Making the LF MPMC queue generic and isolating it's code in a separate header file

platform.h

@@ -3,6 +3,7 @@
 
 #include "arena.h"
 #include "base.h"
+#include "lf_mpmc.h"
 
 #include "arena.c"
 // ----------------------------- Config -------------------------------------
@@ -44,32 +45,7 @@ static double timer_stop(HiResTimer *t) {
          (double)g_qpc_freq.QuadPart;
 }
 
-// ============================================================
-// Simple lock free MPMC Queue
-// ============================================================
-
-typedef struct {
-  atomic_size_t seq;
-  FileEntry *data;
-  char pad[64 - sizeof(atomic_size_t) - sizeof(FileEntry *)];
-} MPMCSlot;
-
-typedef struct {
-  atomic_size_t head;
-  char pad1[64];
-  atomic_size_t tail;
-  char pad2[64];
-
-  size_t capacity;
-  size_t mask;
-
-  atomic_size_t committed;
-  size_t commit_step;
-  atomic_flag commit_lock;
-
-  MPMCSlot *slots;
-} MPMCQueue;
-
+// MPMC Queue
 static MPMCQueue g_file_queue;
 
 typedef struct {