From 17879f4750a2bc0d556c8cd1d0f6715b127d681a Mon Sep 17 00:00:00 2001
From: Jennifer Averett <Jennifer.Averett@OARcorp.com>
Date: Thu, 18 Nov 1999 19:43:13 +0000
Subject: + Debuged to the point that you could open, unlink and close a
 semaphore.   but all paths have not been checked, yet.

---
 c/src/exec/posix/src/mqueueunlink.c      |  3 +--
 c/src/exec/posix/src/semaphorenametoid.c | 15 ++++++-------
 c/src/exec/posix/src/semopen.c           | 36 ++++++++++++++++----------------
 c/src/exec/posix/src/semunlink.c         |  5 ++---
 4 files changed, 29 insertions(+), 30 deletions(-)

(limited to 'c/src/exec')

diff --git a/c/src/exec/posix/src/mqueueunlink.c b/c/src/exec/posix/src/mqueueunlink.c
index 4a884f7b82..421b91543c 100644
--- a/c/src/exec/posix/src/mqueueunlink.c
+++ b/c/src/exec/posix/src/mqueueunlink.c
@@ -43,8 +43,7 @@ int mq_unlink(
   Objects_Locations                 location;
  
   status = _POSIX_Message_queue_Name_to_id( name, &the_mq_id );
- 
-  if ( !status )
+   if ( status != 0 )
     set_errno_and_return_minus_one( status );
  
   the_mq = _POSIX_Message_queue_Get( the_mq_id, &location );
diff --git a/c/src/exec/posix/src/semaphorenametoid.c b/c/src/exec/posix/src/semaphorenametoid.c
index 8761f79f8b..c6de93c201 100644
--- a/c/src/exec/posix/src/semaphorenametoid.c
+++ b/c/src/exec/posix/src/semaphorenametoid.c
@@ -20,7 +20,8 @@
  *
  *  _POSIX_Semaphore_Name_to_id
  *
- *  XXX
+ *  Look up the specified name and attempt to locate the id
+ *  for the associated semaphore.
  */
 
 int _POSIX_Semaphore_Name_to_id(
@@ -30,12 +31,12 @@ int _POSIX_Semaphore_Name_to_id(
 {
   Objects_Name_to_id_errors  status;
 
-  status = _Objects_Name_to_id( &_POSIX_Semaphore_Information, (char *)name, 0, id );
+  status = _Objects_Name_to_id( 
+    &_POSIX_Semaphore_Information, (char *)name, 0, id );
 
-  if ( status == OBJECTS_SUCCESSFUL ) {
-	  return 0;
-  } else {
-	  return EINVAL;
-  }
+  if ( status == OBJECTS_SUCCESSFUL )
+    return 0;
+
+  return EINVAL;
 }
 
diff --git a/c/src/exec/posix/src/semopen.c b/c/src/exec/posix/src/semopen.c
index c0ac7ffe3b..b52c436e74 100644
--- a/c/src/exec/posix/src/semopen.c
+++ b/c/src/exec/posix/src/semopen.c
@@ -43,9 +43,7 @@ sem_t *sem_open(
 
   if ( oflag & O_CREAT ) {
     va_start(arg, oflag);
-    /*mode = (mode_t) va_arg( arg, mode_t * );*/
     mode = va_arg( arg, mode_t );
-    /*value = (unsigned int) va_arg( arg, unsigned int * );*/
     value = va_arg( arg, unsigned int );
     va_end(arg);
   }
@@ -61,35 +59,34 @@ sem_t *sem_open(
 
   if ( status ) {
 
-    if ( status == EINVAL ) {      /* name -> ID translation failed */
-      if ( !(oflag & O_CREAT) ) {  /* willing to create it? */
+    /*
+     * Unless we are willing to create name -> ID translation failure is
+     * an error.
+     */
+
+    if ( status == EINVAL ) { 
+      if ( !(oflag & O_CREAT) ) {
         set_errno_and_return_minus_one_cast( ENOENT, sem_t * );
       }
-      /* we are willing to create it */
     }
-    /* some type of error */
-    /*set_errno_and_return_minus_one_cast( status, sem_t * );*/
 
-  } else {                /* name -> ID translation succeeded */
+  } else { 
+
+    /*
+     * Check for existence with creation.
+     */
 
     if ( (oflag & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL) ) {
       set_errno_and_return_minus_one_cast( EEXIST, sem_t * );
     }
 
-    /* 
-     * XXX In this case we need to do an ID->pointer conversion to
-     *     check the mode.   This is probably a good place for a subroutine.
-     */
-
     the_semaphore = _POSIX_Semaphore_Get( &the_semaphore_id, &location );
     the_semaphore->open_count += 1;
-
     return (sem_t *)&the_semaphore->Object.id;
 
   } 
   
-  /* XXX verify this comment...
-   *
+  /* 
    *  At this point, the semaphore does not exist and everything has been
    *  checked. We should go ahead and create a semaphore.
    */
@@ -101,9 +98,12 @@ sem_t *sem_open(
     &the_semaphore
   );
  
+  /*
+   * errno was set by Create_support, so don't set it again.
+   */
+
   if ( status == -1 )
-    return (sem_t *) -1;
+    return SEM_FAILED;
 
   return (sem_t *) &the_semaphore->Object.id;
- 
 }
diff --git a/c/src/exec/posix/src/semunlink.c b/c/src/exec/posix/src/semunlink.c
index 7fc2c56a28..105a710c47 100644
--- a/c/src/exec/posix/src/semunlink.c
+++ b/c/src/exec/posix/src/semunlink.c
@@ -31,8 +31,7 @@ int sem_unlink(
   Objects_Locations                 location;
  
   status = _POSIX_Semaphore_Name_to_id( name, &the_semaphore_id );
-   
-  if ( !status )
+  if ( status != 0 )
     set_errno_and_return_minus_one( status );
 
   the_semaphore = _POSIX_Semaphore_Get( &the_semaphore_id, &location );
@@ -55,7 +54,7 @@ int sem_unlink(
 #endif
 
       the_semaphore->linked = FALSE;
-
+      _POSIX_Semaphore_Namespace_remove( the_semaphore );
       _POSIX_Semaphore_Delete( the_semaphore );
 
       _Thread_Enable_dispatch();
-- 
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