|
1 | 1 | use std::ptr::NonNull; |
2 | 2 |
|
| 3 | +use super::newtypes::ProvenanceId; |
| 4 | + |
3 | 5 | use super::bindings::tsk_id_t; |
4 | 6 | use super::bindings::tsk_provenance_table_add_row; |
5 | 7 | use super::bindings::tsk_provenance_table_clear; |
@@ -55,6 +57,53 @@ impl ProvenanceTable { |
55 | 57 | }; |
56 | 58 | Ok(rv) |
57 | 59 | } |
| 60 | + |
| 61 | + pub fn timestamp(&self, row: ProvenanceId) -> Option<&str> { |
| 62 | + assert!( |
| 63 | + (self.as_ref().num_rows != 0 && self.as_ref().timestamp_length != 0) |
| 64 | + || (!self.as_ref().timestamp.is_null() |
| 65 | + && !self.as_ref().timestamp_offset.is_null()) |
| 66 | + ); |
| 67 | + |
| 68 | + // SAFETY: the previous assert checks the safety |
| 69 | + // requirements |
| 70 | + let timestamp_slice = unsafe { |
| 71 | + super::tsk_ragged_column_access( |
| 72 | + row, |
| 73 | + self.as_ref().timestamp, |
| 74 | + self.as_ref().num_rows, |
| 75 | + self.as_ref().timestamp_offset, |
| 76 | + self.as_ref().timestamp_length, |
| 77 | + ) |
| 78 | + }; |
| 79 | + match timestamp_slice { |
| 80 | + Some(tstamp) => std::str::from_utf8(tstamp).ok(), |
| 81 | + None => None, |
| 82 | + } |
| 83 | + } |
| 84 | + |
| 85 | + pub fn record(&self, row: ProvenanceId) -> Option<&str> { |
| 86 | + assert!( |
| 87 | + (self.as_ref().num_rows != 0 && self.as_ref().record_length != 0) |
| 88 | + || (!self.as_ref().record.is_null() && !self.as_ref().record_offset.is_null()) |
| 89 | + ); |
| 90 | + |
| 91 | + // SAFETY: the previous assert checks the safety |
| 92 | + // requirements |
| 93 | + let record_slice = unsafe { |
| 94 | + super::tsk_ragged_column_access( |
| 95 | + row, |
| 96 | + self.as_ref().record, |
| 97 | + self.as_ref().num_rows, |
| 98 | + self.as_ref().record_offset, |
| 99 | + self.as_ref().record_length, |
| 100 | + ) |
| 101 | + }; |
| 102 | + match record_slice { |
| 103 | + Some(rec) => std::str::from_utf8(rec).ok(), |
| 104 | + None => None, |
| 105 | + } |
| 106 | + } |
58 | 107 | } |
59 | 108 |
|
60 | 109 | impl Default for ProvenanceTable { |
|
0 commit comments