src/backend/port/dynloader/aix.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * aix.h
   4  *        prototypes for AIX-specific routines
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * $PostgreSQL$
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14
  15 #ifndef PORT_PROTOS_H
  16 #define PORT_PROTOS_H
  17
  18 #include <dlfcn.h>
  19 #include "utils/dynamic_loader.h"
  20
  21 /*
  22  * In some older systems, the RTLD_NOW flag isn't defined and the mode
  23  * argument to dlopen must always be 1.  The RTLD_GLOBAL flag is wanted
  24  * if available, but it doesn't exist everywhere.
  25  * If it doesn't exist, set it to 0 so it has no effect.
  26  */
  27 #ifndef RTLD_NOW
  28 #define RTLD_NOW 1
  29 #endif
  30 #ifndef RTLD_GLOBAL
  31 #define RTLD_GLOBAL 0
  32 #endif
  33
  34 #define  pg_dlopen(f)   dlopen((f), RTLD_NOW | RTLD_GLOBAL)
  35 #define  pg_dlsym(h, f) ((PGFunction) dlsym(h, f))
  36 #define  pg_dlclose(h)  dlclose(h)
  37 #define  pg_dlerror()   dlerror()
  38
  39 #endif   /* PORT_PROTOS_H */