LF MPMC queue improvements

Small improvements of the LF MPMC queue

Making the LF MPMC queue generic and in a seperate header file

arena.c

@@ -1,6 +1,6 @@
-#include "arena.h"
-#include "base.h"
+#pragma once
 
+#include "arena.h"
 /* ============================================================
    Helper functions
    ============================================================ */
@@ -820,70 +820,3 @@ mem_arena_temp arena_scratch_get(mem_arena **conflicts, u32 num_conflicts) {
 }
 
 void arena_scratch_release(mem_arena_temp scratch) { arena_temp_end(scratch); }
-
-#if defined(_WIN32) || defined(_WIN64)
-
-#include <windows.h>
-
-u32 plat_get_pagesize(void) {
-  SYSTEM_INFO sysinfo = {0};
-  GetSystemInfo(&sysinfo);
-
-  return sysinfo.dwPageSize;
-}
-
-void *plat_mem_reserve(u64 size) {
-  return VirtualAlloc(NULL, size, MEM_RESERVE, PAGE_READWRITE);
-}
-
-b32 plat_mem_commit(void *ptr, u64 size) {
-  void *ret = VirtualAlloc(ptr, size, MEM_COMMIT, PAGE_READWRITE);
-  return ret != NULL;
-}
-
-b32 plat_mem_decommit(void *ptr, u64 size) {
-  return VirtualFree(ptr, size, MEM_DECOMMIT);
-}
-
-b32 plat_mem_release(void *ptr, u64 size) {
-  return VirtualFree(ptr, size, MEM_RELEASE);
-}
-
-#elif defined(__linux__)
-
-#ifndef _DEFAULT_SOURCE
-#define _DEFAULT_SOURCE
-#endif
-
-#include <sys/mman.h>
-#include <unistd.h>
-
-u32 plat_get_pagesize(void) { return (u32)sysconf(_SC_PAGESIZE); }
-
-void *plat_mem_reserve(u64 size) {
-  void *out = mmap(NULL, size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-  if (out == MAP_FAILED) {
-    return NULL;
-  }
-  return out;
-}
-
-b32 plat_mem_commit(void *ptr, u64 size) {
-  i32 ret = mprotect(ptr, size, PROT_READ | PROT_WRITE);
-  return ret == 0;
-}
-
-b32 plat_mem_decommit(void *ptr, u64 size) {
-  i32 ret = mprotect(ptr, size, PROT_NONE);
-  if (ret != 0)
-    return false;
-  ret = madvise(ptr, size, MADV_DONTNEED);
-  return ret == 0;
-}
-
-b32 plat_mem_release(void *ptr, u64 size) {
-  i32 ret = munmap(ptr, size);
-  return ret == 0;
-}
-
-#endif