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sqlite demo

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This commit is contained in:
xushiwei
2024-05-15 21:27:42 +08:00
parent f167c6dcca
commit c634dc25b4
7 changed files with 99 additions and 118 deletions
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6
internal/llgen/llgenf.go
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@@ -103,8 +103,6 @@ func SmartDoFile(inFile string, pkgPath ...string) {
fname := autgenFile
if inCompilerDir(absDir) {
fname = "out.ll"
} else if inSqlite(absDir) {
fname = "sqlite.ll"
}
outFile := dir + fname
@@ -129,7 +127,3 @@ func genZip(dir string, outFile, inFile string) {
func inCompilerDir(dir string) bool {
return strings.Contains(dir, "/llgo/cl/")
}
func inSqlite(dir string) bool {
return strings.HasSuffix(dir, "/llgo/x/sqlite")
}

35
x/sqlite/README.md Normal file
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@@ -0,0 +1,35 @@
LLGo wrapper of sqlite
=====
[![Build Status](https://github.com/goplus/sqlite/actions/workflows/go.yml/badge.svg)](https://github.com/goplus/sqlite/actions/workflows/go.yml)
[![GitHub release](https://img.shields.io/github/v/tag/goplus/sqlite.svg?label=release)](https://github.com/goplus/sqlite/releases)
[![GoDoc](https://pkg.go.dev/badge/github.com/goplus/sqlite.svg)](https://pkg.go.dev/github.com/goplus/sqlite)
[![Compiler](https://img.shields.io/badge/compiler-llgo-darkgreen.svg)](https://github.com/goplus/llgo)
[![Language](https://img.shields.io/badge/language-Go+-blue.svg)](https://github.com/goplus/gop)
## How to install
```sh
git clone https://github.com/goplus/sqlite.git
cd sqlite
git submodule init
git submodule update
mkdir build.dir
cd build.dir
../sqlite/configure --enable-shared
sudo make install
```
## Demos
The `_demo` directory contains our demos (it start with `_` to prevent the `go` command from compiling it):
* [sqlitedemo](_demo/sqlitedemo/demo.go): a basic sqlite demo
### How to run demos
To run the demos in directory `_demo`:
```sh
cd <demo-directory> # eg. cd _demo/sqlitedemo
llgo run .
```

61
x/sqlite/_demo/sqlitedemo/demo.go Normal file
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@@ -0,0 +1,61 @@
package main
import (
"github.com/goplus/llgo/c"
"github.com/goplus/llgo/x/sqlite"
)
func main() {
c.Remove(c.Str("test.db"))
db, err := sqlite.Open(c.Str("test.db"))
check(err, db, "sqlite: Open")
err = db.Exec(c.Str("CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT)"), nil, nil, nil)
check(err, db, "sqlite: Exec CREATE TABLE")
stmt, err := db.PrepareV3("INSERT INTO users (id, name) VALUES (?, ?)", 0, nil)
check(err, db, "sqlite: PrepareV3 INSERT")
stmt.BindInt(1, 100)
stmt.BindText(2, c.Str("Hello World"), -1, nil)
err = stmt.Step()
checkDone(err, db, "sqlite: Step INSERT 1")
stmt.Reset()
stmt.BindInt(1, 200)
stmt.BindText(2, c.Str("This is llgo"), -1, nil)
err = stmt.Step()
checkDone(err, db, "sqlite: Step INSERT 2")
stmt.Close()
stmt, err = db.PrepareV3("SELECT * FROM users", 0, nil)
check(err, db, "sqlite: PrepareV3 SELECT")
for {
if err = stmt.Step(); err != sqlite.HasRow {
break
}
c.Printf(c.Str("==> id=%d, name=%s\n"), stmt.ColumnInt(0), stmt.ColumnText(1))
}
checkDone(err, db, "sqlite: Step done")
stmt.Close()
db.Close()
}
func check(err sqlite.Errno, db *sqlite.Sqlite3, at string) {
if err != sqlite.OK {
c.Printf(c.Str("==> %s Error: (%d) %s\n"), c.AllocaCStr(at), err, db.Errmsg())
c.Exit(1)
}
}
func checkDone(err sqlite.Errno, db *sqlite.Sqlite3, at string) {
if err != sqlite.Done {
check(err, db, at)
}
}

12
x/sqlite/llgo.cfg
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@@ -1,12 +0,0 @@
{
"cl": [
"mkdir build.dir",
"cd build.dir",
"../sqlite/configure",
"make",
"clang -emit-llvm -S -o ../llgo_autogen.ll -c sqlite3.c",
"cd ..",
"llgen .",
"rm llgo_autogen.lla; zip llgo_autogen.lla llgo_autogen.ll sqlite.ll",
]
}

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x/sqlite/llgo_autogen.lla
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4
x/sqlite/sqlite.go
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@@ -29,15 +29,17 @@ type (
)
const (
LLGoPackage = "link"
LLGoPackage = "link: sqlite3"
)
// llgo:type C
type Sqlite3 struct {
Unused [8]byte
}
// llgo:type C
type Stmt struct {
Unused [8]byte
}
// -----------------------------------------------------------------------------

