Changeset 201abde in mainline for kernel/generic/src/proc/thread.c

Timestamp:

2007-04-07T20:06:52Z (18 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

7e58979

Parents:

6adbe3c2

Message:

make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls

File:

• kernel/generic/src/proc/thread.c (modified) (6 diffs)

kernel/generic/src/proc/thread.c

@@ -95 +95 @@
 
 SPINLOCK_INITIALIZE(tidlock);
-uint32_t last_tid = 0;
+thread_id_t last_tid = 0;
 
 static slab_cache_t *thread_slab;
@@ -581 +581 @@
                         order(t->cycles, &cycles, &suffix);
                         
-                        printf("%-6zd %-10s %#10zx %-8s %#10zx %-3ld %#10zx "
+                        printf("%-6llu %-10s %#10zx %-8s %#10zx %-3ld %#10zx "
                             "%#10zx %9llu%c ", t->tid, t->name, t,
                             thread_states[t->state], t->task, t->task->context,
@@ -637 +637 @@
  *
  */
-unative_t sys_thread_create(uspace_arg_t *uspace_uarg, char *uspace_name)
+unative_t sys_thread_create(uspace_arg_t *uspace_uarg, char *uspace_name, thread_id_t *uspace_thread_id)
 {
         thread_t *t;
         char namebuf[THREAD_NAME_BUFLEN];
         uspace_arg_t *kernel_uarg;
-        uint32_t tid;
         int rc;
 
@@ -659 +658 @@
             false);
         if (t) {
-                tid = t->tid;
                 thread_ready(t);
-                return (unative_t) tid; 
-        } else {
+                if (uspace_thread_id != NULL)
+                        return (unative_t) copy_to_uspace(uspace_thread_id, &t->tid,
+                        sizeof(t->tid));
+                else
+                        return 0;
+        } else
                 free(kernel_uarg);
-        }
 
         return (unative_t) ENOMEM;
@@ -681 +682 @@
 /** Syscall for getting TID.
  *
- * @return Thread ID.
- */
-unative_t sys_thread_get_id(void)
+ * @param uspace_thread_id Userspace address of 8-byte buffer where to store
+ * current thread ID.
+ *
+ * @return 0 on success or an error code from @ref errno.h.
+ */
+unative_t sys_thread_get_id(thread_id_t *uspace_thread_id)
 {
         /*
@@ -689 +693 @@
          * remains constant for the lifespan of the thread.
          */
-        return THREAD->tid;
+        return (unative_t) copy_to_uspace(uspace_thread_id, &THREAD->tid,
+            sizeof(THREAD->tid));
 }