gitee.com/ks-custle/core-gm@v0.0.0-20230922171213-b83bdd97b62c/net/internal/socket/sys_zos_s390x.go (about)

     1  // Copyright 2020 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package socket
     6  
     7  import (
     8  	"syscall"
     9  	"unsafe"
    10  )
    11  
    12  func syscall_syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno)
    13  func syscall_syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
    14  
    15  func probeProtocolStack() int {
    16  	return 4 // sizeof(int) on GOOS=zos GOARCH=s390x
    17  }
    18  
    19  func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
    20  	l := uint32(len(b))
    21  	_, _, errno := syscall_syscall6(syscall.SYS_GETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0)
    22  	return int(l), errnoErr(errno)
    23  }
    24  
    25  func setsockopt(s uintptr, level, name int, b []byte) error {
    26  	_, _, errno := syscall_syscall6(syscall.SYS_SETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0)
    27  	return errnoErr(errno)
    28  }
    29  
    30  func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
    31  	n, _, errno := syscall_syscall(syscall.SYS___RECVMSG_A, s, uintptr(unsafe.Pointer(h)), uintptr(flags))
    32  	return int(n), errnoErr(errno)
    33  }
    34  
    35  func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
    36  	n, _, errno := syscall_syscall(syscall.SYS___SENDMSG_A, s, uintptr(unsafe.Pointer(h)), uintptr(flags))
    37  	return int(n), errnoErr(errno)
    38  }