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new lock algorithm with state and congestion count in one atomic int
[musl]
/
src
/
internal
/
pthread_impl.h
diff --git
a/src/internal/pthread_impl.h
b/src/internal/pthread_impl.h
index
3890bb5
..
602d6f5
100644
(file)
--- a/
src/internal/pthread_impl.h
+++ b/
src/internal/pthread_impl.h
@@
-30,7
+30,6
@@
struct pthread {
void *result;
struct __ptcb *cancelbuf;
void **tsd;
void *result;
struct __ptcb *cancelbuf;
void **tsd;
- pthread_attr_t attr;
volatile int dead;
struct {
volatile void *volatile head;
volatile int dead;
struct {
volatile void *volatile head;
@@
-98,6
+97,10
@@
struct __timer {
#define DTP_OFFSET 0
#endif
#define DTP_OFFSET 0
#endif
+#ifndef tls_mod_off_t
+#define tls_mod_off_t size_t
+#endif
+
#define SIGTIMER 32
#define SIGCANCEL 33
#define SIGSYNCCALL 34
#define SIGTIMER 32
#define SIGCANCEL 33
#define SIGSYNCCALL 34
@@
-128,11
+131,17
@@
int __timedwait_cp(volatile int *, int, clockid_t, const struct timespec *, int)
void __wait(volatile int *, volatile int *, int, int);
static inline void __wake(volatile void *addr, int cnt, int priv)
{
void __wait(volatile int *, volatile int *, int, int);
static inline void __wake(volatile void *addr, int cnt, int priv)
{
- if (priv) priv =
128
;
+ if (priv) priv =
FUTEX_PRIVATE
;
if (cnt<0) cnt = INT_MAX;
__syscall(SYS_futex, addr, FUTEX_WAKE|priv, cnt) != -ENOSYS ||
__syscall(SYS_futex, addr, FUTEX_WAKE, cnt);
}
if (cnt<0) cnt = INT_MAX;
__syscall(SYS_futex, addr, FUTEX_WAKE|priv, cnt) != -ENOSYS ||
__syscall(SYS_futex, addr, FUTEX_WAKE, cnt);
}
+static inline void __futexwait(volatile void *addr, int val, int priv)
+{
+ if (priv) priv = FUTEX_PRIVATE;
+ __syscall(SYS_futex, addr, FUTEX_WAIT|priv, val) != -ENOSYS ||
+ __syscall(SYS_futex, addr, FUTEX_WAIT, val);
+}
void __acquire_ptc(void);
void __release_ptc(void);
void __acquire_ptc(void);
void __release_ptc(void);
@@
-143,7
+152,7
@@
void __block_app_sigs(void *);
void __restore_sigs(void *);
#define DEFAULT_STACK_SIZE 81920
void __restore_sigs(void *);
#define DEFAULT_STACK_SIZE 81920
-#define DEFAULT_GUARD_SIZE
PAGE_SIZE
+#define DEFAULT_GUARD_SIZE
4096
#define __ATTRP_C11_THREAD ((void*)(uintptr_t)-1)
#define __ATTRP_C11_THREAD ((void*)(uintptr_t)-1)