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add mlock/zero options to unmanaged region

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This commit is contained in:
Alexey Rybalchenko
2021-05-07 14:11:58 +02:00
parent c85d6e079c
commit 857aa84fa3
9 changed files with 87 additions and 40 deletions
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20
fairmq/zeromq/UnmanagedRegion.h
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@@ -16,6 +16,8 @@
#include <cstddef> // size_t
#include <string>
#include <sys/mman.h> // mlock
namespace fair::mq::zmq
{
@@ -30,7 +32,8 @@ class UnmanagedRegion final : public fair::mq::UnmanagedRegion
int64_t userFlags,
RegionCallback callback,
RegionBulkCallback bulkCallback,
FairMQTransportFactory* factory = nullptr)
FairMQTransportFactory* factory,
fair::mq::RegionConfig cfg)
: fair::mq::UnmanagedRegion(factory)
, fCtx(ctx)
, fId(fCtx.RegionCount())
@@ -39,7 +42,20 @@ class UnmanagedRegion final : public fair::mq::UnmanagedRegion
, fUserFlags(userFlags)
, fCallback(callback)
, fBulkCallback(bulkCallback)
{}
{
if (cfg.lock) {
LOG(debug) << "Locking region " << fId << "...";
if (mlock(fBuffer, fSize) == -1) {
LOG(error) << "Could not lock region " << fId << ". Code: " << errno << ", reason: " << strerror(errno);
}
LOG(debug) << "Successfully locked region " << fId << ".";
}
if (cfg.zero) {
LOG(debug) << "Zeroing free memory of region " << fId << "...";
memset(fBuffer, 0x00, fSize);
LOG(debug) << "Successfully zeroed free memory of region " << fId << ".";
}
}
UnmanagedRegion(const UnmanagedRegion&) = delete;
UnmanagedRegion operator=(const UnmanagedRegion&) = delete;