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/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
#include <config.h>
#include <stdio.h>
#include <unistd.h>
#include <locale.h>
#include <errno.h>
#include <string.h>
#include <glib.h>
#include <gio/gfile.h>
#define BENCHMARK_UNIT_NAME "gvfs-big-file"
#include "benchmark-common.c"
#define FILE_SIZE 4096
#define BUFFER_SIZE 4096
#define ITERATIONS_NUM 65536
static gboolean
is_dir (GFile *file)
{
GFileInfo *info;
gboolean res;
info = g_file_query_info (file, G_FILE_ATTRIBUTE_STD_TYPE, 0, NULL, NULL);
res = info && g_file_info_get_file_type (info) == G_FILE_TYPE_DIRECTORY;
if (info)
g_object_unref (info);
return res;
}
static GFile *
create_file (GFile *base_dir)
{
GFile *scratch_file;
gchar *scratch_name;
GOutputStream *output_stream;
gint pid;
GError *error = NULL;
gchar buffer [BUFFER_SIZE];
gint i;
pid = getpid ();
scratch_name = g_strdup_printf ("gvfs-benchmark-scratch-%d", pid);
scratch_file = g_file_resolve_relative_path (base_dir, scratch_name);
g_free (scratch_name);
if (!scratch_file)
return NULL;
output_stream = G_OUTPUT_STREAM (g_file_replace (scratch_file, 0, FALSE, G_FILE_CREATE_FLAGS_NONE, NULL, &error));
if (!output_stream)
{
g_printerr ("Failed to create scratch file: %s\n", error->message);
g_object_unref (scratch_file);
return NULL;
}
memset (buffer, 0xaa, BUFFER_SIZE);
for (i = 0; i < FILE_SIZE; i += BUFFER_SIZE)
{
if (g_output_stream_write (output_stream, buffer, BUFFER_SIZE, NULL, &error) < BUFFER_SIZE)
{
g_printerr ("Failed to populate scratch file: %s\n", error->message);
g_output_stream_close (output_stream, NULL, NULL);
g_object_unref (output_stream);
g_object_unref (scratch_file);
return NULL;
}
}
g_output_stream_close (output_stream, NULL, NULL);
g_object_unref (output_stream);
return scratch_file;
}
static void
read_file (GFile *scratch_file)
{
GInputStream *input_stream;
GError *error = NULL;
gint i;
input_stream = (GInputStream *) g_file_read (scratch_file, NULL, &error);
if (!input_stream)
{
g_printerr ("Failed to open scratch file: %s\n", error->message);
return;
}
for (i = 0; i < FILE_SIZE; i += BUFFER_SIZE)
{
gchar buffer [BUFFER_SIZE];
gsize bytes_read;
if (!g_input_stream_read_all (input_stream, buffer, BUFFER_SIZE, &bytes_read, NULL, &error) ||
bytes_read < BUFFER_SIZE)
{
g_printerr ("Failed to read back scratch file: %s\n", error->message);
g_input_stream_close (input_stream, NULL, NULL);
g_object_unref (input_stream);
}
}
g_object_unref (input_stream);
}
static void
delete_file (GFile *scratch_file)
{
GError *error = NULL;
#if 0
/* Enable when GDaemonFile supports delete */
if (!g_file_delete (scratch_file, NULL, &error))
{
g_printerr ("Failed to delete scratch file: %s\n", error->message);
}
#endif
}
static gint
benchmark_run (gint argc, gchar *argv [])
{
GFile *base_dir;
GFile *scratch_file;
gint i;
setlocale (LC_ALL, "");
g_type_init ();
if (argc < 2)
{
g_printerr ("Usage: %s <scratch URI>\n", argv [0]);
return 1;
}
base_dir = g_file_new_for_commandline_arg (argv [1]);
if (!is_dir (base_dir))
{
g_printerr ("Scratch URI %s is not a directory\n", argv [1]);
g_object_unref (base_dir);
return 1;
}
for (i = 0; i < ITERATIONS_NUM; i++)
{
scratch_file = create_file (base_dir);
if (!scratch_file)
{
g_object_unref (base_dir);
return 1;
}
read_file (scratch_file);
delete_file (scratch_file);
g_object_unref (scratch_file);
}
g_object_unref (base_dir);
return 0;
}
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