99
x/sqlite/sqlite.ll
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@@ -1,99 +0,0 @@
; ModuleID = 'github.com/goplus/llgo/x/sqlite'
source_filename = "github.com/goplus/llgo/x/sqlite"
%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
@"github.com/goplus/llgo/x/sqlite.init$guard" = global ptr null
define ptr @"(*github.com/goplus/llgo/x/sqlite.Errno).Errstr"(ptr %0) {
_llgo_0:
%1 = load i32, ptr %0, align 4
%2 = call ptr @sqlite3_errstr(i32 %1)
ret ptr %2
}
define { ptr, i32 } @"github.com/goplus/llgo/x/sqlite.Open"(ptr %0) {
_llgo_0:
%1 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
%2 = call i32 @sqlite3_open(ptr %0, ptr %1)
%3 = load ptr, ptr %1, align 8
%mrv = insertvalue { ptr, i32 } poison, ptr %3, 0
%mrv1 = insertvalue { ptr, i32 } %mrv, i32 %2, 1
ret { ptr, i32 } %mrv1
}
define { ptr, i32 } @"github.com/goplus/llgo/x/sqlite.OpenV2"(ptr %0, i32 %1, ptr %2) {
_llgo_0:
%3 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
%4 = call i32 @sqlite3_open_v2(ptr %0, ptr %3, i32 %1, ptr %2)
%5 = load ptr, ptr %3, align 8
%mrv = insertvalue { ptr, i32 } poison, ptr %5, 0
%mrv1 = insertvalue { ptr, i32 } %mrv, i32 %4, 1
ret { ptr, i32 } %mrv1
}
define { ptr, i32 } @"(*github.com/goplus/llgo/x/sqlite.Sqlite3).Prepare"(ptr %0, %"github.com/goplus/llgo/internal/runtime.String" %1, ptr %2) {
_llgo_0:
%3 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
%4 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %1, 0
%5 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %1, 1
%6 = trunc i64 %5 to i32
%7 = call i32 @sqlite3_prepare(ptr %0, ptr %4, i32 %6, ptr %3, ptr %2)
%8 = load ptr, ptr %3, align 8
%mrv = insertvalue { ptr, i32 } poison, ptr %8, 0
%mrv1 = insertvalue { ptr, i32 } %mrv, i32 %7, 1
ret { ptr, i32 } %mrv1
}
define { ptr, i32 } @"(*github.com/goplus/llgo/x/sqlite.Sqlite3).PrepareV2"(ptr %0, %"github.com/goplus/llgo/internal/runtime.String" %1, ptr %2) {
_llgo_0:
%3 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
%4 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %1, 0
%5 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %1, 1
%6 = trunc i64 %5 to i32
%7 = call i32 @sqlite3_prepare_v2(ptr %0, ptr %4, i32 %6, ptr %3, ptr %2)
%8 = load ptr, ptr %3, align 8
%mrv = insertvalue { ptr, i32 } poison, ptr %8, 0
%mrv1 = insertvalue { ptr, i32 } %mrv, i32 %7, 1
ret { ptr, i32 } %mrv1
}
define { ptr, i32 } @"(*github.com/goplus/llgo/x/sqlite.Sqlite3).PrepareV3"(ptr %0, %"github.com/goplus/llgo/internal/runtime.String" %1, i32 %2, ptr %3) {
_llgo_0:
%4 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
%5 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %1, 0
%6 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %1, 1
%7 = trunc i64 %6 to i32
%8 = call i32 @sqlite3_prepare_v3(ptr %0, ptr %5, i32 %7, i32 %2, ptr %4, ptr %3)
%9 = load ptr, ptr %4, align 8
%mrv = insertvalue { ptr, i32 } poison, ptr %9, 0
%mrv1 = insertvalue { ptr, i32 } %mrv, i32 %8, 1
ret { ptr, i32 } %mrv1
}
define void @"github.com/goplus/llgo/x/sqlite.init"() {
_llgo_0:
%0 = load i1, ptr @"github.com/goplus/llgo/x/sqlite.init$guard", align 1
br i1 %0, label %_llgo_2, label %_llgo_1
_llgo_1: ; preds = %_llgo_0
store i1 true, ptr @"github.com/goplus/llgo/x/sqlite.init$guard", align 1
br label %_llgo_2
_llgo_2: ; preds = %_llgo_1, %_llgo_0
ret void
}
declare ptr @sqlite3_errstr(i32)
declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
declare i32 @sqlite3_open(ptr, ptr)
declare i32 @sqlite3_open_v2(ptr, ptr, i32, ptr)
declare i32 @sqlite3_prepare(ptr, ptr, i32, ptr, ptr)
declare i32 @sqlite3_prepare_v2(ptr, ptr, i32, ptr, ptr)
declare i32 @sqlite3_prepare_v3(ptr, ptr, i32, i32, ptr, ptr)