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1 | #include "stdafx.h" | |
2 | #include <iostream> | |
3 | #include <pthread.h> | |
4 | #include <stdio.h> | |
5 | #include <stdlib.h> | |
6 | #include <string.h> | |
7 | ||
8 | using namespace std; | |
9 | ||
10 | int suma; | |
11 | const int NUM_OF_THREADS = 7; | |
12 | ||
13 | pthread_mutex_t myMutex = PTHREAD_MUTEX_INITIALIZER; | |
14 | pthread_cond_t cond = PTHREAD_COND_INITIALIZER; | |
15 | ||
16 | void* sumuj(void* arg) | |
17 | { | |
18 | pthread_mutex_lock(&myMutex); | |
19 | int* przedzial = (int*)arg; | |
20 | //cout<<przedzial[0]<<endl<<przedzial[1]<<endl<<endl; | |
21 | for(int i=przedzial[0]; i <przedzial[1]; i++) | |
22 | { | |
23 | suma = suma + i; | |
24 | } | |
25 | pthread_mutex_unlock(&myMutex); | |
26 | ||
27 | return arg; | |
28 | } | |
29 | ||
30 | void rownolegle() | |
31 | { | |
32 | pthread_t threads[NUM_OF_THREADS]; | |
33 | int ids[NUM_OF_THREADS]; | |
34 | int przedzial[NUM_OF_THREADS+1]; | |
35 | ||
36 | for(int i = 0; i<NUM_OF_THREADS; i++) | |
37 | { | |
38 | przedzial[i] = i*(2012/NUM_OF_THREADS); | |
39 | } | |
40 | przedzial[NUM_OF_THREADS] = 2012; | |
41 | ||
42 | for(int i = 0; i<NUM_OF_THREADS; i++) | |
43 | { | |
44 | ids[i] = pthread_create(&threads[i], NULL, sumuj, (void*)&przedzial[i]); | |
45 | } | |
46 | ||
47 | for(int i = 0; i<NUM_OF_THREADS; i++) | |
48 | { | |
49 | ids[i] = pthread_join(threads[i], NULL); | |
50 | } | |
51 | ||
52 | cout<<"ROWNOLEGLE - \tsuma:\t"<<suma<<endl; | |
53 | } | |
54 | ||
55 | void nieRownolegle() | |
56 | { | |
57 | suma = 0; | |
58 | for(int i=0; i <2012; i++) | |
59 | { | |
60 | suma = suma + i; | |
61 | } | |
62 | cout<<"NIEROWNOLEGLE -\tsuma:\t"<<suma<<endl; | |
63 | } | |
64 | ||
65 | int main() | |
66 | { | |
67 | rownolegle(); | |
68 | ||
69 | nieRownolegle(); | |
70 | ||
71 | system("pause"); | |
72 | } |