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-rw-r--r--code/ecp/rbuf_send.c387
1 files changed, 0 insertions, 387 deletions
diff --git a/code/ecp/rbuf_send.c b/code/ecp/rbuf_send.c
deleted file mode 100644
index 5847744..0000000
--- a/code/ecp/rbuf_send.c
+++ /dev/null
@@ -1,387 +0,0 @@
-#include "core.h"
-#include "tr.h"
-
-#define NACK_RATE_UNIT 10000
-
-static ssize_t flush_send(ECPConnection *conn, ECPTimerItem *ti) {
- ECPBuffer packet;
- ECPBuffer payload;
- unsigned char pkt_buf[ECP_SIZE_PKT_BUF(0, ECP_MTYPE_RBFLUSH, conn)];
- unsigned char pld_buf[ECP_SIZE_PLD_BUF(0, ECP_MTYPE_RBFLUSH, conn)];
-
- packet.buffer = pkt_buf;
- packet.size = ECP_SIZE_PKT_BUF(0, ECP_MTYPE_RBFLUSH, conn);
- payload.buffer = pld_buf;
- payload.size = ECP_SIZE_PLD_BUF(0, ECP_MTYPE_RBFLUSH, conn);
-
- ecp_pld_set_type(pld_buf, ECP_MTYPE_RBFLUSH);
- if (ti == NULL) {
- ECPTimerItem _ti;
- int rv = ecp_timer_item_init(&_ti, conn, ECP_MTYPE_RBACK, 3, 500);
- if (rv) return rv;
-
- _ti.retry = flush_send;
- rv = ecp_timer_push(&_ti);
- if (rv) return rv;
- }
- return ecp_rbuf_pld_send(conn, &packet, &payload, ECP_SIZE_PLD(0, ECP_MTYPE_RBFLUSH), 0, 0);
-}
-
-static void cc_flush(ECPConnection *conn) {
- ECPRBSend *buf = conn->rbuf.send;
- ECPRBuffer *rbuf = &buf->rbuf;
- ecp_seq_t pkt_buf_cnt = rbuf->seq_max - rbuf->seq_start + 1;
- ecp_win_t pkt_cc_cnt = buf->win_size > buf->in_transit ? buf->win_size - buf->in_transit : 0;
- int pkt_to_send = pkt_buf_cnt < pkt_cc_cnt ? pkt_buf_cnt : pkt_cc_cnt;
- int i;
-
- ECPTimerItem ti[ECP_MAX_TIMER];
- unsigned short max_t = 0;
-
- if (pkt_to_send) {
- unsigned int idx = ecp_rbuf_msg_idx(rbuf, buf->seq_cc);
- unsigned int _idx = idx;
-
- for (i=0; i<pkt_to_send; i++) {
- if (!(rbuf->msg[_idx].flags & ECP_RBUF_FLAG_IN_CCONTROL)) break;
- rbuf->msg[_idx].flags &= ~ECP_RBUF_FLAG_IN_CCONTROL;
- if (rbuf->msg[_idx].idx_t != -1) {
- ECPRBTimer *timer = &buf->timer;
- ECPRBTimerItem *item = &timer->item[rbuf->msg[_idx].idx_t];
-
- item->occupied = 0;
- ti[max_t] = item->item;
- rbuf->msg[_idx].idx_t = max_t;
- max_t++;
- }
- _idx = ECP_RBUF_IDX_MASK(_idx + 1, rbuf->msg_size);
- }
- pkt_to_send = i;
- _idx = idx;
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_unlock(&buf->mutex);
-#endif
-
- for (i=0; i<pkt_to_send; i++) {
- ECPBuffer packet;
-
- if (rbuf->msg[_idx].idx_t != -1) ecp_timer_push(&ti[rbuf->msg[_idx].idx_t]);
- packet.buffer = rbuf->msg[_idx].msg;
- packet.size = rbuf->msg[_idx].size;
- ecp_pkt_send(conn->sock, &conn->node.addr, &packet, rbuf->msg[_idx].size, 0);
- _idx = ECP_RBUF_IDX_MASK(_idx + 1, rbuf->msg_size);
- }
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_lock(&buf->mutex);
-#endif
-
- buf->in_transit += (ecp_win_t)pkt_to_send;
- buf->cnt_cc -= (ecp_win_t)pkt_to_send;
- buf->seq_cc += (ecp_seq_t)pkt_to_send;
- }
-}
-
-ssize_t ecp_rbuf_handle_ack(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, ssize_t size, ECP2Buffer *b) {
- ECPRBSend *buf;
- ssize_t rsize = sizeof(ecp_seq_t)+sizeof(ecp_ack_t);
- ecp_seq_t seq_ack = 0;
- ecp_ack_t ack_map = 0;
- int i;
- int do_flush = 0;
- int rv = ECP_OK;
-
- buf = conn->rbuf.send;
- if (buf == NULL) return size;
- if (size < 0) return size;
- if (size < rsize) return ECP_ERR;
-
- seq_ack = \
- (msg[0] << 24) | \
- (msg[1] << 16) | \
- (msg[2] << 8) | \
- (msg[3]);
- ack_map = \
- (msg[4] << 24) | \
- (msg[5] << 16) | \
- (msg[6] << 8) | \
- (msg[7]);
-
- ecp_tr_release(b->packet, 1);
