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-rw-r--r--ACE/ace/SV_Shared_Memory.cpp88
1 files changed, 88 insertions, 0 deletions
diff --git a/ACE/ace/SV_Shared_Memory.cpp b/ACE/ace/SV_Shared_Memory.cpp
new file mode 100644
index 00000000000..9e5206b54bb
--- /dev/null
+++ b/ACE/ace/SV_Shared_Memory.cpp
@@ -0,0 +1,88 @@
+// $Id$
+
+#include "ace/SV_Shared_Memory.h"
+#include "ace/Log_Msg.h"
+
+#if !defined (__ACE_INLINE__)
+#include "ace/SV_Shared_Memory.inl"
+#endif /* __ACE_INLINE__ */
+
+
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+ACE_ALLOC_HOOK_DEFINE(ACE_SV_Shared_Memory)
+
+void
+ACE_SV_Shared_Memory::dump (void) const
+{
+#if defined (ACE_HAS_DUMP)
+ ACE_TRACE ("ACE_SV_Shared_Memory::dump");
+#endif /* ACE_HAS_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, ACE_TEXT ("%p\n"),
+ ACE_TEXT ("ACE_SV_Shared_Memory::ACE_SV_Shared_Memory")));
+}
+
+// The "do nothing" constructor.
+
+ACE_SV_Shared_Memory::ACE_SV_Shared_Memory (void)
+ : internal_id_ (0),
+ size_ (0),
+ segment_ptr_ (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, ACE_TEXT ("%p\n"),
+ ACE_TEXT ("ACE_SV_Shared_Memory::ACE_SV_Shared_Memory")));
+}
+
+ACE_END_VERSIONED_NAMESPACE_DECL