Fix memory leak

CHANGELOG.md

@@ -0,0 +1,100 @@
+### 0.1.23 minimap2 2.28
++ Fixed memory leak when not dropping mm_idx_t properly. This is done by adding in syntactic sugar in minimap2-sys @jguhlin
+
+### 0.1.22 minimap2 2.28
+#### Changes
++ Fixed a memory segfault when re-using a thread local buffer. Not sure why it occurs, but this fix seems to solve it.
+
+### 0.1.21 minimap2 2.28
+Contributors to this release: @mbhall88 @rob-p @Sam-Sims @charlesgregory @PB-DB
+#### Breaking Changes
++ Map now returns Arc String's to reduce memory allocation for large and/or repetitive jobs
++ map now takes an additional argument, query_name: Option<&[u8]>, possibly solves [#75](https://github.com/jguhlin/minimap2-rs/issues/75) (@rob-p @mbhall88 @jguhlin)
++ Arc the Index, to prevent double-frees, solves [#71](https://github.com/jguhlin/minimap2-rs/issues/71)
++ Map file now passes in query name, which should help with [#75](https://github.com/jguhlin/minimap2-rs/issues/75)
++ Supplementary flag now better detected (@rob-p)
++ FIX: Cigar string missing softclip operation (@Sam-Sims)
+
+#### Migration Guide
++ Make all setting changes before calling a with_index, with_seq's function
++ Change all map calls to include a query name, or None if not needed
+
+### Other Changes
++ Add ergonomic functions n_seq and get_seq.
++ Better docs on applying presets, solves [#84](https://github.com/jguhlin/minimap2-rs/issues/84)
++ Better detection of target arch c_char's and ptr's, solves [#82](https://github.com/jguhlin/minimap2-rs/issues/82)
++ Support for M1 Mac compilation and addition of github workflows to test it, solving [#81](https://github.com/jguhlin/minimap2-rs/issues/81)
++ Rayon test, so some support, closes [#5](https://github.com/jguhlin/minimap2-rs/issues/5)
++ Static str's and now static CStr's
++ FIX: memory leak due to sequences allocated by minimap2 not being freed @charlesgregory
++ Add Send + Sync to Aligner, along with unit test @PB-DB
++ Experimental Android support (tested on aarch64 and x86_64), solves [#66](https://github.com/jguhlin/minimap2-rs/issues/66)
++ Added flag and option documents
++ Added with_gap_open penalty ergonomic function
+
+### 0.1.20 minimap2 2.28
++ Fix htslib errors. No update to -sys crate needed.
+
+### 0.1.19 minimap2 2.28
++ Fix memory leak by @charlesgregory
+
+### 0.1.18 minimap2 2.28
++ Update to minimap2 v2.28 @jguhlin
++ Support for lrhqae preset @jguhlin
+
+### 0.1.17 minimap2 2.27
+* Mark bam::Record objects as supplementary. #52  @PB-DB
+* Only use rust-htslib/curl when curl feature is enabled. #53 @PB-DB
+* Update to minimap2 v2.27 @jguhlin
+* Switch to needletail for reading fast files (features map-file) @jguhlin
+* Convert functions to take slices of vectors instead of refs to vecs `&[Vec<u8>]` instead of `&Vec<Vec<u8>>` @jguhlin
+* _breaking_ Curl is no longer a default option for htslib, please re-enable it as needed with cargo.toml features
+* _breaking_ Now using needletail for map-files, enabled by default. However, compression algorithms are disabled. Please enable with cargo.toml features
+* Experimental rayon support
+* aligner.with_cigar_clipping() to add soft clipping to the CIGAR vec (with_cigar() still adds to only the string, following the minimap2 outputs for PAF)
+* _breaking_ .with_threads(_) is now .with_index_threads(_) to make it more clear
+
+### 0.1.16 minimap2 2.26
+* Much better cross compilation support thanks to @Adoni5
+
+### 0.1.15 minimap2 2.26 
+* Compilation on aarch64 thanks to @leiste375
+* README corrections thanks to @wdecoster
+* Better support for static builds / linking
+* Update fffx to a version that uses bytelines without tokio. Drastically reduces compile times and dependency tree.
+
+### 0.1.14 minimap2 2.26
+* Memory leak fixed by @Adoni5
+* Updated deps
+
+### 0.1.13 minimap2 2.26
+* Add with_seq to support indexing a single sequence (as per mappy: https://github.com/lh3/minimap2/blob/master/python/mappy.pyx#L115)
+* minimap2-rs: update rust-htslib deps
+* simdutf8 now optional dependency requiring map-file feature to be enabled
+* Support soft-clipping string in CIGAR. WARNING: Does not support hard clipping. Please open an issue if you need this.
+* Update minimap to 2.26
+* Not convinced SSE41/SSE2 are working properly. Recommend simde.
+
+### 0.1.11 
+* HTS lib: add support for optional quality scores by @eharr
+
+### 0.1.10
+* HTS lib support by @eharr
+* HTS lib: Output sam/bam files by @eharr
+* More tests by @eharr
+* Display impl for Strand thanks to @ahcm
+* Update minimap2-sys to latest version by @jguhlin
+* -sys crate mm2fast added as additional backend by @jguhlin
+* zlib dep changes by @jguhlin (hopefully now it is more portable and robust)
+* -sys crate now supports SIMDe
+
+## 0.1.9
+* Thanks for @Adoni5 for switching to builder pattern, and @eharr for adding additional fields to alignment.
+* Do not require libclang for normal compilation.
+## 0.1.8
+* Multithreading support (use less raw pointers, and treat more like rust Struct's)
+## 0.1.7
+* use libc instead of std:ffi::c_int as well
+## 0.1.6 
+* Support slightly older versions of rustc by using libc:: rather than std::ffi for c_char (Thanks dwpeng!)
+* Use fffx module for fasta/q parsing

