C thread sleep

Author: t | 2025-04-25

Implementing Sleeping Threads in C. In C, implementing sleeping threads involves putting a thread to sleep for a given time period, offering a strategic way to manage By using c thread sleep, you ensure that this thread efficiently waits for events, reducing the load on the CPU and improving responsiveness. C Thread Example: Mastering Multithreading Basics. C Thread Sleep Mechanisms

C Multi-Threading: Understanding the Sleeping Threads

Look. Don't forget the '&' (address-of) symbol. Old. SET_PROCESS_FUNC(Module::sub_process); New. SET_PROCESS(&Gain2::subProcess); TransmitStatusChange TransmitStatusChange() has been replaced with setStreaming(). Less typing, more readable... Old getPin(PN_OUTPUT1)->TransmitStatusChange( SampleClock(), ST_RUN ); New pinOutput.setStreaming(true); Old getPin(PN_OUTPUT1)->TransmitStatusChange( SampleClock(), ST_STATIC ); New pinOutput.setStreaming(false); Sleep Mode Previously, after checking your input pins were silent, you implemented sleep mode with a special process method to filled the output buffers with silent samples. Once that was done you asked the host to put the module to sleep... // every module has an output buffer of approx. 100 samples. // before deactivating module, need to fill that buffer with silence. // "static_count" is counting out those 100 samples. void Module::sub_process_static(long buffer_offset, long sampleFrames ) { sub_process(buffer_offset, sampleFrames); static_count = static_count - sampleFrames; if( static_count { CallHost(seaudioMasterSleepMode); } } Although this is still necessary. The new SDK does it for you. Your module no longer needs any special code. You don't need to port that code to SDK V3. If you don't want automatic sleep mode, or need to handle it manually you can disable automatic sleep mode... setSleep(false); Summary That was the quick guide to porting to SDK3. Any further questions please post to the SynthEdit SDK group at yahoo. SEM Supported Features Cross platform. Written in standard C++. Also useable from C. Arbitrary number of Audio, MIDI, and Control inputs and outputs. support arbitrary sample rates. No plugin functions are re-entrant or asynchronous. Plugins require no locks or thread-aware code. Communication between Audio and Graphics code is arbitrated by the

Sleeping in a Thread (C / POSIX Threads) - Stack Overflow

Neopixel");12 thread::sleep(Duration::from_millis(step.duration));13 }14 }15}Notice that the status cannot be compared until we implement PartialEq, and assigning it requires Clone and Copy, so we derive them:1#[derive(Clone, Copy, PartialEq)]2enum DeviceStatus {Now, we are going to implement the function that is run in the other thread. This function will change the status every 10 seconds. Since this is for the sake of testing the reporting capability, we won't be doing anything fancy to change the status, just moving from one status to the next and back to the beginning:1fn change_status(status: &mut u8) -> ! {2 loop {3 thread::sleep(Duration::from_secs(10));4 if let Ok(current) = DeviceStatus::try_from(*status) {5 match current {6 DeviceStatus::Ok => *status = DeviceStatus::WifiError as u8,7 DeviceStatus::WifiError => *status = DeviceStatus::MqttError as u8,8 DeviceStatus::MqttError => *status = DeviceStatus::Ok as u8,9 }10 }11 }12}With the two functions in place, we just need to spawn two threads, one with each one of them. We will use a thread scope that will take care of joining the threads that we spawn:1thread::scope(|scope| {2 scope.spawn(|| report_status(&status, rmt_channel, led_pin));3 scope.spawn(|| change_status(&mut status));4});Compiling this code will result in errors. It is the blessing/curse of the borrow checker, which is capable of figuring out that we are sharing memory in an unsafe way. The status can be changed in one thread while being read by the other. We could use a mutex, as we did in the previous C++ code, and wrap it in an Arc to be able to use a reference in each thread, but there is an easier way to achieve the same goal: We can use an atomic type. (use std::sync::atomic::AtomicU8;)1let status = &AtomicU8::new(0u8);We modify report_status() to use the reference to the atomic type and add use std::sync::atomic::Ordering::Relaxed;:1fn report_status(2 status: &AtomicU8,3 rmt_channel: impl Peripheralimpl RmtChannel>,4 led_pin: impl Peripheralimpl OutputPin>,5) -> ! {6 let mut neopixel =7 Ws2812Esp32RmtDriver::new(rmt_channel, led_pin).expect("Unable to talk to ws2812");8 let mut prev_status = DeviceStatus::WifiError; // Anything but Ok9 let mut sequence: Vec = vec![];10 loop {11 if let Ok(status) = DeviceStatus::try_from(status.load(Relaxed)) {And change_status(). Notice that in this case, thanks to the interior mutability, we don't need a mutable reference but a regular one. Also, we need to specify the guaranties in terms of how multiple operations will be ordered. Since we don't have any other atomic operations in the code, we can go with the weakest level – i.e., Relaxed:1fn change_status(status: &AtomicU8) -> ! {2 loop {3 thread::sleep(Duration::from_secs(10));4 if let Ok(current) = DeviceStatus::try_from(status.load(Relaxed)) {5 match current {6 DeviceStatus::Ok => status.store(DeviceStatus::WifiError as u8, Relaxed),7 DeviceStatus::WifiError => status.store(DeviceStatus::MqttError as u8, Relaxed),8 DeviceStatus::MqttError => status.store(DeviceStatus::Ok as u8, Relaxed),9 }10 }11 }12}Finally, we have to change the lines in which we spawn the threads to reflect the changes that we have introduced:1scope.spawn(|| report_status(status, rmt_channel, led_pin));2scope.spawn(|| change_status(status));You can use cargo r to compile the code and run it on your board. The lights should be displaying the sequences, which should change every 10 seconds.Getting the noise levelIt is time to interact with a temperature sensor… Just kidding. This time, we are going to use a sound sensor. No more temperature measurements

