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Refactor.

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Nuno Cruces
2023-01-26 14:52:38 +00:00
parent 7f6213fbdb
commit eee0c60a5c
13 changed files with 406 additions and 446 deletions
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.github/coverage.html vendored
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@@ -55,23 +55,25 @@
<div id="nav">
<select id="files">
<option value="file0">github.com/ncruces/go-sqlite3/api.go (73.3%)</option>
<option value="file0">github.com/ncruces/go-sqlite3/api.go (80.0%)</option>
<option value="file1">github.com/ncruces/go-sqlite3/compile.go (54.5%)</option>
<option value="file2">github.com/ncruces/go-sqlite3/conn.go (86.8%)</option>
<option value="file2">github.com/ncruces/go-sqlite3/conn.go (86.1%)</option>
<option value="file3">github.com/ncruces/go-sqlite3/error.go (54.5%)</option>
<option value="file4">github.com/ncruces/go-sqlite3/stmt.go (27.2%)</option>
<option value="file4">github.com/ncruces/go-sqlite3/mem.go (78.0%)</option>
<option value="file5">github.com/ncruces/go-sqlite3/vfs.go (74.7%)</option>
<option value="file5">github.com/ncruces/go-sqlite3/stmt.go (27.3%)</option>
<option value="file6">github.com/ncruces/go-sqlite3/vfs_files.go (70.6%)</option>
<option value="file6">github.com/ncruces/go-sqlite3/vfs.go (82.5%)</option>
<option value="file7">github.com/ncruces/go-sqlite3/vfs_lock.go (51.6%)</option>
<option value="file7">github.com/ncruces/go-sqlite3/vfs_files.go (80.0%)</option>
<option value="file8">github.com/ncruces/go-sqlite3/vfs_unix.go (53.6%)</option>
<option value="file8">github.com/ncruces/go-sqlite3/vfs_lock.go (53.3%)</option>
<option value="file9">github.com/ncruces/go-sqlite3/vfs_unix.go (53.6%)</option>
</select>
</div>
@@ -102,18 +104,11 @@ func newConn(module api.Module) *Conn <span class="cov8" title="1">{
if global == nil </span><span class="cov0" title="0">{
panic(noGlobalErr + "malloc_destructor")</span>
}
<span class="cov8" title="1">destructor := uint32(global.Get())
if destructor == 0 </span><span class="cov0" title="0">{
panic(noGlobalErr + "malloc_destructor")</span>
}
<span class="cov8" title="1">destructor, ok := module.Memory().ReadUint32Le(destructor)
if !ok </span><span class="cov0" title="0">{
panic(noGlobalErr + "malloc_destructor")</span>
}
<span class="cov8" title="1">destructor := memory{module}.readUint32(uint32(global.Get()))
<span class="cov8" title="1">return &amp;Conn{
return &amp;Conn{
module: module,
memory: module.Memory(),
memory: memory{module},
api: sqliteAPI{
malloc: getFun("malloc"),
free: getFun("free"),
@@ -229,9 +224,7 @@ func compile() <span class="cov8" title="1">{
<pre class="file" id="file2" style="display: none">package sqlite3
import (
"bytes"
"context"
"math"
"strconv"
"github.com/tetratelabs/wazero"
@@ -242,7 +235,7 @@ type Conn struct {
ctx context.Context
handle uint32
module api.Module
memory api.Memory
memory memory
api sqliteAPI
}
@@ -278,8 +271,7 @@ func OpenFlags(filename string, flags OpenFlag) (conn *Conn, err error) <span cl
return nil, err
}</span>
<span class="cov8" title="1">c.handle, _ = c.memory.ReadUint32Le(connPtr)
<span class="cov8" title="1">c.handle = c.memory.readUint32(connPtr)
if err := c.error(r[0]); err != nil </span><span class="cov8" title="1">{
return nil, err
}</span>
@@ -329,8 +321,8 @@ func (c *Conn) PrepareFlags(sql string, flags PrepareFlag) (stmt *Stmt, tail str
}</span>
<span class="cov8" title="1">stmt = &amp;Stmt{c: c}
stmt.handle, _ = c.memory.ReadUint32Le(stmtPtr)
i, _ := c.memory.ReadUint32Le(tailPtr)
stmt.handle = c.memory.readUint32(stmtPtr)
i := c.memory.readUint32(tailPtr)
