build all variations in CI to keep track of what works

.github/workflows/rust.yml

@@ -13,32 +13,77 @@ env:
   RUSTFLAGS: "-Dwarnings"
 
 jobs:
-  build:
+  build-gnu-apt:
-
     runs-on: ubuntu-latest
-
     steps:
       - uses: actions/checkout@v4
 
       - name: Update repos
         run: sudo apt-get update -qq
-      - name: Install rust toolchain
+      - name: Install toolchain
-        run: sudo apt-get install -qy cargo rust-clippy
+        run: sudo apt-get install -qy cargo rust-clippy liblzma-dev gcc make pkgconf
-      - name: install lzma
-        run: sudo apt-get install -qy liblzma-dev
-      - name: install gcc
-        run: sudo apt-get install -qy gcc make
 
       - name: Run Clippy
         run: cargo clippy
 
+      - name: build
+        run: cargo build
+
       - name: generate bindings
         run: ./generate-binding.sh
       - name: check that generated files did not change
         run: output=$(git status --porcelain) && [ -z "$output" ]
 
-      - name: build
+      - name: build example -- glibc release
-        run: cargo build
+        run: cd example && make clean && make TARGET=aarch64-unknown-linux-gnu PROFILE=release
+      - name: build example -- glibc debug
+        run: cd example && make clean && make TARGET=aarch64-unknown-linux-gnu PROFILE=debug
 
-      - name: build example
+  # this _should_ have been -stable, but there is a bug when running in the container ("Invalid cross-device link")
-        run: cd example && make
+  build-musl-beta:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Update repos
+        run: sudo apt-get update -qq
+      - name: Install toolchain
+        run: sudo apt-get install -qy liblzma-dev gcc make pkgconf musl-dev musl-tools rustup
+      - name: install rust target
+        run: rustup default beta && rustup target add aarch64-unknown-linux-musl && rustup component add rust-src && rustup update
+
+      - name: build example -- musl release
+        run: cd example && make clean && make TARGET=aarch64-unknown-linux-musl PROFILE=release MUSL=1 CARGO="rustup run beta cargo"
+      - name: build example -- musl debug
+        run: cd example && make clean && make TARGET=aarch64-unknown-linux-musl PROFILE=debug MUSL=1 CARGO="rustup run beta cargo"
+
+  build-size-gnu-unstable:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Update repos
+        run: sudo apt-get update -qq
+      - name: Install toolchain
+        run: sudo apt-get install -qy liblzma-dev gcc make pkgconf rustup
+      - name: install rust targets
+        run: rustup toolchain install nightly -t aarch64-unknown-linux-gnu -c rust-src --no-self-update
+
+      - name: build example -- glibc size-optimized
+        run: cd example && make clean && make TARGET=aarch64-unknown-linux-gnu PROFILE=size-optimized CARGO="rustup run nightly cargo"
+
+
+  build-size-musl-unstable:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Update repos
+        run: sudo apt-get update -qq
+      - name: Install toolchain
+        run: sudo apt-get install -qy liblzma-dev gcc make pkgconf musl-dev musl-tools rustup
+      - name: install rust targets
+        run: rustup toolchain install nightly -t aarch64-unknown-linux-musl -c rust-src --no-self-update
+
+      - name: build example -- musl size-optimized
+        run: cd example && make clean && make TARGET=aarch64-unknown-linux-musl PROFILE=size-optimized MUSL=1 LTO=1 CARGO="rustup run nightly cargo"

Cargo.lock

@@ -49,19 +49,20 @@ dependencies = [
 
 [[package]]
 name = "anstyle-wincon"
-version = "3.0.6"
+version = "3.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2109dbce0e72be3ec00bed26e6a7479ca384ad226efdd66db8fa2e3a38c83125"
+checksum = "ca3534e77181a9cc07539ad51f2141fe32f6c3ffd4df76db8ad92346b003ae4e"
 dependencies = [
  "anstyle",
+ "once_cell",
  "windows-sys",
 ]
 
 [[package]]
 name = "bitflags"
-version = "2.7.0"
+version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1be3f42a67d6d345ecd59f675f3f012d6974981560836e938c22b424b85ce1be"
+checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
 
 [[package]]
 name = "bitvec"
@@ -77,22 +78,20 @@ dependencies = [
 
 [[package]]
 name = "bzip2"
-version = "0.5.0"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bafdbf26611df8c14810e268ddceda071c297570a5fb360ceddf617fe417ef58"
+checksum = "49ecfb22d906f800d4fe833b6282cf4dc1c298f5057ca0b5445e5c209735ca47"
 dependencies = [
  "bzip2-sys",
- "libc",
 ]
 
 [[package]]
 name = "bzip2-sys"
-version = "0.1.11+1.0.8"
+version = "0.1.13+1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "736a955f3fa7875102d57c82b8cac37ec45224a07fd32d58f9f7a186b6cd4cdc"
+checksum = "225bff33b2141874fe80d71e07d6eec4f85c5c216453dd96388240f96e1acc14"
 dependencies = [
  "cc",
- "libc",
  "pkg-config",
 ]
 
@@ -117,9 +116,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.9"
+version = "1.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8293772165d9345bdaaa39b45b2109591e63fe5e6fbc23c6ff930a048aa310b"
+checksum = "8691782945451c1c383942c4874dbe63814f61cb57ef773cda2972682b7bb3c0"
 dependencies = [
  "jobserver",
  "libc",
@@ -134,18 +133,18 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "4.5.26"
+version = "4.5.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8eb5e908ef3a6efbe1ed62520fb7287959888c88485abe072543190ecc66783"
+checksum = "eccb054f56cbd38340b380d4a8e69ef1f02f1af43db2f0cc817a4774d80ae071"
 dependencies = [
  "clap_builder",
 ]
 
 [[package]]
 name = "clap_builder"
-version = "4.5.26"
+version = "4.5.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96b01801b5fc6a0a232407abc821660c9c6d25a1cafc0d4f85f29fb8d9afc121"
+checksum = "efd9466fac8543255d3b1fcad4762c5e116ffe808c8a3043d4263cd4fd4862a2"
 dependencies = [
  "anstream",
  "anstyle",
@@ -176,15 +175,15 @@ dependencies = [
 
 [[package]]
 name = "equivalent"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
 [[package]]
 name = "errno"
-version = "0.3.10"
+version = "0.3.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33d852cb9b869c2a9b3df2f71a3074817f01e1844f839a144f5fcef059a4eb5d"
+checksum = "976dd42dc7e85965fe702eb8164f21f450704bdde31faefd6471dba214cb594e"
 dependencies = [
  "libc",
  "windows-sys",
@@ -198,9 +197,9 @@ checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
 
 [[package]]
 name = "flate2"
-version = "1.0.35"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c936bfdafb507ebbf50b8074c54fa31c5be9a1e7e5f467dd659697041407d07c"
+checksum = "7ced92e76e966ca2fd84c8f7aa01a4aea65b0eb6648d72f7c8f3e2764a67fece"
 dependencies = [
  "crc32fast",
  "miniz_oxide",
@@ -214,20 +213,21 @@ checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
 
 [[package]]
 name = "getrandom"
-version = "0.2.15"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
+checksum = "73fea8450eea4bac3940448fb7ae50d91f034f941199fcd9d909a5a07aa455f0"
 dependencies = [
  "cfg-if",
  "libc",
+ "r-efi",
  "wasi",
 ]
 
 [[package]]
 name = "hashbrown"
-version = "0.15.2"
+version = "0.15.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf151400ff0baff5465007dd2f3e717f3fe502074ca563069ce3a6629d07b289"
+checksum = "84b26c544d002229e640969970a2e74021aadf6e2f96372b9c58eff97de08eb3"
 
 [[package]]
 name = "heck"
@@ -237,9 +237,9 @@ checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "indexmap"
-version = "2.7.0"
+version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62f822373a4fe84d4bb149bf54e584a7f4abec90e072ed49cda0edea5b95471f"
+checksum = "cea70ddb795996207ad57735b50c5982d8844f38ba9ee5f1aedcfb708a2aa11e"
 dependencies = [
  "equivalent",
  "hashbrown",
@@ -253,36 +253,37 @@ checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
 
