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TLS: Implement support for write barrier.

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This commit is contained in:
Oran Agra
2019-08-19 12:18:25 +03:00
committed by Yossi Gottlieb
parent 5a47794606
commit 6b6294807c
11 changed files with 138 additions and 33 deletions
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9
src/networking.c
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@ -1305,19 +1305,18 @@ int handleClientsWithPendingWrites(void) {
/* If after the synchronous writes above we still have data to
* output to the client, we need to install the writable handler. */
if (clientHasPendingReplies(c)) {
int ae_flags = AE_WRITABLE;
int ae_barrier = 0;
/* For the fsync=always policy, we want that a given FD is never
* served for reading and writing in the same event loop iteration,
* so that in the middle of receiving the query, and serving it
* to the client, we'll call beforeSleep() that will do the
* actual fsync of AOF to disk. AE_BARRIER ensures that. */
* actual fsync of AOF to disk. the write barrier ensures that. */
if (server.aof_state == AOF_ON &&
server.aof_fsync == AOF_FSYNC_ALWAYS)
{
ae_flags |= AE_BARRIER;
ae_barrier = 1;
}
/* TODO: Handle write barriers in connection (also see tlsProcessPendingData) */
if (connSetWriteHandler(c->conn, sendReplyToClient) == C_ERR) {
if (connSetWriteHandlerWithBarrier(c->conn, sendReplyToClient, ae_barrier) == C_ERR) {
freeClientAsync(c);
}
}