test/scanvarstest.c

   1 /*
   2     Copyright © 1995-2008, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: dos.library ScanVars() function test.
   6 */
   7
   8 #include <string.h>
   9 #include <stdio.h>
  10
  11 #include <proto/dos.h>
  12 #include <proto/utility.h>
  13 #include <dos/var.h>
  14
  15 LONG print_var(struct Hook *hook, APTR userdata, struct ScanVarsMsg *message)
  16 {
  17         printf("Hook called with userdata: %s\n", (char*) userdata);
  18     printf("%s=%.*s\n", message->sv_Name, message->sv_VarLen, message->sv_Var);
  19     return 0;
  20 }
  21
  22 LONG print_var_break(struct Hook *hook, APTR userdata, struct ScanVarsMsg *message)
  23 {
  24         printf("Hook called with userdata: %s\n", (char*) userdata);
  25     printf("%s=%.*s\n", message->sv_Name, message->sv_VarLen, message->sv_Var);
  26     if(!strncmp("var2", message->sv_Name, 4))
  27     {
  28         printf("Scanned var2 variable!\n");
  29         return 1;
  30     }
  31     return 0;
  32 }
  33
  34 int main(void)
  35 {
  36     struct Hook hook;
  37     char userdata[] = "Some user data...";
  38     LONG ret;
  39
  40     memset(&hook, 0, sizeof(struct Hook));
  41     hook.h_Entry = print_var;
  42
  43     printf("Scanning local variables:\n");
  44     ret = ScanVars(&hook, GVF_LOCAL_ONLY, userdata);
  45     printf("ScanVars returned %d\n", ret);
  46
  47     printf("Adding some new local variables:\n");
  48     SetVar("var1","Value of variable 1", -1, GVF_LOCAL_ONLY);
  49     SetVar("var2","Value of variable 2", -1, GVF_LOCAL_ONLY);
  50     SetVar("var3","Value of variable 3", -1, GVF_LOCAL_ONLY);
  51     printf("Scanning local variables again:\n");
  52     ret = ScanVars(&hook, GVF_LOCAL_ONLY, userdata);
  53     printf("ScanVars returned %d\n", ret);
  54
  55     printf("Trying to print all variables up to var2:\n");
  56     hook.h_Entry = print_var_break;
  57     ret = ScanVars(&hook, GVF_LOCAL_ONLY, userdata);
  58     printf("ScanVars returned %d\n", ret);
  59 }