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WindowServer: Add a simple CPU usage graph to the global menu bar.

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This is pretty cute and helps me spot when something's chewing up CPU.
This commit is contained in:
Andreas Kling 2019-02-26 02:17:25 +01:00
parent b341cab9cc
commit 2fb3fa7f69
3 changed files with 75 additions and 13 deletions
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18
AK/CircularQueue.h
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@ -5,25 +5,25 @@
namespace AK {
template<typename T, size_t Capacity>
template<typename T, int Capacity>
class CircularQueue {
public:
CircularQueue()
{
for (size_t i = 0; i < Capacity; ++i)
for (int i = 0; i < Capacity; ++i)
m_elements[i] = T();
}
bool is_empty() const { return !m_size; }
size_t size() const { return m_size; }
int size() const { return m_size; }
size_t capacity() const { return Capacity; }
int capacity() const { return Capacity; }
void dump() const
{
kprintf("CircularQueue<%zu>:\n", Capacity);
kprintf(" size: %zu\n", m_size);
for (size_t i = 0; i < Capacity; ++i) {
for (int i = 0; i < Capacity; ++i) {
kprintf(" [%zu] %d %c\n", i, m_elements[i], i == m_head ? '*' : ' ');
}
}
@ -60,9 +60,9 @@ public:
const T& operator*() const { return m_queue.m_elements[m_index]; }
private:
friend class CircularQueue;
ConstIterator(const CircularQueue& queue, const size_t index) : m_queue(queue), m_index(index) { }
ConstIterator(const CircularQueue& queue, const int index) : m_queue(queue), m_index(index) { }
const CircularQueue& m_queue;
size_t m_index { 0 };
int m_index { 0 };
};
ConstIterator begin() const { return ConstIterator(*this, m_head); }
@ -71,8 +71,8 @@ public:
private:
friend class ConstIterator;
T m_elements[Capacity];
size_t m_size { 0 };
size_t m_head { 0 };
int m_size { 0 };
int m_head { 0 };
};
}