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/* 
|| This file is part of Pike. For copyright information see COPYRIGHT. 
|| Pike is distributed under GPL, LGPL and MPL. See the file COPYING 
|| for more information. 
|| $Id: module_support.h,v 1.15 2002/10/11 01:39:34 nilsson Exp $ 
*/ 
 
#ifndef MODULE_SUPPORT_H 
#include <stdarg.h> 
 
enum error_type { 
  ERR_NONE, 
  ERR_TOO_FEW, 
  ERR_TOO_MANY, 
  ERR_BAD_ARG 
}; 
 
struct expect_result { 
  enum error_type error_type; 
  int argno;                 /* Which argument was it */ 
  unsigned INT32 expected;   /* What type was expected */ 
  TYPE_T got;               /* What type did we actually receive */ 
}; 
 
/* This should be used in module_init */ 
#define PIKE_MODULE_EXPORT(MOD, SYM) \ 
  pike_module_export_symbol(#MOD "." #SYM, CONSTANT_STRLEN(#MOD "." #SYM), (void *)SYM) 
 
#define PIKE_MODULE_IMPORT(MOD, SYM) \ 
  pike_module_import_symbol(#MOD "." #SYM, CONSTANT_STRLEN(#MOD "." #SYM), #MOD, CONSTANT_STRLEN(#MOD)) 
 
 
/* Prototypes begin here */ 
PMOD_EXPORT int check_args(int args, ...); 
PMOD_EXPORT void check_all_args(const char *fnname, int args, ... ); 
int va_get_args(struct svalue *s, 
                INT32 num_args, 
                const char *fmt, 
                va_list ap); 
PMOD_EXPORT int get_args(struct svalue *s, 
             INT32 num_args, 
             const char *fmt, ...); 
PMOD_EXPORT void get_all_args(const char *fname, INT32 args, 
                              const char *format,  ... ); 
PMOD_EXPORT void pike_module_export_symbol(const char *str, 
                                           int len, 
                                           void *ptr); 
PMOD_EXPORT void *pike_module_import_symbol(const char *str, 
                                            int len, 
                                            const char *module, 
                                            int module_len); 
void cleanup_module_support (void); 
/* Prototypes end here */ 
 
#endif