1 2 #include <petscsys.h> 3 #if defined(PETSC_HAVE_SYS_TIME_H) 4 #include <sys/time.h> 5 #endif 6 #include <time.h> 7 #if defined(PETSC_NEEDS_GETTIMEOFDAY_PROTO) 8 PETSC_EXTERN int gettimeofday(struct timeval*,struct timezone*); 9 #endif 10 11 /* 12 This function is called once during the initialize stage. 13 It stashes the timestamp, and uses it when needed. This is so that 14 error handlers may report the date without generating possible 15 additional system errors during the call to get the date. 16 17 */ 18 /*@C 19 PetscGetDate - Gets the current date. 20 21 Not collective 22 23 Input Parameter: 24 . len - length of string to hold date 25 26 Output Parameter: 27 . date - the date 28 29 Level: beginner 30 31 This function DOES make a system call and thus SHOULD NOT be called 32 from an error handler. 33 34 @*/ 35 PetscErrorCode PetscGetDate(char date[],size_t len) 36 { 37 char *str=NULL; 38 #if defined(PETSC_HAVE_TIME) 39 time_t aclock; 40 #else 41 struct timeval tp; 42 #endif 43 44 PetscFunctionBegin; 45 #if defined(PETSC_HAVE_TIME) 46 time(&aclock); 47 PetscCall(PetscStrncpy(date,asctime(localtime(&aclock)),len)); 48 #else 49 gettimeofday(&tp,(struct timezone*)0); 50 PetscCall(PetscStrncpy(date,asctime(localtime((time_t*)&tp.tv_sec)),len)); 51 #endif 52 /* now strip out the new-line chars at the end of the string */ 53 PetscCall(PetscStrstr(date,"\n",&str)); 54 if (str) str[0] = 0; 55 PetscFunctionReturn(0); 56 } 57