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5534eb93c6
[Starting from 3.41.0 SQLite has wasm32-wasi support out of the
box.][0]
- Set `-DSQLITE_THREADSAFE=0`. Fixes:
```
$ wasmtime target/wasm32-wasi/release/examples/persons.wasm
Error: failed to run main module `target/wasm32-wasi/release/examples/persons.wasm`
Caused by:
0: failed to instantiate "target/wasm32-wasi/release/examples/persons.wasm"
1: unknown import: `env::pthread_mutexattr_init` has not been defined
```
- Drop `-DSQLITE_OS_OTHER`. Fixes:
```
$ wasmtime target/wasm32-wasi/release/examples/persons.wasm
Error: failed to run main module `target/wasm32-wasi/release/examples/persons.wasm`
Caused by:
0: failed to instantiate "target/wasm32-wasi/release/examples/persons.wasm"
1: unknown import: `env::sqlite3_os_init` has not been defined
```
- [Add wasi specific build flags][1]
- Add basic example
- Also, add instructions how to run it against wasm32-wasi.
Using of file databases is also working, though `--mapdir` arg
should be provided to `wasmtime run`.
[0]: https://wasmlabs.dev/articles/sqlite-wasi-support/
[1]: https://github.com/vmware-labs/webassembly-language-runtimes/blob/main/libs/sqlite/wasi-patches/wlr-build.sh#L11
29 lines
598 B
Markdown
29 lines
598 B
Markdown
# Persons example
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## Run
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```
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$ cargo run --example persons
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```
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## Run (wasm32-wasi)
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### Requisites
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- [wasi-sdk](https://github.com/WebAssembly/wasi-sdk)
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- [wasmtime](https://wasmtime.dev/)
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```
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# Set to wasi-sdk directory
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$ export WASI_SDK_PATH=`<wasi-sdk-path>`
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$ export CC_wasm32_wasi="${WASI_SDK_PATH}/bin/clang --sysroot=${WASI_SDK_PATH}/share/wasi-sysroot"
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# Build
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$ cargo build --example persons --target wasm32-wasi --release --features bundled
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# Run
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$ wasmtime target/wasm32-wasi/release/examples/persons.wasm
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Found persons:
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ID: 1, Name: Steven
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ID: 2, Name: John
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ID: 3, Name: Alex
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```
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