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Only need to do syscall if something was submitted

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This commit is contained in:
Norman Maurer 2020-08-30 13:40:52 +02:00
parent 37944ccffd
commit f6e6f543c0
1 changed files with 5 additions and 4 deletions
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9
transport-native-io_uring/src/main/java/io/netty/channel/uring/IOUringSubmissionQueue.java
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@ -288,10 +288,11 @@ final class IOUringSubmissionQueue {
public void submit() { public void submit() {
int submitted = flushSqe(); int submitted = flushSqe();
logger.trace("Submitted: {}", submitted); logger.trace("Submitted: {}", submitted);
if (submitted > 0) {
int ret = Native.ioUringEnter(ringFd, submitted, 0, 0); int ret = Native.ioUringEnter(ringFd, submitted, 0, 0);
if (ret < 0) { if (ret < 0) {
throw new RuntimeException("ioUringEnter syscall"); throw new RuntimeException("ioUringEnter syscall");
}
} }
} }