usleep



#include int usleep(useconds_t usec); feature test macro requirements for glibc (see feature_test_macros()): usleep(): since glibc .: (_xopen_source >= ) && ! (_posix_c_source >= l) || glibc since .: _default_source || glibc versions <= .: _bsd_source before  the usleep() function suspends execution of the calling thread for (at least) usec microseconds. the sleep may be lengthened slightly by any system the usleep() function shall cause the calling thread to be suspended from execution until either the number of realtime microseconds specified by the argument useconds has elapsed or a signal is delivered to the calling thread and its action is to invoke a signalcatching function or to terminate the process. the suspension 

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description. la fonction usleep() suspend l'exécution du programme appelant durant (au moins) usec microsecondes. la période de sommeil peut être allongée par la charge système, par le temps passé à traiter l'appel de fonction, ou par la granularité des temporisations système. the idea of sleep and usleep is that by letting the cpu run a few idle cycles so the other programs can have some cycles run of their own. what results in better response times and lower overall systemload. so if you have to wait for something, go to sleep for a few seconds instead of occupying the cpu while doing absolute  usleep is a secure cpap compliance monitoring solution that enables hmes to streamline their sleep program to achieve better business and patient outcomes.

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usleep()suspend processing for interval of time. syntax #include int usleep( useconds_t useconds ); service program name: qpssrv default public authority: use threadsafe: yes. the usleep() function suspends a thread for the number of microseconds specified by the of useconds parameter. (because  the usleep() function suspends the calling thread until either the number of realtime microseconds specified by period has elapsed or a signal is delivered to the calling thread. the suspension time may be longer than requested because the argument value is rounded up to an integer multiple of the sleep resolution,  i think that both sleep and usleep use the nanosleep function,. they may do, or they may not. i'm not aware of any justification in the c and posix standards for that supposition. so my question is: why not using sleep() that does exactly the same thing (ie: sleeps for sec) ? do we gain in performance  please provide your username and password to sign in. username. remember my username. password. forgot your password? click here. sign in · resmed. all rights reserved, |, terms of service, |, privacy policy, |, usleep, powered by usleep compliance engine. {}. ##loc[ok]##. {}. ##loc[ok]## 

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