Add wasi-emscripten-host module (#4)

settings.gradle.kts

@@ -12,3 +12,4 @@ include("common-api")
 include("sqlite-common-api")
 include("sqlite-open-helper")
 include("sqlite-wasm")
+include("wasi-emscripten-host")

wasi-emscripten-host/.gitignore

@@ -0,0 +1 @@
+/build

wasi-emscripten-host/build.gradle.kts

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+plugins {
+    id("ru.pixnews.sqlite.open.helper.gradle.multiplatform.kotlin")
+}
+
+group = "ru.pixnews.sqlite.open.helper.host"
+
+kotlin {
+    jvm()
+
+    sourceSets {
+        commonMain.dependencies {
+            api(projects.commonApi)
+        }
+        commonTest.dependencies {
+            implementation(kotlin("test"))
+            implementation(libs.assertk)
+        }
+    }
+}

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/WasmValueType.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package ru.pixnews.sqlite.open.helper.host
+
+// https://webassembly.github.io/spec/core/appendix/index-types.html
+@JvmInline
+public value class WasmValueType(
+    public val opcode: Byte?,
+) {
+    @Suppress("VARIABLE_NAME_INCORRECT")
+    public companion object WebAssemblyTypes {
+        public val I32: WasmValueType = WasmValueType(0x7f)
+        public val I64: WasmValueType = WasmValueType(0x7e)
+        public val F32: WasmValueType = WasmValueType(0x7d)
+        public val F64: WasmValueType = WasmValueType(0x7c)
+        public val V128: WasmValueType = WasmValueType(0x7b)
+        public val FuncRef: WasmValueType = WasmValueType(0x70)
+        public val ExternRef: WasmValueType = WasmValueType(0x6f)
+        public val FunctionType: WasmValueType = WasmValueType(0x60)
+        public val ResultType: WasmValueType = WasmValueType(0x40)
+    }
+}

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/WasmValueTypeExt.kt

@@ -0,0 +1,14 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package ru.pixnews.sqlite.open.helper.host
+
+import ru.pixnews.sqlite.open.helper.host.WasmValueType.WebAssemblyTypes.I32
+
+public val POINTER: WasmValueType get() = I32
+
+public val WasmValueType.pointer: WasmValueType
+    get() = POINTER

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/emscripten/AssertionFailedException.kt

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package ru.pixnews.sqlite.open.helper.host.emscripten
+
+public class AssertionFailedException(
+    condition: String?,
+    filename: String?,
+    line: Int,
+    func: String?,
+) : RuntimeException(
+    formatErrMsg(
+        condition,
+        filename,
+        line,
+        func,
+    ),
+) {
+    private companion object {
+        fun formatErrMsg(
+            condition: String?,
+            filename: String?,
+            line: Int,
+            func: String?,
+        ): String = buildString {
+            append("Assertion failed: ")
+            append(condition ?: "``")
+            append(",  at ")
+            listOf(
+                filename ?: "unknown filename",
+                line.toString(),
+                func ?: "unknown function",
+            ).joinTo(this, ", ", prefix = "[", postfix = "]")
+        }
+    }
+}

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/filesystem/ReadWriteStrategy.kt

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package ru.pixnews.sqlite.open.helper.host.filesystem
+
+public enum class ReadWriteStrategy {
+    DO_NOT_CHANGE_POSITION,
+    CHANGE_POSITION,
+}

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/filesystem/SysException.kt

@@ -0,0 +1,15 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package ru.pixnews.sqlite.open.helper.host.filesystem
+
+import ru.pixnews.sqlite.open.helper.host.wasi.preview1.type.Errno
+
+public class SysException(
+    public val errNo: Errno,
+    msg: String? = null,
+    cause: Throwable? = null,
+) : RuntimeException(msg, cause)

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/functiontable/IndirectFunctionRef.kt

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package ru.pixnews.sqlite.open.helper.host.functiontable
+
+public sealed interface IndirectFunctionRef {
+    public val ref: Int
+
+    @JvmInline
+    public value class FuncRef(
+        override val ref: Int,
+    ) : IndirectFunctionRef
+
+    @JvmInline
+    public value class ExternalRef(
+        override val ref: Int,
+    ) : IndirectFunctionRef
+}

