os_time.h File Reference
Wrapper around OS native time functions. More...
#include "xrt/xrt_config_os.h"#include "xrt/xrt_compiler.h"#include "util/u_time.h"#include <time.h>#include <sys/time.h>
Include dependency graph for os_time.h:
Go to the source code of this file.
Data Structures | |
| struct | os_precise_sleeper |
Macros | |
| #define | XRT_HAVE_TIMESPEC |
| #define | XRT_HAVE_TIMEVAL |
| #define | OS_NS_PER_USEC (1000) |
Functions | |
| static uint64_t | os_monotonic_get_ns (void) |
| Return a monotonic clock in nanoseconds. More... | |
| static void | os_nanosleep (int64_t nsec) |
| Sleep the given number of nanoseconds. More... | |
| static uint64_t | os_timespec_to_ns (const struct timespec *spec) |
| Convert a timespec struct to nanoseconds. More... | |
| static void | os_ns_to_timespec (uint64_t ns, struct timespec *spec) |
| Convert an nanosecond integer to a timespec struct. More... | |
| static uint64_t | os_timeval_to_ns (struct timeval *val) |
| Convert a timeval struct to nanoseconds. More... | |
| static uint64_t | os_realtime_get_ns (void) |
| Return a realtime clock in nanoseconds (Linux-only) More... | |
| static int64_t | os_ns_per_qpc_tick_get (void) |
| Return a qpc freq in nanoseconds. More... | |
| static void | os_precise_sleeper_init (struct os_precise_sleeper *ops) |
| static void | os_precise_sleeper_deinit (struct os_precise_sleeper *ops) |
| static void | os_precise_sleeper_nanosleep (struct os_precise_sleeper *ops, int32_t nsec) |
Detailed Description
Wrapper around OS native time functions.
These should be preferred over directly using native OS time functions in potentially-portable code. Additionally, in most cases these are preferred over timepoints from time_state for general usage in drivers, etc.