 [[package]]
 name = "itoa"
-version = "1.0.14"
+version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d75a2a4b1b190afb6f5425f10f6a8f959d2ea0b9c2b1d79553551850539e4674"
+checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
 [[package]]
 name = "jobserver"
-version = "0.1.32"
+version = "0.1.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48d1dbcbbeb6a7fec7e059840aa538bd62aaccf972c7346c4d9d2059312853d0"
+checksum = "38f262f097c174adebe41eb73d66ae9c06b2844fb0da69969647bbddd9b0538a"
 dependencies = [
+ "getrandom",
  "libc",
 ]
 
 [[package]]
 name = "libc"
-version = "0.2.169"
+version = "0.2.172"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
+checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.4.15"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d26c52dbd32dccf2d10cac7725f8eae5296885fb5703b261f7d0a0739ec807ab"
+checksum = "cd945864f07fe9f5371a27ad7b52a172b4b499999f1d97574c9fa68373937e12"
 
 [[package]]
 name = "log"
-version = "0.4.22"
+version = "0.4.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
+checksum = "13dc2df351e3202783a1fe0d44375f7295ffb4049267b0f3018346dc122a1d94"
 
 [[package]]
 name = "memchr"
@@ -292,43 +293,49 @@ checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
 [[package]]
 name = "miniz_oxide"
-version = "0.8.2"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ffbe83022cedc1d264172192511ae958937694cd57ce297164951b8b3568394"
+checksum = "3be647b768db090acb35d5ec5db2b0e1f1de11133ca123b9eacf5137868f892a"
 dependencies = [
  "adler2",
 ]
 
 [[package]]
 name = "once_cell"
-version = "1.20.2"
+version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
+checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
 name = "pkg-config"
-version = "0.3.31"
+version = "0.3.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "953ec861398dccce10c670dfeaf3ec4911ca479e9c02154b3a215178c5f566f2"
+checksum = "7edddbd0b52d732b21ad9a5fab5c704c14cd949e5e9a1ec5929a24fded1b904c"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.93"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60946a68e5f9d28b0dc1c21bb8a97ee7d018a8b322fa57838ba31cc878e22d99"
+checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.38"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e4dccaaaf89514f546c693ddc140f729f958c247918a13380cccc6078391acc"
+checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
 dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "r-efi"
+version = "5.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
+
 [[package]]
 name = "radium"
 version = "0.7.0"
@@ -347,9 +354,9 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.38.43"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a78891ee6bf2340288408954ac787aa063d8e8817e9f53abb37c695c6d834ef6"
+checksum = "c71e83d6afe7ff64890ec6b71d6a69bb8a610ab78ce364b3352876bb4c801266"
 dependencies = [
  "bitflags",
  "errno",
@@ -360,24 +367,24 @@ dependencies = [
 
 [[package]]
 name = "ryu"
-version = "1.0.18"
+version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
+checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
 
 [[package]]
 name = "serde"
-version = "1.0.217"
+version = "1.0.219"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02fc4265df13d6fa1d00ecff087228cc0a2b5f3c0e87e258d8b94a156e984c70"
+checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.217"
+version = "1.0.219"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a9bf7cf98d04a2b28aead066b7496853d4779c9cc183c440dbac457641e19a0"
+checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -386,9 +393,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.135"
+version = "1.0.140"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b0d7ba2887406110130a978386c4e1befb98c674b4fba677954e4db976630d9"
+checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
 dependencies = [
  "itoa",
  "memchr",
@@ -407,8 +414,9 @@ dependencies = [
 
 [[package]]
 name = "servicepoint"
-version = "0.13.2"
+version = "0.14.0"
-source = "git+https://git.berlin.ccc.de/servicepoint/servicepoint/?branch=next#531d4e6b4a368dc126cab9dc12b64d2ca8a81694"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ce70bae3641ccafdeb9832ac367efd51243e0708ef35151ad8c2c4ee578aa4a"
 dependencies = [
  "bitvec",
  "bzip2",
@@ -442,9 +450,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "syn"
-version = "2.0.96"
+version = "2.0.101"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d5d0adab1ae378d7f53bdebc67a39f1f151407ef230f0ce2883572f5d8985c80"
+checksum = "8ce2b7fc941b3a24138a0a7cf8e858bfc6a992e7978a068a5c760deb0ed43caf"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -459,11 +467,10 @@ checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
 
 [[package]]
 name = "tempfile"
-version = "3.15.0"
+version = "3.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a8a559c81686f576e8cd0290cd2a24a2a9ad80c98b3478856500fcbd7acd704"
+checksum = "7437ac7763b9b123ccf33c338a5cc1bac6f69b45a136c19bdd8a65e3916435bf"
 dependencies = [
- "cfg-if",
  "fastrand",
  "getrandom",
  "once_cell",
@@ -473,18 +480,18 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "2.0.11"
+version = "2.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d452f284b73e6d76dd36758a0c8684b1d5be31f92b89d07fd5822175732206fc"
+checksum = "567b8a2dae586314f7be2a752ec7474332959c6460e02bde30d702a66d488708"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "2.0.11"
+version = "2.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26afc1baea8a989337eeb52b6e72a039780ce45c3edfcc9c5b9d112feeb173c2"
+checksum = "7f7cf42b4507d8ea322120659672cf1b9dbb93f8f2d4ecfd6e51350ff5b17a1d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -493,9 +500,9 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.8.19"
+version = "0.8.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1ed1f98e3fdc28d6d910e6737ae6ab1a93bf1985935a1193e68f93eeb68d24e"
+checksum = "05ae329d1f08c4d17a59bed7ff5b5a769d062e64a62d34a3261b219e62cd5aae"
 dependencies = [
  "serde",
  "serde_spanned",
@@ -505,31 +512,38 @@ dependencies = [
 
 [[package]]
 name = "toml_datetime"
-version = "0.6.8"
+version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0dd7358ecb8fc2f8d014bf86f6f638ce72ba252a2c3a2572f2a795f1d23efb41"
+checksum = "3da5db5a963e24bc68be8b17b6fa82814bb22ee8660f192bb182771d498f09a3"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "toml_edit"
-version = "0.22.22"
+version = "0.22.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ae48d6208a266e853d946088ed816055e556cc6028c5e8e2b84d9fa5dd7c7f5"
+checksum = "310068873db2c5b3e7659d2cc35d21855dbafa50d1ce336397c666e3cb08137e"
 dependencies = [
  "indexmap",
  "serde",
  "serde_spanned",
  "toml_datetime",
+ "toml_write",
  "winnow",
 ]
 
 [[package]]
-name = "unicode-ident"
+name = "toml_write"
-version = "1.0.14"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
+checksum = "bfb942dfe1d8e29a7ee7fcbde5bd2b9a25fb89aa70caea2eba3bee836ff41076"
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
 
 [[package]]
 name = "utf8parse"
@@ -545,9 +559,12 @@ checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
 name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
+version = "0.14.2+wasi-0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+checksum = "9683f9a5a998d873c0d21fcbe3c083009670149a8fab228644b8bd36b2c48cb3"
+dependencies = [
+ "wit-bindgen-rt",
+]
 
 [[package]]
 name = "windows-sys"
@@ -624,13 +641,22 @@ checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
 [[package]]
 name = "winnow"
-version = "0.6.24"
+version = "0.7.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8d71a593cc5c42ad7876e2c1fda56f314f3754c084128833e64f1345ff8a03a"
+checksum = "d9fb597c990f03753e08d3c29efbfcf2019a003b4bf4ba19225c158e1549f0f3"
 dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "wyz"
 version = "0.5.1"
@@ -642,27 +668,27 @@ dependencies = [
 
 [[package]]
 name = "zstd"
-version = "0.13.2"
+version = "0.13.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcf2b778a664581e31e389454a7072dab1647606d44f7feea22cd5abb9c9f3f9"
+checksum = "e91ee311a569c327171651566e07972200e76fcfe2242a4fa446149a3881c08a"
 dependencies = [
  "zstd-safe",
 ]
 
