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New Async wrapper.

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XMRig 2020-10-21 08:09:44 +07:00
parent 6860450147
commit 87b4d97798
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GPG key ID: 446A53638BE94409
7 changed files with 157 additions and 37 deletions
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63
src/base/io/Async.cpp
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@ -19,9 +19,12 @@
*/
#include "base/io/Async.h"
#include "base/kernel/interfaces/IAsyncListener.h"
#include "base/tools/Handle.h"
#if defined(XMRIG_UV_PERFORMANCE_BUG)
// since 2019.05.16, Version 1.29.0 (Stable) https://github.com/xmrig/xmrig/pull/1889
#if (UV_VERSION_MAJOR >= 1) && (UV_VERSION_MINOR >= 29) && defined(__linux__)
#include <sys/eventfd.h>
#include <sys/poll.h>
#include <unistd.h>
@ -31,16 +34,28 @@
namespace xmrig {
struct uv_async_t: uv_poll_t
{
using uv_async_cb = void (*)(uv_async_t *);
~uv_async_t();
int m_fd = -1;
uv_async_cb m_cb = nullptr;
};
using uv_async_cb = uv_async_t::uv_async_cb;
uv_async_t::~uv_async_t()
{
close(m_fd);
}
static void on_schedule(uv_poll_t *handle, int status, int events)
static void on_schedule(uv_poll_t *handle, int, int)
{
static uint64_t val;
uv_async_t *async = reinterpret_cast<uv_async_t *>(handle);
auto async = reinterpret_cast<uv_async_t *>(handle);
for (;;) {
int r = read(async->m_fd, &val, sizeof(val));
@ -64,7 +79,7 @@ static void on_schedule(uv_poll_t *handle, int status, int events)
}
int uv_async_init(uv_loop_t *loop, uv_async_t *async, uv_async_cb cb)
static int uv_async_init(uv_loop_t *loop, uv_async_t *async, uv_async_cb cb)
{
int fd = eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK);
if (fd < 0) {
@ -78,7 +93,7 @@ int uv_async_init(uv_loop_t *loop, uv_async_t *async, uv_async_cb cb)
}
int uv_async_send(uv_async_t *async)
static int uv_async_send(uv_async_t *async)
{
static const uint64_t val = 1;
int r;
@ -96,3 +111,41 @@ int uv_async_send(uv_async_t *async)
} // namespace xmrig
#endif
namespace xmrig {
class AsyncPrivate
{
public:
IAsyncListener *listener = nullptr;
uv_async_t *async = nullptr;
};
} // namespace xmrig
xmrig::Async::Async(IAsyncListener *listener) : d_ptr(new AsyncPrivate())
{
d_ptr->listener = listener;
d_ptr->async = new uv_async_t;
d_ptr->async->data = this;
uv_async_init(uv_default_loop(), d_ptr->async, [](uv_async_t *handle) { static_cast<Async *>(handle->data)->d_ptr->listener->onAsync(); });
}
xmrig::Async::~Async()
{
Handle::close(d_ptr->async);
delete d_ptr;
}
void xmrig::Async::send()
{
uv_async_send(d_ptr->async);
}