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Rename up_addrenv_assign() to up_addrenv_clone() and generalize its arguments so that can be used for other purposes

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This commit is contained in:
Gregory Nutt
2014-08-26 12:16:05 -06:00
parent cb8e081dba
commit e8094292e3
2 changed files with 30 additions and 28 deletions
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arch/arm/src/armv7-a/arm_addrenv.c
+15 -13
View File
@@ -48,11 +48,12 @@
* address environment * address environment
* up_addrenv_select - Instantiate an address environment * up_addrenv_select - Instantiate an address environment
* up_addrenv_restore - Restore an address environment * up_addrenv_restore - Restore an address environment
* up_addrenv_assign - Assign an address environment to a group * up_addrenv_clone - Copy an address environment from one location to
* another.
* *
* Higher-level interfaces used by the tasking logic. These interfaces are * Higher-level interfaces used by the tasking logic. These interfaces are
* used by the functions in sched/ and all operate on the thread which whose * used by the functions in sched/ and all operate on the thread which whose
* group been assigned an address environment by up_addrenv_assign(). * group been assigned an address environment by up_addrenv_clone().
* *
* up_addrenv_attach - Clone the address environment assigned to one TCB * up_addrenv_attach - Clone the address environment assigned to one TCB
* to another. This operation is done when a pthread * to another. This operation is done when a pthread
@@ -661,30 +662,31 @@ int up_addrenv_restore(FAR const save_addrenv_t *oldenv)
} }
/**************************************************************************** /****************************************************************************
* Name: up_addrenv_assign * Name: up_addrenv_clone
* *
* Description: * Description:
* Assign an address environment to a new task group. * Duplicate an address environment. This does not copy the underlying
* memory, only the representation that can be used to instantiate that
* memory as an address environment.
* *
* Input Parameters: * Input Parameters:
* addrenv - The representation of the task address environment previously * src - The address environment to be copied.
* returned by up_addrenv_create(). * dest - The location to receive the copied address environment.
* group - The new task group to receive the address environment.
* *
* Returned Value: * Returned Value:
* Zero (OK) on success; a negated errno value on failure. * Zero (OK) on success; a negated errno value on failure.
* *
****************************************************************************/ ****************************************************************************/
int up_addrenv_assign(FAR const group_addrenv_t *addrenv, int up_addrenv_clone(FAR const group_addrenv_t *src,
FAR struct task_group_s *group) FAR group_addrenv_t *dest)
{ {
DEBUGASSERT(addrenv && group); bvdbg("src=%p dest=%p\n", src, dest);
bvdbg("addrenv=%p group->addrenv=%p\n", addrenv, &group->addrenv); DEBUGASSERT(src && dest);
/* Just copy the address environment into the group */ /* Just copy the address environment from the source to the destination */
memcpy(&group->addrenv, addrenv, sizeof(group_addrenv_t)); memcpy(dest, src, sizeof(group_addrenv_t));
return OK; return OK;
} }
arch/z80/src/z180/z180_mmu.c
+15 -15
View File
@@ -192,11 +192,12 @@ return g_physhandle ? OK : -ENOMEM;
* address environment * address environment
* up_addrenv_select - Instantiate an address environment * up_addrenv_select - Instantiate an address environment
* up_addrenv_restore - Restore an address environment * up_addrenv_restore - Restore an address environment
* up_addrenv_assign - Assign an address environment to a group * up_addrenv_clone - Copy an address environment from one location to
* another.
* *
* Higher-level interfaces used by the tasking logic. These interfaces are * Higher-level interfaces used by the tasking logic. These interfaces are
* used by the functions in sched/ and all operate on the thread which whose * used by the functions in sched/ and all operate on the thread which whose
* group been assigned an address environment by up_addrenv_assign(). * group been assigned an address environment by up_addrenv_clone().
* *
* up_addrenv_attach - Clone the address environment assigned to one TCB * up_addrenv_attach - Clone the address environment assigned to one TCB
* to another. This operation is done when a pthread * to another. This operation is done when a pthread
@@ -457,33 +458,32 @@ int up_addrenv_restore(FAR const save_addrenv_t *oldenv)
} }
/**************************************************************************** /****************************************************************************
* Name: up_addrenv_assign * Name: up_addrenv_clone
* *
* Description: * Description:
* Assign an address environment to a task group. * Duplicate an address environment. This does not copy the underlying
* memory, only the representation that can be used to instantiate that
* memory as an address environment.
* *
* Input Parameters: * Input Parameters:
* addrenv - The representation of the task address environment previously * src - The address environment to be copied.
* returned by up_addrenv_create(). * dest - The location to receive the copied address environment.
* group - The task group to receive the address environment.
* *
* Returned Value: * Returned Value:
* Zero (OK) on success; a negated errno value on failure. * Zero (OK) on success; a negated errno value on failure.
* *
****************************************************************************/ ****************************************************************************/
int up_addrenv_assign(FAR const group_addrenv_t *addrenv, int up_addrenv_clone(FAR const group_addrenv_t *src,
FAR struct task_group_s *group) FAR group_addrenv_t *dest);
{ {
/* Make sure that there is no address environment in place on this TCB */ DEBUGASSERT(src && dest);
DEBUGASSERT(addrenv && group->addrenv == NULL); /* Copy the CBR structure. This is an atomic operation so no special
* precautions should be needed.
/* Save the CBR structure in the group. This is an atomic operation so no
* special precautions should be needed.
*/ */
group->addrenv = *addrenv; *dest = *src;
return OK; return OK;
} }