 [[package]]
 name = "zstd-safe"
-version = "7.2.1"
+version = "7.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54a3ab4db68cea366acc5c897c7b4d4d1b8994a9cd6e6f841f8964566a419059"
+checksum = "8f49c4d5f0abb602a93fb8736af2a4f4dd9512e36f7f570d66e65ff867ed3b9d"
 dependencies = [
  "zstd-sys",
 ]
 
 [[package]]
 name = "zstd-sys"
-version = "2.0.13+zstd.1.5.6"
+version = "2.0.15+zstd.1.5.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38ff0f21cfee8f97d94cef41359e0c89aa6113028ab0291aa8ca0038995a95aa"
+checksum = "eb81183ddd97d0c74cedf1d50d85c8d08c1b8b68ee863bdee9e706eedba1a237"
 dependencies = [
  "cc",
  "pkg-config",

Cargo.toml

@@ -19,20 +19,20 @@ cbindgen = "0.28.0"
 
 [dependencies.servicepoint]
 package = "servicepoint"
-version = "0.13.2"
+version = "0.14.0"
 default-features = false
-features = ["protocol_udp"]
-git = "https://git.berlin.ccc.de/servicepoint/servicepoint/"
-branch = "next"
 
 [features]
-full = ["servicepoint/all_compressions", "servicepoint/default"]
+all_compressions = ["servicepoint/all_compressions"]
-default = ["full"]
+default = ["all_compressions", "servicepoint/default"]
 
 [lints.rust]
 missing-docs = "warn"
 unsafe_op_in_unsafe_fn = "warn"
 
+[lints.clippy]
+missing_safety_doc = "allow"
+
 [package.metadata.docs.rs]
 all-features = true
 

example/Makefile

@@ -1,33 +1,42 @@
-CC := gcc
+CARGO ?= cargo
-CARGO := rustup run nightly cargo
+STRIP ?= strip
+
+FEATURES := ""
 
 THIS_DIR := $(dir $(realpath $(lastword $(MAKEFILE_LIST))))
-REPO_ROOT := $(THIS_DIR)/..
+REPO_ROOT := $(realpath $(THIS_DIR)/..)
-RUST_TARGET_DIR := $(REPO_ROOT)/target/x86_64-unknown-linux-musl/size-optimized
+export SERVICEPOINT_HEADER_OUT := $(REPO_ROOT)/include
 
-RUSTFLAGS := -Zlocation-detail=none \
+override CFG_MUSL := $(if $(CFG_MUSL),$(CFG_MUSL),$(if $(MUSL),$(MUSL),0))
-	-Zfmt-debug=none \
+override CFG_PROFILE := $(if $(CFG_PROFILE),$(CFG_PROFILE),$(if $(PROFILE),$(PROFILE),release))
-	-C linker=musl-gcc \
-	-C link-arg=-s \
-	-C link-arg=--gc-sections \
-	-C link-arg=-z,norelro \
-	-C link-arg=--hash-style=gnu \
-	--crate-type=staticlib \
-	-C panic=abort
 
-CARGOFLAGS := --manifest-path=$(REPO_ROOT)/Cargo.toml \
+CCFLAGS += -Wall -fwhole-program -fPIE -pie
-	--profile=size-optimized \
-	--no-default-features \
-	--target=x86_64-unknown-linux-musl \
-	-Zbuild-std="core,std,alloc,proc_macro,panic_abort" \
-	-Zbuild-std-features="panic_immediate_abort" \
 
-CCFLAGS := -static -Os \
+STRIPFLAGS := -s --strip-unneeded -R .comment -R .gnu.version -R .note -R .note.gnu.build-id -R .note.ABI-tag
-	-ffunction-sections -fdata-sections \
+
+ifeq ($(CFG_MUSL), 1)
+	TARGET ?= x86_64-unknown-linux-musl
+	CC ?= musl-gcc
+	CCFLAGS += -static -lservicepoint_binding_c
+	RUSTFLAGS += --crate-type=staticlib -Ctarget-feature=-crt-static
+else
+	TARGET ?= x86_64-unknown-linux-gnu
+	CC ?= gcc
+	#CCFLAGS += -shared
+	CCFLAGS += -Wl,-Bstatic -lservicepoint_binding_c -Wl,-Bdynamic
+endif
+
+#ifeq ($(CFG_PROFILE), size-optimized)
+#	CCFLAGS += -nodefaultlibs -lc
+#endif
+
+RUST_TARGET_DIR := $(REPO_ROOT)/target/$(TARGET)/$(CFG_PROFILE)
+OUT_DIR := $(realpath $(THIS_DIR)/out/)
+
+ifeq ($(CFG_PROFILE), size-optimized)
+	CARGO_PROFILE := size-optimized
+	CCFLAGS += -Oz \
 		-fwrapv -fomit-frame-pointer -fno-stack-protector\
-	-fwhole-program \
-	-nodefaultlibs -lservicepoint_binding_c -lc \
-	-Wl,--gc-sections \
 		-fno-unroll-loops \
 		-fno-unwind-tables -fno-asynchronous-unwind-tables \
 		-fmerge-all-constants \
@@ -36,45 +45,85 @@ CCFLAGS := -static -Os \
 		-fvisibility=hidden \
 		-Bsymbolic \
 		-Wl,--exclude-libs,ALL \
-	-fno-ident
+		-fno-ident \
-	#-fuse-ld=gold \
 		-fno-exceptions
-	#-Wl,--icf=all \
+	CARGOFLAGS += -Zbuild-std="core,std,alloc,proc_macro,panic_abort" \
+		-Zbuild-std-features="panic_immediate_abort"
+	RUSTFLAGS += -Zlocation-detail=none \
+		-Zfmt-debug=none \
+		-C link-arg=-z,norelro \
+		-C panic=abort
+		#-C link-arg=--hash-style=gnu
+else ifeq ($(CFG_PROFILE), release)
+	CARGO_PROFILE := release
+	CCFLAGS += -O2
+else ifeq ($(CFG_PROFILE), debug)
+	CCFLAGS += -Og
+	CARGO_PROFILE := dev
+else
+	CFG_PROFILE := $(error "PROFILE has to be set to one of: debug, release, size-optimized")
+endif
 
-export SERVICEPOINT_HEADER_OUT := $(REPO_ROOT)/include
+CARGOFLAGS += --manifest-path=$(REPO_ROOT)/Cargo.toml \
+	--profile=$(CARGO_PROFILE) \
+	--no-default-features \
+	--features=$(FEATURES) \
+	--target=$(TARGET)
 
-build: out/example
+ifneq ($(CFG_PROFILE), debug)
+	CCFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections
+	RUSTFLAGS += -C link-arg=-s -C link-arg=-Wl,--gc-sections
+endif
 
-clean:
+ifeq ($(LTO), 1)
-	rm -r out || true
+	CCFLAGS += -flto
-	rm include/servicepoint.h || true
+endif
+
+_c_src := $(wildcard ./src/*.c)
+_programs := $(basename $(notdir $(_c_src)))
+_bins := $(addprefix out/, $(_programs))
+_unstripped_bins := $(addsuffix _unstripped, $(_bins))
+_run_programs := $(addprefix run_, $(_programs))
+_rs_src := $(wildcard ../src/**.rs) ../Cargo.lock ../Cargo.toml ../cbindgen.toml
+_sp_artifacts := $(SERVICEPOINT_HEADER_OUT)/servicepoint.h $(RUST_TARGET_DIR)/libservicepoint_binding_c.a $(RUST_TARGET_DIR)/libservicepoint_binding_c.so
+
+all: $(_bins)
+
+clean: clean-c clean-rust
+
+clean-c:
+	rm -r $(OUT_DIR) || true
+
+clean-rust:
+	rm $(SERVICEPOINT_HEADER_OUT)/servicepoint.h || true
 	cargo clean
 
-run: out/example
+.PHONY: all clean sizes $(_run_programs) clean-c clean-rust
-	out/example
 
-PHONY: build clean dependencies run
+$(_unstripped_bins): out/%_unstripped: src/%.c $(SERVICEPOINT_HEADER_OUT)/servicepoint.h $(_sp_artifacts)
-
-out/example_unstripped: dependencies main.c
 	mkdir -p out || true
-	${CC} main.c \
+	${CC} $< \
 		-I $(SERVICEPOINT_HEADER_OUT) \
 		-L $(RUST_TARGET_DIR) \
 		$(CCFLAGS) \
-		-o out/example_unstripped
+		-o $@
-out/example: out/example_unstripped
-	strip -s --strip-unneeded \
-		-R .comment -R .gnu.version -R .comment -R .note -R .note.gnu.build-id -R .note.ABI-tag \
-		out/example_unstripped \
-		-o out/example
 
