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https://github.com/superseriousbusiness/gotosocial.git
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update modernc.org/sqlite to v1.37.0-concurrrency-workaround (#3958)
This commit is contained in:
kim
GitHub
parent
9c31e213ca
commit
fdf23a91de
64 changed files with 1070 additions and 8220 deletions
131
vendor/modernc.org/libc/pthread_musl.go
generated
vendored
131
vendor/modernc.org/libc/pthread_musl.go
generated
vendored
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@ -22,14 +22,26 @@ type pthreadCleanupItem struct {
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routine, arg uintptr
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}
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// C version is 40 bytes (64b) and 24 bytes (32b).
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type pthreadMutex struct { // 64b 32b
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sync.Mutex // 0 8 0 8
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count int32 // 8 4 8 4
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mType uint32 // 12 4 12 4
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outer sync.Mutex // 16 8 16 8
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owner int32 // 24 4 24 4
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// 28 28
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// C original, unpatched version
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//
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// include/alltypes.h.in:86:TYPEDEF struct {
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// union {
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// int __i[sizeof(long)==8?10:6];
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// volatile int __vi[sizeof(long)==8?10:6];
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// volatile void *volatile __p[sizeof(long)==8?5:6];
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// } __u;
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// } pthread_mutex_t;
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//TODO(jnml) can remove __ccgo_room patches now.
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// We overlay the C version with our version below. It must not be larger than
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// the C version.
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type pthreadMutex struct { // gc 64b 32b | tinygo 64b 32b
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sync.Mutex // 0 8 0 4 | 0 16 0 8
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count int32 // 8 4 4 4 | 16 4 8 4
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typ uint32 // 12 4 8 4 | 20 4 12 4
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owner int32 // 16 4 12 4 | 24 4 16 4
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// 20 16 | 28 20
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}
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type pthreadConds struct {
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@ -39,7 +51,6 @@ type pthreadConds struct {
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var (
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// Ensure there's enough space for unsafe type conversions.
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_ [unsafe.Sizeof(sync.Mutex{}) - __CCGO_SIZEOF_GO_MUTEX]byte
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_ [unsafe.Sizeof(Tpthread_mutex_t{}) - unsafe.Sizeof(pthreadMutex{})]byte
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_ [unsafe.Sizeof(Tpthread_attr_t{}) - unsafe.Sizeof(pthreadAttr{})]byte
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@ -255,103 +266,75 @@ func Xpthread_self(tls *TLS) uintptr {
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func Xpthread_mutex_init(tls *TLS, m, a uintptr) int32 {
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*(*Tpthread_mutex_t)(unsafe.Pointer(m)) = Tpthread_mutex_t{}
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if a != 0 {
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(*pthreadMutex)(unsafe.Pointer(m)).mType = (*Tpthread_mutexattr_t)(unsafe.Pointer(a)).F__attr
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(*pthreadMutex)(unsafe.Pointer(m)).typ = (*Tpthread_mutexattr_t)(unsafe.Pointer(a)).F__attr
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}
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return 0
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}
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func Xpthread_mutex_destroy(tls *TLS, mutex uintptr) int32 {
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func Xpthread_mutex_destroy(tls *TLS, m uintptr) int32 {
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*(*Tpthread_mutex_t)(unsafe.Pointer(m)) = Tpthread_mutex_t{}
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return 0
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}
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func Xpthread_mutex_lock(tls *TLS, m uintptr) int32 {
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Lock()
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owner := (*pthreadMutex)(unsafe.Pointer(m)).owner
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typ := (*pthreadMutex)(unsafe.Pointer(m)).mType
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switch typ {
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switch typ := (*pthreadMutex)(unsafe.Pointer(m)).typ; typ {
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case PTHREAD_MUTEX_NORMAL:
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(*pthreadMutex)(unsafe.Pointer(m)).owner = tls.ID
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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(*pthreadMutex)(unsafe.Pointer(m)).Lock()
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return 0
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case PTHREAD_MUTEX_RECURSIVE:
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switch owner {
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case 0:
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if atomic.CompareAndSwapInt32(&((*pthreadMutex)(unsafe.Pointer(m)).owner), 0, tls.ID) {
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(*pthreadMutex)(unsafe.Pointer(m)).count = 1
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(*pthreadMutex)(unsafe.Pointer(m)).owner = tls.ID
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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(*pthreadMutex)(unsafe.Pointer(m)).Lock()
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return 0
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case tls.ID:
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(*pthreadMutex)(unsafe.Pointer(m)).count++
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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return 0
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default:
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wait:
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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(*pthreadMutex)(unsafe.Pointer(m)).Lock()
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Lock()
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if (*pthreadMutex)(unsafe.Pointer(m)).owner != 0 {
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goto wait
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}
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(*pthreadMutex)(unsafe.Pointer(m)).count = 1
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(*pthreadMutex)(unsafe.Pointer(m)).owner = tls.ID
