Epoll wait error: interrupted system call
WebNov 2, 2015 · 2. Interrupted system call : If a process caught a signal while the process was block in a "slow" system call, then the system call was interrupted. The problem … WebEpollWait() internally calls the system call epoll_wait. If epoll_wait receives any signal during execution, it sets errno to EINTR (Interrupted system call) and returns -1. …
Epoll wait error: interrupted system call
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WebDec 9, 2012 · 我们在利用 gdb 调试带有 epoll_wait select sem_wat 的多线程代码的时候可能会出现非正常返回 -1 的情况，错误原因是：Interrupted system call。. 这是由于. … WebThe system call epoll_wait() waits for events on the file descriptors associated with the given epoll instance: #include int epoll_wait (int epfd, struct epoll_event *events, int maxevents, int timeout); A call to epoll_wait() waits up to timeout milliseconds for events on the files associated with the epoll instance epfd.
Webselect() and pselect() allow a program to monitor multiple file descriptors, waiting until one or more of the file descriptors become "ready" for some class of I/O operation (e.g., input possible).A file descriptor is considered ready if it is possible to perform the corresponding I/O operation (e.g., read(2)) without blocking. The operation of select() and pselect() is … WebApr 20, 2024 · In the simple publisher/subscriber test applications, the above mentioned functions were executed in thread number 2. During debugging the main thread, in …
Web4. When the signal handler returns, control passes to the signal trampoline code. 5. The signal trampoline calls sigreturn(2), a system call that uses the information in the stack frame created in step 1 to restore the thread to its state before the signal handler was called. The thread's signal mask and alternate signal stack settings are ... WebJun 4, 2015 · Recently bump into problem on where calling function epoll_wait() return a negative value. ... errno) gives: Interrupted System Call. A simple digging finding a few suggestion on implementing a while loop with calling epoll_wait() function again. Feeling un-easy about the solution as well as wanted to understand more about the error, I …
WebApr 11, 2024 · The API provides the following syscalls for using epoll instances: epoll_create creates a new epoll instance in the kernel and returns an epoll file descriptor for this instance. epoll_ctl manipulates the interest list of an epoll instance. Available operations are EPOLL_ADD for adding a new FD to the list, EPOLL_MOD for modifying …
WebFeb 11, 2010 · 1 Answer. Sorted by: 13. You should check the epoll_wait return value, then if it's -1 compare errno to EINTR and, if so, retry the system call. This is usually done … gifts for recently divorced momWebJul 25, 2011 · EINTR ("Interrupted system call") is NOT a fatal error; it just means "please retry that system call again". So your code that calls epoll_wait() should detect it and just silently retry the call. Something like this: int rv; do { rv = epoll_wait(epfd, events, maxevents, timeout); } while (rv == -1 && errno == EINTR); gifts for recent college graduatesWebOct 12, 2024 · I run massdns with --processes 4, and all the 4 processes printed that message once and exited.. The reason why I suspect this was a premature exit, is that 3 out of 4 processes had already finished (their CPU usage was zero), and the size of one of the output files was 25% smaller than the three other, which were basically equal in size. gifts for recorder playersWebThe call will block until either: • a file descriptor becomes ready; • the call is interrupted by a signal handler; or • the timeout expires. Note that the timeout interval will be rounded … gifts for recent law school graduatesWeb4. When the signal handler returns, control passes to the signal trampoline code. 5. The signal trampoline calls sigreturn(2), a system call that uses the information in the stack frame created in step 1 to restore the thread to its state before the signal handler was called. The thread's signal mask and alternate signal stack settings are ... gifts for recovering drug addictsWebThe epoll_wait() system call waits for events on the epoll(7) instance referred to by the file descriptor epfd. The memory area pointed to by events will contain the events that will be … fsis appendix a cookingWebMar 28, 2024 · The system calls that were automatically restarted are ioctl, read, readv, write, writev, wait, and waitpid. As we’ve mentioned, the first five of these functions are … gifts for recovering patients