-dependencies: FORCE
+$(_bins): out/%: out/%_unstripped
-	mkdir -p include || true
+	$(STRIP) $(STRIPFLAGS) $^ -o $@
-	# generate servicepoint header and binary to link against
+
+$(_sp_artifacts): $(_rs_src)
+	mkdir -p $(SERVICEPOINT_HEADER_OUT) || true
+	# generate servicepoint header and library to link against
 	${CARGO} rustc $(CARGOFLAGS) -- $(RUSTFLAGS)
 
-analyze-size: out/example_unstripped
+$(_run_programs): run_%: out/% FORCE
-	nm --print-size --size-sort --reverse-sort --radix=d --demangle out/example_unstripped \
+	./$<
+
+sizes: $(_bins)
+	ls -lB out
+
+analyze-size: out/$(BIN)_unstripped
+	nm --print-size --size-sort --reverse-sort --radix=d --demangle $(OUT_DIR)/$(BIN)_unstripped \
 		| awk '{size=$$2+0; print size "\t" $$4}' \
 		| less
 

example/main.c

@@ -1,28 +0,0 @@
-#include <stdio.h>
-#include "servicepoint.h"
-
-int main(void) {
-    UdpConnection *connection = sp_udp_open_ipv4(127, 0, 0, 1, 2342);
-    if (connection == NULL)
-        return 1;
-
-    Bitmap *pixels = sp_bitmap_new(PIXEL_WIDTH, PIXEL_HEIGHT);
-    if (pixels == NULL)
-      return 1;
-
-    sp_bitmap_fill(pixels, true);
-
-    TypedCommand *command = sp_command_bitmap(0, 0, pixels, COMPRESSION_CODE_UNCOMPRESSED);
-    if (command == NULL)
-      return 1;
-
-    Packet *packet = sp_packet_from_command(command);
-
-    Header *header = sp_packet_get_header(packet);
-    //printf("[%d, %d, %d, %d, %d]\n", header->command_code, header->a, header->b, header->c, header->d);
-
-    sp_udp_send_packet(connection, packet);
-
-    sp_udp_free(connection);
-    return 0;
-}

example/src/announce.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include "servicepoint.h"
+
+
+int main(void) {
+    printf("test\n");
+
+    UdpSocket *connection = sp_udp_open_ipv4(172, 23, 42, 29, 2342);
+    //UdpSocket *connection = sp_udp_open_ipv4(127, 0, 0, 1, 2342);
+    if (connection == NULL)
+        return 1;
+
+    sp_udp_send_header(connection, (Header) {.command_code = COMMAND_CODE_CLEAR});
+
+    CharGrid *grid = sp_char_grid_new(5, 2);
+    if (grid == NULL)
+        return 1;
+
+    sp_char_grid_set(grid, 0, 0, 'H');
+    sp_char_grid_set(grid, 1, 0, 'e');
+    sp_char_grid_set(grid, 2, 0, 'l');
+    sp_char_grid_set(grid, 3, 0, 'l');
+    sp_char_grid_set(grid, 4, 0, 'o');
+    sp_char_grid_set(grid, 0, 1, 'W');
+    sp_char_grid_set(grid, 1, 1, 'o');
+    sp_char_grid_set(grid, 2, 1, 'r');
+    sp_char_grid_set(grid, 3, 1, 'l');
+    sp_char_grid_set(grid, 4, 1, 'd');
+
+    Packet *packet = sp_char_grid_into_packet(grid, 0, 0);
+    if (packet == NULL)
+        return 1;
+    sp_udp_send_packet(connection, packet);
+
+    sp_udp_free(connection);
+    return 0;
+}

example/src/brightness_tester.c

@@ -0,0 +1,30 @@
+#include "servicepoint.h"
+
+int main(void) {
+    UdpSocket *connection = sp_udp_open_ipv4(172, 23, 42, 29, 2342);
+    //UdpSocket *connection = sp_udp_open_ipv4(127, 0, 0, 1, 2342);
+    if (connection == NULL)
+        return -1;
+
+    Bitmap *all_on = sp_bitmap_new_max_sized();
+    sp_bitmap_fill(all_on, true);
+
+    Packet *packet = sp_bitmap_into_packet(all_on, 0, 0, COMPRESSION_CODE_UNCOMPRESSED);
+    if (packet == NULL)
+        return -1;
+
+    sp_udp_send_packet(connection, packet);
+
+    BrightnessGrid *grid = sp_brightness_grid_new(TILE_WIDTH, TILE_HEIGHT);
+
+    ByteSlice slice = sp_brightness_grid_unsafe_data_ref(grid);
+    for (size_t index = 0; index < slice.length; index++) {
+        slice.start[index] = (uint8_t) (index % ((size_t) Brightness_MAX));
+    }
+
+    packet = sp_brightness_grid_into_packet(grid, 0, 0);
+    sp_udp_send_packet(connection, packet);
+
+    sp_udp_free(connection);
+    return 0;
+}

example/src/random_stuff.c

@@ -0,0 +1,25 @@
+#include "servicepoint.h"
+
+int main(void) {
+    UdpSocket *connection = sp_udp_open_ipv4(127, 0, 0, 1, 2342);
+    if (connection == NULL)
+        return 1;
+
+    Bitmap *pixels = sp_bitmap_new(PIXEL_WIDTH, PIXEL_HEIGHT);
+    if (pixels == NULL)
+        return 1;
+
+    sp_bitmap_fill(pixels, true);
+
+    Packet *packet = sp_bitmap_into_packet(pixels, 0, 0, COMPRESSION_CODE_UNCOMPRESSED);
+    if (packet == NULL)
+        return 1;
+
+    Header *header = sp_packet_get_header(packet);
+    // printf("[%d, %d, %d, %d, %d]\n", header->command_code, header->a, header->b, header->c, header->d);
+
+    sp_udp_send_packet(connection, packet);
+
+    sp_udp_free(connection);
+    return 0;
+}

flake.nix

@@ -36,10 +36,11 @@
             buildInputs = with pkgs; [
               xe
               xz
-              libgcc
+              #libgcc
-              #glibc.static
+              #glibc
-              musl
+              pkgsStatic.musl
-              libunwind
+              # libunwind
+
             ];
 
             nativeBuildInputs = with pkgs; [
@@ -57,12 +58,14 @@
                 ];
               })
               gcc
+              gdb
+              pkgsStatic.gcc
               gnumake
               pkg-config
-
             ];
 
-            RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
+            #RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
+            CARGO = "rustup run nightly cargo";
           };
         }
       );

include/servicepoint.h

@@ -95,6 +95,36 @@ enum BinaryOperation
 typedef uint8_t BinaryOperation;
 #endif // __cplusplus
 
+/**
+ * The u16 command codes used for the [Command]s.
+ */
+enum CommandCode
+#ifdef __cplusplus
+  : uint16_t
+#endif // __cplusplus
+ {
+    COMMAND_CODE_CLEAR = 2,
+    COMMAND_CODE_CP437_DATA = 3,
+    COMMAND_CODE_CHAR_BRIGHTNESS = 5,
+    COMMAND_CODE_BRIGHTNESS = 7,
+    COMMAND_CODE_HARD_RESET = 11,
+    COMMAND_CODE_FADE_OUT = 13,
+    COMMAND_CODE_BITMAP_LEGACY = 16,
+    COMMAND_CODE_BITMAP_LINEAR = 18,
+    COMMAND_CODE_BITMAP_LINEAR_WIN_UNCOMPRESSED = 19,
+    COMMAND_CODE_BITMAP_LINEAR_AND = 20,
+    COMMAND_CODE_BITMAP_LINEAR_OR = 21,
+    COMMAND_CODE_BITMAP_LINEAR_XOR = 22,
+    COMMAND_CODE_BITMAP_LINEAR_WIN_ZLIB = 23,
+    COMMAND_CODE_BITMAP_LINEAR_WIN_BZIP2 = 24,
+    COMMAND_CODE_BITMAP_LINEAR_WIN_LZMA = 25,
+    COMMAND_CODE_UTF8_DATA = 32,
+    COMMAND_CODE_BITMAP_LINEAR_WIN_ZSTD = 26,
+};
+#ifndef __cplusplus
+typedef uint16_t CommandCode;
+#endif // __cplusplus
+
 /**
  * Specifies the kind of compression to use. Availability depends on features.
  *
@@ -196,13 +226,9 @@ typedef struct SPBitVec SPBitVec;
 typedef struct TypedCommand TypedCommand;
 
