Udp

common/network/webudp/WuArena.cpp

@@ -0,0 +1,26 @@
+#include "WuArena.h"
+#include <assert.h>
+#include <stdlib.h>
+
+void WuArenaInit(WuArena* arena, int32_t capacity) {
+  arena->memory = (uint8_t*)calloc(capacity, 1);
+  arena->length = 0;
+  arena->capacity = capacity;
+}
+
+void* WuArenaAcquire(WuArena* arena, int32_t blockSize) {
+  assert(blockSize > 0);
+  int32_t remain = arena->capacity - arena->length;
+
+  if (remain >= blockSize) {
+    uint8_t* m = arena->memory + arena->length;
+    arena->length += blockSize;
+    return m;
+  }
+
+  return NULL;
+}
+
+void WuArenaReset(WuArena* arena) { arena->length = 0; }
+
+void WuArenaDestroy(WuArena* arena) { free(arena->memory); }