40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
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#include <lladd/fifo.h>
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#include <lladd/crc32.h>
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#include <stdlib.h>
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#include "logger/logMemory.h"
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/**
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Obtain a member of a fifoPool based on the value of multiplexKey. Use CRC32 to assign the key to a consumer.
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*/
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lladdFifo_t * lladdFifoPool_getFifoCRC32( lladdFifoPool_t * pool, byte * multiplexKey, size_t multiplexKeySize) {
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int memberId = crc32(multiplexKey, multiplexKeySize, (unsigned long)-1L) % pool->fifoCount;
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return pool->pool[memberId];
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}
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void lladdFifoPool_markDirty(int xid, lladdFifoPool_t * pool, lladdFifo_t * fifo) {
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if(pool->dirtyPoolFifo) {
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Tconsumer_push(xid, pool->dirtyPoolFifo->consumer, NULL, 0, (byte*)&fifo, sizeof(lladdFifo_t*));
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}
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}
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/**
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Create a new pool of ringBuffer based fifos
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@param consumerCount the number of consumers in the pool.
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@todo this function should be generalized to other consumer implementations.
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*/
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lladdFifoPool_t * lladdFifoPool_ringBufferInit (int consumerCount, int bufferSize,
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lladdFifoPool_getFifo_t * getFifo, lladdFifo_t * dirtyPoolFifo) {
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lladdFifoPool_t * pool = malloc(sizeof(lladdFifoPool_t));
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pool->getFifo = getFifo ? getFifo : lladdFifoPool_getFifoCRC32;
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pool->dirtyPoolFifo = dirtyPoolFifo;
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pool->pool = malloc(sizeof(lladdFifo_t*) * consumerCount);
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int i;
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for(i = 0; i < consumerCount; i++) {
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pool->pool[i] = logMemoryFifo(bufferSize, 0);
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}
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pool->fifoCount = consumerCount;
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return pool;
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}
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