 /**
- * A connection using the UDP protocol.
+ * This is a type only used by cbindgen to have a type for pointers.
- *
- * Use this when sending commands directly to the display.
- *
- * Requires the feature "`protocol_udp`" which is enabled by default.
  */
-typedef struct UdpConnection UdpConnection;
+typedef struct UdpSocket UdpSocket;
 
 /**
  * A 2D grid of values.
@@ -268,7 +294,7 @@ typedef struct {
  * grid.set(1, 1, Brightness::MIN);
  *
  * # let connection = FakeConnection;
- * connection.send(BrightnessGridCommand {
+ * connection.send_command(BrightnessGridCommand {
  *     origin: Origin::new(3, 7),
  *     grid
  * }).unwrap()
@@ -288,7 +314,7 @@ typedef ValueGrid_Brightness BrightnessGrid;
  *
  * let b = Brightness::try_from(7).unwrap();
  * # let connection = FakeConnection;
- * let result = connection.send(GlobalBrightnessCommand::from(b));
+ * let result = connection.send_command(GlobalBrightnessCommand::from(b));
  * ```
  */
 typedef uint8_t Brightness;
@@ -317,7 +343,7 @@ typedef uint8_t Brightness;
  *
  * # let connection = FakeConnection;
  * let command = CharGridCommand { origin: Origin::ZERO, grid };
- * connection.send(command).unwrap()
+ * connection.send_command(command).unwrap()
  * ```
  */
 typedef ValueGrid_char CharGrid;
@@ -425,6 +451,18 @@ size_t sp_bitmap_height(Bitmap */*notnull*/ bitmap);
  */
 SPBitVec */*notnull*/ sp_bitmap_into_bitvec(Bitmap */*notnull*/ bitmap);
 
+/**
+ * Creates a [BitmapCommand] and immediately turns that into a [Packet].
+ *
+ * The provided [Bitmap] gets consumed.
+ *
+ * Returns NULL in case of an error.
+ */
+Packet *sp_bitmap_into_packet(Bitmap */*notnull*/ bitmap,
+                              size_t x,
+                              size_t y,
+                              CompressionCode compression);
+
 /**
  * Loads a [Bitmap] with the specified dimensions from the provided data.
  *
@@ -550,6 +588,18 @@ void sp_bitvec_free(SPBitVec */*notnull*/ bit_vec);
  */
 bool sp_bitvec_get(SPBitVec */*notnull*/ bit_vec, size_t index);
 
+/**
+ * Creates a [BitVecCommand] and immediately turns that into a [Packet].
+ *
+ * The provided [SPBitVec] gets consumed.
+ *
+ * Returns NULL in case of an error.
+ */
+Packet *sp_bitvec_into_packet(SPBitVec */*notnull*/ bitvec,
+                              size_t offset,
+                              BinaryOperation operation,
+                              CompressionCode compression);
+
 /**
  * Returns true if length is 0.
  *
@@ -665,9 +715,22 @@ Brightness sp_brightness_grid_get(BrightnessGrid */*notnull*/ brightness_grid,
  */
 size_t sp_brightness_grid_height(BrightnessGrid */*notnull*/ brightness_grid);
 
+/**
+ * Creates a [BrightnessGridCommand] and immediately turns that into a [Packet].
+ *
+ * The provided [BrightnessGrid] gets consumed.
+ *
+ * Returns NULL in case of an error.
+ */
+Packet *sp_brightness_grid_into_packet(BrightnessGrid */*notnull*/ grid,
+                                       size_t x,
+                                       size_t y);
+
 /**
  * Loads a [BrightnessGrid] with the specified dimensions from the provided data.
  *
+ * Any out of range values will be set to [Brightness::MAX] or [Brightness::MIN].
+ *
  * returns: new [BrightnessGrid] instance, or NULL in case of an error.
  */
 BrightnessGrid *sp_brightness_grid_load(size_t width,
@@ -681,7 +744,7 @@ BrightnessGrid *sp_brightness_grid_load(size_t width,
  *
  * # Examples
  * ```C
- * UdpConnection connection = sp_connection_open("127.0.0.1:2342");
+ * UdpConnection connection = sp_udp_open("127.0.0.1:2342");
  * if (connection == NULL)
  *     return 1;
  *
@@ -690,7 +753,7 @@ BrightnessGrid *sp_brightness_grid_load(size_t width,
  * sp_brightness_grid_set(grid, 1, 1, 10);
  *
  * TypedCommand command = sp_command_char_brightness(grid);
- * sp_connection_free(connection);
+ * sp_udp_free(connection);
  * ```
  */
 BrightnessGrid */*notnull*/ sp_brightness_grid_new(size_t width, size_t height);
@@ -782,6 +845,17 @@ uint32_t sp_char_grid_get(CharGrid */*notnull*/ char_grid, size_t x, size_t y);
  */
 size_t sp_char_grid_height(CharGrid */*notnull*/ char_grid);
 
+/**
+ * Creates a [CharGridCommand] and immediately turns that into a [Packet].
+ *
+ * The provided [CharGrid] gets consumed.
+ *
+ * Returns NULL in case of an error.
+ */
+Packet *sp_char_grid_into_packet(CharGrid */*notnull*/ grid,
+                                 size_t x,
+                                 size_t y);
+
 /**
  * Loads a [CharGrid] with the specified dimensions from the provided data.
  *
@@ -897,7 +971,7 @@ TypedCommand */*notnull*/ sp_command_char_grid(size_t x,
  * # Examples
  *
  * ```C
- * sp_connection_send_command(connection, sp_command_clear());
+ * sp_udp_send_command(connection, sp_command_clear());
  * ```
  */
 TypedCommand */*notnull*/ sp_command_clear(void);
@@ -1009,6 +1083,17 @@ uint8_t sp_cp437_grid_get(Cp437Grid */*notnull*/ cp437_grid,
  */
 size_t sp_cp437_grid_height(Cp437Grid */*notnull*/ cp437_grid);
 
+/**
+ * Creates a [Cp437GridCommand] and immediately turns that into a [Packet].
+ *
+ * The provided [Cp437Grid] gets consumed.
+ *
+ * Returns NULL in case of an error.
+ */
+Packet *sp_cp437_grid_into_packet(Cp437Grid */*notnull*/ grid,
+                                  size_t x,
+                                  size_t y);
+
 /**
  * Loads a [Cp437Grid] with the specified dimensions from the provided data.
  */
@@ -1120,10 +1205,18 @@ void sp_packet_set_payload(Packet */*notnull*/ packet, ByteSlice data);
  */
 Packet *sp_packet_try_load(ByteSlice data);
 
+/**
+ * Converts u16 into [CommandCode].
+ *
+ * If the provided value is not valid, false is returned and result is not changed.
+ */
+bool sp_u16_to_command_code(uint16_t code,
+                            CommandCode *result);
+
 /**
  * Closes and deallocates a [UdpConnection].
  */
-void sp_udp_free(UdpConnection */*notnull*/ connection);
+void sp_udp_free(UdpSocket */*notnull*/ connection);
 
 /**
  * Creates a new instance of [UdpConnection].
@@ -1133,12 +1226,12 @@ void sp_udp_free(UdpConnection */*notnull*/ connection);
  * # Examples
  *
  * ```C
- * UdpConnection connection = sp_connection_open("172.23.42.29:2342");
+ * UdpConnection connection = sp_udp_open("172.23.42.29:2342");
  * if (connection != NULL)
- *     sp_connection_send_command(connection, sp_command_clear());
+ *     sp_udp_send_command(connection, sp_command_clear());
  * ```
  */
-UdpConnection *sp_udp_open(char */*notnull*/ host);
+UdpSocket *sp_udp_open(char */*notnull*/ host);
 