c - thread and Sleep - Stack Overflow

Name: Source: lumion.pro.v11-cgp-tpc.exe Static PE information: section name: .adata Source: initial sample Static PE information: section name: entropy: 7.98697872083 Source: initial sample Static PE information: section name: entropy: 7.94409388118 Source: initial sample Static PE information: section name: entropy: 7.79720566066 Source: initial sample Static PE information: section name: .data entropy: 7.74718140928 Persistence and Installation Behavior: Source: C:\Users\alfredo\Desktop\lumion.pro.v11-cgp-tpc.exe File created: C:\Users\alfredo\AppData\Local\Temp\Acknowledge -BRK-.FON Jump to dropped file Source: C:\Users\alfredo\Desktop\lumion.pro.v11-cgp-tpc.exe File created: C:\Users\alfredo\AppData\Local\Temp\bassmod.dll Jump to dropped file Drops files with a non-matching file extension (content does not match file extension) Source: C:\Users\alfredo\Desktop\lumion.pro.v11-cgp-tpc.exe File created: C:\Users\alfredo\AppData\Local\Temp\Acknowledge -BRK-.FON Jump to dropped file Malware Analysis System Evasion: Found dropped PE file which has not been started or loaded Source: C:\Users\alfredo\Desktop\lumion.pro.v11-cgp-tpc.exe Dropped PE file which has not been started: C:\Users\alfredo\AppData\Local\Temp\Acknowledge -BRK-.FON Jump to dropped file May sleep (evasive loops) to hinder dynamic analysis Source: C:\Windows\System32\svchost.exe TID: 5760 Thread sleep time: -30000s >= -30000s Queries disk information (often used to detect virtual machines) Source: C:\Windows\System32\svchost.exe File opened: PhysicalDrive0 HIPS / PFW / Operating System Protection Evasion: System process connects to network (likely due to code injection or exploit) Source: C:\Windows\System32\svchost.exe Domain query: g.live.com Language, Device and Operating System Detection: Queries the volume information (name, serial number etc) of a device Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\edb.chk VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\edb.log VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\edb.chk VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\edb.log VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\edb.log VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\edb.log VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\edb.chk VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\qmgr.db VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\qmgr.jfm VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\qmgr.db VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ProgramData\Microsoft\Network\Downloader\qmgr.db VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ VolumeInformation Source: C:\Windows\System32\svchost.exe Queries volume information: C:\ VolumeInformation. Implementing Sleeping Threads in C. In C, implementing sleeping threads involves putting a thread to sleep for a given time period, offering a strategic way to manage

multithreading - c thread sleep without freezing current thread

In a public forum where any Flickr member may reply. Posted 98 months ago. ( permalink ) JOSEPH FRANK ---- IRTELMAN says: kmacgray:Yes, I understand that - thank you also, and I fully agree - but you seem to be dissatisfied being here and thus you want this thread to close --- so why not stop contributing to it with uncalled for seeming negativity towards me, as being the author of this thread, and to some of my message !!! Posted 98 months ago. ( permalink ) MabelAmber***Pluto5339***MysteryGuest says: Overuse of exclamation marks also makes for an unpleasant reading experience. Posted 98 months ago. ( permalink ) kmacgray says: JOSEPH FRANK ---- IRTELMAN:The reason I'm asking staff to close the thread has nothing to do with you. It's redundant and the discussion is best focused to the existing topic, where staff are participating and replying to members. Consolidation of duplicate topics is something that staff commonly does. Posted 98 months ago. ( permalink ) JOSEPH FRANK ---- IRTELMAN says: kmacgray:kmcgray (and Mabel) OK ! -- That's better - and I do agree and that does makes common sense. Especially as my specific issue (so far, heh) is currently resolved by Flickr (but holding my breath, heh) . I suggest that I HEREIN ADVISE anyone else here to go to the other original primary Phishing thread via link below: www.flickr.com/help/forum/en-us/72157680978425636/page3/and cease posting on THIS thread here.and MABEL -- perhaps -- but the excessive over use of EMOTICONS by today's internet generation is even more of an unpleasant reading experience. Also the incessant use of single numbers and letters to replace certain words in sentences ie: C U later, (or) how R U (or) go 2 sleep I rest my case ! Posted 98 months ago. ( permalink ) JOSEPH FRANK ----

