From eca19329e11c472df9b62da0a643de6f90bb7f46 Mon Sep 17 00:00:00 2001
From: rpj <rpj>
Date: Tue, 28 Jul 1998 09:29:22 +0000
Subject: Tue Jul 28 14:04:29 1998  Ross Johnson  <rpj@swan.canberra.edu.au>

        * implement.h: Add _PTHREAD_VALID macro.

        * sync.c (pthread_join): Modify to use the new thread
        type and _pthread_delete_thread(). Rename "target" to "thread".
        Remove extra local variable "target".
        (pthread_detach): Ditto.

        * signal.c (pthread_sigmask): Move init of "us" out of inner block.
        Fix instance of "this" should have been "us". Rename "us" to "thread".

        * sched.c (pthread_setschedparam): Modify to use the new thread
        type.
        (pthread_getschedparam): Ditto.

        * private.c (_pthread_find_thread): Fix return type and arg.

        * implement.h: Remove _PTHREAD_YES and _PTHREAD_NO.
        (_pthread_new_thread): Add prototype.
        (_pthread_find_thread): Ditto.
        (_pthread_delete_thread): Ditto.
        (_pthread_new_thread_entry): Remove prototype.
        (_pthread_find_thread_entry): Ditto.
        (_pthread_delete_thread_entry): Ditto.
        (  _PTHREAD_NEW, _PTHREAD_INUSE, _PTHREAD_EXITED, _PTHREAD_REUSE):
        Add.


        * create.c (pthread_create): Minor rename "us" to "new" (I need
        these cues but it doesn't stop me coming out with some major bugs
        at times).
        Load start_routine and arg into the thread so the wrapper can
        call it.

        * exit.c (pthread_exit): Fix pthread_this should be pthread_self.

        * cancel.c (pthread_setcancelstate): Change
        _pthread_threads_thread_t * to pthread_t and init with
        pthread_this().
        (pthread_setcanceltype): Ditto.
---
 cancel.c | 25 +++++++++++--------------
 1 file changed, 11 insertions(+), 14 deletions(-)

(limited to 'cancel.c')

diff --git a/cancel.c b/cancel.c
index 8974e5c..e79ee08 100644
--- a/cancel.c
+++ b/cancel.c
@@ -12,7 +12,7 @@ int
 pthread_setcancelstate(int state,
 		       int *oldstate)
 {
-  _pthread_threads_thread_t * us = _PTHREAD_THIS;
+  pthread_t us = pthread_self();
 
   /* Validate the new cancellation state. */
   if (state != PTHREAD_CANCEL_ENABLE 
@@ -33,7 +33,7 @@ pthread_setcancelstate(int state,
 int
 pthread_setcanceltype(int type, int *oldtype)
 {
-  _pthread_threads_thread_t * us = _PTHREAD_THIS;
+  pthread_t us = pthread_self();
 
   /* Validate the new cancellation type. */
   if (type != PTHREAD_CANCEL_DEFERRED 
@@ -54,32 +54,29 @@ pthread_setcanceltype(int type, int *oldtype)
 int
 pthread_cancel(pthread_t thread)
 {
-  _pthread_threads_thread_t * us = _PTHREAD_THIS;
-
-  if (us == NULL)
+  if (_PTHREAD_VALID(thread)
+      && thread->ptstatus != _PTHREAD_REUSE)
     {
-      return ESRCH;
+      thread->cancel_pending = TRUE;
+      return 0;
     }
 
-  us->cancel_pending = TRUE;
-
-  return 0;
+  return ESRCH;
 }
 
 void
 pthread_testcancel(void)
 {
-  _pthread_threads_thread_t * us;
+  pthread_t thread;
 
-  us = _PTHREAD_THIS;
+  thread = pthread_self();
 
-  if (us == NULL
-      || us->cancelstate == PTHREAD_CANCEL_DISABLE)
+  if (thread->cancelstate == PTHREAD_CANCEL_DISABLE)
     {
       return;
     }
 
-  if (us->cancel_pending == TRUE)
+  if (thread->cancel_pending == TRUE)
     {
       pthread_exit(PTHREAD_CANCELED);
 
-- 
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