X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=thread.h;h=a82c01b61d07d625e519297cea73a07658300829;hb=7efe98a674232612e623f7ff1b0bf033662f21d3;hp=f7ab18c553c4600b78374f92cc3d8db97fc494ff;hpb=631cfb58c2bd693774ee9ffe59908af4423167d4;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/thread.h b/thread.h
index f7ab18c..a82c01b 100644
--- a/thread.h
+++ b/thread.h
@@ -1,8 +1,15 @@
 #if defined(USE_THREADS) || defined(USE_ITHREADS)
 
+#if defined(VMS)
+#include <builtins.h>
+#endif
+
 #ifdef WIN32
 #  include <win32thread.h>
 #else
+#ifdef NETWARE
+#  include <nw5thread.h>
+#else
 #  ifdef OLD_PTHREADS_API /* Here be dragons. */
 #    define DETACH(t) \
     STMT_START {						\
@@ -32,13 +39,25 @@
 #      define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
 #      define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
 #    endif
+#    if defined(__hpux) && defined(__ux_version) && __ux_version <= 1020
+#      define pthread_attr_init(a) pthread_attr_create(a)
+       /* XXX pthread_setdetach_np() missing in DCE threads on HP-UX 10.20 */
+#      define PTHREAD_ATTR_SETDETACHSTATE(a,s)	(0)
+#      define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
+#      define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
+#      define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
+#      define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
+#    endif
 #    if defined(DJGPP) || defined(__OPEN_VM)
 #      define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
 #      define YIELD pthread_yield(NULL)
 #    endif
 #  endif
+#  if !defined(__hpux) || !defined(__ux_version) || __ux_version > 1020
 #    define pthread_mutexattr_default NULL
 #    define pthread_condattr_default  NULL
+#  endif
+#endif	/* NETWARE */
 #endif
 
 #ifndef PTHREAD_CREATE
@@ -58,6 +77,10 @@
 #  endif
 #endif
 
+#ifdef DGUX
+#  define THREAD_CREATE_NEEDS_STACK (16*1024)
+#endif
+
 #ifdef I_MACH_CTHREADS
 
 /* cthreads interface */
@@ -117,6 +140,7 @@
 #define INIT_THREADS		cthread_init()
 #define YIELD			cthread_yield()
 #define ALLOC_THREAD_KEY	NOOP
+#define FREE_THREAD_KEY		NOOP
 #define SET_THREAD_SELF(thr)	(thr->self = cthread_self())
 
 #endif /* I_MACH_CTHREADS */
@@ -229,8 +253,22 @@
     } STMT_END
 #endif /* JOIN */
 
+/* Use an unchecked fetch of thread-specific data instead of a checked one.
+ * It would fail if the key were bogus, but if the key were bogus then
+ * Really Bad Things would be happening anyway. --dan */
+#if (defined(__ALPHA) && (__VMS_VER >= 70000000)) || \
+    (defined(__alpha) && defined(__osf__)) /* Available only on >= 4.0 */
+#  define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
+#endif
+
+#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
+#  define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
+#else
+#  define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
+#endif
+
 #ifndef PERL_GET_CONTEXT
-#  define PERL_GET_CONTEXT	pthread_getspecific(PL_thr_key)
+#  define PERL_GET_CONTEXT	PTHREAD_GETSPECIFIC(PL_thr_key)
 #endif
 
 #ifndef PERL_SET_CONTEXT
@@ -251,12 +289,37 @@
 #  define ALLOC_THREAD_KEY \
     STMT_START {						\
 	if (pthread_key_create(&PL_thr_key, 0))	{		\
-	    fprintf(stderr, "panic: pthread_key_create");	\
+	    PerlIO_printf(PerlIO_stderr(), "panic: pthread_key_create");	\
 	    exit(1);						\
 	}							\
     } STMT_END
 #endif
 
+#ifndef FREE_THREAD_KEY
+#  define FREE_THREAD_KEY \
+    STMT_START {						\
+	pthread_key_delete(PL_thr_key);				\
+    } STMT_END
+#endif
+
+void Perl_atfork_lock(void);
+void Perl_atfork_unlock(void);
+
+#ifndef PTHREAD_ATFORK
+#  ifdef HAS_PTHREAD_ATFORK
+#    define PTHREAD_ATFORK(prepare,parent,child)		\
+	pthread_atfork(prepare,parent,child)
+#  else
+#    ifdef HAS_FORK
+#      define PTHREAD_ATFORK(prepare,parent,child)		\
+	 Perl_croak(aTHX_ "No pthread_atfork() -- fork() too unsafe");
+#    else
+#      define PTHREAD_ATFORK(prepare,parent,child)		\
+	 NOOP
+#    endif
+#  endif
+#endif
+
 #ifndef THREAD_RET_TYPE
 #  define THREAD_RET_TYPE	void *
 #  define THREAD_RET_CAST(p)	((void *)(p))
@@ -411,3 +474,7 @@ typedef struct condpair {
 #ifndef INIT_THREADS
 #  define INIT_THREADS NOOP
 #endif
+
+#ifndef PTHREAD_ATFORK
+#  define PTHREAD_ATFORK(prepare,parent,child)	NOOP
+#endif