[158] | 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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