tail = sql[i-sqlPtr:]
if err := c.error(r[0]); err != nil </span><span class="cov0" title="0">{
@@ -392,72 +384,46 @@ func (c *Conn) new(len uint32) uint32 <span class="cov8" title="1">{
panic(err)</span>
}
<span class="cov8" title="1">ptr := uint32(r[0])
if ptr == 0 || ptr &gt;= c.memory.Size() </span><span class="cov8" title="1">{
if ptr == 0 || ptr &gt;= c.memory.size() </span><span class="cov8" title="1">{
panic(oomErr)</span>
}
<span class="cov8" title="1">return ptr</span>
}
func (c *Conn) newBytes(s []byte) uint32 <span class="cov8" title="1">{
if s == nil </span><span class="cov8" title="1">{
func (c *Conn) newBytes(b []byte) uint32 <span class="cov8" title="1">{
if b == nil </span><span class="cov8" title="1">{
return 0
}</span>
<span class="cov8" title="1">siz := uint32(len(s))
<span class="cov8" title="1">siz := uint32(len(b))
ptr := c.new(siz)
mem, ok := c.memory.Read(ptr, siz)
buf, ok := c.memory.read(ptr, siz)
if !ok </span><span class="cov0" title="0">{
c.api.free.Call(c.ctx, uint64(ptr))
panic(rangeErr)</span>
}
<span class="cov8" title="1">copy(mem, s)
<span class="cov8" title="1">copy(buf, b)
return ptr</span>
}
func (c *Conn) newString(s string) uint32 <span class="cov8" title="1">{
siz := uint32(len(s) + 1)
ptr := c.new(siz)
mem, ok := c.memory.Read(ptr, siz)
buf, ok := c.memory.read(ptr, siz)
if !ok </span><span class="cov0" title="0">{
c.api.free.Call(c.ctx, uint64(ptr))
panic(rangeErr)</span>
}
<span class="cov8" title="1">mem[len(s)] = 0
copy(mem, s)
<span class="cov8" title="1">buf[len(s)] = 0
copy(buf, s)
return ptr</span>
}
func (c *Conn) getString(ptr, maxlen uint32) string <span class="cov8" title="1">{
return getString(c.memory, ptr, maxlen)
return c.memory.readString(ptr, maxlen)
}</span>
func getString(memory api.Memory, ptr, maxlen uint32) string <span class="cov8" title="1">{
if ptr == 0 </span><span class="cov8" title="1">{
panic(nilErr)</span>
}
<span class="cov8" title="1">switch maxlen </span>{
case 0:<span class="cov8" title="1">
return ""</span>
case math.MaxUint32:<span class="cov8" title="1"></span>
//
default:<span class="cov8" title="1">
maxlen = maxlen + 1</span>
}
<span class="cov8" title="1">mem, ok := memory.Read(ptr, maxlen)
if !ok </span><span class="cov8" title="1">{
mem, ok = memory.Read(ptr, memory.Size()-ptr)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
}
<span class="cov8" title="1">if i := bytes.IndexByte(mem, 0); i &lt; 0 </span><span class="cov8" title="1">{
panic(noNulErr)</span>
} else<span class="cov8" title="1"> {
return string(mem[:i])
}</span>
}
</pre>
<pre class="file" id="file3" style="display: none">package sqlite3
@@ -510,6 +476,109 @@ const (
<pre class="file" id="file4" style="display: none">package sqlite3
import (
"bytes"
"math"
"github.com/tetratelabs/wazero/api"
)
type memory struct {
mod api.Module
}
func (m memory) size() uint32 <span class="cov8" title="1">{
return m.mod.Memory().Size()
}</span>
func (m memory) read(offset, byteCount uint32) ([]byte, bool) <span class="cov8" title="1">{
if offset == 0 </span><span class="cov8" title="1">{
panic(nilErr)</span>
}
<span class="cov8" title="1">return m.mod.Memory().Read(offset, byteCount)</span>
}
func (m memory) mustRead(offset, byteCount uint32) []byte <span class="cov8" title="1">{
buf, ok := m.read(offset, byteCount)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return buf</span>
}
func (m memory) readUint32(offset uint32) uint32 <span class="cov8" title="1">{
if offset == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">v, ok := m.mod.Memory().ReadUint32Le(offset)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return v</span>
}
