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31695c4ff7
* Haiku build 1st attempt * fix load on Haiku * Removed debugging flags * Added a couple ifndef
142 lines
2.8 KiB
C++
142 lines
2.8 KiB
C++
#include "event.h"
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#include "assert.h"
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#if defined(WIN32)
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#include <malloc.h>
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#include "windows_headers.h"
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#elif defined(__linux__) || defined(__APPLE__) || defined(__HAIKU__)
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#include <fcntl.h>
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#include <poll.h>
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#include <unistd.h>
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#ifdef __APPLE__
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#include <stdlib.h>
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#else
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#include <malloc.h>
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#endif
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#endif
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namespace Common {
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#if defined(WIN32)
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Event::Event(bool auto_reset /* = false */)
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{
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m_event_handle = reinterpret_cast<void*>(CreateEvent(nullptr, auto_reset ? FALSE : TRUE, FALSE, nullptr));
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Assert(m_event_handle != nullptr);
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}
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Event::~Event()
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{
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CloseHandle(reinterpret_cast<HANDLE>(m_event_handle));
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}
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void Event::Signal()
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{
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SetEvent(reinterpret_cast<HANDLE>(m_event_handle));
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}
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void Event::Wait()
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{
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WaitForSingleObject(reinterpret_cast<HANDLE>(m_event_handle), INFINITE);
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}
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bool Event::TryWait(u32 timeout_in_ms)
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{
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return (WaitForSingleObject(reinterpret_cast<HANDLE>(m_event_handle), timeout_in_ms) == WAIT_OBJECT_0);
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}
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void Event::Reset()
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{
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ResetEvent(reinterpret_cast<HANDLE>(m_event_handle));
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}
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void Event::WaitForMultiple(Event** events, u32 num_events)
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{
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DebugAssert(num_events > 0);
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HANDLE* event_handles = (HANDLE*)alloca(sizeof(HANDLE) * num_events);
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for (u32 i = 0; i < num_events; i++)
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event_handles[i] = reinterpret_cast<HANDLE>(events[i]->m_event_handle);
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WaitForMultipleObjects(num_events, event_handles, TRUE, INFINITE);
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}
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#elif defined(__linux__) || defined(__APPLE__) || defined(__HAIKU__)
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Event::Event(bool auto_reset /*= false*/) : m_auto_reset(auto_reset)
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{
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m_pipe_fds[0] = m_pipe_fds[1] = -1;
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#if defined(__linux__)
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pipe2(m_pipe_fds, O_NONBLOCK);
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#else
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pipe(m_pipe_fds);
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fcntl(m_pipe_fds[0], F_SETFL, fcntl(m_pipe_fds[0], F_GETFL) | O_NONBLOCK);
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fcntl(m_pipe_fds[1], F_SETFL, fcntl(m_pipe_fds[1], F_GETFL) | O_NONBLOCK);
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#endif
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Assert(m_pipe_fds[0] >= 0 && m_pipe_fds[1] >= 0);
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}
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Event::~Event()
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{
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close(m_pipe_fds[0]);
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close(m_pipe_fds[1]);
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}
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void Event::Signal()
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{
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char buf[1] = {0};
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write(m_pipe_fds[1], buf, sizeof(buf));
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}
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void Event::Wait()
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{
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pollfd pd = {};
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pd.fd = m_pipe_fds[0];
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pd.events = POLLRDNORM;
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poll(&pd, 1, -1);
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if (m_auto_reset)
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Reset();
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}
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bool Event::TryWait(u32 timeout_in_ms)
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{
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pollfd pd;
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pd.fd = m_pipe_fds[0];
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pd.events = POLLRDNORM;
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if (poll(&pd, 1, timeout_in_ms) == 0)
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return false;
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if (m_auto_reset)
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Reset();
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return true;
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}
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void Event::Reset()
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{
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char buf[1];
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while (read(m_pipe_fds[0], buf, sizeof(buf)) > 0)
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;
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}
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void Event::WaitForMultiple(Event** events, u32 num_events)
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{
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DebugAssert(num_events > 0);
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pollfd pd = {};
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pd.events = POLLRDNORM;
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for (u32 i = 0; i < num_events; i++)
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{
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pd.fd = events[i]->m_pipe_fds[0];
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poll(&pd, 1, -1);
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if (events[i]->m_auto_reset)
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events[i]->Reset();
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}
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}
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#endif
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} // namespace Common
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