1 files changed, 96 insertions, 0 deletions
diff --git a/winsup/cygwin/local_includes/cygserver_shm.h b/winsup/cygwin/local_includes/cygserver_shm.h
new file mode 100644
index 000000000..80bbf84f0
--- /dev/null
+++ b/winsup/cygwin/local_includes/cygserver_shm.h
@@ -0,0 +1,96 @@
+/* cygserver_shm.h: Single unix specification IPC interface for Cygwin.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef __CYGSERVER_SHM_H__
+#define __CYGSERVER_SHM_H__
+
+#include <sys/types.h>
+#include <sys/sysproto.h>
+#ifndef _KERNEL
+#define _KERNEL 1
+#endif
+#include <cygwin/shm.h>
+
+#include "cygserver.h"
+#include "cygserver_ipc.h"
+
+#ifndef __INSIDE_CYGWIN__
+class transport_layer_base;
+class process_cache;
+#endif
+
+class client_request_shm : public client_request
+{
+  friend class client_request;
+
+public:
+  enum shmop_t
+    {
+      SHMOP_shmat,
+      SHMOP_shmctl,
+      SHMOP_shmdt,
+      SHMOP_shmget,
+      SHMOP_shmfork	/* Called on fixup_after_fork */
+    };
+
+private:
+  union
+  {
+    struct
+    {
+      shmop_t shmop;
+      proc ipcblk;
+      struct shmat_args  atargs;
+      struct shmctl_args ctlargs;
+      struct shmdt_args  dtargs;
+      struct shmget_args getargs;
+      struct proc        forkargs;
+    } in;
+
+    struct {
+      union {
+	int ret;
+	vm_offset_t ptr;
+      };
+      vm_object_t obj;
+    } out;
+  } _parameters;
+
+#ifndef __INSIDE_CYGWIN__
+  client_request_shm ();
+  virtual void serve (transport_layer_base *, process_cache *);
+#endif
+
+public:
+
+#ifdef __INSIDE_CYGWIN__
+  client_request_shm (int, const void *, int);		// shmat
+  client_request_shm (int, int, struct shmid_ds *);	// shmctl
+  client_request_shm (const void *);			// shmdt
+  client_request_shm (key_t, size_t, int);		// shmget
+  client_request_shm (proc *);				// shmfork
+#endif
+
+  int retval () const { return msglen () ? _parameters.out.ret : -1; }
+  void *ptrval () const { return (void *)_parameters.out.ptr; }
+  vm_object_t objval () const { return _parameters.out.obj; }
+};
+
+#ifndef __INSIDE_CYGWIN__
+void shminit ();
+int shmunload ();
+void shmexit_myhook (struct vmspace *vm);
+int cygwin_shmfork_myhook (struct thread *, struct proc *);
+
+int shmat (struct thread *, struct shmat_args *);
+int shmctl (struct thread *, struct shmctl_args *);
+int shmdt (struct thread *, struct shmdt_args *);
+int shmget (struct thread *, struct shmget_args *);
+#endif
+
+#endif /* __CYGSERVER_SHM_H__ */