88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
#include "EventLoop.h"
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#include "NamedPipe.h"
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#include "AgentAssert.h"
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#include "../Shared/DebugClient.h"
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EventLoop::EventLoop() : m_exiting(false), m_pollInterval(0)
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{
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}
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EventLoop::~EventLoop()
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{
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for (size_t i = 0; i < m_pipes.size(); ++i)
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delete m_pipes[i];
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}
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// Enter the event loop. Runs until the I/O or timeout handler calls exit().
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void EventLoop::run()
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{
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std::vector<HANDLE> waitHandles;
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DWORD lastTime = GetTickCount();
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while (!m_exiting) {
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bool didSomething = false;
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// Attempt to make progress with the pipes.
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waitHandles.clear();
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for (size_t i = 0; i < m_pipes.size(); ++i) {
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if (m_pipes[i]->serviceIo(&waitHandles)) {
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onPipeIo(m_pipes[i]);
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didSomething = true;
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}
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}
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// Call the timeout if enough time has elapsed.
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if (m_pollInterval > 0) {
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int elapsed = GetTickCount() - lastTime;
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if (elapsed >= m_pollInterval) {
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onPollTimeout();
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lastTime = GetTickCount();
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didSomething = true;
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}
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}
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if (didSomething)
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continue;
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// If there's nothing to do, wait.
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DWORD timeout = INFINITE;
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if (m_pollInterval > 0)
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timeout = std::max(0, (int)(lastTime + m_pollInterval - GetTickCount()));
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if (waitHandles.size() == 0) {
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ASSERT(timeout != INFINITE);
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if (timeout > 0)
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Sleep(timeout);
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} else {
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DWORD result = WaitForMultipleObjects(waitHandles.size(),
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waitHandles.data(),
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FALSE,
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timeout);
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ASSERT(result != WAIT_FAILED);
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}
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}
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}
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NamedPipe *EventLoop::createNamedPipe()
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{
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NamedPipe *ret = new NamedPipe();
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m_pipes.push_back(ret);
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return ret;
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}
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void EventLoop::setPollInterval(int ms)
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{
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m_pollInterval = ms;
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}
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void EventLoop::shutdown()
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{
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m_exiting = true;
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}
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void EventLoop::onPollTimeout()
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{
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}
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void EventLoop::onPipeIo(NamedPipe *namedPipe)
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{
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}
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