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "minimap2"
-version = "0.1.22+minimap2.2.28"
+version = "0.1.23+minimap2.2.28"
 edition = "2021"
 authors = ["Joseph Guhlin <[email protected]>"]
 license = "MIT OR Apache-2.0"
@@ -31,14 +31,14 @@ libc = "0.2"
 needletail = { version = "0.6", optional = true, default-features = false}
 
 # Dep for development
-minimap2-sys = { path = "./minimap2-sys", version = "0.1.20+minimap2.2.28" }
+minimap2-sys = { path = "./minimap2-sys" , version = "0.1.20+minimap2.2.28" }
 # minimap2-sys = "0.1.19"
-rust-htslib = { version = "0.48", default-features = false, optional = true }
+rust-htslib = { version = "0.49", default-features = false, optional = true }
 
 [dev-dependencies]
 rayon = "1.10"
 crossbeam = "0.8.4"
-clap = { version = "4.5.21", features = ["derive"] }
+clap = { version = "4.5.23", features = ["derive"] }
 needletail = { version = "0.6", default-features = false}
 
 # The end-user should decide this...
@@ -52,7 +52,7 @@ needletail = { version = "0.6", default-features = false}
 
 [features]
 default = ["map-file"]
-map-file = ["needletail"] #, "simdutf8"]
+map-file = ["needletail"]
 htslib = ['rust-htslib']
 simde = ["minimap2-sys/simde"]
 zlib-ng = ["minimap2-sys/zlib-ng"]

README.md

@@ -20,6 +20,7 @@ Tested with rustc 1.82.0 and nightly. So probably a good idea to upgrade before
 ## Minimap2 Version Table
 | minimap2-rs | minimap2 |
 |-------------|----------|
+| 0.1.23      | 2.28     |
 | 0.1.22      | 2.28     |
 | 0.1.21      | 2.28     |
 | 0.1.20      | 2.28     |
@@ -334,103 +335,7 @@ See [customization](#customization) for how to use these.
 | `MM_I_NO_NAME`    | `4`    | Do not store sequence names in the index.                |
 