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/functiontable/IndirectFunctionTableIndex.kt

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package ru.pixnews.sqlite.open.helper.host.functiontable
+
+@JvmInline
+public value class IndirectFunctionTableIndex(
+    public val funcId: Int,
+)

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/include/Fcntl.kt

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+@file:Suppress("VARIABLE_HAS_PREFIX", "BLANK_LINE_BETWEEN_PROPERTIES")
+
+package ru.pixnews.sqlite.open.helper.host.include
+
+public object Fcntl {
+    public const val O_RDONLY: UInt = 0x0U
+    public const val O_WRONLY: UInt = 0x1U
+    public const val O_RDWR: UInt = 0x2U
+    public const val O_ACCMODE: UInt = 0x3U
+
+    public const val O_CREAT: UInt = 0x40U
+    public const val O_EXCL: UInt = 0x80U
+    public const val O_NOCTTY: UInt = 0x100U
+    public const val O_TRUNC: UInt = 0x200U
+    public const val O_APPEND: UInt = 0x400U
+    public const val O_NONBLOCK: UInt = 0x800U
+    public const val O_NDELAY: UInt = O_NONBLOCK
+    public const val O_DSYNC: UInt = 0x1000U
+    public const val O_ASYNC: UInt = 0x2000U
+    public const val O_DIRECT: UInt = 0x4000U
+    public const val O_LARGEFILE: UInt = 0x8000U
+    public const val O_DIRECTORY: UInt = 0x10000U
+    public const val O_NOFOLLOW: UInt = 0x20000U
+    public const val O_NOATIME: UInt = 0x40000U
+    public const val O_CLOEXEC: UInt = 0x80000U
+    public const val O_SYNC: UInt = 0x101000U
+    public const val O_PATH: UInt = 0x200000U
+    public const val O_TMPFILE: UInt = 0x410000U
+    public const val O_SEARCH: UInt = O_PATH
+
+    public const val S_ISUID: UInt = 0x800U
+    public const val S_ISGID: UInt = 0x400U
+    public const val S_ISVTX: UInt = 0x200U
+    public const val S_IRUSR: UInt = 0x100U
+    public const val S_IWUSR: UInt = 0x80U
+    public const val S_IXUSR: UInt = 0x40U
+    public const val S_IRWXU: UInt = 0x1c0U
+    public const val S_IRGRP: UInt = 0x20U
+    public const val S_IWGRP: UInt = 0x10U
+    public const val S_IXGRP: UInt = 0x08U
+    public const val S_IRWXG: UInt = 0x38U
+    public const val S_IROTH: UInt = 0x04U
+    public const val S_IWOTH: UInt = 0x02U
+    public const val S_IXOTH: UInt = 0x01U
+    public const val S_IRWXO: UInt = 0x07U
+
+    public const val AT_FDCWD: Int = -100
+    public const val AT_SYMLINK_NOFOLLOW: UInt = 0x100U
+    public const val AT_REMOVEDIR: UInt = 0x200U
+    public const val AT_SYMLINK_FOLLOW: UInt = 0x400U
+    public const val AT_EACCESS: UInt = 0x200U
+}