 /**
  * Creates a new instance of [UdpConnection].
@@ -1148,12 +1241,12 @@ UdpConnection *sp_udp_open(char */*notnull*/ host);
  * # Examples
  *
  * ```C
- * UdpConnection connection = sp_connection_open_ipv4(172, 23, 42, 29, 2342);
+ * UdpConnection connection = sp_udp_open_ipv4(172, 23, 42, 29, 2342);
  * if (connection != NULL)
- *     sp_connection_send_command(connection, sp_command_clear());
+ *     sp_udp_send_command(connection, sp_command_clear());
  * ```
  */
-UdpConnection *sp_udp_open_ipv4(uint8_t ip1,
+UdpSocket *sp_udp_open_ipv4(uint8_t ip1,
                             uint8_t ip2,
                             uint8_t ip3,
                             uint8_t ip4,
@@ -1169,13 +1262,25 @@ UdpConnection *sp_udp_open_ipv4(uint8_t ip1,
  * # Examples
  *
  * ```C
- * sp_connection_send_command(connection, sp_command_clear());
+ * sp_udp_send_command(connection, sp_command_brightness(5));
- * sp_connection_send_command(connection, sp_command_brightness(5));
  * ```
  */
-bool sp_udp_send_command(UdpConnection */*notnull*/ connection,
+bool sp_udp_send_command(UdpSocket */*notnull*/ connection,
                          TypedCommand */*notnull*/ command);
 
+/**
+ * Sends a [Header] to the display using the [UdpConnection].
+ *
+ * returns: true in case of success
+ *
+ * # Examples
+ *
+ * ```C
+ * sp_udp_send_header(connection, sp_command_brightness(5));
+ * ```
+ */
+bool sp_udp_send_header(UdpSocket */*notnull*/ udp_connection, Header header);
+
 /**
  * Sends a [Packet] to the display using the [UdpConnection].
  *
@@ -1183,7 +1288,7 @@ bool sp_udp_send_command(UdpConnection */*notnull*/ connection,
  *
  * returns: true in case of success
  */
-bool sp_udp_send_packet(UdpConnection */*notnull*/ connection,
+bool sp_udp_send_packet(UdpSocket */*notnull*/ connection,
                         Packet */*notnull*/ packet);
 
 #ifdef __cplusplus

src/bitmap.rs

@@ -1,6 +1,8 @@
 use crate::byte_slice::ByteSlice;
-use crate::{heap_drop, heap_move, heap_move_nonnull, SPBitVec};
+use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, SPBitVec};
-use servicepoint::{Bitmap, DataRef, Grid};
+use servicepoint::{
+    Bitmap, BitmapCommand, CompressionCode, DataRef, Grid, Origin, Packet,
+};
 use std::ptr::NonNull;
 
 /// Creates a new [Bitmap] with the specified dimensions.
@@ -78,7 +80,7 @@ pub unsafe extern "C" fn sp_bitmap_from_bitvec(
     width: usize,
     bitvec: NonNull<SPBitVec>,
 ) -> *mut Bitmap {
-    let bitvec = unsafe { *Box::from_raw(bitvec.as_ptr()) };
+    let bitvec = unsafe { heap_remove(bitvec) };
     if let Ok(bitmap) = Bitmap::from_bitvec(width, bitvec.0) {
         heap_move(bitmap)
     } else {
@@ -196,6 +198,29 @@ pub unsafe extern "C" fn sp_bitmap_unsafe_data_ref(
 pub unsafe extern "C" fn sp_bitmap_into_bitvec(
     bitmap: NonNull<Bitmap>,
 ) -> NonNull<SPBitVec> {
-    let bitmap = unsafe { *Box::from_raw(bitmap.as_ptr()) };
+    let bitmap = unsafe { heap_remove(bitmap) };
     heap_move_nonnull(SPBitVec(bitmap.into()))
 }
+
+/// Creates a [BitmapCommand] and immediately turns that into a [Packet].
+///
+/// The provided [Bitmap] gets consumed.
+///
+/// Returns NULL in case of an error.
+#[no_mangle]
+pub unsafe extern "C" fn sp_bitmap_into_packet(
+    bitmap: NonNull<Bitmap>,
+    x: usize,
+    y: usize,
+    compression: CompressionCode,
+) -> *mut Packet {
+    let bitmap = unsafe { heap_remove(bitmap) };
+    match Packet::try_from(BitmapCommand {
+        bitmap,
+        origin: Origin::new(x, y),
+        compression,
+    }) {
+        Ok(packet) => heap_move(packet),
+        Err(_) => std::ptr::null_mut(),
+    }
+}

src/bitvec.rs

@@ -1,5 +1,5 @@
-use crate::{heap_drop, heap_move_nonnull, ByteSlice};
+use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, ByteSlice};
-use servicepoint::BitVecU8Msb0;
+use servicepoint::{BinaryOperation, BitVecCommand, CompressionCode, DisplayBitVec, Packet};
 use std::ptr::NonNull;
 
 /// A vector of bits
@@ -10,7 +10,7 @@ use std::ptr::NonNull;
 /// sp_bitvec_set(vec, 5, true);
 /// sp_bitvec_free(vec);
 /// ```
-pub struct SPBitVec(pub(crate) BitVecU8Msb0);
+pub struct SPBitVec(pub(crate) DisplayBitVec);
 
 impl Clone for SPBitVec {
     fn clone(&self) -> Self {
@@ -31,7 +31,7 @@ impl Clone for SPBitVec {
 /// - when `size` is not divisible by 8.
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitvec_new(size: usize) -> NonNull<SPBitVec> {
-    heap_move_nonnull(SPBitVec(BitVecU8Msb0::repeat(false, size)))
+    heap_move_nonnull(SPBitVec(DisplayBitVec::repeat(false, size)))
 }
 
 /// Interpret the data as a series of bits and load then into a new [SPBitVec] instance.
@@ -40,7 +40,7 @@ pub unsafe extern "C" fn sp_bitvec_new(size: usize) -> NonNull<SPBitVec> {
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitvec_load(data: ByteSlice) -> NonNull<SPBitVec> {
     let data = unsafe { data.as_slice() };
-    heap_move_nonnull(SPBitVec(BitVecU8Msb0::from_slice(data)))
+    heap_move_nonnull(SPBitVec(DisplayBitVec::from_slice(data)))
 }
 
 /// Clones a [SPBitVec].
@@ -146,3 +146,27 @@ pub unsafe extern "C" fn sp_bitvec_unsafe_data_ref(
 ) -> ByteSlice {
     unsafe { ByteSlice::from_slice((*bit_vec.as_ptr()).0.as_raw_mut_slice()) }
 }
+
+/// Creates a [BitVecCommand] and immediately turns that into a [Packet].
+///
+/// The provided [SPBitVec] gets consumed.
+///
+/// Returns NULL in case of an error.
+#[no_mangle]
+pub unsafe extern "C" fn sp_bitvec_into_packet(
+    bitvec: NonNull<SPBitVec>,
+    offset: usize,
+    operation: BinaryOperation,
+    compression: CompressionCode,
+) -> *mut Packet {
+    let bitvec = unsafe { heap_remove(bitvec) }.0;
+    match Packet::try_from(BitVecCommand {
+        bitvec,
+        offset,
+        operation,
+        compression,
+    }) {
+        Ok(packet) => heap_move(packet),
+        Err(_) => std::ptr::null_mut(),
+    }
+}

src/brightness_grid.rs

@@ -1,5 +1,8 @@
-use crate::{heap_drop, heap_move, heap_move_nonnull, ByteSlice};
+use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, ByteSlice};
-use servicepoint::{Brightness, BrightnessGrid, ByteGrid, DataRef, Grid};
+use servicepoint::{
+    Brightness, BrightnessGrid, BrightnessGridCommand, ByteGrid, DataRef, Grid,
+    Origin, Packet,
+};
 use std::mem::transmute;
 use std::ptr::NonNull;
 
