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authorproven <proven@NetBSD.org>1993-11-14 22:06:22 +0000
committerproven <proven@NetBSD.org>1993-11-14 22:06:22 +0000
commit89fc7bac0859332dbb6b0fd0833e74557beadc29 (patch)
tree86e4d7e252c6c2d1986520949df2e3190a767e77 /lib/libpthread/include/pthread.h
parent08322f94235c9fdbef8dc69c9699e836b6caf9d4 (diff)
Initial release of the POSIX 1003.4a Draft 7 thread implementation.
Diffstat (limited to 'lib/libpthread/include/pthread.h')
-rw-r--r--lib/libpthread/include/pthread.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/lib/libpthread/include/pthread.h b/lib/libpthread/include/pthread.h
new file mode 100644
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+++ b/lib/libpthread/include/pthread.h
@@ -0,0 +1,93 @@
+/* ==== pthread.h ============================================================
+ * Copyright (c) 1993 by Chris Provenzano, proven@athena.mit.edu
+ *
+ * Description : Basic pthread header.
+ *
+ * 1.00 93/07/20 proven
+ * -Started coding this file.
+ */
+
+#include <pthread/copyright.h>
+#include <pthread/machdep.h>
+#include <pthread/kernel.h>
+#include <pthread/queue.h>
+#include <pthread/mutex.h>
+#include <pthread/cond.h>
+#include <pthread/fd.h>
+
+#include <pthread/util.h>
+/* #include <pthread/stdio.h> Because I'm a moron -- proven */
+#include <errno.h>
+
+/* More includes, that need size_t or NULL */
+#include <pthread/pthread_attr.h>
+
+enum pthread_state {
+ PS_RUNNING,
+ PS_MUTEX_WAIT,
+ PS_COND_WAIT,
+ PS_FDLR_WAIT,
+ PS_FDLW_WAIT,
+ PS_FDR_WAIT,
+ PS_FDW_WAIT,
+ PS_DEAD
+};
+
+struct pthread {
+ struct machdep_pthread machdep_data;
+ struct pthread_queue *queue;
+ enum pthread_state state;
+ pthread_attr_t attr;
+
+ /*
+ * Thread implementations are just multiple queue type implemenations,
+ * Below are the various link lists currently necessary
+ * It is possible for a thread to be on multiple, or even all the
+ * queues at once, much care must be taken during queue manipulation.
+ */
+ struct pthread *pll; /* ALL threads, in any state */
+ /* struct pthread *rll; /* Current run queue, before resced */
+ struct pthread *next; /* Standard for mutexes, etc ... */
+ struct pthread *s_next; /* For sleeping threads */
+ /* struct pthread *fd_next; /* For kernel fd operations */
+
+ int fd; /* Used when thread waiting on fd */
+
+ semaphore lock;
+ int error;
+};
+
+typedef struct pthread* pthread_t;
+
+/*
+ * Globals
+ */
+extern struct pthread *pthread_run;
+extern struct pthread *pthread_initial;
+extern struct pthread *pthread_link_list;
+extern pthread_attr_t pthread_default_attr;
+extern struct pthread_queue pthread_current_queue;
+extern struct fd_table_entry *fd_table[];
+
+/*
+ * New functions
+ */
+
+__BEGIN_DECLS
+
+int pthread_create __P((pthread_t *, const pthread_attr_t *,
+ void * (*start_routine)(void *), void *));
+void pthread_exit __P((void *));
+pthread_t pthread_self __P((void));
+int pthread_equal __P((pthread_t, pthread_t));
+
+#if defined(PTHREAD_KERNEL)
+
+void pthread_yield __P((void));
+
+/* Not valid, but I can't spell so this will be caught at compile time */
+#define pthread_yeild(notvalid)
+
+#endif
+
+__END_DECLS