Add yaz_thread_{create,join,detach}

[yaz-moved-to-github.git] / src / thread_create.c

diff --git a/src/thread_create.c b/src/thread_create.c
new file mode 100644 (file)
index 0000000..130efed
--- /dev/null
+++ b/src/thread_create.c
@@ -0,0 +1,93 @@
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) 1995-2010 Index Data
+ * See the file LICENSE for details.
+ */
+
+/**
+ * \file thread_create.c
+ * \brief Implements thread creation wrappers
+ *
+ */
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <stddef.h>
+#include <yaz/xmalloc.h>
+#include <yaz/log.h>
+#include <yaz/thread_create.h>
+
+#if YAZ_POSIX_THREADS
+#include <pthread.h>
+#endif
+#ifdef WIN32
+#include <windows.h>
+#endif
+
+struct yaz_thread {
+#if YAZ_POSIX_THREADS
+    pthread_t id;
+#else
+    void *return_data;
+#ifdef WIN32
+    HANDLE id;
+#endif
+#endif
+};
+
+yaz_thread_t yaz_thread_create(void *(*start_routine)(void *p), void *arg)
+{
+    yaz_thread_t t = xmalloc(sizeof(*t));
+#if YAZ_POSIX_THREADS
+    int r = pthread_create(&t->id, 0, start_routine, arg);
+    if (r)
+    {
+        xfree(t);
+        t = 0;
+    }
+#else
+    t->return_data = start_routine(arg);
+#endif
+    return t;
+}
+
+void yaz_thread_join(yaz_thread_t *tp, void **value_ptr)
+{
+    if (*tp)
+    {
+#ifdef YAZ_POSIX_THREADS
+        pthread_join((*tp)->id, value_ptr);
+#else
+        if (value_ptr)
+            *value_ptr = (*tp)->return_data;
+#endif
+        xfree(*tp);
+        *tp = 0;
+    }
+}
+
+void yaz_thread_detach(yaz_thread_t *tp)
+{
+    if (*tp)
+    {
+#ifdef YAZ_POSIX_THREADS
+        pthread_detach((*tp)->id);
+#endif
+        xfree(*tp);
+        *tp = 0;
+    }
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+