 # Changelog
-### 0.1.22 minimap2 2.28
-#### Changes
-+ Fixed a memory segfault when re-using a thread local buffer. Not sure why it occurs, but this fix seems to solve it.
-
-### 0.1.21 minimap2 2.28
-Contributors to this release: @mbhall88 @rob-p @Sam-Sims @charlesgregory @PB-DB
-#### Breaking Changes
-+ Map now returns Arc String's to reduce memory allocation for large and/or repetitive jobs
-+ map now takes an additional argument, query_name: Option<&[u8]>, possibly solves [#75](https://github.com/jguhlin/minimap2-rs/issues/75) (@rob-p @mbhall88 @jguhlin)
-+ Arc the Index, to prevent double-frees, solves [#71](https://github.com/jguhlin/minimap2-rs/issues/71)
-+ Map file now passes in query name, which should help with [#75](https://github.com/jguhlin/minimap2-rs/issues/75)
-+ Supplementary flag now better detected (@rob-p)
-+ FIX: Cigar string missing softclip operation (@Sam-Sims)
-
-#### Migration Guide
-+ Make all setting changes before calling a with_index, with_seq's function
-+ Change all map calls to include a query name, or None if not needed
-
-### Other Changes
-+ Add ergonomic functions n_seq and get_seq.
-+ Better docs on applying presets, solves [#84](https://github.com/jguhlin/minimap2-rs/issues/84)
-+ Better detection of target arch c_char's and ptr's, solves [#82](https://github.com/jguhlin/minimap2-rs/issues/82)
-+ Support for M1 Mac compilation and addition of github workflows to test it, solving [#81](https://github.com/jguhlin/minimap2-rs/issues/81)
-+ Rayon test, so some support, closes [#5](https://github.com/jguhlin/minimap2-rs/issues/5)
-+ Static str's and now static CStr's
-+ FIX: memory leak due to sequences allocated by minimap2 not being freed @charlesgregory
-+ Add Send + Sync to Aligner, along with unit test @PB-DB
-+ Experimental Android support (tested on aarch64 and x86_64), solves [#66](https://github.com/jguhlin/minimap2-rs/issues/66)
-+ Added flag and option documents
-+ Added with_gap_open penalty ergonomic function
-
-### 0.1.20 minimap2 2.28
-+ Fix htslib errors. No update to -sys crate needed.
-
-### 0.1.19 minimap2 2.28
-+ Fix memory leak by @charlesgregory
-
-### 0.1.18 minimap2 2.28
-+ Update to minimap2 v2.28 @jguhlin
-+ Support for lrhqae preset @jguhlin
-
-### 0.1.17 minimap2 2.27
-* Mark bam::Record objects as supplementary. #52  @PB-DB
-* Only use rust-htslib/curl when curl feature is enabled. #53 @PB-DB
-* Update to minimap2 v2.27 @jguhlin
-* Switch to needletail for reading fast files (features map-file) @jguhlin
-* Convert functions to take slices of vectors instead of refs to vecs `&[Vec<u8>]` instead of `&Vec<Vec<u8>>` @jguhlin
-* _breaking_ Curl is no longer a default option for htslib, please re-enable it as needed with cargo.toml features
-* _breaking_ Now using needletail for map-files, enabled by default. However, compression algorithms are disabled. Please enable with cargo.toml features
-* Experimental rayon support
-* aligner.with_cigar_clipping() to add soft clipping to the CIGAR vec (with_cigar() still adds to only the string, following the minimap2 outputs for PAF)
-* _breaking_ .with_threads(_) is now .with_index_threads(_) to make it more clear
-
-### 0.1.16 minimap2 2.26
-* Much better cross compilation support thanks to @Adoni5
-
-### 0.1.15 minimap2 2.26 
-* Compilation on aarch64 thanks to @leiste375
-* README corrections thanks to @wdecoster
-* Better support for static builds / linking
-* Update fffx to a version that uses bytelines without tokio. Drastically reduces compile times and dependency tree.
-
-### 0.1.14 minimap2 2.26
-* Memory leak fixed by @Adoni5
-* Updated deps
-
-### 0.1.13 minimap2 2.26
-* Add with_seq to support indexing a single sequence (as per mappy: https://github.com/lh3/minimap2/blob/master/python/mappy.pyx#L115)
-* minimap2-rs: update rust-htslib deps
-* simdutf8 now optional dependency requiring map-file feature to be enabled
-* Support soft-clipping string in CIGAR. WARNING: Does not support hard clipping. Please open an issue if you need this.
-* Update minimap to 2.26
-* Not convinced SSE41/SSE2 are working properly. Recommend simde.
-
-### 0.1.11 
-* HTS lib: add support for optional quality scores by @eharr
-
-### 0.1.10
-* HTS lib support by @eharr
-* HTS lib: Output sam/bam files by @eharr
-* More tests by @eharr
-* Display impl for Strand thanks to @ahcm
-* Update minimap2-sys to latest version by @jguhlin
-* -sys crate mm2fast added as additional backend by @jguhlin
-* zlib dep changes by @jguhlin (hopefully now it is more portable and robust)
-* -sys crate now supports SIMDe
-
-## 0.1.9
-* Thanks for @Adoni5 for switching to builder pattern, and @eharr for adding additional fields to alignment.
-* Do not require libclang for normal compilation.
-## 0.1.8
-* Multithreading support (use less raw pointers, and treat more like rust Struct's)
-## 0.1.7
-* use libc instead of std:ffi::c_int as well
-## 0.1.6 
-* Support slightly older versions of rustc by using libc:: rather than std::ffi for c_char (Thanks dwpeng!)
-* Use fffx module for fasta/q parsing
+See [CHANGELOG.md](CHANGELOG.md)
 
