33 lines
777 B
C
33 lines
777 B
C
#ifndef _SPECIFIC_COMM_H_
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#define _SPECIFIC_COMM_H_ 1
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/* Non standard include */
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#include <commtech.h>
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#ifndef BUF_SIZE
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#define BUF_SIZE CACHE_LINE_SIZE
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#endif
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#define SHARED_SPACE_SIZE (2 * BUF_SIZE)
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#define SHARED_SPACE_VOIDPTR (SHARED_SPACE_SIZE / sizeof(void *))
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struct channel
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{
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void * volatile *shared_space;
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volatile unsigned int cons_idx __attribute__ ((aligned (CACHE_LINE_SIZE)));
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volatile unsigned int prod_idx __attribute__ ((aligned (CACHE_LINE_SIZE)));
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};
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__BEGIN_DECLS
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static inline void send(struct channel *channel, void **addr)
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{
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while ((channel->prod_idx + 1) % SHARED_SPACE_VOIDPTR == channel->cons_idx);
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channel->shared_space[channel->prod_idx] = addr;
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channel->prod_idx = (channel->prod_idx + 1) % SHARED_SPACE_VOIDPTR;
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}
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__END_DECLS
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#endif
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