1 files changed, 130 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/fsync.c b/nsprpub/pr/tests/fsync.c
new file mode 100644
index 0000000000..3e0fb175c1
--- /dev/null
+++ b/nsprpub/pr/tests/fsync.c
@@ -0,0 +1,130 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "prio.h"
+#include "prmem.h"
+#include "prprf.h"
+#include "prinrval.h"
+
+#include "plerror.h"
+#include "plgetopt.h"
+
+static PRFileDesc *err = NULL;
+
+static void Help(void)
+{
+    PR_fprintf(err, "Usage: [-S] [-K <n>] [-h] <filename>\n");
+    PR_fprintf(err, "\t-c   Nuber of iterations     (default: 10)\n");
+    PR_fprintf(err, "\t-S   Sync the file           (default: FALSE)\n");
+    PR_fprintf(err, "\t-K   Size of file (K bytes)  (default: 10)\n");
+    PR_fprintf(err, "\t     Name of file to write   (default: ./tmp-sync.dat)\n");
+    PR_fprintf(err, "\t-h   This message and nothing else\n");
+}  /* Help */
+
+int main(int argc, char **argv)
+{
+    PRStatus rv;
+    PLOptStatus os;
+    PRUint8 *buffer;
+    PRFileDesc *file = NULL;
+    const char *filename = "sync.dat";
+    PRUint32 index, loops, iterations = 10, filesize = 10;
+    PRIntn flags = PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE;
+    PLOptState *opt = PL_CreateOptState(argc, argv, "hSK:c:");
+    PRIntervalTime time, total = 0, shortest = 0x7fffffff, longest = 0;
+
+    err = PR_GetSpecialFD(PR_StandardError);
+
+    while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
+    {
+        if (PL_OPT_BAD == os) {
+            continue;
+        }
+        switch (opt->option)
+        {
+            case 0:       /* Name of file to create */
+                filename = opt->value;
+                break;
+            case 'S':       /* Use sych option on file */
+                flags |= PR_SYNC;
+                break;
+            case 'K':       /* Size of file to write */
+                filesize = atoi(opt->value);
+                break;
+            case 'c':       /* Number of iterations */
+                iterations = atoi(opt->value);
+                break;
+            case 'h':       /* user wants some guidance */
+            default:        /* user needs some guidance */
+                Help();     /* so give him an earful */
+                return 2;   /* but not a lot else */
+        }
+    }
+    PL_DestroyOptState(opt);
+
+    file = PR_Open(filename, flags, 0666);
+    if (NULL == file)
+    {
+        PL_FPrintError(err, "Failed to open file");
+        return 1;
+    }
+
+    buffer = (PRUint8*)PR_CALLOC(1024);
+    if (NULL == buffer)
+    {
+        PL_FPrintError(err, "Cannot allocate buffer");
+        return 1;
+    }
+
+    for (index = 0; index < sizeof(buffer); ++index) {
+        buffer[index] = (PRUint8)index;
+    }
+
+    for (loops = 0; loops < iterations; ++loops)
+    {
+        time = PR_IntervalNow();
+        for (index = 0; index < filesize; ++index)
+        {
+            PR_Write(file, buffer, 1024);
+        }
+        time = (PR_IntervalNow() - time);
+
+        total += time;
+        if (time < shortest) {
+            shortest = time;
+        }
+        else if (time > longest) {
+            longest = time;
+        }
+        if (0 != PR_Seek(file, 0, PR_SEEK_SET))
+        {
+            PL_FPrintError(err, "Rewinding file");
+            return 1;
+        }
+    }
+
+    total = total / iterations;
+    PR_fprintf(
+        err, "%u iterations over a %u kbyte %sfile: %u [%u] %u\n",
+        iterations, filesize, ((flags & PR_SYNC) ? "SYNCH'd " : ""),
+        PR_IntervalToMicroseconds(shortest),
+        PR_IntervalToMicroseconds(total),
+        PR_IntervalToMicroseconds(longest));
+
+    PR_DELETE(buffer);
+    rv = PR_Close(file);
+    if (PR_SUCCESS != rv)
+    {
+        PL_FPrintError(err, "Closing file failed");
+        return 1;
+    }
+    rv = PR_Delete(filename);
+    if (PR_SUCCESS != rv)
+    {
+        PL_FPrintError(err, "Deleting file failed");
+        return 1;
+    }
+    return 0;
+}