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70
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1 /* load-file.c - load & execute an Emacs Lisp file in XEmacs using ToolTalk */
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2
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3 /* See `tooltalk-load-file-handler' in the file lisp/tooltalk/tooltalk-init.el
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4 for the receiver side. */
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5
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6 #include <desktop/tt_c.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <sys/wait.h>
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10
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11 Tt_status tter;
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12
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13 #define exit_err_ptr(ptr) \
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14 if ((tter = tt_ptr_error(ptr)) != TT_OK) \
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15 { fprintf(stderr, "%d:%s\n", __LINE__, tt_status_message(tter)); exit(1); }
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16
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17 #define exit_err(stat) \
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18 if ((tter = stat) != TT_OK) \
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19 { fprintf(stderr, "%d:%s\n", __LINE__, tt_status_message(tter)); exit(1); }
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20
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21 Tt_callback_action callback_fn(Tt_message msg, Tt_pattern pat);
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22 static Tt_message create_new_message(char *pathname);
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23 static int initialize_tooltalk(void);
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24 static void usage(void);
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25
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26 static char* tt_procid;
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27
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28 Tt_callback_action
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29 callback_fn(Tt_message msg, Tt_pattern pat)
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30 {
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31 tt_message_destroy(msg);
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32 return TT_CALLBACK_PROCESSED;
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33 }
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34
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35 static Tt_message
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36 create_new_message(char *pathname)
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37 {
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38 Tt_message msg;
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39
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40 msg = tt_message_create();
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41 exit_err_ptr(msg);
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42
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43 exit_err(tt_message_address_set (msg, TT_PROCEDURE));
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44 exit_err(tt_message_class_set (msg, TT_REQUEST));
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45 exit_err(tt_message_scope_set (msg, TT_SESSION));
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46 exit_err(tt_message_op_set (msg, "emacs-load-file"));
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47 exit_err(tt_message_arg_add (msg, TT_IN, "file", pathname));
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48 exit_err(tt_message_callback_add(msg, callback_fn));
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49
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50 return msg;
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51 }
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52
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53 static int
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54 initialize_tooltalk(void) {
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55 int rcode;
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56
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57 tt_procid = tt_open();
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58 if ((rcode = tt_ptr_error(tt_procid)) != TT_OK) {
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59 return rcode;
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60 }
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61
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62 if ((rcode = tt_session_join(tt_default_session())) != TT_OK) {
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63 return (rcode);
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64 }
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65 }
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66
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67
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68 static void
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69 usage(void)
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70 {
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71 fprintf(stderr,
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72 "Usage: load-file pathname\n\n");
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73 }
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74
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75 void
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76 main(argc, argv)
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77 int argc;
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78 char *argv[];
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79 {
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80
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81 Tt_message msg;
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82
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83 if (argc != 2) {
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84 usage();
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85 exit(0);
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86 }
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87
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88 exit_err(initialize_tooltalk());
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89
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90 msg = create_new_message(argv[1]);
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91
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92 exit_err(tt_message_send(msg));
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93
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94 return;
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95 }
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