Changeset 6d611fb for src/Common

Timestamp:

May 3, 2018, 5:02:05 PM (7 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, with_gc

Children:

01690b7

Parents:

c9d5c4f

Message:

Implemented heap stats backend

Location:

src/Common

Files:

• Heap.cc (modified) (1 diff)
• Heap.h (modified) (1 diff)

src/Common/Heap.cc

@@ -14 +14 @@
 //
 
-namespace HeapStats{
-  void newPass( const char * const name ) {}
-  void printStats() {}
+#include <cstddef>
+#include <cassert>
+#include <iomanip>
+#include <iostream>
+
+namespace HeapStats {
+        #if !defined( WITH_HEAP_STATISTICS )
+                void newPass( const char * const ) {}
+
+                void printStats() {}
+        #else
+                struct StatBlock {
+                        const char * name = nullptr;
+                        size_t mallocs    = 0;
+                        size_t frees      = 0;
+                };
+
+                StatBlock    passes[100];
+                const size_t passes_size = sizeof(passes) / sizeof(passes[0]);
+                size_t       passes_cnt = 0;
+
+                void newPass( const char * const name ) {
+                        passes[passes_cnt].name    = name;
+                        passes[passes_cnt].mallocs = 0;
+                        passes[passes_cnt].frees   = 0;
+                        passes_cnt++;
+
+                        assertf(passes_cnt < passes_size, "Too many passes for HeapStats, increase the size of the array in Heap.h");
+                }
+
+                void printStats() {
+                        std::cerr << "Heap usage statistic:" << std::endl;
+                        std::cerr << "Pass                 | Malloc Count |   Free Count" << std::endl;
+                        for(size_t i = 0; i < passes_cnt; i++) {
+                                std::cerr << std::setw(20) << passes[i].name    << " | ";
+                                std::cerr << std::setw(12) << passes[i].mallocs << " | ";
+                                std::cerr << std::setw(12) << passes[i].frees   << "\n";
+                        }
+                }
+        #endif
 }
 

src/Common/Heap.h

@@ -17 +17 @@
 
 namespace HeapStats {
-  void newPass( const char * const name );
-  void printStats();
+        void newPass( const char * const name );
+        void printStats();
 }