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| author | Dimitri Staessens <dimitri@ouroboros.rocks> | 2026-01-18 14:35:50 +0100 |
|---|---|---|
| committer | Sander Vrijders <sander@ouroboros.rocks> | 2026-01-19 08:31:30 +0100 |
| commit | c51611c27f766bb4f413485bf8a12bca02e98669 (patch) | |
| tree | 61fe6a862d550aa1cbd6c9d7c964f171ebe84afa /include | |
| parent | 60b04305d70614580b4f883c0a147507edef3779 (diff) | |
| download | ouroboros-c51611c27f766bb4f413485bf8a12bca02e98669.tar.gz ouroboros-c51611c27f766bb4f413485bf8a12bca02e98669.zip | |
lib: Call mlock() on the shared memory buffers
This prevents them from swapping to disk and killing performance. It
also enhances security a little bit by reducing the risk of sensitive
(even encrypted) data being paged out and captured.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
Diffstat (limited to 'include')
| -rw-r--r-- | include/ouroboros/shm_rbuff.h | 2 | ||||
| -rw-r--r-- | include/ouroboros/shm_rdrbuff.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/ouroboros/shm_rbuff.h b/include/ouroboros/shm_rbuff.h index 423a40a0..a1d2816a 100644 --- a/include/ouroboros/shm_rbuff.h +++ b/include/ouroboros/shm_rbuff.h @@ -52,6 +52,8 @@ uint32_t shm_rbuff_get_acl(struct shm_rbuff * rb); void shm_rbuff_fini(struct shm_rbuff * rb); +int shm_rbuff_mlock(struct shm_rbuff * rb); + int shm_rbuff_write(struct shm_rbuff * rb, size_t idx); diff --git a/include/ouroboros/shm_rdrbuff.h b/include/ouroboros/shm_rdrbuff.h index 4f9a215a..30dc3ff7 100644 --- a/include/ouroboros/shm_rdrbuff.h +++ b/include/ouroboros/shm_rdrbuff.h @@ -42,6 +42,8 @@ void shm_rdrbuff_destroy(struct shm_rdrbuff * rdrb); void shm_rdrbuff_purge(void); +int shm_rdrbuff_mlock(struct shm_rdrbuff * rdrb); + /* Returns block index, a ptr and du_buff. */ ssize_t shm_rdrbuff_alloc(struct shm_rdrbuff * rdrb, size_t count, |