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| author | gVisor bot <gvisor-bot@google.com> | 2020-09-14 18:41:03 +0000 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-09-14 18:41:03 +0000 |
| commit | e3f79dba6beb6b83b5db7e8bba9b59cdb4aa0890 (patch) | |
| tree | 848c369e46e5a93be57a3f2e50a21b4ca68d1191 /pkg/sentry/kernel/fd_table_unsafe.go | |
| parent | 2bec0281c6dcf60e2c34c1046d2f9465446df095 (diff) | |
| parent | 2969b17405d248acbb8a0839fc57ff0a44ec1977 (diff) | |
Merge release-20200907.0-40-g2969b1740 (automated)
Diffstat (limited to 'pkg/sentry/kernel/fd_table_unsafe.go')
| -rw-r--r-- | pkg/sentry/kernel/fd_table_unsafe.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/pkg/sentry/kernel/fd_table_unsafe.go b/pkg/sentry/kernel/fd_table_unsafe.go index 555b14f8e..1c977b60f 100644 --- a/pkg/sentry/kernel/fd_table_unsafe.go +++ b/pkg/sentry/kernel/fd_table_unsafe.go @@ -79,6 +79,13 @@ func (f *FDTable) getAll(fd int32) (*fs.File, *vfs.FileDescription, FDFlags, boo return d.file, d.fileVFS2, d.flags, true } +// CurrentMaxFDs returns the number of file descriptors that may be stored in f +// without reallocation. +func (f *FDTable) CurrentMaxFDs() int { + slice := *(*[]unsafe.Pointer)(atomic.LoadPointer(&f.slice)) + return len(slice) +} + // set sets an entry. // // This handles accounting changes, as well as acquiring and releasing the |