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Merge pull request #71 from kubo39/somaxconn

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Get the listen backlog size from net.core.somaxconn on Linux
merged-on-behalf-of: Sönke Ludwig <s-ludwig@users.noreply.github.com>
This commit is contained in:
The Dlang Bot 2018-05-13 09:44:42 +02:00 committed by GitHub
parent 745e4ea2c6 e68f1425a9
commit ca56b31566
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 19 additions and 1 deletions
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20
source/eventcore/drivers/posix/sockets.d
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@ -217,7 +217,7 @@ final class PosixEventDriverSockets(Loop : PosixEventLoop) : EventDriverSockets
invalidateSocket();
return;
}
if (listen(sockfd, 128) != 0) {
if (listen(sockfd, getBacklogSize()) != 0) {
invalidateSocket();
return;
}
@ -955,3 +955,21 @@ private int getSocketError()
version (Windows) return WSAGetLastError();
else return errno;
}
private int getBacklogSize()
@trusted @nogc nothrow {
int backlog = 128;
version (linux)
{
import core.stdc.stdio : fclose, fopen, fscanf;
auto somaxconn = fopen("/proc/sys/net/core/somaxconn", "re");
if (somaxconn)
{
int tmp;
if (fscanf(somaxconn, "%d", &tmp) == 1)
backlog = tmp;
fclose(somaxconn);
}
}
return backlog;
}