src/noarch/internal/communication/imoc_get_free_entry.c

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#include <moc.h>
#include <internal/imoc.h>
#ifdef __SPU__
#include <internal/spu/imoc_core_spu.h>
#else
#include <internal/ppu/imoc_core_ppu.h>
#endif

int IMOC_getFreeEntry(moc_message_envelope_t* pqueue, uint8_t tag,
        MOC_Comm comm, int isSpecial, int* index)
    {
    int t, temp = -1;
    for (t = node_handle.queue_size - 1; t >= 0; t--)
        {
        if (!pqueue[t].flags.bits.valid)
            temp = t;
        else
            if (!isSpecial)
                {
                if (pqueue[t].tag == tag && pqueue[t].communicator == comm
                        && !pqueue[t].flags.bits.special)
                    break;
                }
            else
                {
                if (pqueue[t].flags.bits.special)
                    break;
                }
        }
    if (temp >= 0)
        {
        *index = temp;
        return 0;
        }
    else
        return MOC_ERR_MESSAGE_EXHAUSTED;
    return 0;
    }

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