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journal: add process wrapper #318

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Jul 17, 2025
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journal: add process wrapper #318

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10 changes: 10 additions & 0 deletions src/journal.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -858,6 +858,16 @@ impl JournalRef {
}
}

/// Get the journal state after receiving an an event when polling the journal file descriptor.
pub fn process(&mut self) -> Result<JournalWaitResult> {
match ffi_result(unsafe { ffi::sd_journal_process(self.as_ptr()) })? {
ffi::SD_JOURNAL_NOP => Ok(JournalWaitResult::Nop),
ffi::SD_JOURNAL_APPEND => Ok(JournalWaitResult::Append),
ffi::SD_JOURNAL_INVALIDATE => Ok(JournalWaitResult::Invalidate),
_ => Err(io::Error::new(InvalidData, "Failed to process journal")),
}
}

/// Wait for the next entry to appear. Returns `Ok(None)` if there were no
/// new entries in the given wait time.
/// Pass wait_time `None` to wait for an unlimited period for new entries.
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