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/include/FcntlExt.kt

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+@file:Suppress("MagicNumber")
+
+package ru.pixnews.sqlite.open.helper.host.include
+
+import kotlin.reflect.KProperty0
+
+public fun Fcntl.oMaskToString(mask: UInt): String {
+    val startNames = if (mask.and(O_ACCMODE) == 0U) {
+        listOf(Fcntl::O_RDONLY.name)
+    } else {
+        emptyList()
+    }
+
+    return maskToString(
+        mask,
+        listOf(
+            Fcntl::O_WRONLY,
+            Fcntl::O_RDWR,
+            Fcntl::O_CREAT,
+            Fcntl::O_EXCL,
+            Fcntl::O_NOCTTY,
+            Fcntl::O_TRUNC,
+            Fcntl::O_APPEND,
+            Fcntl::O_NONBLOCK,
+            Fcntl::O_SYNC,
+            Fcntl::O_TMPFILE,
+            Fcntl::O_DSYNC,
+            Fcntl::O_ASYNC,
+            Fcntl::O_DIRECT,
+            Fcntl::O_LARGEFILE,
+            Fcntl::O_DIRECTORY,
+            Fcntl::O_NOFOLLOW,
+            Fcntl::O_NOATIME,
+            Fcntl::O_CLOEXEC,
+            Fcntl::O_PATH,
+        ),
+        startNames,
+    )
+}
+
+public fun Fcntl.sMaskToString(mask: UInt): String = "0${mask.toString(8)}"
+
+public fun Fcntl.sMaskToStringLong(mask: UInt): String = maskToString(
+    mask,
+    listOf(
+        Fcntl::S_ISUID,
+        Fcntl::S_ISGID,
+        Fcntl::S_ISVTX,
+        Fcntl::S_IRUSR,
+        Fcntl::S_IWUSR,
+        Fcntl::S_IXUSR,
+        Fcntl::S_IRWXU,
+        Fcntl::S_IRGRP,
+        Fcntl::S_IWGRP,
+        Fcntl::S_IXGRP,
+        Fcntl::S_IRWXG,
+        Fcntl::S_IROTH,
+        Fcntl::S_IWOTH,
+        Fcntl::S_IXOTH,
+        Fcntl::S_IRWXO,
+    ),
+)
+
+private fun maskToString(
+    mask: UInt,
+    maskProps: List<KProperty0<UInt>>,
+    startNames: List<String> = emptyList(),
+): String {
+    var left = mask
+    val names = startNames.toMutableList()
+    maskProps.forEach { prop: KProperty0<UInt> ->
+        val propMask: UInt = prop.get()
+        if (left.and(propMask) != 0U) {
+            names.add(prop.name)
+            left = left.and(propMask.inv())
+        }
+    }
+    return buildString {
+        names.joinTo(this, ",")
+        if (left != 0U) {
+            append("0")
+            append(left.toString(8))
+        }
+    }
+}

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/include/StructTimespec.kt

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package ru.pixnews.sqlite.open.helper.host.include
+
+@Suppress("PropertyName", "ConstructorParameterNaming")
+public data class StructTimespec(
+    val tv_sec: time_t,
+    val tv_nsec: ULong,
+)
+
+@Suppress("TYPEALIAS_NAME_INCORRECT_CASE")
+public typealias time_t = ULong
+
+public val StructTimespec.timeMillis: ULong
+    get(): ULong = tv_sec * 1000U + tv_nsec / 1_000_000U

wasi-emscripten-host/src/commonMain/kotlin/ru/pixnews/sqlite/open/helper/host/wasi/preview1/ext/FdReadExt.kt

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2024, the wasm-sqlite-open-helper project authors and contributors. Please see the AUTHORS file
+ * for details. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package ru.pixnews.sqlite.open.helper.host.wasi.preview1.ext
+
+import ru.pixnews.sqlite.open.helper.common.api.WasmPtr
+import ru.pixnews.sqlite.open.helper.common.api.plus
+import ru.pixnews.sqlite.open.helper.host.memory.Memory
+import ru.pixnews.sqlite.open.helper.host.memory.readPtr
+import ru.pixnews.sqlite.open.helper.host.wasi.preview1.type.Iovec
+import ru.pixnews.sqlite.open.helper.host.wasi.preview1.type.IovecArray
+import ru.pixnews.sqlite.open.helper.host.wasi.preview1.type.Size
+
+@Suppress("VARIABLE_HAS_PREFIX")
+public object FdReadExt {
+    public fun readIovecs(
+        memory: Memory,
+        pIov: WasmPtr<Iovec>,
+        iovCnt: Int,
+    ): IovecArray {
+        @Suppress("UNCHECKED_CAST", "MagicNumber")
+        val iovecs = MutableList(iovCnt) { idx ->
+            val pIovec: WasmPtr<*> = pIov + 8 * idx
+            Iovec(
+                buf = memory.readPtr(pIovec as WasmPtr<WasmPtr<Byte>>),
+                bufLen = Size(memory.readI32(pIovec + 4).toUInt()),
+            )
+        }
+        return IovecArray(iovecs)
+    }
+}