diff options
Diffstat (limited to 'src/runtime/internal/syscall/syscall_linux.go')
| -rw-r--r-- | src/runtime/internal/syscall/syscall_linux.go | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/runtime/internal/syscall/syscall_linux.go b/src/runtime/internal/syscall/syscall_linux.go index 7f268e8fba..a103d318c4 100644 --- a/src/runtime/internal/syscall/syscall_linux.go +++ b/src/runtime/internal/syscall/syscall_linux.go @@ -6,7 +6,7 @@ package syscall import ( - _ "unsafe" // for go:linkname + "unsafe" ) // TODO(https://go.dev/issue/51087): This package is incomplete and currently @@ -37,3 +37,30 @@ func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr) func syscall_RawSyscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr) { return Syscall6(num, a1, a2, a3, a4, a5, a6) } + +func EpollCreate1(flags int32) (fd int32, errno uintptr) { + r1, _, e := Syscall6(SYS_EPOLL_CREATE1, uintptr(flags), 0, 0, 0, 0, 0) + return int32(r1), e +} + +var _zero uintptr + +func EpollWait(epfd int32, events []EpollEvent, maxev, waitms int32) (n int32, errno uintptr) { + var ev unsafe.Pointer + if len(events) > 0 { + ev = unsafe.Pointer(&events[0]) + } else { + ev = unsafe.Pointer(&_zero) + } + r1, _, e := Syscall6(SYS_EPOLL_PWAIT, uintptr(epfd), uintptr(ev), uintptr(maxev), uintptr(waitms), 0, 0) + return int32(r1), e +} + +func EpollCtl(epfd, op, fd int32, event *EpollEvent) (errno uintptr) { + _, _, e := Syscall6(SYS_EPOLL_CTL, uintptr(epfd), uintptr(op), uintptr(fd), uintptr(unsafe.Pointer(event)), 0, 0) + return e +} + +func CloseOnExec(fd int32) { + Syscall6(SYS_FCNTL, uintptr(fd), F_SETFD, FD_CLOEXEC, 0, 0, 0) +} |