func (m memory) writeUint32(offset, v uint32) <span class="cov8" title="1">{
if offset == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">ok := m.mod.Memory().WriteUint32Le(offset, v)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
}
func (m memory) readUint64(offset uint32) uint64 <span class="cov8" title="1">{
if offset == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">v, ok := m.mod.Memory().ReadUint64Le(offset)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return v</span>
}
func (m memory) writeUint64(offset uint32, v uint64) <span class="cov8" title="1">{
if offset == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">ok := m.mod.Memory().WriteUint64Le(offset, v)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
}
func (m memory) readFloat64(offset uint32) float64 <span class="cov8" title="1">{
return math.Float64frombits(m.readUint64(offset))
}</span>
func (m memory) writeFloat64(offset uint32, v float64) <span class="cov8" title="1">{
m.writeUint64(offset, math.Float64bits(v))
}</span>
func (m memory) readString(ptr, maxlen uint32) string <span class="cov8" title="1">{
switch maxlen </span>{
case 0:<span class="cov8" title="1">
return ""</span>
case math.MaxUint32:<span class="cov8" title="1"></span>
//
default:<span class="cov8" title="1">
maxlen = maxlen + 1</span>
}
<span class="cov8" title="1">buf, ok := m.read(ptr, maxlen)
if !ok </span><span class="cov8" title="1">{
buf = m.mustRead(ptr, m.size()-ptr)
}</span>
<span class="cov8" title="1">if i := bytes.IndexByte(buf, 0); i &lt; 0 </span><span class="cov8" title="1">{
panic(noNulErr)</span>
} else<span class="cov8" title="1"> {
return string(buf[:i])
}</span>
}
</pre>
<pre class="file" id="file5" style="display: none">package sqlite3
import (
"math"
)
@@ -673,11 +742,8 @@ func (s *Stmt) ColumnText(col int) string <span class="cov8" title="1">{
panic(err)</span>
}
<span class="cov8" title="1">mem, ok := s.c.memory.Read(ptr, uint32(r[0]))
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return string(mem)</span>
<span class="cov8" title="1">mem := s.c.memory.mustRead(ptr, uint32(r[0]))
return string(mem)</span>
}
func (s *Stmt) ColumnBlob(col int, buf []byte) []byte <span class="cov0" title="0">{
@@ -703,15 +769,12 @@ func (s *Stmt) ColumnBlob(col int, buf []byte) []byte <span class="cov0" title="
panic(err)</span>
}
<span class="cov0" title="0">mem, ok := s.c.memory.Read(ptr, uint32(r[0]))
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov0" title="0">return append(buf[0:0], mem...)</span>
<span class="cov0" title="0">mem := s.c.memory.mustRead(ptr, uint32(r[0]))
return append(buf[0:0], mem...)</span>
}
</pre>
<pre class="file" id="file5" style="display: none">package sqlite3
<pre class="file" id="file6" style="display: none">package sqlite3
import (
"context"
@@ -775,36 +838,25 @@ func vfsLocaltime(ctx context.Context, mod api.Module, t uint64, pTm uint32) uin
isdst = 1
}</span>
<span class="cov8" title="1">if pTm == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
// https://pubs.opengroup.org/onlinepubs/7908799/xsh/time.h.html
<span class="cov8" title="1">if mem := mod.Memory(); true &amp;&amp;
mem.WriteUint32Le(pTm+0*ptrlen, uint32(tm.Second())) &amp;&amp;
mem.WriteUint32Le(pTm+1*ptrlen, uint32(tm.Minute())) &amp;&amp;
mem.WriteUint32Le(pTm+2*ptrlen, uint32(tm.Hour())) &amp;&amp;
mem.WriteUint32Le(pTm+3*ptrlen, uint32(tm.Day())) &amp;&amp;
mem.WriteUint32Le(pTm+4*ptrlen, uint32(tm.Month()-time.January)) &amp;&amp;
mem.WriteUint32Le(pTm+5*ptrlen, uint32(tm.Year()-1900)) &amp;&amp;
mem.WriteUint32Le(pTm+6*ptrlen, uint32(tm.Weekday()-time.Sunday)) &amp;&amp;
mem.WriteUint32Le(pTm+7*ptrlen, uint32(tm.YearDay()-1)) &amp;&amp;
