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shm: check result of region acquisition

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This commit is contained in:
Alexey Rybalchenko
2021-04-09 11:40:36 +02:00
parent 2ca62d06db
commit 09fc47a289
5 changed files with 29 additions and 16 deletions
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22
fairmq/shmem/Region.h
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@@ -85,13 +85,23 @@ struct Region
LOG(debug) << "shmem: initialized file: " << fName;
fRegion = mapped_region(fFileMapping, read_write, 0, size, 0, flags);
} else {
if (fRemote) {
fShmemObject = shared_memory_object(open_only, fName.c_str(), read_write);
} else {
fShmemObject = shared_memory_object(create_only, fName.c_str(), read_write);
fShmemObject.truncate(size);
try {
if (fRemote) {
fShmemObject = shared_memory_object(open_only, fName.c_str(), read_write);
} else {
fShmemObject = shared_memory_object(create_only, fName.c_str(), read_write);
fShmemObject.truncate(size);
}
} catch(interprocess_exception& e) {
LOG(error) << "Failed " << (fRemote ? "opening" : "creating") << " shared_memory_object for region id '" << id << "': " << e.what();
throw;
}
try {
fRegion = mapped_region(fShmemObject, read_write, 0, 0, 0, flags);
} catch(interprocess_exception& e) {
LOG(error) << "Failed mapping shared_memory_object for region id '" << id << "': " << e.what();
throw;
}
fRegion = mapped_region(fShmemObject, read_write, 0, 0, 0, flags);
}
InitializeQueues();