cfe/net/net_tcpbuf.c

55     *  tmb_init(buf)
60     *  	   buf - modulo buffer structure
66 void tmb_init(tcpmodbuf_t *buf)
68     buf->tmb_addptr = 0;
69     buf->tmb_remptr = 0;
70     buf->tmb_len = 0;
74     *  tmb_adjust(buf,amt)
80     *  	   buf - modulo buffer structure
88 void tmb_adjust(tcpmodbuf_t *buf,int amt)
91     buf->tmb_len -= amt;
92     buf->tmb_remptr = (buf->tmb_remptr + amt) % buf->tmb_bufsize;
96     *  tmb_alloc(buf,size)
101     *  	   buf - modulo buffer structure
109 int tmb_alloc(tcpmodbuf_t *buf,int size)
111     buf->tmb_buf = KMALLOC(size,0);
112     if (!buf->tmb_buf) return -1;
113     buf->tmb_bufsize = size;
115     tmb_init(buf);
121     *  tmb_free(buf)
126     *  	   buf - modulo buffer
132 void tmb_free(tcpmodbuf_t *buf)
134     if (buf->tmb_buf) KFREE(buf->tmb_buf);
135     buf->tmb_buf = NULL;
140     *  tmb_copyin(tmb,buf,len,update)
146     *  	   buf,len - buffer and length of buffer to copy in
153 int tmb_copyin(tcpmodbuf_t *tmb,hsaddr_t buf,int len,int update)
172     hs_memcpy_from_hs(tmb->tmb_buf + tmb->tmb_addptr,buf,l);
174     buf += l;
177 	hs_memcpy_from_hs(tmb->tmb_buf,buf,maxlen);
193     *  tmb_copyout(tmb,buf,len,update)
199     *  	   buf,len - buffer and length of buffer to copy out
206 int tmb_copyout(tcpmodbuf_t *tmb,hsaddr_t buf,int len,int update)
222     hs_memcpy_to_hs(buf,tmb->tmb_buf + tmb->tmb_remptr,l);
223     buf += l;
227 	hs_memcpy_to_hs(buf,tmb->tmb_buf,maxlen);
243     *  tmb_copyout2(tmb,buf,offset,len)
252     *  	   buf,len - buffer and length of buffer to copy out
259 int tmb_copyout2(tcpmodbuf_t *tmb,hsaddr_t buf,int offset,int len)
282     hs_memcpy_to_hs(buf,tmb->tmb_buf + remptr,l);
283     buf += l;
287 	hs_memcpy_to_hs(buf,tmb->tmb_buf,maxlen);