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Avoiding losing channel number; implement EOF check.

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This commit is contained in:
Thomas Harte
2025-11-20 17:26:44 -05:00
parent 51eea4dea3
commit 3196840b05
1 changed files with 11 additions and 3 deletions
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14
Machines/Enterprise/HostFSHandler.cpp
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@@ -63,13 +63,14 @@ void HostFSHandler::perform(const uint8_t function, uint8_t &a, uint16_t &bc, ui
function == uint8_t(EXOS::Function::CreateChannel) ?
Storage::FileMode::Rewrite : Storage::FileMode::ReadWrite;
set_error(EXOS::Error::NoError);
try {
channels_.emplace(a, bundle_->open(name, mode));
set_error(EXOS::Error::NoError);
} catch(Storage::FileHolder::Error) {
if(mode == Storage::FileMode::ReadWrite) {
try {
channels_.emplace(a, bundle_->open(name, Storage::FileMode::Read));
set_error(EXOS::Error::NoError);
} catch(Storage::FileHolder::Error) {
set_error(EXOS::Error::FileDoesNotExist);
}
@@ -77,6 +78,8 @@ void HostFSHandler::perform(const uint8_t function, uint8_t &a, uint16_t &bc, ui
set_error(EXOS::Error::FileAlreadyExists);
}
}
// TODO: FileAlreadyOpen, FileAlreadyExists.
} break;
// Page 54.
@@ -99,8 +102,13 @@ void HostFSHandler::perform(const uint8_t function, uint8_t &a, uint16_t &bc, ui
break;
}
set_error(EXOS::Error::NoError);
set_c(channel->second.get());
const auto next = channel->second.get();
if(!channel->second.eof()) {
set_error(EXOS::Error::NoError);
set_c(next);
} else {
set_error(EXOS::Error::EndOfFileMetInRead);
}
break;
}
}