stuff

06-MemoryManager/testcases/testmemmgr.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "memory_manager.h"
+
+#define MY_HEAP_SIZE 100
+
+int main()
+{
+	char my_heap[MY_HEAP_SIZE];
+	mmInit(my_heap, MY_HEAP_SIZE);
+	
+	printf("1 -- Available Memory: %d, Fragment Count: %d\n", get_remaining_space(), get_fragment_count());
+	
+	// Allocate 10 bytes
+	//   shouldn't fail
+	char* ptr1 = mymalloc_ff(10);
+	if(ptr1 == NULL) {
+		printf("ptr1 - mymalloc_ff(10) failed\n");
+		exit(EXIT_FAILURE);
+	}
+	strncpy(ptr1, "HELLO", 10);
+	printf("ptr1 is %s\n", ptr1);
+	
+	printf("2 -- Available Memory: %d, Fragment Count: %d\n", get_remaining_space(), get_fragment_count());
+	
+	// Allocate 45 bytes
+	//   shouldn't fail
+	char* ptr2 = mymalloc_wf(45);
+	if(ptr2 == NULL) {
+		printf("ptr2 - mymalloc_ff(45) failed\n");
+		exit(EXIT_FAILURE);
+	}
+	strncpy(ptr2, "GOODBYE", 45);
+	printf("ptr2 is %s\n", ptr2);
+		
+	printf("3 -- Available Memory: %d, Fragment Count: %d\n", get_remaining_space(), get_fragment_count());
+	
+	// Attempt to allocate 50 bytes
+	//   should fail
+	char* ptr3 = mymalloc_bf(50);
+	if(ptr3 == NULL) {
+		printf("ptr3 - mymalloc_bf(50) failed\n");
+	}
+	printf("4 -- Available Memory: %d, Fragment Count: %d\n", get_remaining_space(), get_fragment_count());
+	
+	// Free the first two pointers
+	myfree(ptr1);	
+	myfree(ptr2);
+	printf("5 -- Available Memory: %d, Fragment Count: %d\n", get_remaining_space(), get_fragment_count());
+	
+	printf("Total successful mallocs: %d\n", get_mymalloc_count());
+	
+	// Double free, should cause a segmentation fault
+	//myfree(ptr2);
+	
+	mmDestroy();
+	
+	return 0;
+}