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/*
* DYNAMIC_LOADER.H
*
* /usr/local/devel/postgres-v4r2/src/backend/utils/RCS/dynamic_loader.h,v 1.10 1993/07/29 00:16:25 andrew Exp
*/
#ifndef Dynamic_loaderHIncluded
#define Dynamic_loaderHIncluded 1 /* include once only */
#ifdef MIN
#undef MIN
#undef MAX
#endif /* MIN */
#include <sys/param.h> /* for MAXPATHLEN */
#include <sys/types.h> /* for dev_t, ino_t, etc. */
typedef struct {
func_ptr func;
char *name;
} FList;
extern FList ExtSyms[];
/*
* The new dynamic loader scheme loads each file one at a time. Therefore,
* we must note each function in the file at load time.
*
*/
/*
* Dynamically loaded function list.
*/
typedef struct df_list {
char *funcname; /* Name of function */
func_ptr func; /* Function address */
struct df_list *next;
} DynamicFunctionList;
/*
* List of dynamically loaded files.
*/
typedef struct df_files {
char filename[MAXPATHLEN]; /* Full pathname of file */
dev_t device; /* Device file is on */
ino_t inode; /* Inode number of file */
void *handle; /* a handle for pg_dl* functions */
struct df_files *next;
} DynamicFileList;
void *pg_dlopen ARGS((char *filename, char **errmsg));
func_ptr pg_dlsym ARGS((void *handle, char *funcname));
void pg_dlclose ARGS((void *handle));
#endif Dynamic_loaderHIncluded
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