mem.WriteUint32Le(pTm+8*ptrlen, uint32(isdst)) </span><span class="cov8" title="1">{
return _OK
}</span>
<span class="cov0" title="0">panic(rangeErr)</span>
<span class="cov8" title="1">mem := memory{mod}
mem.writeUint32(pTm+0*ptrlen, uint32(tm.Second()))
mem.writeUint32(pTm+1*ptrlen, uint32(tm.Minute()))
mem.writeUint32(pTm+2*ptrlen, uint32(tm.Hour()))
mem.writeUint32(pTm+3*ptrlen, uint32(tm.Day()))
mem.writeUint32(pTm+4*ptrlen, uint32(tm.Month()-time.January))
mem.writeUint32(pTm+5*ptrlen, uint32(tm.Year()-1900))
mem.writeUint32(pTm+6*ptrlen, uint32(tm.Weekday()-time.Sunday))
mem.writeUint32(pTm+7*ptrlen, uint32(tm.YearDay()-1))
mem.writeUint32(pTm+8*ptrlen, uint32(isdst))
return _OK</span>
}
func vfsRandomness(ctx context.Context, mod api.Module, pVfs, nByte, zByte uint32) uint32 <span class="cov8" title="1">{
if zByte == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">mem, ok := mod.Memory().Read(zByte, nByte)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">n, _ := rand.Read(mem)
return uint32(n)</span>
}
mem := memory{mod}.mustRead(zByte, nByte)
n, _ := rand.Read(mem)
return uint32(n)
}</span>
func vfsSleep(ctx context.Context, pVfs, nMicro uint32) uint32 <span class="cov8" title="1">{
time.Sleep(time.Duration(nMicro) * time.Microsecond)
@@ -813,29 +865,19 @@ func vfsSleep(ctx context.Context, pVfs, nMicro uint32) uint32 <span class="cov8
func vfsCurrentTime(ctx context.Context, mod api.Module, pVfs, prNow uint32) uint32 <span class="cov8" title="1">{
day := julianday.Float(time.Now())
if prNow == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">if ok := mod.Memory().WriteFloat64Le(prNow, day); !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return _OK</span>
}
memory{mod}.writeFloat64(prNow, day)
return _OK
}</span>
func vfsCurrentTime64(ctx context.Context, mod api.Module, pVfs, piNow uint32) uint32 <span class="cov8" title="1">{
day, nsec := julianday.Date(time.Now())
msec := day*86_400_000 + nsec/1_000_000
if piNow == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">if ok := mod.Memory().WriteUint64Le(piNow, uint64(msec)); !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return _OK</span>
}
memory{mod}.writeUint64(piNow, uint64(msec))
return _OK
}</span>
func vfsFullPathname(ctx context.Context, mod api.Module, pVfs, zRelative, nFull, zFull uint32) uint32 <span class="cov8" title="1">{
rel := getString(mod.Memory(), zRelative, _MAX_PATHNAME)
rel := memory{mod}.readString(zRelative, _MAX_PATHNAME)
abs, err := filepath.Abs(rel)
if err != nil </span><span class="cov0" title="0">{
return uint32(IOERR)
@@ -849,21 +891,15 @@ func vfsFullPathname(ctx context.Context, mod api.Module, pVfs, zRelative, nFull
if siz &gt; nFull </span><span class="cov8" title="1">{
return uint32(CANTOPEN_FULLPATH)
}</span>
<span class="cov8" title="1">if zFull == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">mem, ok := mod.Memory().Read(zFull, siz)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">mem := memory{mod}.mustRead(zFull, siz)
<span class="cov8" title="1">mem[len(abs)] = 0
mem[len(abs)] = 0
copy(mem, abs)
return _OK</span>
}
func vfsDelete(ctx context.Context, mod api.Module, pVfs, zPath, syncDir uint32) uint32 <span class="cov8" title="1">{
path := getString(mod.Memory(), zPath, _MAX_PATHNAME)
path := memory{mod}.readString(zPath, _MAX_PATHNAME)
err := os.Remove(path)
if errors.Is(err, fs.ErrNotExist) </span><span class="cov0" title="0">{
return _OK
@@ -888,7 +924,7 @@ func vfsAccess(ctx context.Context, mod api.Module, pVfs, zPath uint32, flags Ac
// Consider using [syscall.Access] for [ACCESS_READWRITE]/[ACCESS_READ]
// (as the Unix VFS does).
