1 files changed, 156 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/srclib/apr/test/testflock.c b/rubbos/app/httpd-2.0.64/srclib/apr/test/testflock.c
new file mode 100644
index 00000000..86f25ba2
--- /dev/null
+++ b/rubbos/app/httpd-2.0.64/srclib/apr/test/testflock.c
@@ -0,0 +1,156 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * USAGE
+ *
+ * Start one process, no args, and place it into the background. Start a
+ * second process with the "-r" switch to attempt a read on the file
+ * created by the first process.
+ *
+ * $ ./testflock &
+ * ...messages...
+ * $ ./testflock -r
+ * ...messages...
+ *
+ * The first process will sleep for 30 seconds while holding a lock. The
+ * second process will attempt to grab it (non-blocking) and fail. It
+ * will then grab it with a blocking scheme. When the first process' 30
+ * seconds are up, it will exit (thus releasing its lock). The second
+ * process will acquire the lock, then exit.
+ */
+
+#include "apr_pools.h"
+#include "apr_file_io.h"
+#include "apr_time.h"
+#include "apr_general.h"
+#include "apr_getopt.h"
+#include "apr_strings.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+const char *testfile = "testfile.tmp";
+
+static apr_pool_t *pool = NULL;
+
+static void errmsg(const char *msg)
+{
+    if (pool != NULL)
+        apr_pool_destroy(pool);
+    fprintf(stderr, msg);
+    exit(1);
+}
+
+static void errmsg2(const char *msg, apr_status_t rv)
+{
+    char *newmsg;
+    char errstr[120];
+
+    apr_strerror(rv, errstr, sizeof errstr);
+    newmsg = apr_psprintf(pool, "%s: %s (%d)\n",
+                          msg, errstr, rv);
+    errmsg(newmsg);
+    exit(1);
+}
+
+static void do_read(void)
+{
+    apr_file_t *file;
+    apr_status_t status;
+
+    if (apr_file_open(&file, testfile, APR_WRITE,
+                 APR_OS_DEFAULT, pool) != APR_SUCCESS)
+        errmsg("Could not open test file.\n");
+    printf("Test file opened.\n");
+
+    status = apr_file_lock(file, APR_FLOCK_EXCLUSIVE | APR_FLOCK_NONBLOCK);
+    if (!APR_STATUS_IS_EAGAIN(status)) {
+        char msg[200];
+        errmsg(apr_psprintf(pool, "Expected APR_EAGAIN. Got %d: %s.\n",
+                            status, apr_strerror(status, msg, sizeof(msg))));
+    }
+    printf("First attempt: we were properly locked out.\nWaiting for lock...");
+    fflush(stdout);
+
+    if (apr_file_lock(file, APR_FLOCK_EXCLUSIVE) != APR_SUCCESS)
+        errmsg("Could not establish lock on test file.");
+    printf(" got it.\n");
+
+    (void) apr_file_close(file);
+    printf("Exiting.\n");
+}
+
+static void do_write(void)
+{
+    apr_file_t *file;
+    apr_status_t rv;
+
+    if (apr_file_open(&file, testfile, APR_WRITE|APR_CREATE, APR_OS_DEFAULT,
+                 pool) != APR_SUCCESS)
+        errmsg("Could not create file.\n");
+    printf("Test file created.\n");
+
+    if ((rv = apr_file_lock(file, APR_FLOCK_EXCLUSIVE)) != APR_SUCCESS)
+        errmsg2("Could not lock the file", rv);
+    printf("Lock created.\nSleeping...");
+    fflush(stdout);
+
+    apr_sleep(apr_time_from_sec(30));
+
+    (void) apr_file_close(file);
+    printf(" done.\nExiting.\n");
+}
+
+int main(int argc, const char * const *argv)
+{
+    int reader = 0;
+    apr_status_t status;
+    char optchar;
+    const char *optarg;
+    apr_getopt_t *opt;
+
+    if (apr_initialize() != APR_SUCCESS)
+        errmsg("Could not initialize APR.\n");
+    atexit(apr_terminate);
+
+    if (apr_pool_create(&pool, NULL) != APR_SUCCESS)
+        errmsg("Could not create global pool.\n");
+
+    if (apr_getopt_init(&opt, pool, argc, argv) != APR_SUCCESS)
+        errmsg("Could not parse options.\n");
+
+    while ((status = apr_getopt(opt, "rf:", &optchar, &optarg)) == APR_SUCCESS) {
+        if (optchar == 'r')
+            ++reader;
+        else if (optchar == 'f')
+            testfile = optarg;
+    }
+    if (status != APR_SUCCESS && status != APR_EOF) {
+        char msgbuf[80];
+
+        fprintf(stderr, "error: %s\n",
+                apr_strerror(status, msgbuf, sizeof msgbuf));
+        exit(1);
+    }
+
+    if (reader)
+        do_read();
+    else
+        do_write();
+
+    return 0;
+}