c - Windows thread sleep and wake from another thread

Show modules used by specified PROCESSExecution Options: -d[time] --delay delay time in milliseconds before executing command -r[err] --repeat repeat command in a cycle, while (%ERRORLEVEL% > err) -n --number %ERRORLEVEL% = negated number of matched processes -x[a] --exit wait for the process completion (exit) 'a' flag waits for all processes, -d sets time-out -@[file_name] read arguments from specified file or from standard input after processing the command lineArguments can contain '*' and '?' wildcards.Use return code (%ERRORLEVEL%) in batch files: 0 - process found (negated number of processes if -n is specified) 1 - empty result set, 2 - programm errorFormat string can use the following placeholders to control the output %a affinity, %d creation time, %c[time] % cpu %f full path, %e elapsed cpu time, %i process id %l command line, %n image name, %m memory (K) %p priority, %r parent id, %s signature %t thread count, %u user name, %v version Specify an optional performance data collecting time in milliseconds after the %c switch, default is 500ms.Examples: pv myprocess.exe get process ID for myprocess.exe. pv -e get extended list of running processes. pv -k sleep* kill all processes starting with "sleep" pv -m -e explorer.exe get extended information about explorer's modules pv -u oleaut*.dll list of all processes that use matching dll pv -ph w*.exe set priority to hight for all matching processes pv explorer.exe -l"*/S" looks for explorer process with /S switch pv -r0 -d2000 calc.exe "2>nul" checks every 2 seconds if calc.exe is running pv --user:SYSTEM

c - Will a thread sleep if told to sleep for zero seconds? - Stack

#1 into the unsignaled state."); Console::ReadLine(); for (int i = 1; i Name = "Thread_" + i; t->Start(); } Thread::Sleep(250); for (int i = 0; i Set(); Thread::Sleep(250); } Console::WriteLine("\r\nAll threads are now waiting on AutoResetEvent #2."); for (int i = 0; i Set(); Thread::Sleep(250); } // Visual Studio: Uncomment the following line. //Console::Readline(); }};void main(){ Example::Demo();}/* This example produces output similar to the following:Press Enter to create three threads and start them.The threads wait on AutoResetEvent #1, which was createdin the signaled state, so the first thread is released.This puts AutoResetEvent #1 into the unsignaled state.Thread_1 waits on AutoResetEvent #1.Thread_1 is released from AutoResetEvent #1.Thread_1 waits on AutoResetEvent #2.Thread_3 waits on AutoResetEvent #1.Thread_2 waits on AutoResetEvent #1.Press Enter to release another thread.Thread_3 is released from AutoResetEvent #1.Thread_3 waits on AutoResetEvent #2.Press Enter to release another thread.Thread_2 is released from AutoResetEvent #1.Thread_2 waits on AutoResetEvent #2.All threads are now waiting on AutoResetEvent #2.Press Enter to release a thread.Thread_2 is released from AutoResetEvent #2.Thread_2 ends.Press Enter to release a thread.Thread_1 is released from AutoResetEvent #2.Thread_1 ends.Press Enter to release a thread.Thread_3 is released from AutoResetEvent #2.Thread_3 ends. */using System;using System.Threading;// Visual Studio: Replace the default class in a Console project with // the following class.class Example{ private static AutoResetEvent event_1 = new AutoResetEvent(true); private static AutoResetEvent event_2 = new AutoResetEvent(false); static void Main() { Console.WriteLine("Press Enter to create three threads and start them.\r\n" + "The threads wait on AutoResetEvent #1, which was created\r\n" + "in the signaled state, so the first thread is released.\r\n" + "This puts AutoResetEvent #1 into the unsignaled state."); Console.ReadLine(); for (int i = 1; i Imports System.Threading' Visual Studio: Replace the default class in a Console project with ' the following class.Class Example Private Shared event_1 As New AutoResetEvent(True) Private Shared event_2 As New AutoResetEvent(False) _ Shared Sub Main() Console.WriteLine("Press Enter to create three threads and start them." & vbCrLf & _ "The threads wait on AutoResetEvent #1, which was created" & vbCrLf & _ "in the signaled state, so the first thread is released." & vbCrLf & _ "This puts AutoResetEvent #1 into the unsignaled. Implementing Sleeping Threads in C. In C, implementing sleeping threads involves putting a thread to sleep for a given time period, offering a strategic way to manage