Method realloc

core/src/main/java/io/questdb/std/Unsafe.java:410–432

(long address, long oldSize, long newSize, int memoryTag)

    }

    public static long realloc(long address, long oldSize, long newSize, int memoryTag) {
        try {
            assert memoryTag >= MemoryTag.NATIVE_PATH;
            checkAllocLimit(-oldSize + newSize, memoryTag);
            long ptr = UNSAFE.reallocateMemory(address, newSize);
            recordMemAlloc(-oldSize + newSize, memoryTag);
            incrReallocCount();
            return ptr;
        } catch (OutOfMemoryError oom) {
            CairoException e = CairoException.nonCritical().setOutOfMemory(true)
                    .put("sun.misc.Unsafe.reallocateMemory() OutOfMemoryError [RSS_MEM_USED=")
                    .put(getRssMemUsed())
                    .put(", oldSize=")
                    .put(oldSize)
                    .put(", newSize=")
                    .put(newSize)
                    .put(", memoryTag=").put(memoryTag)
                    .put("], original message: ")
                    .put(oom.getMessage());
            System.err.println(e.getFlyweightMessage());
            throw e;
        }
    }

    public static void recordMemAlloc(long size, int memoryTag) {
        assert memoryTag >= 0 && memoryTag < MemoryTag.SIZE;