ceph/src/test/old/testnewbuffers.cc

   1
   2 #include <list>
   3 #include <iostream>
   4 using namespace std;
   5
   6
   7 #include "include/newbuffer.h"
   8 //#include "include/bufferlist.h"
   9
  10 #include "common/Thread.h"
  11
  12
  13   class Th : public Thread {
  14   public:
  15         bufferlist bl;
  16         explicit Th(bufferlist& o) : bl(o) { }
  17
  18         void *entry() {
  19           //cout << "start" << endl;
  20           // thrash it a bit.
  21           for (int n=0; n<10000; n++) {
  22                 bufferlist bl2;
  23                 unsigned off = rand() % (bl.length() -1);
  24                 unsigned len = 1 + rand() % (bl.length() - off - 1);
  25                 bl2.substr_of(bl, off, len);
  26                 bufferlist bl3;
  27                 bl3.append(bl);
  28                 bl3.append(bl2);
  29                 //cout << bl3 << endl;
  30                 bl2.clear();
  31                 bl3.clear();
  32           }
  33           //cout << "end" << endl;
  34         }
  35   };
  36
  37 int main()
  38 {
  39
  40   bufferptr p1 = buffer::copy("123456",7);
  41   //bufferptr p1 = new buffer("123456",7);
  42   bufferptr p2 = p1;
  43
  44   cout << "p1 is '" << p1.c_str() << "'" << " " << p1 << endl;
  45   cout << "p2 is '" << p2.c_str() << "'" << " " << p2 << endl;
  46
  47   bufferptr p3 = buffer::copy("abcdef",7);
  48   //bufferptr p3 = new buffer("abcdef",7);
  49
  50   cout << "p3 is " << p3.c_str() << " " << p3 << endl;
  51
  52   bufferlist bl;
  53   bl.push_back(p2);
  54   bl.push_back(p1);
  55   bl.push_back(p3);
  56
  57   cout << "bl is " << bl << endl;
  58
  59   bufferlist took;
  60   bl.splice(10,4,&took);
  61
  62   cout << "took out " << took << ", leftover is " << bl << endl;
  63   //cout << "len is " << bl.length() << endl;
  64
  65   bufferlist bl2;
  66   bl2.substr_of(bl, 3, 5);
  67   cout << "bl2 is " << bl2 << endl;
  68
  69
  70   cout << "bl before " << bl << endl;
  71
  72   list<Th*> ls;
  73   for (int t=0; t<40; t++) {
  74         Th *t = new Th(bl);
  75         cout << "create" << endl;
  76         t->create();
  77         ls.push_back(t);
  78   }
  79
  80   bl.clear();
  81
  82   while (!ls.empty()) {
  83         cout << "join" << endl;
  84         ls.front()->join();
  85         delete ls.front();
  86         ls.pop_front();
  87   }
  88
  89   cout << "bl after " << bl << endl;
  90
  91 }