python: use PyO3 for Python bindings

Not sure it's the best way but it's way simpler to maintain than plain
Rust FFI.

Cargo.lock

@@ -60,6 +60,14 @@ dependencies = [
  "vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cloudabi"
+version = "0.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.2.0"
@@ -68,6 +76,15 @@ dependencies = [
  "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ctor"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.22"
@@ -87,6 +104,16 @@ dependencies = [
  "miniz_oxide 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ghost"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.10"
@@ -95,6 +122,52 @@ dependencies = [
  "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "indoc"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "indoc-impl 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro-hack 0.5.15 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "indoc-impl"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro-hack 0.5.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unindent 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "inventory"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ctor 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ghost 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "inventory-impl 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "inventory-impl"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "itoa"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "lexical-core"
 version = "0.6.7"
@@ -113,6 +186,14 @@ name = "libc"
 version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "lock_api"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "memchr"
 version = "2.3.3"
@@ -168,6 +249,134 @@ dependencies = [
  "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "parking_lot"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lock_api 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot_core 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "paste"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "paste-impl 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro-hack 0.5.15 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "paste-impl"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro-hack 0.5.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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+
+[[package]]
+name = "pyironring"
+version = "0.1.0"
+dependencies = [
+ "pyo3 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rusted_iron_ring 0.1.0",
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+
+[[package]]
+name = "pyo3"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "indoc 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "paste 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pyo3cls 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unindent 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "version_check 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
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+
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+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pyo3cls"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "pyo3-derive-backend 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "redox_syscall"
+version = "0.1.56"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "regex"
+version = "1.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "regex-syntax 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rustc_version"
 version = "0.2.3"
@@ -183,7 +392,6 @@ dependencies = [
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "encoding_rs 0.8.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "flate2 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
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  "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -194,6 +402,11 @@ name = "ryu"
 version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "scopeguard"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "semver"
 version = "0.9.0"
@@ -207,6 +420,39 @@ name = "semver-parser"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "serde"
+version = "1.0.110"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde_derive 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.110"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.20 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ryu 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
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+
+[[package]]
+name = "smallvec"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "static_assertions"
 version = "0.3.4"
@@ -217,6 +463,16 @@ name = "strsim"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "syn"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "textwrap"
 version = "0.11.0"
@@ -230,6 +486,16 @@ name = "unicode-width"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "unicode-xid"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
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 name = "vec_map"
 version = "0.8.1"
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Cargo.toml

@@ -5,17 +5,19 @@ authors = ["Dece <shgck@pistache.land>"]
 edition = "2018"
 
 [lib]
-name = "rir"
+name = "ironring"
 crate-type = ["lib", "cdylib"]
 
 [[bin]]
-name = "ironring"
+name = "rir"
 
 [dependencies]
 clap = "2.33"
 encoding_rs = "0.8"
 flate2 = "1.0"
-libc = "0.2"
 nom = "5"
 num-bigint = "0.2"
 num-traits = "0.2"
+
+[workspace]
+members = ["bindings/python"]

bindings/python/.gitignore

@@ -0,0 +1,2 @@
+/target
+Cargo.lock

bindings/python/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "pyironring"
+version = "0.1.0"
+authors = ["dece <shgck@pistache.land>"]
+edition = "2018"
+
+[lib]
+name = "pyironring"
+crate-type = ["cdylib"]
+
+[dependencies]
+rusted_iron_ring = { path = "../.." }
+pyo3 = { version = "0.9", features = ["extension-module"] }

bindings/python/src/lib.rs

@@ -0,0 +1,32 @@
+use std::collections::HashMap;
+
+use pyo3::wrap_pymodule;
+use pyo3::prelude::*;
+
+#[pymodule]
+fn name_hashes(_py: Python, m: &PyModule) -> PyResult<()> {
+    use ironring::name_hashes::*;
+
+    #[pyfn(m, "hash")]
+    fn py_hash(_py: Python, s: &str) -> PyResult<u32> {
+        Ok(hash(s))
+    }
+
+    #[pyfn(m, "hash_as_string")]
+    fn py_hash_as_string(_py: Python, h: u32) -> PyResult<String> {
+        Ok(hash_as_string(h))
+    }
+
+    #[pyfn(m, "load_name_map")]
+    fn py_load_name_map(_py: Python, path: &str) -> PyResult<HashMap<String, String>> {
+        Ok(load_name_map(path)?)
+    }
+
+    Ok(())
+}
+
+#[pymodule]
+fn pyironring(_py: Python, m: &PyModule) -> PyResult<()> {
+    m.add_wrapped(wrap_pymodule!(name_hashes))?;
+    Ok(())
+}

