|  | #include <stdlib.h> | 
|  | #include <sys/time.h> | 
|  |  | 
|  | unsigned long long os_usecs(void) | 
|  | { | 
|  | struct timeval tv; | 
|  |  | 
|  | gettimeofday(&tv, NULL); | 
|  | return((unsigned long long) tv.tv_sec * 1000000 + tv.tv_usec); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Overrides for Emacs so that we follow Linus's tabbing style. | 
|  | * Emacs will notice this stuff at the end of the file and automatically | 
|  | * adjust the settings for this buffer only.  This must remain at the end | 
|  | * of the file. | 
|  | * --------------------------------------------------------------------------- | 
|  | * Local variables: | 
|  | * c-file-style: "linux" | 
|  | * End: | 
|  | */ |