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Check return of read() and write() to prevent g++ warning

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This commit is contained in:
Paul-Louis Ageneau
2021-03-26 20:33:36 +01:00
parent 10dcf36f3a
commit f61ca226fb
1 changed files with 6 additions and 2 deletions
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8
src/impl/tcptransport.cpp
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@ -64,7 +64,9 @@ int SelectInterrupter::prepare(fd_set &readfds, [[maybe_unused]] fd_set &writefd
return SOCKET_TO_INT(mDummySock) + 1;
#else
char dummy;
(void)::read(mPipeIn, &dummy, 1);
if (::read(mPipeIn, &dummy, 1) < 0 && errno != EAGAIN && errno != EWOULDBLOCK) {
PLOG_WARNING << "Reading from interrupter pipe failed, errno=" << errno;
}
FD_SET(mPipeIn, &readfds);
return mPipeIn + 1;
#endif
@ -79,7 +81,9 @@ void SelectInterrupter::interrupt() {
}
#else
char dummy = 0;
(void)::write(mPipeOut, &dummy, 1);
if (::write(mPipeOut, &dummy, 1) < 0 && errno != EAGAIN && errno != EWOULDBLOCK) {
PLOG_WARNING << "Writing to interrupter pipe failed, errno=" << errno;
}
#endif
}