88 строки
2.5 KiB
C
88 строки
2.5 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#ifndef OMPI_MISC_H
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#define OMPI_MISC_H
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#define _SC_PAGESIZE 0
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static __inline char* getenv (const char *name) {
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/* currently, this is a memory leak */
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int ret;
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char *buffer = (char *)malloc(sizeof(char) * 100);
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ret = GetEnvironmentVariable(name, buffer, 100);
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return (ret > 0) ? buffer: NULL;
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}
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static __inline int setenv (const char *name, const char *value, int rewrite) {
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/* just push it back to the windows thingy */
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int ret = SetEnvironmentVariable (name, value);
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return (0 != ret)? 1: 0;
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}
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static __inline unsigned int sleep(unsigned int seconds) {
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/* microsoft sleep is in milliseconds. Note: interrupt beaviour has
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not yet been handled */
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Sleep(seconds * 100);
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return 0;
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}
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/* this function can currently ONLY return the page size. for it to
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do the entire sysconf range it needs to beb extended */
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static __inline size_t sysconf(int option) {
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SYSTEM_INFO sys_info;
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GetSystemInfo(&sys_info);
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if (_SC_PAGESIZE == option){
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return (size_t)sys_info.dwPageSize;
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}
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else {
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printf("This functionality is not supported: line: %d\tfile: %s\n",
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__LINE__, __FILE__);
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abort();
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}
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}
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#define F_GETFL 0
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#define F_SETFL 1
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#define O_NONBLOCK 0
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/*
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* this function is currently defined only for setting the socket to be
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* in the non-blocking mode. Else this function returns error not implemented.
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* This calls ioctlsocket in the winsock library
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*/
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static __inline int fcntl (int fildes, int cmd, ...) {
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int ret;
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int mode;
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switch (cmd) {
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case F_SETFL: mode = 1; ret = ioctlsocket ((SOCKET)fildes, FIONBIO, (u_long FAR*) &mode);
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break;
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case F_GETFL: ret = 0;
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break;
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default: printf("Option not supported: %d %s\n", __LINE__, __FILE__);
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abort();
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};
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return ret;
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}
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#endif /* OMPI_MISC_H */
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