1e5c89e4eSSatish Balay 2c6db04a5SJed Brown #include <petscsys.h> 3e5c89e4eSSatish Balay #if defined(PETSC_HAVE_SYS_TIME_H) 4e5c89e4eSSatish Balay #include <sys/time.h> 5e5c89e4eSSatish Balay #endif 6e5c89e4eSSatish Balay #include <time.h> 7e5c89e4eSSatish Balay #if defined(PETSC_NEEDS_GETTIMEOFDAY_PROTO) 88cc058d9SJed Brown PETSC_EXTERN int gettimeofday(struct timeval *, struct timezone *); 9e5c89e4eSSatish Balay #endif 10e5c89e4eSSatish Balay 11e5c89e4eSSatish Balay /* 12e5c89e4eSSatish Balay This function is called once during the initialize stage. 13e5c89e4eSSatish Balay It stashes the timestamp, and uses it when needed. This is so that 14e5c89e4eSSatish Balay error handlers may report the date without generating possible 15e5c89e4eSSatish Balay additional system errors during the call to get the date. 16e5c89e4eSSatish Balay 17e5c89e4eSSatish Balay */ 18e5c89e4eSSatish Balay /*@C 19e5c89e4eSSatish Balay PetscGetDate - Gets the current date. 20e5c89e4eSSatish Balay 21e5c89e4eSSatish Balay Not collective 22e5c89e4eSSatish Balay 23e5c89e4eSSatish Balay Input Parameter: 24e5c89e4eSSatish Balay . len - length of string to hold date 25e5c89e4eSSatish Balay 26e5c89e4eSSatish Balay Output Parameter: 27e5c89e4eSSatish Balay . date - the date 28e5c89e4eSSatish Balay 29e5c89e4eSSatish Balay Level: beginner 30e5c89e4eSSatish Balay 31e5c89e4eSSatish Balay This function DOES make a system call and thus SHOULD NOT be called 32e5c89e4eSSatish Balay from an error handler. 33e5c89e4eSSatish Balay 34e5c89e4eSSatish Balay @*/ 35*9371c9d4SSatish Balay PetscErrorCode PetscGetDate(char date[], size_t len) { 360298fd71SBarry Smith char *str = NULL; 37e5c89e4eSSatish Balay #if defined(PETSC_HAVE_TIME) 38e5c89e4eSSatish Balay time_t aclock; 39e5c89e4eSSatish Balay #else 40e5c89e4eSSatish Balay struct timeval tp; 41e5c89e4eSSatish Balay #endif 42e5c89e4eSSatish Balay 43e5c89e4eSSatish Balay PetscFunctionBegin; 44e5c89e4eSSatish Balay #if defined(PETSC_HAVE_TIME) 45e5c89e4eSSatish Balay time(&aclock); 469566063dSJacob Faibussowitsch PetscCall(PetscStrncpy(date, asctime(localtime(&aclock)), len)); 47e5c89e4eSSatish Balay #else 48e5c89e4eSSatish Balay gettimeofday(&tp, (struct timezone *)0); 499566063dSJacob Faibussowitsch PetscCall(PetscStrncpy(date, asctime(localtime((time_t *)&tp.tv_sec)), len)); 50e5c89e4eSSatish Balay #endif 51e5c89e4eSSatish Balay /* now strip out the new-line chars at the end of the string */ 529566063dSJacob Faibussowitsch PetscCall(PetscStrstr(date, "\n", &str)); 53e5c89e4eSSatish Balay if (str) str[0] = 0; 54e5c89e4eSSatish Balay PetscFunctionReturn(0); 55e5c89e4eSSatish Balay } 56