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authorLibravatar dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>2025-04-07 11:04:56 +0100
committerLibravatar GitHub <noreply@github.com>2025-04-07 11:04:56 +0100
commit920e20c2d2cff73d6dbdba108e19bc50261d3003 (patch)
tree79e302bd4102247a3f1b870120a2575d4f51a8a1 /vendor/golang.org/x/sys/unix/syscall_darwin.go
parent[chore]: Bump codeberg.org/gruf/go-mutexes from 1.5.1 to 1.5.2 (#3976) (diff)
downloadgotosocial-920e20c2d2cff73d6dbdba108e19bc50261d3003.tar.xz
[chore]: Bump golang.org/x/crypto from 0.36.0 to 0.37.0 (#3975)
Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.36.0 to 0.37.0. - [Commits](https://github.com/golang/crypto/compare/v0.36.0...v0.37.0) --- updated-dependencies: - dependency-name: golang.org/x/crypto dependency-version: 0.37.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_darwin.go')
-rw-r--r--vendor/golang.org/x/sys/unix/syscall_darwin.go149
1 files changed, 148 insertions, 1 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_darwin.go b/vendor/golang.org/x/sys/unix/syscall_darwin.go
index 099867dee..798f61ad3 100644
--- a/vendor/golang.org/x/sys/unix/syscall_darwin.go
+++ b/vendor/golang.org/x/sys/unix/syscall_darwin.go
@@ -602,7 +602,150 @@ func Connectx(fd int, srcIf uint32, srcAddr, dstAddr Sockaddr, associd SaeAssocI
return
}
-//sys connectx(fd int, endpoints *SaEndpoints, associd SaeAssocID, flags uint32, iov []Iovec, n *uintptr, connid *SaeConnID) (err error)
+// sys connectx(fd int, endpoints *SaEndpoints, associd SaeAssocID, flags uint32, iov []Iovec, n *uintptr, connid *SaeConnID) (err error)
+const minIovec = 8
+
+func Readv(fd int, iovs [][]byte) (n int, err error) {
+ if !darwinKernelVersionMin(11, 0, 0) {
+ return 0, ENOSYS
+ }
+
+ iovecs := make([]Iovec, 0, minIovec)
+ iovecs = appendBytes(iovecs, iovs)
+ n, err = readv(fd, iovecs)
+ readvRacedetect(iovecs, n, err)
+ return n, err
+}
+
+func Preadv(fd int, iovs [][]byte, offset int64) (n int, err error) {
+ if !darwinKernelVersionMin(11, 0, 0) {
+ return 0, ENOSYS
+ }
+ iovecs := make([]Iovec, 0, minIovec)
+ iovecs = appendBytes(iovecs, iovs)
+ n, err = preadv(fd, iovecs, offset)
+ readvRacedetect(iovecs, n, err)
+ return n, err
+}
+
+func Writev(fd int, iovs [][]byte) (n int, err error) {
+ if !darwinKernelVersionMin(11, 0, 0) {
+ return 0, ENOSYS
+ }
+
+ iovecs := make([]Iovec, 0, minIovec)
+ iovecs = appendBytes(iovecs, iovs)
+ if raceenabled {
+ raceReleaseMerge(unsafe.Pointer(&ioSync))
+ }
+ n, err = writev(fd, iovecs)
+ writevRacedetect(iovecs, n)
+ return n, err
+}
+
+func Pwritev(fd int, iovs [][]byte, offset int64) (n int, err error) {
+ if !darwinKernelVersionMin(11, 0, 0) {
+ return 0, ENOSYS
+ }
+
+ iovecs := make([]Iovec, 0, minIovec)
+ iovecs = appendBytes(iovecs, iovs)
+ if raceenabled {
+ raceReleaseMerge(unsafe.Pointer(&ioSync))
+ }
+ n, err = pwritev(fd, iovecs, offset)
+ writevRacedetect(iovecs, n)
+ return n, err
+}
+
+func appendBytes(vecs []Iovec, bs [][]byte) []Iovec {
+ for _, b := range bs {
+ var v Iovec
+ v.SetLen(len(b))
+ if len(b) > 0 {
+ v.Base = &b[0]
+ } else {
+ v.Base = (*byte)(unsafe.Pointer(&_zero))
+ }
+ vecs = append(vecs, v)
+ }
+ return vecs
+}
+
+func writevRacedetect(iovecs []Iovec, n int) {
+ if !raceenabled {
+ return
+ }
+ for i := 0; n > 0 && i < len(iovecs); i++ {
+ m := int(iovecs[i].Len)
+ if m > n {
+ m = n
+ }
+ n -= m
+ if m > 0 {
+ raceReadRange(unsafe.Pointer(iovecs[i].Base), m)
+ }
+ }
+}
+
+func readvRacedetect(iovecs []Iovec, n int, err error) {
+ if !raceenabled {
+ return
+ }
+ for i := 0; n > 0 && i < len(iovecs); i++ {
+ m := int(iovecs[i].Len)
+ if m > n {
+ m = n
+ }
+ n -= m
+ if m > 0 {
+ raceWriteRange(unsafe.Pointer(iovecs[i].Base), m)
+ }
+ }
+ if err == nil {
+ raceAcquire(unsafe.Pointer(&ioSync))
+ }
+}
+
+func darwinMajorMinPatch() (maj, min, patch int, err error) {
+ var un Utsname
+ err = Uname(&un)
+ if err != nil {
+ return
+ }
+
+ var mmp [3]int
+ c := 0
+Loop:
+ for _, b := range un.Release[:] {
+ switch {
+ case b >= '0' && b <= '9':
+ mmp[c] = 10*mmp[c] + int(b-'0')
+ case b == '.':
+ c++
+ if c > 2 {
+ return 0, 0, 0, ENOTSUP
+ }
+ case b == 0:
+ break Loop
+ default:
+ return 0, 0, 0, ENOTSUP
+ }
+ }
+ if c != 2 {
+ return 0, 0, 0, ENOTSUP
+ }
+ return mmp[0], mmp[1], mmp[2], nil
+}
+
+func darwinKernelVersionMin(maj, min, patch int) bool {
+ actualMaj, actualMin, actualPatch, err := darwinMajorMinPatch()
+ if err != nil {
+ return false
+ }
+ return actualMaj > maj || actualMaj == maj && (actualMin > min || actualMin == min && actualPatch >= patch)
+}
+
//sys sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error)
//sys shmat(id int, addr uintptr, flag int) (ret uintptr, err error)
@@ -705,3 +848,7 @@ func Connectx(fd int, srcIf uint32, srcAddr, dstAddr Sockaddr, associd SaeAssocI
//sys write(fd int, p []byte) (n int, err error)
//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
//sys munmap(addr uintptr, length uintptr) (err error)
+//sys readv(fd int, iovecs []Iovec) (n int, err error)
+//sys preadv(fd int, iovecs []Iovec, offset int64) (n int, err error)
+//sys writev(fd int, iovecs []Iovec) (n int, err error)
+//sys pwritev(fd int, iovecs []Iovec, offset int64) (n int, err error)