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-rw-r--r--src/svc_run.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/src/svc_run.c b/src/svc_run.c
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+/*
+ * Copyright (c) 2009, Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * - Neither the name of Sun Microsystems, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This is the rpc server side idle loop
+ * Wait for input, call server program.
+ */
+#include <pthread.h>
+#include <reentrant.h>
+#include <err.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/poll.h>
+
+
+#include <rpc/rpc.h>
+#include "rpc_com.h"
+#include <sys/select.h>
+
+void
+svc_run()
+{
+ int i;
+ struct pollfd *my_pollfd = NULL;
+ int last_max_pollfd = 0;
+
+ for (;;) {
+ int max_pollfd = svc_max_pollfd;
+ if (max_pollfd == 0 && svc_pollfd == NULL)
+ break;
+
+ if (last_max_pollfd != max_pollfd)
+ {
+ struct pollfd *new_pollfd
+ = realloc (my_pollfd, sizeof (struct pollfd) * max_pollfd);
+
+ if (new_pollfd == NULL)
+ {
+ warn ("svc_run: - out of memory");
+ break;
+ }
+
+ my_pollfd = new_pollfd;
+ last_max_pollfd = max_pollfd;
+ }
+
+ for (i = 0; i < max_pollfd; ++i)
+ {
+ my_pollfd[i].fd = svc_pollfd[i].fd;
+ my_pollfd[i].events = svc_pollfd[i].events;
+ my_pollfd[i].revents = 0;
+ }
+
+ switch (i = poll (my_pollfd, max_pollfd, -1))
+ {
+ case -1:
+ if (errno == EINTR)
+ continue;
+ warn ("svc_run: - poll failed");
+ break;
+ case 0:
+ continue;
+ default:
+ svc_getreq_poll (my_pollfd, i);
+ continue;
+ }
+ break;
+ }
+
+ free (my_pollfd);
+}
+
+/*
+ * This function causes svc_run() to exit by telling it that it has no
+ * more work to do.
+ */
+void
+svc_exit()
+{
+ extern rwlock_t svc_fd_lock;
+
+ rwlock_wrlock(&svc_fd_lock);
+ free (svc_pollfd);
+ svc_pollfd = NULL;
+ svc_max_pollfd = 0;
+ rwlock_unlock(&svc_fd_lock);
+}