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authorrpj <rpj>2002-02-18 03:16:52 +0000
committerrpj <rpj>2002-02-18 03:16:52 +0000
commita416ab17ecf9f2cb0f1e3f7bd645a8d1ce690ca2 (patch)
tree72f776cd64e48824a5578ff7a523bc69097143b4 /pthread_setschedparam.c
parente6f1797e9e9925ae7f9dda54806ef8f52ae3ed07 (diff)
Major reorganisation of source code; new routine and tests added.
Diffstat (limited to 'pthread_setschedparam.c')
-rw-r--r--pthread_setschedparam.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/pthread_setschedparam.c b/pthread_setschedparam.c
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+/*
+ * sched_setschedparam.c
+ *
+ * Description:
+ * POSIX thread functions that deal with thread scheduling.
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 1998 John E. Bossom
+ * Copyright(C) 1999,2002 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@ise.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include "pthread.h"
+#include "implement.h"
+#include "sched.h"
+
+int
+pthread_setschedparam(pthread_t thread, int policy,
+ const struct sched_param *param)
+{
+ int prio;
+
+ /* Validate the thread id. */
+ if (thread == NULL || thread->threadH == 0)
+ {
+ return EINVAL;
+ }
+
+ /* Validate the scheduling policy. */
+ if (policy < SCHED_MIN || policy > SCHED_MAX)
+ {
+ return EINVAL;
+ }
+
+ /* Ensure the policy is SCHED_OTHER. */
+ if (policy != SCHED_OTHER)
+ {
+ return ENOTSUP;
+ }
+
+ prio = param->sched_priority;
+
+ /* Validate priority level. */
+ if (prio < sched_get_priority_min(policy) ||
+ prio > sched_get_priority_max(policy))
+ {
+ return EINVAL;
+ }
+
+ /* This is practically guaranteed to return TRUE. */
+ (void) SetThreadPriority(thread->threadH, prio);
+
+ return 0;
+}