@@ -9,7 +12,7 @@ use std::ptr::NonNull;
 ///
 /// # Examples
 /// ```C
-/// UdpConnection connection = sp_connection_open("127.0.0.1:2342");
+/// UdpConnection connection = sp_udp_open("127.0.0.1:2342");
 /// if (connection == NULL)
 ///     return 1;
 ///
@@ -18,7 +21,7 @@ use std::ptr::NonNull;
 /// sp_brightness_grid_set(grid, 1, 1, 10);
 ///
 /// TypedCommand command = sp_command_char_brightness(grid);
-/// sp_connection_free(connection);
+/// sp_udp_free(connection);
 /// ```
 #[no_mangle]
 pub unsafe extern "C" fn sp_brightness_grid_new(
@@ -167,5 +170,28 @@ pub unsafe extern "C" fn sp_brightness_grid_unsafe_data_ref(
     const _: () = assert!(size_of::<Brightness>() == 1);
 
     let data = unsafe { (*brightness_grid.as_ptr()).data_ref_mut() };
-    unsafe { ByteSlice::from_slice(transmute(data)) }
+    unsafe {
+        ByteSlice::from_slice(transmute::<&mut [Brightness], &mut [u8]>(data))
+    }
+}
+
+/// Creates a [BrightnessGridCommand] and immediately turns that into a [Packet].
+///
+/// The provided [BrightnessGrid] gets consumed.
+///
+/// Returns NULL in case of an error.
+#[no_mangle]
+pub unsafe extern "C" fn sp_brightness_grid_into_packet(
+    grid: NonNull<BrightnessGrid>,
+    x: usize,
+    y: usize,
+) -> *mut Packet {
+    let grid = unsafe { heap_remove(grid) };
+    match Packet::try_from(BrightnessGridCommand {
+        grid,
+        origin: Origin::new(x, y),
+    }) {
+        Ok(packet) => heap_move(packet),
+        Err(_) => std::ptr::null_mut(),
+    }
 }

src/byte_slice.rs

@@ -24,7 +24,7 @@ impl ByteSlice {
         unsafe { std::slice::from_raw_parts(self.start.as_ptr(), self.length) }
     }
 
-    pub(crate) unsafe fn as_slice_mut(&self) -> &mut [u8] {
+    pub(crate) unsafe fn as_slice_mut(&mut self) -> &mut [u8] {
         unsafe {
             std::slice::from_raw_parts_mut(self.start.as_ptr(), self.length)
         }

src/char_grid.rs

@@ -1,5 +1,5 @@
-use crate::{heap_drop, heap_move, heap_move_nonnull, ByteSlice};
+use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, ByteSlice};
-use servicepoint::{CharGrid, Grid};
+use servicepoint::{CharGrid, CharGridCommand, Grid, Origin, Packet};
 use std::ptr::NonNull;
 
 /// Creates a new [CharGrid] with the specified dimensions.
@@ -132,3 +132,24 @@ pub unsafe extern "C" fn sp_char_grid_height(
 ) -> usize {
     unsafe { char_grid.as_ref().height() }
 }
+
+/// Creates a [CharGridCommand] and immediately turns that into a [Packet].
+///
+/// The provided [CharGrid] gets consumed.
+///
+/// Returns NULL in case of an error.
+#[no_mangle]
+pub unsafe extern "C" fn sp_char_grid_into_packet(
+    grid: NonNull<CharGrid>,
+    x: usize,
+    y: usize,
+) -> *mut Packet {
+    let grid = unsafe { heap_remove(grid) };
+    match Packet::try_from(CharGridCommand {
+        grid,
+        origin: Origin::new(x, y),
+    }) {
+        Ok(packet) => heap_move(packet),
+        Err(_) => std::ptr::null_mut(),
+    }
+}

src/cp437_grid.rs

@@ -1,5 +1,7 @@
-use crate::{heap_drop, heap_move, heap_move_nonnull, ByteSlice};
+use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, ByteSlice};
-use servicepoint::{Cp437Grid, DataRef, Grid};
+use servicepoint::{
+    Cp437Grid, Cp437GridCommand, DataRef, Grid, Origin, Packet,
+};
 use std::ptr::NonNull;
 
 /// Creates a new [Cp437Grid] with the specified dimensions.
@@ -132,3 +134,24 @@ pub unsafe extern "C" fn sp_cp437_grid_unsafe_data_ref(
 ) -> ByteSlice {
     unsafe { ByteSlice::from_slice((*cp437_grid.as_ptr()).data_ref_mut()) }
 }
+
+/// Creates a [Cp437GridCommand] and immediately turns that into a [Packet].
+///
+/// The provided [Cp437Grid] gets consumed.
+///
+/// Returns NULL in case of an error.
+#[no_mangle]
+pub unsafe extern "C" fn sp_cp437_grid_into_packet(
+    grid: NonNull<Cp437Grid>,
+    x: usize,
+    y: usize,
+) -> *mut Packet {
+    let grid = unsafe { heap_remove(grid) };
+    match Packet::try_from(Cp437GridCommand {
+        grid,
+        origin: Origin::new(x, y),
+    }) {
+        Ok(packet) => heap_move(packet),
+        Err(_) => std::ptr::null_mut(),
+    }
+}

src/lib.rs

@@ -9,7 +9,7 @@
 //! #include "servicepoint.h"
 //!
 //! int main(void) {
-//!     UdpConnection *connection = sp_connection_open("172.23.42.29:2342");
+//!     UdpConnection *connection = sp_udp_open("172.23.42.29:2342");
 //!     if (connection == NULL)
 //!         return 1;
 //!
@@ -17,10 +17,10 @@
 //!     sp_bitmap_fill(pixels, true);
 //!
 //!     TypedCommand *command = sp_command_bitmap_linear_win(0, 0, pixels, Uncompressed);
-//!     while (sp_connection_send_command(connection, sp_command_clone(command)));
+//!     while (sp_udp_send_command(connection, sp_command_clone(command)));
 //!
 //!     sp_command_free(command);
-//!     sp_connection_free(connection);
+//!     sp_udp_free(connection);
 //!     return 0;
 //! }
 //! ```
@@ -30,21 +30,22 @@ pub use crate::bitvec::*;
 pub use crate::brightness_grid::*;
 pub use crate::byte_slice::*;
 pub use crate::char_grid::*;
-pub use crate::command::*;
-pub use crate::connection::*;
 pub use crate::cp437_grid::*;
 pub use crate::packet::*;
+pub use servicepoint::CommandCode;
 use std::ptr::NonNull;
+pub use crate::typed_command::*;
+pub use crate::udp::*;
 
 mod bitmap;
 mod bitvec;
 mod brightness_grid;
 mod byte_slice;
 mod char_grid;
-mod command;
-mod connection;
 mod cp437_grid;
 mod packet;
+mod typed_command;
+mod udp;
 
 use std::time::Duration;
 
@@ -60,5 +61,12 @@ pub(crate) fn heap_move_nonnull<T>(x: T) -> NonNull<T> {
 }
 
 pub(crate) unsafe fn heap_drop<T>(x: NonNull<T>) {
-    drop(unsafe { Box::from_raw(x.as_ptr()) });
+    drop(unsafe { heap_remove(x) });
 }
+
+pub(crate) unsafe fn heap_remove<T>(x: NonNull<T>) -> T {
+    unsafe { *Box::from_raw(x.as_ptr()) }
+}
+
+/// This is a type only used by cbindgen to have a type for pointers.
+pub struct UdpSocket;

src/packet.rs

@@ -1,5 +1,5 @@
-use crate::{heap_drop, heap_move, heap_move_nonnull, ByteSlice};
+use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, ByteSlice};
-use servicepoint::{Header, Packet, TypedCommand};
+use servicepoint::{CommandCode, Header, Packet, TypedCommand};
 use std::ptr::NonNull;
 
 /// Turns a [TypedCommand] into a [Packet].
@@ -10,7 +10,7 @@ use std::ptr::NonNull;
 pub unsafe extern "C" fn sp_packet_from_command(
     command: NonNull<TypedCommand>,
 ) -> *mut Packet {
-    let command = unsafe { *Box::from_raw(command.as_ptr()) };
+    let command = unsafe { heap_remove(command) };
     if let Ok(packet) = command.try_into() {
         heap_move(packet)
     } else {
@@ -65,7 +65,7 @@ pub unsafe extern "C" fn sp_packet_get_header(
 pub unsafe extern "C" fn sp_packet_get_payload(
     packet: NonNull<Packet>,
 ) -> ByteSlice {
-    unsafe { ByteSlice::from_slice(&mut *(*packet.as_ptr()).payload) }
+    unsafe { ByteSlice::from_slice(&mut (*packet.as_ptr()).payload) }
 }
 
