1 | #include <stdio.h> |
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2 | #include <mwmr.h> |
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3 | |
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4 | #define NMAX 1000 |
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5 | |
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6 | ////////////////////////////////////////////// |
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7 | __attribute__ ((constructor)) void producer() |
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8 | { |
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9 | unsigned int n; |
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10 | unsigned int x; |
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11 | unsigned int tempo; |
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12 | unsigned int val; |
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13 | mwmr_channel_t* mwmr; |
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14 | |
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15 | tty_printf( "*** Starting task producer on processor %d at cycle %d ***\n\n", |
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16 | procid(), proctime() ); |
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17 | |
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18 | // get mwmr channel base address |
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19 | unsigned int ret = mwmr_base( "fifo" , "seg_mwmr" , &mwmr ); |
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20 | |
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21 | if ( ret ) |
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22 | { |
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23 | tty_printf("\n[ERROR] in fifo application / producer task :\n"); |
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24 | tty_printf(" undefined mwmr channel\n"); |
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25 | exit(); |
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26 | } |
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27 | |
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28 | // main loop |
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29 | for( n = 0 ; n < NMAX ; n++ ) |
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30 | { |
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31 | tempo = rand()>>6; |
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32 | val = n; |
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33 | mwmr_write( mwmr, &val, 1 ); |
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34 | for(x = 0 ; x < tempo ; x++) asm volatile ("nop"); |
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35 | tty_printf("transmitted value : %d temporisation = %d\n", val, tempo); |
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36 | } |
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37 | |
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38 | tty_printf("\n*** Completing producer at cycle %d ***\n", proctime()); |
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39 | exit(); |
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40 | |
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41 | } // end producer() |
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42 | |
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43 | ///////////////////////////////////////////// |
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44 | __attribute__ ((constructor)) void consumer() |
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45 | { |
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46 | unsigned int n; |
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47 | unsigned int x; |
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48 | unsigned int tempo; |
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49 | unsigned int val; |
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50 | mwmr_channel_t* mwmr; |
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51 | |
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52 | tty_printf( "*** Starting task consumer on processor %d at cycle %d ***\n\n", |
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53 | procid(), proctime() ); |
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54 | |
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55 | // get mwmr channel base address |
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56 | unsigned int ret = mwmr_base( "fifo" , "seg_mwmr" , &mwmr ); |
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57 | |
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58 | if ( ret ) |
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59 | { |
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60 | tty_printf("\n[ERROR] in fifo application / consumer task :\n"); |
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61 | tty_printf(" undefined mwmr channel\n"); |
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62 | exit(); |
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63 | } |
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64 | |
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65 | // main loop |
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66 | for( n = 0 ; n < NMAX ; n++ ) |
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67 | { |
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68 | tempo = rand()>>6; |
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69 | mwmr_read( mwmr, &val, 1 ); |
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70 | for(x = 0 ; x < tempo ; x++) asm volatile ("nop"); |
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71 | tty_printf("received value : %d temporisation = %d\n", val, tempo); |
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72 | } |
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73 | |
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74 | tty_printf("\n*** Completing consumer at cycle %d ***\n", proctime()); |
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75 | exit(); |
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76 | |
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77 | } // end consumer() |
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78 | |
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