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comparison tests/tooltalk/emacs-eval.c @ 70:131b0175ea99 r20-0b30

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Import from CVS: tag r20-0b30
author cvs
date Mon, 13 Aug 2007 09:02:59 +0200
parents
children 9fc91aa3a927
comparison
equal deleted inserted replaced
69:804d1389bcd6 70:131b0175ea99
1 /* emacs-eval.c - send an s-expression to XEmacs for evaluation via ToolTalk */
2
3 /* See `tooltalk-eval-handler' in the file lisp/tooltalk/tooltalk-init.el for
4 the receiver side. */
5
6 #include <desktop/tt_c.h>
7 #include <stdio.h>
8 #include <stdlib.h>
9 #include <sys/wait.h>
10
11 Tt_status tter;
12
13 #define exit_err_ptr(ptr) \
14 if ((tter = tt_ptr_error(ptr)) != TT_OK) \
15 { fprintf(stderr, "%d:%s\n", __LINE__, tt_status_message(tter)); exit(1); }
16
17 #define exit_err(stat) \
18 if ((tter = stat) != TT_OK) \
19 { fprintf(stderr, "%d:%s\n", __LINE__, tt_status_message(tter)); exit(1); }
20
21 Tt_callback_action callback_fn(Tt_message msg, Tt_pattern pat);
22 static Tt_message create_new_message(char *s_expression);
23 static int initialize_tooltalk(void);
24 static void usage(void);
25
26 static char* tt_procid;
27
28 Tt_callback_action
29 callback_fn(Tt_message msg, Tt_pattern pat)
30 {
31 tt_message_destroy(msg);
32 return TT_CALLBACK_PROCESSED;
33 }
34
35 static Tt_message
36 create_new_message(char *s_expression)
37 {
38 Tt_message msg;
39
40 msg = tt_message_create();
41 exit_err_ptr(msg);
42
43 exit_err(tt_message_address_set (msg, TT_PROCEDURE));
44 exit_err(tt_message_class_set (msg, TT_REQUEST));
45 exit_err(tt_message_scope_set (msg, TT_SESSION));
46 exit_err(tt_message_op_set (msg, "emacs-eval"));
47 exit_err(tt_message_arg_add (msg, TT_IN, "string", s_expression));
48 exit_err(tt_message_callback_add(msg, callback_fn));
49
50 return msg;
51 }
52
53 static int
54 initialize_tooltalk(void) {
55 int rcode;
56
57 tt_procid = tt_open();
58 if ((rcode = tt_ptr_error(tt_procid)) != TT_OK) {
59 return rcode;
60 }
61
62 if ((rcode = tt_session_join(tt_default_session())) != TT_OK) {
63 return (rcode);
64 }
65 }
66
67
68 static void
69 usage(void)
70 {
71 fprintf(stderr,
72 "Usage: emacs-eval \"<s-expression>\"\n\n");
73 }
74
75 void
76 main(argc, argv)
77 int argc;
78 char *argv[];
79 {
80
81 Tt_message msg;
82
83 if (argc != 2) {
84 usage();
85 exit(0);
86 }
87
88 exit_err(initialize_tooltalk());
89
90 msg = create_new_message(argv[1]);
91
92 exit_err(tt_message_send(msg));
93
94 return;
95 }