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annotate rvinterf/etm/interf.c @ 182:13a0348ffce4

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rvinterf/etm: checkpointing not-yet-compilable code
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sun, 24 Nov 2013 06:59:09 +0000
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children 85222710dc92
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13a0348ffce4 rvinterf/etm: checkpointing not-yet-compilable code
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1 /*
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2 * This module implements the link to rvinterf.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <unistd.h>
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9 #include "../localsock.h"
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10
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11 extern int sock;
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12
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13 u_char rvi_msg[LOCALSOCK_MAX_MSG];
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14 int rvi_msg_len;
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15
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16 static int rx_state, rx_left;
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17 static u_char *rx_ptr;
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18
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19 void
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20 localsock_prep_for_length_rx()
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21 {
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22 rx_state = 0;
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23 rx_ptr = rvi_msg;
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24 rx_left = 2;
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25 }
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26
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27 static void
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28 prep_for_message_rx()
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29 {
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30 rx_state = 1;
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31 rx_ptr = rvi_msg;
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32 rx_left = rvi_msg_len;
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33 }
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34
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35 void
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36 process_msg_from_rvinterf()
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37 {
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38
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39
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40 }
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41
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42 void
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43 handle_rvinterf_input()
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44 {
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45 int cc;
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46
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47 cc = read(sock, rx_ptr, rx_left);
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48 if (cc <= 0) {
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49 tty_cleanup();
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50 perror("read from rvinterf socket");
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51 exit(1);
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52 }
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53 rx_ptr += cc;
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54 rx_left -= cc;
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55 if (rx_left)
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56 return;
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57 /* got the thing, process it */
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58 if (rx_state) {
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59 process_msg_from_rvinterf();
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60 localsock_prep_for_length_rx();
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61 } else {
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62 rvi_msg_len = rvi_msg[0] << 8 | rvi_msg[1];
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63 if (rvi_msg_len < 1 || rvi_msg_len > LOCALSOCK_MAX_MSG) {
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64 tty_cleanup();
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65 fprintf(stderr,
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66 "Invalid length from rvinterf: %02X%02X\n",
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67 rvi_msg[0], rvi_msg[1]);
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68 exit(1);
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69 }
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70 prep_for_message_rx();
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71 }
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72 }