- ecp_tr_flag_set(ECP_SEND_FLAG_MORE);
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_lock(&buf->mutex);
-#endif
-
- ECPRBuffer *rbuf = &buf->rbuf;
- int idx = ecp_rbuf_msg_idx(rbuf, seq_ack);
- if (idx < 0) rv = idx;
-
- if (!rv) {
- seq_ack++;
- if (buf->flags & ECP_RBUF_FLAG_CCONTROL) buf->in_transit = buf->cnt_cc ? buf->seq_cc - seq_ack : rbuf->seq_max - seq_ack + 1;
-
- if (ack_map != ECP_ACK_FULL) {
- int nack_first = 0;
- unsigned int msg_start;
- ecp_seq_t seq_start;
- ecp_win_t nack_cnt = 0;
-
- seq_ack -= ECP_SIZE_ACKB;
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_unlock(&buf->mutex);
-#endif
-
- for (i=0; i<ECP_SIZE_ACKB; i++) {
- if ((ack_map & ((ecp_ack_t)1 << (ECP_SIZE_ACKB - i - 1))) == 0) {
- nack_cnt++;
- if (buf->flags & ECP_RBUF_FLAG_RELIABLE) {
- unsigned int _idx = ECP_RBUF_IDX_MASK(idx + 1 - ECP_SIZE_ACKB + i, rbuf->msg_size);
- if ((rbuf->msg[_idx].size == 0) || (rbuf->msg[_idx].flags & ECP_RBUF_FLAG_SYS)) {
- ECPBuffer packet;
- ECPBuffer payload;
- unsigned char pkt_buf[ECP_SIZE_PKT_BUF(0, ECP_MTYPE_NOP, conn)];
- unsigned char pld_buf[ECP_SIZE_PLD_BUF(0, ECP_MTYPE_NOP, conn)];
-
- packet.buffer = pkt_buf;
- packet.size = ECP_SIZE_PKT_BUF(0, ECP_MTYPE_NOP, conn);
- payload.buffer = pld_buf;
- payload.size = ECP_SIZE_PLD_BUF(0, ECP_MTYPE_NOP, conn);
-
- ecp_pld_set_type(pld_buf, ECP_MTYPE_NOP);
- ecp_rbuf_pld_send(conn, &packet, &payload, ECP_SIZE_PLD(0, ECP_MTYPE_NOP), 0, seq_ack + i);
- } else {
- ECPBuffer packet;
- packet.buffer = rbuf->msg[_idx].msg;
- packet.size = rbuf->msg[_idx].size;
- ecp_pkt_send(conn->sock, &conn->node.addr, &packet, rbuf->msg[_idx].size, 0);
- }
- if (!nack_first) {
- nack_first = 1;
- seq_start = seq_ack + i;
- msg_start = _idx;
- }
- }
- }
- }
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_lock(&buf->mutex);
-#endif
-
- if (buf->flags & ECP_RBUF_FLAG_CCONTROL) buf->in_transit += nack_cnt;
- buf->nack_rate = (buf->nack_rate * 7 + ((ECP_SIZE_ACKB - nack_cnt) * NACK_RATE_UNIT) / ECP_SIZE_ACKB) / 8;
- if (buf->flags & ECP_RBUF_FLAG_RELIABLE) {
- rbuf->seq_start = seq_start;
- rbuf->msg_start = msg_start;
- } else {
- rbuf->seq_start = seq_ack + ECP_SIZE_ACKB;
- rbuf->msg_start = ECP_RBUF_IDX_MASK(idx + 1, rbuf->msg_size);
- }
- } else {
- buf->nack_rate = (buf->nack_rate * 7) / 8;
- rbuf->seq_start = seq_ack;
- rbuf->msg_start = ECP_RBUF_IDX_MASK(idx + 1, rbuf->msg_size);
- }
- if (buf->flush) {
- if (ECP_SEQ_LT(buf->seq_flush, rbuf->seq_start)) buf->flush = 0;
- if (buf->flush) do_flush = 1;
- }
- if (buf->cnt_cc) cc_flush(conn);
- }
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_unlock(&buf->mutex);
-#endif
-
- if (!rv && do_flush) {
- ssize_t _rv = flush_send(conn, NULL);
- if (_rv < 0) rv = _rv;
- }
-
- ecp_tr_flag_clear(ECP_SEND_FLAG_MORE);
- ecp_tr_release(b->packet, 0);
-
- if (rv) return rv;
- return rsize;
-}
-
-int ecp_rbuf_send_create(ECPConnection *conn, ECPRBSend *buf, ECPRBMessage *msg, unsigned int msg_size) {
- int rv;
-
- memset(buf, 0, sizeof(ECPRBRecv));
- rv = ecp_rbuf_init(&buf->rbuf, msg, msg_size);
- if (rv) return rv;
-
-#ifdef ECP_WITH_PTHREAD
- rv = pthread_mutex_init(&buf->mutex, NULL);
- if (rv) return ECP_ERR;
-#endif
-
- conn->rbuf.send = buf;
- return ECP_OK;
-}
-
-void ecp_rbuf_send_destroy(ECPConnection *conn) {
- ECPRBSend *buf = conn->rbuf.send;
-
- if (buf == NULL) return;
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_destroy(&buf->mutex);
