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Directive rtems_task_variable_get() added by Eric Norum.

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This commit is contained in:
Joel Sherrill
2000-01-23 19:07:02 +00:00
parent b5a31d4479
commit 8d37343a5d
6 changed files with 172 additions and 2 deletions
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c/src/exec/rtems/include/rtems/rtems/tasks.h
+12
View File
@@ -416,6 +416,18 @@ rtems_status_code rtems_task_variable_add(
void (*dtor)(void *)
);
/*
* rtems_task_variable_get
*
* This directive gets the value of a task variable.
*/
rtems_status_code rtems_task_variable_get(
rtems_id tid,
void **ptr,
void **result
);
/*
* rtems_task_variable_delete
*
c/src/exec/rtems/src/Makefile.am
+2 -1
View File
@@ -14,7 +14,8 @@ MP_C_FILES = eventmp.c mp.c msgmp.c partmp.c regionmp.c semmp.c signalmp.c \
TASK_C_FILES = tasks.c taskcreate.c taskdelete.c taskgetnote.c taskident.c \
taskinitusers.c taskissuspended.c taskmode.c taskrestart.c taskresume.c \
tasksetnote.c tasksetpriority.c taskstart.c tasksuspend.c \
taskwakeafter.c taskwakewhen.c taskvariableadd.c taskvariabledelete.c
taskwakeafter.c taskwakewhen.c taskvariableadd.c taskvariabledelete.c \
taskvariableget.c
RATEMON_C_FILES = ratemon.c ratemoncancel.c ratemoncreate.c ratemondelete.c \
ratemongetstatus.c ratemonident.c ratemonperiod.c ratemontimeout.c
c/src/exec/rtems/src/taskvariableget.c
+72
View File
@@ -0,0 +1,72 @@
/*
* rtems_task_variable_get - Get a per-task variable
*
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <rtems/system.h>
#include <rtems/rtems/tasks.h>
#include <rtems/score/wkspace.h>
/*
* rtems_task_variable_get
*
* This directive gets the value of a task variable.
*/
rtems_status_code rtems_task_variable_get(
rtems_id tid,
void **ptr,
void **result
)
{
Thread_Control *the_thread;
Objects_Locations location;
rtems_task_variable_t *tvp;
the_thread = _Thread_Get (tid, &location);
switch (location) {
case OBJECTS_REMOTE:
#if defined(RTEMS_MULTIPROCESSING)
_Thread_Dispatch();
return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
#endif
case OBJECTS_ERROR:
return RTEMS_INVALID_ID;
default:
return RTEMS_INTERNAL_ERROR;
case OBJECTS_LOCAL:
/*
* Figure out if the variable is in this task's list.
*/
tvp = the_thread->task_variables;
while (tvp) {
if (tvp->ptr == ptr) {
/*
* Should this return the current (i.e not the
* saved) value if `tid' is the current task?
*/
*result = tvp->var;
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
tvp = tvp->next;
}
_Thread_Enable_dispatch();
return RTEMS_INVALID_ADDRESS;
}
return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
}
cpukit/rtems/include/rtems/rtems/tasks.h
+12
View File
@@ -416,6 +416,18 @@ rtems_status_code rtems_task_variable_add(
void (*dtor)(void *)
);
/*
* rtems_task_variable_get
*
* This directive gets the value of a task variable.
*/
rtems_status_code rtems_task_variable_get(
rtems_id tid,
void **ptr,
void **result
);
/*
* rtems_task_variable_delete
*
cpukit/rtems/src/Makefile.am
+2 -1
View File
@@ -14,7 +14,8 @@ MP_C_FILES = eventmp.c mp.c msgmp.c partmp.c regionmp.c semmp.c signalmp.c \
TASK_C_FILES = tasks.c taskcreate.c taskdelete.c taskgetnote.c taskident.c \
taskinitusers.c taskissuspended.c taskmode.c taskrestart.c taskresume.c \
tasksetnote.c tasksetpriority.c taskstart.c tasksuspend.c \
taskwakeafter.c taskwakewhen.c taskvariableadd.c taskvariabledelete.c
taskwakeafter.c taskwakewhen.c taskvariableadd.c taskvariabledelete.c \
taskvariableget.c
RATEMON_C_FILES = ratemon.c ratemoncancel.c ratemoncreate.c ratemondelete.c \
ratemongetstatus.c ratemonident.c ratemonperiod.c ratemontimeout.c
cpukit/rtems/src/taskvariableget.c
+72
View File
@@ -0,0 +1,72 @@
/*
* rtems_task_variable_get - Get a per-task variable
*
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <rtems/system.h>
#include <rtems/rtems/tasks.h>
#include <rtems/score/wkspace.h>
/*
* rtems_task_variable_get
*
* This directive gets the value of a task variable.
*/
rtems_status_code rtems_task_variable_get(
rtems_id tid,
void **ptr,
void **result
)
{
Thread_Control *the_thread;
Objects_Locations location;
rtems_task_variable_t *tvp;
the_thread = _Thread_Get (tid, &location);
switch (location) {
case OBJECTS_REMOTE:
#if defined(RTEMS_MULTIPROCESSING)
_Thread_Dispatch();
return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
#endif
case OBJECTS_ERROR:
return RTEMS_INVALID_ID;
default:
return RTEMS_INTERNAL_ERROR;
case OBJECTS_LOCAL:
/*
* Figure out if the variable is in this task's list.
*/
tvp = the_thread->task_variables;
while (tvp) {
if (tvp->ptr == ptr) {
/*
* Should this return the current (i.e not the
* saved) value if `tid' is the current task?
*/
*result = tvp->var;
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
tvp = tvp->next;
}
_Thread_Enable_dispatch();
return RTEMS_INVALID_ADDRESS;
}
return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
}