4#ifndef QFUTEX_LINUX_P_H
5#define QFUTEX_LINUX_P_H
18#include <private/qcore_unix_p.h>
22#include <asm/unistd.h>
25#include <linux/futex.h>
26#include <sys/syscall.h>
31# define __NR_futex __NR_futex_time64
34#define QT_ALWAYS_USE_FUTEX
42 int *addr2 =
nullptr,
int val3 = 0) noexcept
56 int *int_addr =
reinterpret_cast<int *
>(
ptr);
57#if Q_BYTE_ORDER == Q_BIG_ENDIAN
58 if (
sizeof(T) >
sizeof(int))
64template <
typename Atomic>
65inline void futexWait(Atomic &futex,
typename Atomic::Type expectedValue)
69template <
typename Atomic>
75 nullptr, FUTEX_BITSET_MATCH_ANY);
76 return r == 0 || errno != ETIMEDOUT;
86template <
typename Atomic>
inline
qint64 deadline() const noexcept Q_DECL_PURE_FUNCTION
Returns the absolute time point for the deadline stored in QDeadlineTimer object, calculated in milli...
Combined button and popup list for selecting options.
void futexWakeOp(Atomic &futex1, int wake1, int wake2, Atomic &futex2, quint32 op)
void futexWait(Atomic &futex, typename Atomic::Type expectedValue)
void futexWakeAll(Atomic &futex)
constexpr bool futexAvailable()
int _q_futex(int *addr, int op, int val, quintptr val2=0, int *addr2=nullptr, int val3=0) noexcept
void futexWakeOne(Atomic &futex)
void futexRelease(void *, void *=nullptr)
void futexAcquire(void *, void *=nullptr)
timespec durationToTimespec(std::chrono::nanoseconds timeout) noexcept
static ControlElement< T > * ptr(QWidget *widget)
GLbitfield GLuint64 timeout
[4]
QDeadlineTimer deadline(30s)