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Showing content from http://www.ncbi.nlm.nih.gov/IEB/ToolBox/CPP_DOC/doxyhtml/request__control_8cpp_source.html below:

NCBI C++ ToolKit: src/corelib/request_control.cpp Source File

num_requests_allowed,

(num_requests_allowed, per_period, min_time_between_requests,

throttle_action, throttle_mode);

num_requests_allowed,

x_sleeptime = 0;

( !empty_period ) {

eNumRequestsPerPeriod,

(

> x_sleeptime ) {

eMinTimeBetweenRequests,

( x_sleeptime > 0 ) {

( !empty_period ) {

TTimeLine::iterator current;

CRequestRateControlException –.

#define NCBI_THROW(exception_class, err_code, message)

Generic macro to throw an exception, given the exception class, error code and message string.

TErrCode GetErrCode(void) const

virtual const char * GetErrCodeString(void) const

Get error code interpreted as text.

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

double Restart(void)

Return time elapsed since first Start() or last Restart() call (in seconds).

double Elapsed(void) const

Return time elapsed since first Start() or last Restart() call (in seconds).

long GetNanoSecondsAfterSecond(void) const

Get number of nanoseconds.

double GetAsDouble(void) const

Return time span as number of seconds.

const long kMicroSecondsPerSecond

Number of microseconds in one second.

long GetCompleteSeconds(void) const

Get number of complete seconds.

unsigned int m_NumRequests

Num requests per period.

void x_CleanTimeLine(TTime now)

Remove from the list of approved requests all expared items.

static void Sleep(CTimeSpan sleep_time)

Sleep for CTimeSpan.

EThrottleAction

What to do if exceeded the rate limits.

EThrottleMode

Throttle mode.

TTime m_MinTimeBetweenRequests

EThrottleAction m_ThrottleAction

CRequestRateControl(unsigned int num_requests_allowed, CTimeSpan per_period=CTimeSpan(1, 0), CTimeSpan min_time_between_requests=CTimeSpan(0, 0), EThrottleAction throttle_action=eDefault, EThrottleMode throttle_mode=eContinuous)

Constructor.

CStopWatch m_StopWatch

Stopwatch to measure elapsed time.

unsigned int m_NumRequestsAllowed

TTimeLine m_TimeLine

Vector of times of approvals.

static const unsigned int kNoLimit

Special value for maximum number of allowed requests per period.

virtual const char * GetErrCodeString(void) const override

Translate from the error code value to its string representation.

void Reset(unsigned int num_requests_allowed, CTimeSpan per_period=CTimeSpan(1, 0), CTimeSpan min_time_between_requests=CTimeSpan(0, 0), EThrottleAction throttle_action=eDefault, EThrottleMode throttle_mode=eContinuous)

Set new restriction for throttling mechanism.

bool x_Approve(EThrottleAction action, CTimeSpan *sleeptime)

TTime m_LastApproved

Last approve time.

@ eSleep

Sleep till the rate requirements are met & return.

@ eException

Throw an exception.

@ eDefault

in c-tor – eSleep; in Approve() – value set in c-tor

@ eErrCode

Return immediately with err code == FALSE.

@ eContinuous

Uses float time frame to check number of requests.

@ eDiscrete

Uses fixed time frame to check number of requests.

@ eMinTimeBetweenRequests

The time between two consecutive requests is too short;.

@ eNumRequestsPerPeriod

Number of requests per period exceeded;.

@ eNumRequestsMax

Maximum number of requests exceeded;.

unsigned int

A callback function used to compare two keys in a database.

void SleepMicroSec(unsigned long mc_sec, EInterruptOnSignal onsignal=eRestartOnSignal)

void SleepSec(unsigned long sec, EInterruptOnSignal onsignal=eRestartOnSignal)

Sleep.

static SLJIT_INLINE sljit_ins ms(sljit_gpr r, sljit_s32 d, sljit_gpr x, sljit_gpr b)

static SLJIT_INLINE sljit_ins st(sljit_gpr r, sljit_s32 d, sljit_gpr x, sljit_gpr b)

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