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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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18
fairmq/shmem/Manager.h
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@@ -277,8 +277,9 @@ class Manager
const int64_t userFlags,
RegionCallback callback,
RegionBulkCallback bulkCallback,
const std::string& path = "",
int flags = 0)
const std::string& path,
int flags,
fair::mq::RegionConfig cfg)
{
using namespace boost::interprocess;
try {
@@ -311,6 +312,19 @@ class Manager
auto r = fRegions.emplace(id, std::make_unique<Region>(fShmId, id, size, false, callback, bulkCallback, path, flags));
// LOG(debug) << "Created region with id '" << id << "', path: '" << path << "', flags: '" << flags << "'";
if (cfg.lock) {
LOG(debug) << "Locking region " << id << "...";
if (mlock(r.first->second->fRegion.get_address(), r.first->second->fRegion.get_size()) == -1) {
LOG(error) << "Could not lock region " << id << ". Code: " << errno << ", reason: " << strerror(errno);
}
LOG(debug) << "Successfully locked region " << id << ".";
}
if (cfg.zero) {
LOG(debug) << "Zeroing free memory of region " << id << "...";
memset(r.first->second->fRegion.get_address(), 0x00, r.first->second->fRegion.get_size());
LOG(debug) << "Successfully zeroed free memory of region " << id << ".";
}
fShmRegions->emplace(id, RegionInfo(path.c_str(), flags, userFlags, fShmVoidAlloc));
r.first->second->InitializeQueues();