Ts2phc poll returns zero no events

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August undefined, 2024

Web[Linuxptp-devel] [PATCH v3 2/2] ts2phc: Add PTP as a source of ToD PTP IEEE 1588 stack for Linux Brought to you by: rcochran. Summary Files Reviews Support Code Mailing Lists

ts2phc "poll returns zero, no events" error #2 - Github

WebA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. WebJul 8, 2015 · later in code is written: ret = poll (pfd, 5, 0); With this I am able to receive data from all 5 sockets, and it is working. Functions is returning if socket received data. Problem occurs when I try to send data. I try to add in events POLLOUT and wait that poll function give me that socket is ready for sending. raycity rp discord

How to handle the Linux socket revents POLLERR, POLLHUP and POLLNVAL?

WebAug 20, 2024 · Linux PTP Using PHC Adjust Phase Quick Start Guide R31US0007EU0101 Rev.1.01 Aug 20, 2024 Page 4 2. System Requirements Linux PTP v3.0+ Linux kernel … WebDec 26, 2024 · poll函数讲解***events revents. poll提供的功能与select类似，不过在处理流设备时，它能够提供额外的信息。. events和revents是通过对代表各种事件的标志进行逻辑或运算构建而成的。. events包括要监视的事件，poll用已经发生的事件填充revents。. poll函数通过在revents中 ... WebRETURN VALUE top On success, poll() returns a nonnegative value which is the number of elements in the pollfds whose revents fields have been set to a nonzero value (indicating an event or an error). A return value of zero indicates that the system call timed out before any file descriptors became read. simple simon\u0027s east bernard

poll, ppoll - wait for some event on a file descriptor - Ubuntu

WebJul 26, 2024 · I'm using a framework which I give a socket to and it will call my callback if there is data to be read (or if timeout). However it keeps calling me as fast as my cpu can handle although there is no data to be read from the socket. [pid 16586] poll ( [ {fd=16, events=POLLIN}, {fd=17, events=POLLIN}], 2, 1000) = 2 ( [ {fd=16, revents=POLLIN ... WebRETURN VALUE On success, poll() returns a nonnegative value which is the number of elements in the pollfds whose revents fields have been set to a nonzero value (indicating an event or an error). A return value of zero indicates that the system call timed out before any file descriptors became read. raycity rfWebSymmetrically no operation is really necessary for POLLOUT, but you usually want to call the next write () as soon as possible. So as a rule of thumb POLLIN -> read, POLLOUT -> write. You should also reset you pollfd struct before calling poll again. fds [0].fd = sck; fds [0].events = POLLIN; fds [0].revents = 0; ret = poll ( fds, 1, 2000); //2 ... simple simon\u0027s tishomingo ok

"WebOct 30, 2024 · This data structure can be created, modified and deleted by three system calls. 1) epoll_create. The epoll instance is created by means of the epoll_create system call, which returns a file descriptor to the epoll instance. The signature of epoll_create is as follows:. #include int epoll_create(int size); The size argument is an … " - Ts2phc poll returns zero no events

Ts2phc poll returns zero no events

linuxptp/ts2phc_pps_sink.c at master · richardcochran/linuxptp

WebA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. WebMay 17, 2015 · The poll() function returns a non-zero positive value with no events from the sockets i have registered for. Ask Question Asked 7 years, 9 months ago. Modified 7 …

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WebSep 21, 2024 · The extts events increment normally. The source timestamp jumps 1.907774278 seconds, then 0.195537082 seconds. That is the problem. The source timestamps are produced by this code: /* * Returns the time on the PPS source device at which the most recent * PPS event was generated. WebJul 16, 2014 · For pipes and sockets, it depends on the operating system. Linux sets POLLHUP when the program on the writing end of a pipe closes the pipe, and sets POLLIN POLLHUP when the other end of a socket closed the socket, but POLLIN only for a socket shutdown. Recent *BSD set POLLIN POLLUP when the writing end of a pipe closes …

WebHi, I'm trying to get GPIO Interrrupt functionality working using sysfs and poll calls. The problem appears to be that the poll call is always returnng immediately and is not triggering on the actualy rising edge. I have configured the kernel for this GPIO to be an input which does work correctly. I've also configured the GPIO (114) correctly ... WebNov 10, 2024 · When running ts2phc together with a program that reads the PHC (e.g. phc2ys or chrony with a PHC refclock), ts2phc will log "poll returns zero, no events" …

WebJan 30, 2024 · The ts2phc program works (or should work) all by itself. > Command : > ts2phc -f ts2phc.cfg -m -s generic > ts2phc[503.770]: poll returns zero, no events > … WebIf the value of fd/msgid is less than 0, events is ignored and revents is set to 0 in that entry on return from poll(). In each pollfd structure, poll() clears the revents member except that where the application requested a report on a condition by setting one of the bits of events listed above, poll() sets the corresponding bit in revents if the requested condition is true.

WebThe semantics of read(2) depend on whether the eventfd counter currently has a nonzero value and whether the EFD_SEMAPHORE flag was specified when creating the eventfd file descriptor: * If EFD_SEMAPHORE was not specified and the eventfd counter has a nonzero value, then a read(2) returns 8 bytes containing that value, and the counter's value is reset …

WebA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. raycity slrWebNov 23, 2024 · The ts2phc program will introduce clock synchronization which is orthogonal to the direction in which PPS is emitted (from the master to the slave). To have a more consistent terminology, we can avoid using the ultra-generic term "master" and replace it with "PPS source", which describes the role of the data structure in the new interpretation ... simple simon\u0027s west columbiaWebIf it returns 0, then the event will be dropped from the queue, but the internal state will still be updated. This allows selective filtering of dynamically arriving events. ... (e.g. pressing Ctrl-C), it will be delivered to the application at the next event poll. There is one caveat when dealing with the SDL_QuitEvent event type. simple simon\u0027s bonners ferryWebThe default is 0 (no correction).-1--ts2phc.extts_polarity. The polarity of the external PPS signal, either "rising" or "falling". Some PHC devices always time stamp both edges. … simple simon\u0027s wagoner okWebUp to maxevents are returned by epoll_wait (). The maxevents argument must be greater than zero. The timeout argument specifies the number of milliseconds that epoll_wait () will block. Time is measured against the CLOCK_MONOTONIC clock. A call to epoll_wait () will block until either: • a file descriptor delivers an event; • the call is ... simple simon\u0027s thompson fallsWebDec 20, 2024 · If none of the defined events occurs on any selected file descriptor, poll() waits at least timeout milliseconds for an event to occur on any of the selected file descriptors. If the value of timeout is 0, poll() returns immediately. If the value of timeout is -1, poll() blocks until a requested event occurs or until the call is interrupted. raycity sqlWebSome of the events may not be applicable to all file types. For example, the POLLPRI event usually is not generated when polling a non-STREAMS character device.POLLIN, POLLRDNORM, POLLRDBAND, and POLLPRI are set even if the message is of zero length.. poll(2) checks each file descriptor for the requested events and, on return, indicates … raycity real x