Datasets locking/v7 #12366
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Datasets locking/v7 #12366
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In a recent warning reported by scan-build, datasets were found to be
using a blocking call in a critical section.
datasets.c:187:12: warning: Call to blocking function 'fgets' inside of critical section [unix.BlockInCriticalSection]
187 | while (fgets(line, (int)sizeof(line), fp) != NULL) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
datasets.c:292:12: warning: Call to blocking function 'fgets' inside of critical section [unix.BlockInCriticalSection]
292 | while (fgets(line, (int)sizeof(line), fp) != NULL) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
datasets.c:368:12: warning: Call to blocking function 'fgets' inside of critical section [unix.BlockInCriticalSection]
368 | while (fgets(line, (int)sizeof(line), fp) != NULL) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
datasets.c:442:12: warning: Call to blocking function 'fgets' inside of critical section [unix.BlockInCriticalSection]
442 | while (fgets(line, (int)sizeof(line), fp) != NULL) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
datasets.c:512:12: warning: Call to blocking function 'fgets' inside of critical section [unix.BlockInCriticalSection]
512 | while (fgets(line, (int)sizeof(line), fp) != NULL) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 warnings generated.
These calls are blocking in the multi tenant mode where several tenants
may be trying to load the same dataset in parallel.
In a single tenant mode, this operation is performed as a part of a
single thread before the engine startup.
In order to evade the warning and simplify the code, the initial file
reading is moved to Rust with this commit with a much simpler handling
of dataset and datarep.
Bug 7398
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #12366 +/- ##
==========================================
- Coverage 82.54% 82.50% -0.05%
==========================================
Files 912 913 +1
Lines 258028 258074 +46
==========================================
- Hits 212988 212917 -71
- Misses 45040 45157 +117
Flags with carried forward coverage won't be shown. Click here to find out more. |
|
Information: QA ran without warnings. Pipeline 24154 |
victorjulien
requested changes
Jan 13, 2025
| } | ||
|
|
||
| #[no_mangle] | ||
| pub unsafe extern "C" fn ProcessStringDatasets( |
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should we handle all other types as well in rust to fully address the issue?
| // Defined in util-debug.c | ||
| /// cbindgen:ignore | ||
| extern { | ||
| pub fn CallbackFatalErrorOnInit(arg: *const c_char); |
There was a problem hiding this comment.
@jasonish should we create a 'public' SCFatalErrorOnInit instead?
Also, would like it to behave like FatalError and SCLog... to take a format string.
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Link to ticket: https://redmine.openinfosecfoundation.org/issues/7398
Previous PR: #12361
Changes since v6:
SV_BRANCH=OISF/suricata-verify#2225