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00001 /*------------------------------------------------------------------------- 00002 * 00003 * linux.h 00004 * Port-specific prototypes for Linux 00005 * 00006 * 00007 * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group 00008 * Portions Copyright (c) 1994, Regents of the University of California 00009 * 00010 * src/backend/port/dynloader/linux.h 00011 * 00012 *------------------------------------------------------------------------- 00013 */ 00014 #ifndef PORT_PROTOS_H 00015 #define PORT_PROTOS_H 00016 00017 #include "utils/dynamic_loader.h" /* pgrminclude ignore */ 00018 #ifdef HAVE_DLOPEN 00019 #include <dlfcn.h> 00020 #endif 00021 00022 00023 #ifdef HAVE_DLOPEN 00024 00025 /* 00026 * In some older systems, the RTLD_NOW flag isn't defined and the mode 00027 * argument to dlopen must always be 1. The RTLD_GLOBAL flag is wanted 00028 * if available, but it doesn't exist everywhere. 00029 * If it doesn't exist, set it to 0 so it has no effect. 00030 */ 00031 #ifndef RTLD_NOW 00032 #define RTLD_NOW 1 00033 #endif 00034 #ifndef RTLD_GLOBAL 00035 #define RTLD_GLOBAL 0 00036 #endif 00037 00038 #define pg_dlopen(f) dlopen((f), RTLD_NOW | RTLD_GLOBAL) 00039 #define pg_dlsym dlsym 00040 #define pg_dlclose dlclose 00041 #define pg_dlerror dlerror 00042 #endif /* HAVE_DLOPEN */ 00043 00044 #endif /* PORT_PROTOS_H */
1.7.1