1 files changed, 91 insertions, 0 deletions
diff --git a/ACE/ace/Sample_History.h b/ACE/ace/Sample_History.h
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+++ b/ACE/ace/Sample_History.h
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+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    Sample_History.h
+ *
+ *  $Id$
+ *
+ *  @author Carlos O'Ryan <coryan@uci.edu>
+ */
+//=============================================================================
+
+
+#ifndef ACE_SAMPLE_HISTORY_H
+#define ACE_SAMPLE_HISTORY_H
+#include /**/ "ace/pre.h"
+
+#include /**/ "ace/config-all.h"
+#include "ace/Basic_Types.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+class ACE_Basic_Stats;
+
+/// Save multiple samples in an array
+/**
+ * Save multiple samples (usually latency numbers), into an array, and
+ * later print them in several formats.
+ */
+class ACE_Export ACE_Sample_History
+{
+public:
+  /// Constructor
+  /**
+   * The number of samples is pre-allocated, and cannot changes once
+   * the class is initialized.
+   */
+  ACE_Sample_History (size_t max_samples);
+
+  /// Destructor
+  ~ACE_Sample_History (void);
+
+  /// Record one sample.
+  /**
+   * Return 0 on success, -1 if the sample could not be stored
+   */
+  int sample (ACE_UINT64 value);
+
+  /// Returns the maximum number of samples
+  size_t max_samples (void) const;
+
+  /// Returns the current number of samples
+  size_t sample_count (void) const;
+
+  /// Dump all the samples
+  /**
+   * Prints out all the samples, using @a msg as a prefix for each
+   * message.
+   */
+  void dump_samples (const ACE_TCHAR *msg,
+                     ACE_UINT32 scale_factor) const;
+
+  /// Collect the summary for all the samples
+  void collect_basic_stats (ACE_Basic_Stats &) const;
+
+  /// Get a sample
+  ACE_UINT64 get_sample (size_t i) const;
+
+private:
+  /// The maximum number of samples
+  size_t max_samples_;
+
+  /// The current number of samples
+  size_t sample_count_;
+
+  /// The samples
+  ACE_UINT64 *samples_;
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#if defined (__ACE_INLINE__)
+#include "ace/Sample_History.inl"
+#endif /* __ACE_INLINE__ */
+
+#include /**/ "ace/post.h"
+#endif /* ACE_SAMPLE_HISTORY_H */