mirror of
https://github.com/glebarez/go-sqlite.git
synced 2025-10-16 12:51:23 +08:00
release 1.4.0
This commit is contained in:
50
mutex.go
50
mutex.go
@@ -9,28 +9,29 @@ import (
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"sync/atomic"
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"unsafe"
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"modernc.org/crt/v3"
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"modernc.org/libc"
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"modernc.org/libc/sys/types"
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"modernc.org/sqlite/lib"
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)
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var (
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mutexMethods = sqlite3.Sqlite3_mutex_methods{
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FxMutexInit: *(*uintptr)(unsafe.Pointer(&struct{ f func(*crt.TLS) int32 }{mutexInit})),
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FxMutexEnd: *(*uintptr)(unsafe.Pointer(&struct{ f func(*crt.TLS) int32 }{mutexEnd})),
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FxMutexInit: *(*uintptr)(unsafe.Pointer(&struct{ f func(*libc.TLS) int32 }{mutexInit})),
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FxMutexEnd: *(*uintptr)(unsafe.Pointer(&struct{ f func(*libc.TLS) int32 }{mutexEnd})),
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FxMutexAlloc: *(*uintptr)(unsafe.Pointer(&struct {
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f func(*crt.TLS, int32) uintptr
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f func(*libc.TLS, int32) uintptr
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}{mutexAlloc})),
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FxMutexFree: *(*uintptr)(unsafe.Pointer(&struct{ f func(*crt.TLS, uintptr) }{mutexFree})),
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FxMutexEnter: *(*uintptr)(unsafe.Pointer(&struct{ f func(*crt.TLS, uintptr) }{mutexEnter})),
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FxMutexFree: *(*uintptr)(unsafe.Pointer(&struct{ f func(*libc.TLS, uintptr) }{mutexFree})),
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FxMutexEnter: *(*uintptr)(unsafe.Pointer(&struct{ f func(*libc.TLS, uintptr) }{mutexEnter})),
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FxMutexTry: *(*uintptr)(unsafe.Pointer(&struct {
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f func(*crt.TLS, uintptr) int32
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f func(*libc.TLS, uintptr) int32
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}{mutexTry})),
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FxMutexLeave: *(*uintptr)(unsafe.Pointer(&struct{ f func(*crt.TLS, uintptr) }{mutexLeave})),
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FxMutexLeave: *(*uintptr)(unsafe.Pointer(&struct{ f func(*libc.TLS, uintptr) }{mutexLeave})),
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FxMutexHeld: *(*uintptr)(unsafe.Pointer(&struct {
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f func(*crt.TLS, uintptr) int32
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f func(*libc.TLS, uintptr) int32
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}{mutexHeld})),
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FxMutexNotheld: *(*uintptr)(unsafe.Pointer(&struct {
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f func(*crt.TLS, uintptr) int32
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f func(*libc.TLS, uintptr) int32
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}{mutexNotheld})),
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}
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@@ -80,6 +81,7 @@ func (m *mutex) enter(id int32) {
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m.Unlock()
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m.wait.Lock()
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//lint:ignore SA2001 TODO report staticcheck issue
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m.wait.Unlock()
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}
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}
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@@ -138,10 +140,10 @@ func (m *mutex) leave(id int32) {
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//
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// If xMutexInit fails in any way, it is expected to clean up after itself
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// prior to returning.
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func mutexInit(tls *crt.TLS) int32 { return sqlite3.SQLITE_OK }
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func mutexInit(tls *libc.TLS) int32 { return sqlite3.SQLITE_OK }
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// int (*xMutexEnd)(void);
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func mutexEnd(tls *crt.TLS) int32 { return sqlite3.SQLITE_OK }
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func mutexEnd(tls *libc.TLS) int32 { return sqlite3.SQLITE_OK }
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// sqlite3_mutex *(*xMutexAlloc)(int);
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//
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@@ -187,15 +189,15 @@ func mutexEnd(tls *crt.TLS) int32 { return sqlite3.SQLITE_OK }
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// SQLITE_MUTEX_RECURSIVE) is used then sqlite3_mutex_alloc() returns a
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// different mutex on every call. For the static mutex types, the same mutex is
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// returned on every call that has the same type number.
