commit d15607b9ddd9872b48fe3ac8c68f9637044be310
from: Russ Cox <rsc@swtch.com>
date: Mon Jan 20 01:52:35 2020 UTC

libthread: rm OpenBSD.c

This should have been deleted in 20f5692b (2012-07-14),
which removed the mkfile and sysofiles.sh references to it.

commit - 57157d856e4bf66326771e8036062eb6881280ca
commit + d15607b9ddd9872b48fe3ac8c68f9637044be310
blob - 80a5097755f35ccc44afa3d86850778bf175c026 (mode 644)
blob + /dev/null
--- src/libthread/OpenBSD.c
+++ /dev/null
@@ -1,145 +0,0 @@
-#include "threadimpl.h"
-#include "BSD.c"
-
-#include <dlfcn.h>
-
-struct thread_tag {
-	struct thread_tag	*next;
-	spinlock_t		l;
-	volatile int		key;
-	void			*data;
-};
-
-static spinlock_t mlock;
-static spinlock_t dl_lock;
-static spinlock_t tag_lock;
-static struct thread_tag *thread_tag_store = nil;
-static uint nextkey = 0;
-
-void
-_thread_malloc_lock(void)
-{
-	_spinlock(&mlock);
-}
-
-void
-_thread_malloc_unlock(void)
-{
-	_spinunlock(&mlock);
-}
-
-void
-_thread_malloc_init(void)
-{
-}
-
-/*
- * for ld.so
- */
-void
-_thread_dl_lock(int t)
-{
-	if(t)
-		_spinunlock(&dl_lock);
-	else
-		_spinlock(&dl_lock);
-}
-
-/*
- * for libc
- */
-static void
-_thread_tag_init(void **tag)
-{
-	struct thread_tag *t;
-
-	_spinlock(&tag_lock);
-	if(*tag == nil) {
-		t = malloc(sizeof (*t));
-		if(t != nil) {
-			memset(&t->l, 0, sizeof(t->l));
-			t->key = nextkey++;
-			*tag = t;
-		}
-	}
-	_spinunlock(&tag_lock);
-}
-
-void
-_thread_tag_lock(void **tag)
-{
-	struct thread_tag *t;
-
-	if(*tag == nil)
-		_thread_tag_init(tag);
-	t = *tag;
-	_spinlock(&t->l);
-}
-
-void
-_thread_tag_unlock(void **tag)
-{
-	struct thread_tag *t;
-
-	if(*tag == nil)
-		_thread_tag_init(tag);
-	t = *tag;
-	_spinunlock(&t->l);
-}
-
-static void *
-_thread_tag_insert(struct thread_tag *t, void *v)
-{
-	t->data = v;
-	t->next = thread_tag_store;
-	thread_tag_store = t;
-	return t;
-}
-
-static void *
-_thread_tag_lookup(struct thread_tag *tag, int size)
-{
-	struct thread_tag *t;
-	void *p;
-
-	_spinlock(&tag->l);
-	for(t = thread_tag_store; t != nil; t = t->next)
-		if(t->key == tag->key)
-			break;
-	if(t == nil) {
-		p = malloc(size);
-		if(p == nil) {
-			_spinunlock(&tag->l);
-			return nil;
-		}
-		_thread_tag_insert(tag, p);
-	}
-	_spinunlock(&tag->l);
-	return tag->data;
-}
-
-void *
-_thread_tag_storage(void **tag, void *storage, size_t n, void *err)
-{
-	struct thread_tag *t;
-	void *r;
-
-	if(*tag == nil)
-		_thread_tag_init(tag);
-	t = *tag;
-
-	r = _thread_tag_lookup(t, n);
-	if(r == nil)
-		r = err;
-	else
-		memcpy(r, storage, n);
-	return r;
-}
-
-void
-_pthreadinit(void)
-{
-	__isthreaded = 1;
-	dlctl(nil, DL_SETTHREADLCK, _thread_dl_lock);
-	signal(SIGUSR2, sigusr2handler);
-}