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aix.h
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1 /*-------------------------------------------------------------------------
2  *
3  * aix.h
4  * prototypes for AIX-specific routines
5  *
6  *
7  * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
8  * Portions Copyright (c) 1994, Regents of the University of California
9  *
10  * src/backend/port/dynloader/aix.h
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" /* pgrminclude ignore */
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 */