forked from bartvdbraak/blender
126 lines
2.3 KiB
C
126 lines
2.3 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "verse_header.h"
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#include "v_cmd_buf.h"
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#include "v_cmd_gen.h"
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#include "v_connection.h"
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#include "v_internal_verse.h"
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#include "v_network.h"
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#include "v_pack.h"
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#if !defined(V_GENERATE_FUNC_MODE)
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#include "v_network_in_que.h"
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static VNetInPacked *v_niq_temp = NULL;
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void v_niq_clear(VNetInQueue *queue)
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{
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queue->oldest = NULL;
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queue->newest = NULL;
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queue->packet_id = 2;
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v_niq_timer_update(queue);
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}
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/* Set queue's last-used timestamp to "now". */
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void v_niq_timer_update(VNetInQueue *queue)
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{
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v_n_get_current_time(&queue->seconds, NULL);
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}
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uint32 v_niq_time_out(const VNetInQueue *queue)
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{
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uint32 seconds;
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v_n_get_current_time(&seconds, NULL);
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/* printf("queue at %p has seconds=%u, now=%u -> diff=%u\n", queue, queue->seconds, seconds, seconds - queue->seconds);*/
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return seconds - queue->seconds;
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}
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VNetInPacked * v_niq_get(VNetInQueue *queue, size_t *length)
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{
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VNetInPacked *p;
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if(queue->oldest == NULL)
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{
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*length = 0;
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return NULL;
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}
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/* pop oldest package */
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p = queue->oldest;
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queue->oldest = p->newer;
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if(queue->oldest == NULL)
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queue->newest = NULL;
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else
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((VNetInPacked *)queue->oldest)->older = NULL;
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*length = p->size;
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return p;
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}
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unsigned int v_niq_free(VNetInQueue *queue)
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{
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unsigned int i;
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size_t length;
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for(i = 0; v_niq_get(queue, &length) != NULL; i++)
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;
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return i;
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}
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void v_niq_release(VNetInQueue *queue, VNetInPacked *p)
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{
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/* push on v_niq_temp for re-use */
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p->older = v_niq_temp;
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v_niq_temp = p;
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}
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char *v_niq_store(VNetInQueue *queue, size_t length, unsigned int packet_id)
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{
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VNetInPacked *p;
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v_niq_timer_update(queue);
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if(packet_id < queue->packet_id)
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return NULL;
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while(queue->packet_id != packet_id)
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{
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verse_send_packet_nak(queue->packet_id++);
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if(queue->packet_id == 0)
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queue->packet_id++;
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}
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queue->packet_id++;
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if(queue->packet_id == 0)
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queue->packet_id++;
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verse_send_packet_ack(packet_id);
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if(v_niq_temp == NULL)
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p = malloc(sizeof *p);
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else
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{
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/* pop off v_niq_temp */
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p = v_niq_temp;
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v_niq_temp = p->older;
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}
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/* push as newest */
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p->older = queue->newest;
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p->newer = NULL;
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if(queue->newest == NULL)
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queue->oldest = p;
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else
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((VNetInPacked *)queue->newest)->newer = p;
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queue->newest = p;
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p->size = length;
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return p->data;
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}
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#endif
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