Initial revision

1 files changed, 82 insertions, 0 deletions

diff --git a/ace/SV_Shared_Memory.cpp b/ace/SV_Shared_Memory.cpp
new file mode 100644
index 00000000000..8cfc1adc2c8
--- /dev/null
+++ b/ace/SV_Shared_Memory.cpp
@@ -0,0 +1,82 @@
+// SV_Shared_Memory.cpp
+// $Id$
+
+#define ACE_BUILD_DLL
+#include "ace/SV_Shared_Memory.h"
+#include "ace/Log_Msg.h"
+
+#if !defined (__ACE_INLINE__)
+#include "ace/SV_Shared_Memory.i"
+#endif /* __ACE_INLINE__ */
+
+ACE_ALLOC_HOOK_DEFINE(ACE_SV_Shared_Memory)
+
+void
+ACE_SV_Shared_Memory::dump (void) const
+{
+  ACE_TRACE ("ACE_SV_Shared_Memory::dump");
+}
+
+// Creates a shared memory segment of SIZE bytes and *does* attach to
+// this segment.
+
+int
+ACE_SV_Shared_Memory::open_and_attach (key_t external_id, 
+				       size_t sz, 
+				       int create,
+				       int perms, 
+				       void *virtual_addr, 
+				       int flags)
+{
+  ACE_TRACE ("ACE_SV_Shared_Memory::open_and_attach");
+  if (this->open (external_id, sz, create, perms) == -1)
+    return -1;
+  else if (this->attach (virtual_addr, flags) == -1)
+    return -1;
+  else
+    return 0;
+}
+
+// Constructor interface to this->open_and_attach () member function.
+
+ACE_SV_Shared_Memory::ACE_SV_Shared_Memory (key_t external_id, 
+					    size_t sz, 
+					    int create, 
+					    int perms, 
+					    void *virtual_addr, 
+					    int flags)
+{
+  ACE_TRACE ("ACE_SV_Shared_Memory::ACE_SV_Shared_Memory");
+  if (this->open_and_attach (external_id, sz, create, 
+			     perms, virtual_addr, flags) == -1)
+    ACE_ERROR ((LM_ERROR, "%p\n", 
+		"ACE_SV_Shared_Memory::ACE_SV_Shared_Memory"));
+}
+
+// The "do nothing" constructor.
+
+ACE_SV_Shared_Memory::ACE_SV_Shared_Memory (void)
+  : segment_ptr_ (0), 
+    internal_id_ (0), 
+    size_ (0)
+{
+  ACE_TRACE ("ACE_SV_Shared_Memory::ACE_SV_Shared_Memory");
+}
+
+// Added this constructor to accept an internal id, the one generated
+// when a server constructs with the key IPC_PRIVATE.  The client can
+// be passed ACE_SV_Shared_Memory::internal_id via a socket and call
+// this construtor to attach the existing segment.  This prevents
+// having to hard-code a key in advance.  Courtesy of Marvin Wolfthal
+// (maw@fsg.com).
+
+ACE_SV_Shared_Memory::ACE_SV_Shared_Memory (ACE_HANDLE int_id,
+					    int flags)
+  : internal_id_ (int_id), 
+    size_ (0)
+{
+  ACE_TRACE ("ACE_SV_Shared_Memory::ACE_SV_Shared_Memory");
+  if (this->attach (0, flags) == -1)
+    ACE_ERROR ((LM_ERROR, "%p\n", 
+		"ACE_SV_Shared_Memory::ACE_SV_Shared_Memory"));
+}