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1 /*
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2
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3 Copyright (c) 2004 Carl Byington - 510 Software Group, released under
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4 the GPL version 2 or any later version at your choice available at
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5 http://www.fsf.org/licenses/gpl.txt
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6
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7 */
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8
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9 #include <stdio.h>
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10 #include <unistd.h>
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11 #include <pthread.h>
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12 #include <set>
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13
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14 static char* test_version="$Id$";
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15
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16 using namespace std;
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17
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18 struct ltstr {
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19 bool operator()(char* s1, char* s2) const {
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20 return strcmp(s1, s2) < 0;
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21 }
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22 };
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23
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24 typedef set<char *, ltstr> string_set;
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25
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26 static string_set all_strings; // owns all the strings, only modified by the config loader thread
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27
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28 struct stats {
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29 bool stop;
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30 bool running;
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31 int counter;
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32 int errors;
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33 stats();
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34 };
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35 stats::stats() {
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36 stop = false;
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37 running = false;
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38 counter = 0;
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39 errors = 0;
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40 }
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41
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42 ////////////////////////////////////////////////
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43 // helper to discard the strings held by a string_set
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44 //
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45 static void discard(string_set &s);
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46 static void discard(string_set &s) {
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47 for (string_set::iterator i=s.begin(); i!=s.end(); i++) {
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48 free(*i);
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49 }
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50 s.clear();
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51 }
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52
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53 ////////////////////////////////////////////////
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54 // helper to register a string in a string set
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55 //
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56 static char* register_string(string_set &s, char *name);
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57 static char* register_string(string_set &s, char *name) {
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58 string_set::iterator i = s.find(name);
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59 if (i != s.end()) return *i;
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60 char *x = strdup(name);
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61 s.insert(x);
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62 return x;
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63 }
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64
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65
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66 ////////////////////////////////////////////////
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67 // thread tester
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68 //
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69 static void* tester(void *arg);
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70 static void* tester(void *arg) {
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71 stats &st = *((stats *)arg);
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72 st.running = true;
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73 while (!st.stop) {
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74 const int LIMIT = 1000;
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75 string_set *mine = new string_set;
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76 string_set &me = *mine;
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77 for (int i=0; i<LIMIT; i++) {
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78 char buf[100];
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79 snprintf(buf, sizeof(buf), "this is string %d", i);
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80 register_string(me, buf);
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81 }
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82 for (int i=0; i<LIMIT; i+=5) {
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83 char buf[100];
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84 snprintf(buf, sizeof(buf), "this is string %d", i);
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85 string_set::iterator j = me.find(buf);
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86 if (j == me.end()) st.errors++;
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87 }
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88 discard(me);
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89 delete mine;
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90 st.counter++;
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91 }
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92 st.running = false;
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93 return NULL;
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94 }
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95
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96 int main(int argc, char**argv)
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97 {
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98 stats st1;
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99 stats st2;
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100 pthread_t tid;
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101 if (pthread_create(&tid, 0, tester, &st1))
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102 fprintf(stdout, "failed to create test thread");
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103 if (pthread_detach(tid))
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104 fprintf(stdout, "failed to detach test thread");
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105 if (pthread_create(&tid, 0, tester, &st2))
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106 fprintf(stdout, "failed to create test thread");
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107 if (pthread_detach(tid))
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108 fprintf(stdout, "failed to detach test thread");
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109
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110 fprintf(stdout, "tests are running\n");
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111 sleep(60);
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112 st1.stop = true;
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113 st2.stop = true;
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114 while (st1.running || st2.running) {
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115 sleep(1);
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116 }
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117
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118 fprintf(stdout, "counter 1 = %d\n", st1.counter);
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119 fprintf(stdout, "counter 2 = %d\n", st2.counter);
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120 fprintf(stdout, "errors 1 = %d\n", st1.errors);
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121 fprintf(stdout, "errors 2 = %d\n", st2.errors);
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122 return 0;
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123 }
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124
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