 # Funding
 ![Genomics Aotearoa](info/genomics-aotearoa.png)

minimap2-sys/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "minimap2-sys"
-version = "0.1.20+minimap2.2.28"
+version = "0.1.21+minimap2.2.28"
 edition = "2021"
 links = "libminimap2"
 authors = ["Joseph Guhlin <[email protected]>"]

minimap2-sys/README.md

@@ -19,6 +19,9 @@ mm2-fast and minimap2 have diverged. At this point mm2-fast is no longer support
 * Can we decouple from pthread? This would allow Windows and (possibly) WASM compilation.
 
 ## Changelog
+### 0.1.21 minimap2.2.28
+Syntactic sugar for mm_idx_t to support Drop, Deref, and DerefMut
+
 ### 0.1.20 minimap2.2.28
 * Move Drop impl to -sys crate
 

minimap2-sys/src/lib.rs

@@ -8,6 +8,8 @@ include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
 #[cfg(all(not(feature = "bindgen")))]
 include!("bindings.rs");
 
+use std::{mem::MaybeUninit, ops::{DerefMut, Deref}};
+
 unsafe impl Send for mm_idx_t {}
 unsafe impl Send for mm_idx_reader_t {}
 unsafe impl Send for mm_mapopt_t {}
@@ -18,8 +20,35 @@ impl Drop for mm_idx_t {
     }
 }
 
+pub struct MmIdx {
+    pub idx: *mut mm_idx_t,
+}
+
+impl From<*mut mm_idx_t> for MmIdx {
+    fn from(idx: *mut mm_idx_t) -> Self {
+        MmIdx { idx }
+    }
+}
 
-use std::mem::MaybeUninit;
+impl Drop for MmIdx {
+    fn drop(&mut self) {
+        unsafe { mm_idx_destroy(self.idx) };
+    }
+}
+
+impl Deref for MmIdx {
+    type Target = mm_idx_t;
+
+    fn deref(&self) -> &Self::Target {
+        unsafe { &*self.idx }
+    }
+}
+
+impl DerefMut for MmIdx {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        unsafe { &mut *self.idx }
+    }
+}
 
 impl Default for mm_mapopt_t {
     fn default() -> Self {

src/htslib.rs

@@ -303,9 +303,8 @@ pub struct SeqMetaData {
     pub is_alt: bool,
 }
 
-#[derive(Debug)]
 pub struct MMIndex {
-    pub inner: Arc<*mut mm_ffi::mm_idx_t>,
+    pub inner: Arc<super::MmIdx>,
 }
 
 impl MMIndex {
@@ -345,8 +344,7 @@ impl MMIndex {
 impl From<&Aligner<Built>> for MMIndex {
     fn from(aligner: &Aligner<Built>) -> Self {
         MMIndex {
-            // inner: aligner.idx.unwrap(),
-            inner: std::sync::Arc::clone(&aligner.idx.as_ref().unwrap()),
+            inner: std::sync::Arc::clone(aligner.idx.as_ref().unwrap()),
         }
     }
 }