ffi_tests.py

@@ -1,17 +1,17 @@
 #!/usr/bin/env python3
 """Import hash from the rir dynamic lib."""
 
-import ctypes
+import pyironring
-import sys
 
 
-lib = ctypes.cdll.LoadLibrary(sys.argv[1])
+path = "/chr/c0000.anibnd.dcx"
+hash_u32 = pyironring.name_hashes.hash(path)
+print('Hash for path "{}" is {:X}'.format(path, hash_u32))
 
-s = ctypes.c_char_p(b"/chr/c0000.anibnd.dcx")
+hash_u32_str = pyironring.name_hashes.hash_as_string(hash_u32)
-lib.nam_hash.restype = ctypes.c_uint32
+print("Formatted by Rust: {}".format(hash_u32_str))
-h = lib.nam_hash(s)
-print(hex(h))
 
-lib.nam_hash_as_string.restype = ctypes.c_char_p
+hm = pyironring.name_hashes.load_name_map("res/namefile.txt")
-h_str = lib.nam_hash_as_string(h)
+#print("Hash map for DS1 names: {}".format(hm))
-print(h_str)
+wrong_hm = pyironring.name_hashes.load_name_map("res/nonexistent.txt")
+#print("Loading a non-existent names: {}".format(wrong_hm))

pyironring.so

@@ -0,0 +1 @@
+target/debug/libpyironring.so

src/bin/rir.rs

@@ -5,11 +5,11 @@ use std::process;
 
 use clap::{App, AppSettings, Arg, ArgMatches, SubCommand};
 
-use rir::{name_hashes, unpackers};
+use ironring::{name_hashes, unpackers};
 
 fn main() {
     let default_namefilepath: &str = &get_default_namefilepath();
-    let matches = App::new("Iron Ring")
+    let matches = App::new("Rusted Iron Ring")
         .setting(AppSettings::ArgRequiredElseHelp)
         .subcommand(SubCommand::with_name("bhd")
             .about("Extracts BHD/BDT contents")

src/name_hashes.rs

@@ -21,11 +21,6 @@ pub fn hash_as_string(h: u32) -> String {
     format!("{:08X}", h)
 }
 
-//#[no_mangle]
-//pub extern "C" fn nam_hash_as_string(h: u32) -> *mut libc::c_char {
-//    hash_as_string(h)
-//}
-
 /// Load a namelist file into a map.
 ///
 /// Format for the input file should be the following for every line:
@@ -42,22 +37,6 @@ pub fn load_name_map(path: &str) -> Result<HashMap<String, String>, Error> {
     Ok(names)
 }
 
-mod rir_ffi {
-    use std::ffi;
-    use super::*;
-
-    #[no_mangle]
-    pub extern "C" fn nam_hash(s: *const libc::c_char) -> u32 {
-        let c_s = unsafe { assert!(!s.is_null()); ffi::CStr::from_ptr(s) };
-        hash(c_s.to_str().unwrap())
-    }
-
-    #[no_mangle]
-    pub extern "C" fn nam_hash_as_string(h: u32) -> *mut libc::c_char {
-        ffi::CString::new(hash_as_string(h)).unwrap().into_raw()
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;

src/utils/ffi.rs

@@ -1,12 +0,0 @@
-use std::ffi;
-
-/// Free a String owned by librir.
-#[no_mangle]
-pub extern "C" fn ffi_free_string(s: *mut libc::c_char) {
-    unsafe {
-        if s.is_null() {
-            return;
-        }
-        ffi::CString::from_raw(s)
-    }
-}