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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return 0
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}
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if atomic.LoadInt32(&((*pthreadMutex)(unsafe.Pointer(m)).owner)) == tls.ID {
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(*pthreadMutex)(unsafe.Pointer(m)).count++
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return 0
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}
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for {
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(*pthreadMutex)(unsafe.Pointer(m)).Lock()
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if atomic.CompareAndSwapInt32(&((*pthreadMutex)(unsafe.Pointer(m)).owner), 0, tls.ID) {
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(*pthreadMutex)(unsafe.Pointer(m)).count = 1
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return 0
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}
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(*pthreadMutex)(unsafe.Pointer(m)).Unlock()
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}
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default:
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panic(todo("typ=%v", typ))
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panic(todo("", typ))
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}
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return 0
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}
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func Xpthread_mutex_trylock(tls *TLS, m uintptr) int32 {
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Lock()
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owner := (*pthreadMutex)(unsafe.Pointer(m)).owner
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typ := (*pthreadMutex)(unsafe.Pointer(m)).mType
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switch typ {
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switch typ := (*pthreadMutex)(unsafe.Pointer(m)).typ; typ {
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case PTHREAD_MUTEX_NORMAL:
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if owner != 0 {
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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return EBUSY
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if (*pthreadMutex)(unsafe.Pointer(m)).TryLock() {
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return 0
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}
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(*pthreadMutex)(unsafe.Pointer(m)).owner = tls.ID
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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(*pthreadMutex)(unsafe.Pointer(m)).Lock()
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return 0
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return EBUSY
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default:
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panic(todo("typ=%v", typ))
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}
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}
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func Xpthread_mutex_unlock(tls *TLS, m uintptr) int32 {
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Lock()
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count := (*pthreadMutex)(unsafe.Pointer(m)).count
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owner := (*pthreadMutex)(unsafe.Pointer(m)).owner
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typ := (*pthreadMutex)(unsafe.Pointer(m)).mType
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switch typ {
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switch typ := (*pthreadMutex)(unsafe.Pointer(m)).typ; typ {
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case PTHREAD_MUTEX_NORMAL:
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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(*pthreadMutex)(unsafe.Pointer(m)).Unlock()
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return 0
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case PTHREAD_MUTEX_RECURSIVE:
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switch owner {
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case tls.ID:
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switch count {
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case 1:
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(*pthreadMutex)(unsafe.Pointer(m)).owner = 0
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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(*pthreadMutex)(unsafe.Pointer(m)).Unlock()
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return 0
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default:
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(*pthreadMutex)(unsafe.Pointer(m)).count--
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(*pthreadMutex)(unsafe.Pointer(m)).outer.Unlock()
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return 0
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}
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default:
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panic(todo("", owner, tls.ID))
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if atomic.LoadInt32(&((*pthreadMutex)(unsafe.Pointer(m)).owner)) != tls.ID {
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return EPERM
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}
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if atomic.AddInt32(&((*pthreadMutex)(unsafe.Pointer(m)).count), -1) == 0 {
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atomic.StoreInt32(&((*pthreadMutex)(unsafe.Pointer(m)).owner), 0)
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(*pthreadMutex)(unsafe.Pointer(m)).Unlock()
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}
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return 0
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default:
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panic(todo("", typ))
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}
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@ -404,9 +387,8 @@ func Xpthread_cond_timedwait(tls *TLS, c, m, ts uintptr) (r int32) {
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}
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}()
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switch typ := (*pthreadMutex)(unsafe.Pointer(m)).mType; typ {
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switch typ := (*pthreadMutex)(unsafe.Pointer(m)).typ; typ {
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case PTHREAD_MUTEX_NORMAL:
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(*pthreadMutex)(unsafe.Pointer(m)).owner = 0
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(*pthreadMutex)(unsafe.Pointer(m)).Unlock()
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select {
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case <-ch:
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@ -414,7 +396,6 @@ func Xpthread_cond_timedwait(tls *TLS, c, m, ts uintptr) (r int32) {
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case <-to:
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r = ETIMEDOUT
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}
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(*pthreadMutex)(unsafe.Pointer(m)).owner = tls.ID
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(*pthreadMutex)(unsafe.Pointer(m)).Lock()
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return r
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default:
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