path := getString(mod.Memory(), zPath, _MAX_PATHNAME)
path := memory{mod}.readString(zPath, _MAX_PATHNAME)
fi, err := os.Stat(path)
var res uint32
@@ -924,13 +960,8 @@ func vfsAccess(ctx context.Context, mod api.Module, pVfs, zPath uint32, flags Ac
return uint32(IOERR_ACCESS)</span>
}
<span class="cov8" title="1">if pResOut == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">if ok := mod.Memory().WriteUint32Le(pResOut, res); !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return _OK</span>
<span class="cov8" title="1">memory{mod}.writeUint32(pResOut, res)
return _OK</span>
}
func vfsOpen(ctx context.Context, mod api.Module, pVfs, zName, pFile uint32, flags OpenFlag, pOutFlags uint32) uint32 <span class="cov8" title="1">{
@@ -953,7 +984,7 @@ func vfsOpen(ctx context.Context, mod api.Module, pVfs, zName, pFile uint32, fla
if zName == 0 </span><span class="cov0" title="0">{
file, err = os.CreateTemp("", "*.db")
}</span> else<span class="cov8" title="1"> {
name := getString(mod.Memory(), zName, _MAX_PATHNAME)
name := memory{mod}.readString(zName, _MAX_PATHNAME)
file, err = os.OpenFile(name, oflags, 0600)
}</span>
<span class="cov8" title="1">if err != nil </span><span class="cov8" title="1">{
@@ -974,12 +1005,9 @@ func vfsOpen(ctx context.Context, mod api.Module, pVfs, zName, pFile uint32, fla
<span class="cov8" title="1">id := vfsGetOpenFileID(file, info)
vfsFilePtr{mod, pFile}.SetID(id).SetLock(_NO_LOCK)
if pOutFlags == 0 </span><span class="cov8" title="1">{
return _OK
if pOutFlags != 0 </span><span class="cov8" title="1">{
memory{mod}.writeUint32(pOutFlags, uint32(flags))
}</span>
<span class="cov8" title="1">if ok := mod.Memory().WriteUint32Le(pOutFlags, uint32(flags)); !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return _OK</span>
}
@@ -993,15 +1021,9 @@ func vfsClose(ctx context.Context, mod api.Module, pFile uint32) uint32 <span cl
}
func vfsRead(ctx context.Context, mod api.Module, pFile, zBuf, iAmt uint32, iOfst uint64) uint32 <span class="cov8" title="1">{
if zBuf == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">buf, ok := mod.Memory().Read(zBuf, iAmt)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
buf := memory{mod}.mustRead(zBuf, iAmt)
<span class="cov8" title="1">file := vfsFilePtr{mod, pFile}.OSFile()
file := vfsFilePtr{mod, pFile}.OSFile()
n, err := file.ReadAt(buf, int64(iOfst))
if n == int(iAmt) </span><span class="cov0" title="0">{
return _OK
@@ -1016,15 +1038,9 @@ func vfsRead(ctx context.Context, mod api.Module, pFile, zBuf, iAmt uint32, iOfs
}
func vfsWrite(ctx context.Context, mod api.Module, pFile, zBuf, iAmt uint32, iOfst uint64) uint32 <span class="cov8" title="1">{
if zBuf == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">buf, ok := mod.Memory().Read(zBuf, iAmt)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
buf := memory{mod}.mustRead(zBuf, iAmt)
<span class="cov8" title="1">file := vfsFilePtr{mod, pFile}.OSFile()
file := vfsFilePtr{mod, pFile}.OSFile()
_, err := file.WriteAt(buf, int64(iOfst))
