Setup FS structure and set fs to point to struct

src/fuse.c

@@ -51,6 +51,7 @@ void FuseGetArgs(int argc, char* argv[], fuseArgStruct* fuseArgs)
 // Given code for default functionality
 void FuseGivenTest(fuseArgStruct* fuseArgs, char* programPath)
 {
+    FileSystemStruct fileSystem;
     if (!fuseArgs->filefsname)
         FuseUsageError(programPath);
     fuseArgs->fd = open(fuseArgs->fsname, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR);
@@ -74,7 +75,7 @@ void FuseGivenTest(fuseArgStruct* fuseArgs, char* programPath)
             exit(EXIT_FAILURE);
         }
     }
-    MapFS(fuseArgs->fd);
+    MapFS(&fileSystem, fuseArgs->fd);
     if (fuseArgs->newfs)
         FormatFS();
     LoadFS();
@@ -86,7 +87,7 @@ void FuseGivenTest(fuseArgStruct* fuseArgs, char* programPath)
         ExtractFileFromFS(fuseArgs->toExtract);
     if(fuseArgs->list)
         ListFS();
-    UnmapFS();
+    UnmapFS(&fileSystem);
 }
 
 // Initialize entire fuseStruct
@@ -123,3 +124,13 @@ int zerosize(int fd)
         return 1;
     return 0;
 }
+
+// Finds next empty bit in Free Block List
+int FindEmptyBitPosition(int number)
+{
+    for (int i = 0; i < 32; i++)
+        if ((~number & (1 << i)) == (1 << i))
+            return i;
+    return -1;
+}
+

src/fuseactions.c

@@ -4,9 +4,7 @@
 #include <sys/mman.h>
 #include "fuseactions.h"
 
-unsigned char* fs;
-
-void MapFS(int fd)
+void MapFS(FileSystemStruct* fs, int fd)
 {
     fs = mmap(NULL, FSSIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
     if (fs == NULL)
@@ -16,22 +14,22 @@ void MapFS(int fd)
     }
 }
 
-void UnmapFS()
+void UnmapFS(FileSystemStruct* fs)
 {
     munmap(fs, FSSIZE);
 }
 
-void FormatFS()
+void FormatFS(void)
 {
 
 }
 
-void LoadFS()
+void LoadFS(void)
 {
     
 }
 
-void ListFS()
+void ListFS(void)
 {
     
 }