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-rw-r--r--mit-pthreads/machdep/engine-romp-bsd.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/mit-pthreads/machdep/engine-romp-bsd.c b/mit-pthreads/machdep/engine-romp-bsd.c
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+++ b/mit-pthreads/machdep/engine-romp-bsd.c
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+/* ==== machdep.c ============================================================
+ * Copyright (c) 1993 Chris Provenzano, proven@athena.mit.edu
+ *
+ * Description : Machine dependent functions for NetBSD on i386
+ *
+ * 1.00 93/08/04 proven
+ * -Started coding this file.
+ */
+
+#ifndef lint
+static const char rcsid[] = "$Id$";
+#endif
+
+#include <pthread.h>
+
+/* ==========================================================================
+ * machdep_save_state()
+ */
+int machdep_save_state(void)
+{
+ return(_pthread_save(pthread_run->machdep_data.machdep_state, 0, 0));
+}
+
+/* ==========================================================================
+ * machdep_restore_state()
+ */
+void machdep_restore_state(void)
+{
+ _pthread_restore(pthread_run->machdep_data.machdep_state);
+}
+
+/* ==========================================================================
+ * machdep_set_thread_timer()
+ */
+void machdep_set_thread_timer(struct machdep_pthread *machdep_pthread)
+{
+ if (setitimer(ITIMER_VIRTUAL, &(machdep_pthread->machdep_timer), NULL)) {
+ PANIC();
+ }
+}
+
+/* ==========================================================================
+ * machdep_unset_thread_timer()
+ */
+void machdep_unset_thread_timer(struct machdep_pthread *machdep_pthread)
+{
+ struct itimerval zeroval = { { 0, 0 }, { 0, 0} };
+
+ if (setitimer(ITIMER_VIRTUAL, &zeroval, NULL)) {
+ PANIC();
+ }
+}
+
+/* ==========================================================================
+ * machdep_pthread_cleanup()
+ */
+void *machdep_pthread_cleanup(struct machdep_pthread *machdep_pthread)
+{
+ return(machdep_pthread->machdep_stack);
+}
+
+/* ==========================================================================
+ * machdep_pthread_start()
+ */
+void machdep_pthread_start(void)
+{
+ context_switch_done();
+ sig_check_and_resume();
+
+ /* Run current threads start routine with argument */
+ pthread_exit(pthread_run->machdep_data.start_routine
+ (pthread_run->machdep_data.start_argument));
+
+ /* should never reach here */
+ PANIC();
+}
+
+/* ==========================================================================
+ * machdep_pthread_create()
+ */
+void machdep_pthread_create(struct machdep_pthread *machdep_pthread,
+ void *(* start_routine)(), void *start_argument, long stack_size,
+ void *stack_start, long nsec)
+{
+ machdep_pthread->machdep_stack = stack_start;
+
+ machdep_pthread->start_routine = start_routine;
+ machdep_pthread->start_argument = start_argument;
+
+ machdep_pthread->machdep_timer.it_value.tv_sec = 0;
+ machdep_pthread->machdep_timer.it_interval.tv_sec = 0;
+ machdep_pthread->machdep_timer.it_interval.tv_usec = 0;
+ machdep_pthread->machdep_timer.it_value.tv_usec = nsec / 1000;
+
+ _pthread_save(machdep_pthread->machdep_state,
+ (void *)((int)machdep_pthread->machdep_stack + stack_size),
+ machdep_pthread_start);
+}
+