if err != nil </span><span class="cov0" title="0">{
return uint32(IOERR_WRITE)
@@ -1060,17 +1076,12 @@ func vfsFileSize(ctx context.Context, mod api.Module, pFile, pSize uint32) uint3
return uint32(IOERR_SEEK)
}</span>
<span class="cov8" title="1">if pSize == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">if ok := mod.Memory().WriteUint64Le(pSize, uint64(off)); !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return _OK</span>
<span class="cov8" title="1">memory{mod}.writeUint64(pSize, uint64(off))
return _OK</span>
}
</pre>
<pre class="file" id="file6" style="display: none">package sqlite3
<pre class="file" id="file7" style="display: none">package sqlite3
import (
"os"
@@ -1157,49 +1168,25 @@ func (p vfsFilePtr) OSFile() *os.File <span class="cov8" title="1">{
}</span>
func (p vfsFilePtr) ID() uint32 <span class="cov8" title="1">{
if p.ptr == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">id, ok := p.Memory().ReadUint32Le(p.ptr + ptrlen)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return id</span>
}
return memory{p}.readUint32(p.ptr + ptrlen)
}</span>
func (p vfsFilePtr) Lock() vfsLockState <span class="cov8" title="1">{
if p.ptr == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">lk, ok := p.Memory().ReadUint32Le(p.ptr + 2*ptrlen)
if !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return vfsLockState(lk)</span>
}
return vfsLockState(memory{p}.readUint32(p.ptr + 2*ptrlen))
}</span>
func (p vfsFilePtr) SetID(id uint32) vfsFilePtr <span class="cov8" title="1">{
if p.ptr == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">if ok := p.Memory().WriteUint32Le(p.ptr+ptrlen, id); !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return p</span>
}
memory{p}.writeUint32(p.ptr+ptrlen, id)
return p
}</span>
func (p vfsFilePtr) SetLock(lock vfsLockState) vfsFilePtr <span class="cov8" title="1">{
if p.ptr == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov8" title="1">if ok := p.Memory().WriteUint32Le(p.ptr+2*ptrlen, uint32(lock)); !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov8" title="1">return p</span>
}
memory{p}.writeUint32(p.ptr+2*ptrlen, uint32(lock))
return p
}</span>
</pre>
<pre class="file" id="file7" style="display: none">package sqlite3
<pre class="file" id="file8" style="display: none">package sqlite3
import (
"context"
@@ -1451,17 +1438,14 @@ func vfsCheckReservedLock(ctx context.Context, mod api.Module, pFile, pResOut ui
if locked </span><span class="cov0" title="0">{
res = 1
}</span>
<span class="cov0" title="0">if pResOut == 0 </span><span class="cov0" title="0">{
panic(nilErr)</span>
}
<span class="cov0" title="0">if ok := mod.Memory().WriteUint32Le(pResOut, res); !ok </span><span class="cov0" title="0">{
panic(rangeErr)</span>
}
<span class="cov0" title="0">return _OK</span>
<span class="cov0" title="0">memory{mod}.writeUint32(pResOut, res)
return _OK</span>
}
</pre>
<pre class="file" id="file8" style="display: none">package sqlite3
<pre class="file" id="file9" style="display: none">//go:build unix
package sqlite3
import (
"os"