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52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/*-------------------------------------------------------------------------
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*
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* bsdi.h
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* Dynamic loader interface for BSD/OS
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*
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* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: bsdi.h,v 1.17 2002/09/04 20:31:24 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PORT_PROTOS_H
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#define PORT_PROTOS_H
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#include "utils/dynamic_loader.h"
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#ifdef HAVE_DLOPEN
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#include <dlfcn.h>
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/*
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* In some older systems, the RTLD_NOW flag isn't defined and the mode
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* argument to dlopen must always be 1. The RTLD_GLOBAL flag is wanted
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* if available, but it doesn't exist everywhere.
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* If it doesn't exist, set it to 0 so it has no effect.
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*/
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#ifndef RTLD_NOW
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#define RTLD_NOW 1
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#endif
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#ifndef RTLD_GLOBAL
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#define RTLD_GLOBAL 0
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#endif
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#define pg_dlopen(f) dlopen((f), RTLD_NOW | RTLD_GLOBAL)
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#define pg_dlsym dlsym
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#define pg_dlclose dlclose
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#define pg_dlerror dlerror
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#else /* not HAVE_DLOPEN */
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#define pg_dlsym(handle, funcname) ((PGFunction) dld_get_func((funcname)))
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#define pg_dlclose(handle) \
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do { \
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dld_unlink_by_file(handle, 1); \
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free(handle); \
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} while (0)
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#endif /* not HAVE_DLOPEN */
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#endif /* PORT_PROTOS_H */
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