rte_delay_us_block3
Part of rte_cycles.h(3).
Usage
Functions
uint64_t rte_get_tsc_hz
(void)
static uint64_t
rte_get_tsc_cycles
(void)
static uint64_t
rte_get_timer_cycles
(void)
static uint64_t
rte_get_timer_hz
(void)
static void
rte_delay_ms
(unsigned
ms)
void rte_delay_us_block
(unsigned
int
us)
void rte_delay_us_sleep
(unsigned
int
us)
void rte_delay_us_callback_register
(void(*userfunc)(unsigned
int))
Detailed Description
Simple Time Reference Functions (Cycles and HPET).
Definition in file rte_cycles.h.
Function Documentation
uint64_t rte_get_tsc_hz (void)
Get the measured frequency of the RDTSC counter
Returns
The TSC frequency for this lcore
static uint64_t rte_get_tsc_cycles (void) [inline], [static]
Return the number of TSC cycles since boot
Returns
the number of cycles
static uint64_t rte_get_timer_cycles (void) [inline], [static]
Get the number of cycles since boot from the default timer.
Returns
The number of cycles
Definition at line 97 of file rte_cycles.h.
static uint64_t rte_get_timer_hz (void) [inline], [static]
Get the number of cycles in one second for the default timer.
Returns
The number of cycles in one second.
Definition at line 119 of file rte_cycles.h.
static void rte_delay_ms (unsigned ms) [inline], [static]
Wait at least ms milliseconds.
Parameters
ms The number of milliseconds to wait.
Definition at line 151 of file rte_cycles.h.
void rte_delay_us_block (unsigned int us)
Blocking delay function.
Parameters
us Number of microseconds to wait.
void rte_delay_us_sleep (unsigned int us)
Delay function that uses system sleep. Does not block the CPU core.
Parameters
us Number of microseconds to wait.
void rte_delay_us_callback_register (void(*)(unsigned int) userfunc)
Replace rte_delay_us with user defined function.
Parameters
userfunc User function which replaces rte_delay_us. rte_delay_us_block restores builtin block delay function.
Variable Documentation
void(* rte_delay_us) (unsigned int us) (unsigned int us) [extern]
Wait at least us microseconds. This function can be replaced with user-defined function.
See also
rte_delay_us_callback_register
Parameters
us The number of microseconds to wait.