exit(1);
-	}
-printf("Sshmid: %x\n", shmid);
-	signal(SIGQUIT, quit);
-
-	for (i = 0; i < 1<<14; i++) {
-		*(mem + i) = 0x30;
-	}
-
-	if ((semid = semget(shmid, NSEM, 0666 | IPC_CREAT)) == -1) {
-		perror("Ssemget: ");
-		exit(1);
-	}
-
-	semarg.val = 1;
-	for (i = 0; i < NSEM; i++) {
-		if ((semctl(semid, i, SETVAL, semarg)) == -1) {
-			perror("semctl: ");
-			exit(1);
-		}
-	}
-
-
-	arg_r = malloc(sizeof(char*) * 3);
-	arg_w = malloc(sizeof(char*) * 3);
-	*arg_r = malloc(sizeof(char) * 10);
-	*arg_w = malloc(sizeof(char) * 10);
-
-	*(arg_r + 1) = malloc(sizeof(char) * 50);
-	*(arg_w + 1) = malloc(sizeof(char) * 50);
-
-	*arg_r = "reader";
-	*arg_w = "writer";
-
-	*(arg_r + 2) = NULL;
-	*(arg_w + 2) = NULL;
-
-	for (i = 0; i < n_read; i++){
-		sprintf(*(arg_r + 1), "%d", i);
-		if (pid = fork()) {
-			/* printf("starting reader %d...\n", i); */
-		} else {
-			int ret = execv("./reader", arg_r);
-			printf("exec retern %d", ret);
-		}
-	}
-
-	for (i = 0; i < n_write; i++) {
-		sprintf(*(arg_w + 1), "%d", i);
-		if (pid = fork()) {
-			/* printf("starting writer %d...\n", i); */
-		} else {
-			execvp("./writer", arg_w);
-		}
-		
-	}
-
-	shmdt(mem);
-printf("sync done...\n");
-/* TODO
- * why is this returning 8
- */
-	for (i = 0; i < (n_write + n_read); i++) {
-		wait(&w);
-		printf("\nReturned with code:%d\n", WEXITSTATUS(w));
-	}
-	quit();
-}
-- 
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