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func mutexAlloc(tls *crt.TLS, typ int32) uintptr {
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func mutexAlloc(tls *libc.TLS, typ int32) uintptr {
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defer func() {
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}()
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switch typ {
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case sqlite3.SQLITE_MUTEX_FAST:
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return crt.Xcalloc(tls, 1, crt.Size_t(unsafe.Sizeof(mutex{})))
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return libc.Xcalloc(tls, 1, types.Size_t(unsafe.Sizeof(mutex{})))
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case sqlite3.SQLITE_MUTEX_RECURSIVE:
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p := crt.Xcalloc(tls, 1, crt.Size_t(unsafe.Sizeof(mutex{})))
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(*mutex)(unsafe.Pointer(uintptr(p))).recursive = true
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p := libc.Xcalloc(tls, 1, types.Size_t(unsafe.Sizeof(mutex{})))
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(*mutex)(unsafe.Pointer(p)).recursive = true
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return p
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case sqlite3.SQLITE_MUTEX_STATIC_MASTER:
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return uintptr(unsafe.Pointer(&mutexMaster))
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@@ -227,7 +229,7 @@ func mutexAlloc(tls *crt.TLS, typ int32) uintptr {
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}
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// void (*xMutexFree)(sqlite3_mutex *);
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func mutexFree(tls *crt.TLS, m uintptr) { crt.Xfree(tls, m) }
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func mutexFree(tls *libc.TLS, m uintptr) { libc.Xfree(tls, m) }
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// The sqlite3_mutex_enter() and sqlite3_mutex_try() routines attempt to enter
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// a mutex. If another thread is already within the mutex,
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@@ -244,7 +246,7 @@ func mutexFree(tls *crt.TLS, m uintptr) { crt.Xfree(tls, m) }
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// no-ops.
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// void (*xMutexEnter)(sqlite3_mutex *);
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func mutexEnter(tls *crt.TLS, m uintptr) {
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func mutexEnter(tls *libc.TLS, m uintptr) {
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if m == 0 {
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return
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}
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@@ -253,7 +255,7 @@ func mutexEnter(tls *crt.TLS, m uintptr) {
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}
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// int (*xMutexTry)(sqlite3_mutex *);
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func mutexTry(tls *crt.TLS, m uintptr) int32 {
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func mutexTry(tls *libc.TLS, m uintptr) int32 {
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if m == 0 {
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return sqlite3.SQLITE_OK
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}
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@@ -262,7 +264,7 @@ func mutexTry(tls *crt.TLS, m uintptr) int32 {
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}
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// void (*xMutexLeave)(sqlite3_mutex *);
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func mutexLeave(tls *crt.TLS, m uintptr) {
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func mutexLeave(tls *libc.TLS, m uintptr) {
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if m == 0 {
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return
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}
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@@ -295,19 +297,19 @@ func mutexLeave(tls *crt.TLS, m uintptr) {
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// also return 1 when given a NULL pointer.
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// int (*xMutexHeld)(sqlite3_mutex *);
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func mutexHeld(tls *crt.TLS, m uintptr) int32 {
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func mutexHeld(tls *libc.TLS, m uintptr) int32 {
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if m == 0 {
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return 1
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}
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return crt.Bool32(atomic.LoadInt32(&(*mutex)(unsafe.Pointer(m)).id) == tls.ID)
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return libc.Bool32(atomic.LoadInt32(&(*mutex)(unsafe.Pointer(m)).id) == tls.ID)
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}
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// int (*xMutexNotheld)(sqlite3_mutex *);
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func mutexNotheld(tls *crt.TLS, m uintptr) int32 {
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func mutexNotheld(tls *libc.TLS, m uintptr) int32 {
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if m == 0 {
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return 1
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}
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return crt.Bool32(atomic.LoadInt32(&(*mutex)(unsafe.Pointer(m)).id) != tls.ID)
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return libc.Bool32(atomic.LoadInt32(&(*mutex)(unsafe.Pointer(m)).id) != tls.ID)
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}
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