 /// Sets the payload of the provided packet to the provided data.
@@ -87,7 +87,7 @@ pub unsafe extern "C" fn sp_packet_set_payload(
 #[no_mangle]
 pub unsafe extern "C" fn sp_packet_serialize_to(
     packet: NonNull<Packet>,
-    buffer: ByteSlice,
+    mut buffer: ByteSlice,
 ) {
     unsafe {
         packet.as_ref().serialize_to(buffer.as_slice_mut());
@@ -107,3 +107,22 @@ pub unsafe extern "C" fn sp_packet_clone(
 pub unsafe extern "C" fn sp_packet_free(packet: NonNull<Packet>) {
     unsafe { heap_drop(packet) }
 }
+
+/// Converts u16 into [CommandCode].
+///
+/// If the provided value is not valid, false is returned and result is not changed.
+#[no_mangle]
+pub unsafe extern "C" fn sp_u16_to_command_code(
+    code: u16,
+    result: *mut CommandCode,
+) -> bool {
+    match CommandCode::try_from(code) {
+        Ok(code) => {
+            unsafe {
+                *result = code;
+            }
+            true
+        }
+        Err(_) => false,
+    }
+}

src/typed_command.rs

@@ -40,7 +40,7 @@ pub unsafe extern "C" fn sp_command_clone(
 /// # Examples
 ///
 /// ```C
-/// sp_connection_send_command(connection, sp_command_clear());
+/// sp_udp_send_command(connection, sp_command_clear());
 /// ```
 #[no_mangle]
 pub unsafe extern "C" fn sp_command_clear() -> NonNull<TypedCommand> {
@@ -115,10 +115,6 @@ pub unsafe extern "C" fn sp_command_bitvec(
     operation: BinaryOperation,
 ) -> *mut TypedCommand {
     let bit_vec = unsafe { *Box::from_raw(bit_vec.as_ptr()) };
-    let compression = match compression.try_into() {
-        Ok(compression) => compression,
-        Err(_) => return std::ptr::null_mut(),
-    };
     let command = servicepoint::BitVecCommand {
         offset,
         operation,
@@ -182,10 +178,6 @@ pub unsafe extern "C" fn sp_command_bitmap(
     compression: CompressionCode,
 ) -> *mut TypedCommand {
     let bitmap = unsafe { *Box::from_raw(bitmap.as_ptr()) };
-    let compression = match compression.try_into() {
-        Ok(compression) => compression,
-        Err(_) => return std::ptr::null_mut(),
-    };
     let command = servicepoint::BitmapCommand {
         origin: servicepoint::Origin::new(x, y),
         bitmap,

src/udp.rs

@@ -1,7 +1,7 @@
-use crate::{heap_drop, heap_move};
+use crate::{heap_drop, heap_move, heap_remove};
-use servicepoint::{Connection, Packet, TypedCommand, UdpConnection};
+use servicepoint::{Header, Packet, TypedCommand, UdpSocketExt};
 use std::ffi::{c_char, CStr};
-use std::net::{Ipv4Addr, SocketAddrV4};
+use std::net::{Ipv4Addr, SocketAddrV4, UdpSocket};
 use std::ptr::NonNull;
 
 /// Creates a new instance of [UdpConnection].
@@ -11,18 +11,18 @@ use std::ptr::NonNull;
 /// # Examples
 ///
 /// ```C
-/// UdpConnection connection = sp_connection_open("172.23.42.29:2342");
+/// UdpConnection connection = sp_udp_open("172.23.42.29:2342");
 /// if (connection != NULL)
-///     sp_connection_send_command(connection, sp_command_clear());
+///     sp_udp_send_command(connection, sp_command_clear());
 /// ```
 #[no_mangle]
 pub unsafe extern "C" fn sp_udp_open(
     host: NonNull<c_char>,
-) -> *mut UdpConnection {
+) -> *mut UdpSocket {
     let host = unsafe { CStr::from_ptr(host.as_ptr()) }
         .to_str()
         .expect("Bad encoding");
-    let connection = match UdpConnection::open(host) {
+    let connection = match UdpSocket::bind_connect(host) {
         Err(_) => return std::ptr::null_mut(),
         Ok(value) => value,
     };
@@ -37,9 +37,9 @@ pub unsafe extern "C" fn sp_udp_open(
 /// # Examples
 ///
 /// ```C
-/// UdpConnection connection = sp_connection_open_ipv4(172, 23, 42, 29, 2342);
+/// UdpConnection connection = sp_udp_open_ipv4(172, 23, 42, 29, 2342);
 /// if (connection != NULL)
-///     sp_connection_send_command(connection, sp_command_clear());
+///     sp_udp_send_command(connection, sp_command_clear());
 /// ```
 #[no_mangle]
 pub unsafe extern "C" fn sp_udp_open_ipv4(
@@ -48,9 +48,9 @@ pub unsafe extern "C" fn sp_udp_open_ipv4(
     ip3: u8,
     ip4: u8,
     port: u16,
-) -> *mut UdpConnection {
+) -> *mut UdpSocket {
     let addr = SocketAddrV4::new(Ipv4Addr::from([ip1, ip2, ip3, ip4]), port);
-    let connection = match UdpConnection::open(addr) {
+    let connection = match UdpSocket::bind_connect(addr) {
         Err(_) => return std::ptr::null_mut(),
         Ok(value) => value,
     };
@@ -64,11 +64,11 @@ pub unsafe extern "C" fn sp_udp_open_ipv4(
 /// returns: true in case of success
 #[no_mangle]
 pub unsafe extern "C" fn sp_udp_send_packet(
-    connection: NonNull<UdpConnection>,
+    connection: NonNull<UdpSocket>,
     packet: NonNull<Packet>,
 ) -> bool {
-    let packet = unsafe { Box::from_raw(packet.as_ptr()) };
+    let packet = unsafe { heap_remove(packet) };
-    unsafe { connection.as_ref().send(*packet) }.is_ok()
+    unsafe { connection.as_ref().send(&Vec::from(packet)) }.is_ok()
 }
 
 /// Sends a [TypedCommand] to the display using the [UdpConnection].
@@ -80,20 +80,40 @@ pub unsafe extern "C" fn sp_udp_send_packet(
 /// # Examples
 ///
 /// ```C
-/// sp_connection_send_command(connection, sp_command_clear());
+/// sp_udp_send_command(connection, sp_command_brightness(5));
-/// sp_connection_send_command(connection, sp_command_brightness(5));
 /// ```
 #[no_mangle]
 pub unsafe extern "C" fn sp_udp_send_command(
-    connection: NonNull<UdpConnection>,
+    connection: NonNull<UdpSocket>,
     command: NonNull<TypedCommand>,
 ) -> bool {
-    let command = *unsafe { Box::from_raw(command.as_ptr()) };
+    let command = unsafe { heap_remove(command) };
-    unsafe { connection.as_ref().send(command) }.is_ok()
+    unsafe { connection.as_ref().send_command(command) }.is_some()
+}
+
+/// Sends a [Header] to the display using the [UdpConnection].
+///
+/// returns: true in case of success
+///
+/// # Examples
+///
+/// ```C
+/// sp_udp_send_header(connection, sp_command_brightness(5));
+/// ```
+#[no_mangle]
+pub unsafe extern "C" fn sp_udp_send_header(
+    udp_connection: NonNull<UdpSocket>,
+    header: Header,
+) -> bool {
+    let packet = Packet {
+        header,
+        payload: vec![],
+    };
+    unsafe { udp_connection.as_ref() }.send(&Vec::from(packet)).is_ok()
 }
 
 /// Closes and deallocates a [UdpConnection].
 #[no_mangle]
-pub unsafe extern "C" fn sp_udp_free(connection: NonNull<UdpConnection>) {
+pub unsafe extern "C" fn sp_udp_free(connection: NonNull<UdpSocket>) {
     unsafe { heap_drop(connection) }
 }