-#endif
-
- conn->rbuf.send = NULL;
-}
-
-int ecp_rbuf_send_start(ECPConnection *conn) {
- ECPRBSend *buf = conn->rbuf.send;
-
- if (buf == NULL) return ECP_ERR;
-
- return ecp_rbuf_start(&buf->rbuf, conn->seq_out);
-}
-
-int ecp_rbuf_send_set_wsize(ECPConnection *conn, ecp_win_t size) {
- ECPRBSend *buf = conn->rbuf.send;
-
- if (buf == NULL) return ECP_ERR;
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_lock(&buf->mutex);
-#endif
-
- buf->win_size = size;
- if (buf->cnt_cc) cc_flush(conn);
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_unlock(&buf->mutex);
-#endif
-
- return ECP_OK;
-}
-
-int ecp_rbuf_send_flush(ECPConnection *conn) {
- ECPRBSend *buf = conn->rbuf.send;
- ecp_seq_t seq;
-
- if (buf == NULL) return ECP_ERR;
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_lock(&conn->mutex);
-#endif
- seq = conn->seq_out;
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_unlock(&conn->mutex);
-#endif
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_lock(&buf->mutex);
-#endif
-
- if (buf->flush) {
- if (ECP_SEQ_LT(buf->seq_flush, seq)) buf->seq_flush = seq;
- } else {
- buf->flush = 1;
- buf->seq_flush = seq;
- }
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_unlock(&buf->mutex);
-#endif
-
- ssize_t rv = flush_send(conn, NULL);
- if (rv < 0) return rv;
-
- return ECP_OK;
-}
-
-int ecp_rbuf_pkt_prep(ECPRBSend *buf, ECPSeqItem *si, unsigned char mtype) {
- if (si->rb_pass) return ECP_OK;
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_lock(&buf->mutex);
-#endif
- int idx = ecp_rbuf_msg_idx(&buf->rbuf, si->seq);
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_unlock(&buf->mutex);
-#endif
-
- if (idx < 0) return idx;
-
- si->rb_mtype = mtype;
- si->rb_idx = idx;
- buf->rbuf.msg[idx].size = 0;
- buf->rbuf.msg[idx].flags = 0;
-
- return ECP_OK;
-}
-
-ssize_t ecp_rbuf_pkt_send(ECPRBSend *buf, ECPSocket *sock, ECPNetAddr *addr, ECPBuffer *packet, size_t pkt_size, unsigned char flags, ECPTimerItem *ti, ECPSeqItem *si) {
- int do_send = 1;
- ssize_t rv = 0;
-
- if (!si->rb_pass) {
- unsigned char flags = 0;
- ecp_seq_t seq = si->seq;
- unsigned int idx = si->rb_idx;
- unsigned char mtype = si->rb_mtype & ECP_MTYPE_MASK;
-
- if (mtype < ECP_MAX_MTYPE_SYS) flags |= ECP_RBUF_FLAG_SYS;
-
- rv = ecp_rbuf_msg_store(&buf->rbuf, seq, idx, packet->buffer, pkt_size, 0, flags);
- if (rv < 0) return rv;
-
- if (buf->flags & ECP_RBUF_FLAG_CCONTROL) {
- int _rv = ECP_OK;
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_lock(&buf->mutex);
-#endif
-
- if (ECP_SEQ_LT(buf->rbuf.seq_max, seq)) buf->rbuf.seq_max = seq;
-
- if (buf->cnt_cc || (buf->in_transit >= buf->win_size)) {
- if (!buf->cnt_cc) buf->seq_cc = seq;
- buf->cnt_cc++;
- buf->rbuf.msg[idx].flags |= ECP_RBUF_FLAG_IN_CCONTROL;
- do_send = 0;
- if (ti) {
- ECPRBTimer *timer = &buf->timer;
- ECPRBTimerItem *item = &timer->item[timer->idx_w];
-
- if (!item->occupied) {
- item->occupied = 1;
- item->item = *ti;
- buf->rbuf.msg[idx].idx_t = timer->idx_w;
- timer->idx_w = (timer->idx_w) % ECP_MAX_TIMER;
- } else {
- _rv = ECP_ERR_MAX_TIMER;
- }
- } else {
- buf->rbuf.msg[idx].idx_t = -1;
- }
- } else {
- buf->in_transit++;
- }
-
-#ifdef ECP_WITH_PTHREAD
- pthread_mutex_unlock(&buf->mutex);
-#endif
-
- if (_rv) return _rv;
- }
- }
-
- if (do_send) {
- if (ti) {
- int _rv = ecp_timer_push(ti);
- if (_rv) return _rv;
- }
- rv = ecp_pkt_send(sock, addr, packet, pkt_size, flags);
- }
- return rv;
-}