From fca7f73ae889f5e74a3b31441f5b2d778ecbd2d4 Mon Sep 17 00:00:00 2001
From: deva <deva>
Date: Thu, 9 Jun 2005 17:54:00 +0000
Subject: New file object, that takes care of uniqueness and counts up number
 in filename, when grown too big.

---
 src/file.cc | 175 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 175 insertions(+)
 create mode 100644 src/file.cc

(limited to 'src/file.cc')

diff --git a/src/file.cc b/src/file.cc
new file mode 100644
index 0000000..ce06d67
--- /dev/null
+++ b/src/file.cc
@@ -0,0 +1,175 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            file.cc
+ *
+ *  Thu Jun  9 15:31:38 CEST 2005
+ *  Copyright  2005 Bent Bisballe
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of MIaV.
+ *
+ *  MIaV is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  MIaV is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with MIaV; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+
+/*
+ * $Id$
+ */
+
+/*
+ * $Log$
+ * Revision 1.1  2005/06/09 17:54:00  deva
+ * New file object, that takes care of uniqueness and counts up number in
+ * filename, when grown too big.
+ *
+ */
+
+#include <config.h>
+#include "file.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <stdio.h>
+
+#include <stdlib.h>
+
+
+File::File(char *fn, char* ext)
+{
+  char path[256];
+
+  filename = (char*)malloc(strlen(fn) + 1);
+  extension = (char*)malloc(strlen(ext) + 1);
+
+  strcpy(filename, fn);
+  strcpy(extension, ext);
+
+  num = 0;
+  fd = -1;
+  
+  int pos = (int)strrchr(filename, '/');
+  memset(path, 0, sizeof(path));
+
+  if(pos) { // pos is NULL, a file will be created in the current dir (Which is bad)
+    pos -= (int)filename; // Make pos relative to the beginning of the string
+    strncpy(path, filename, pos);
+    createPath(path);
+  }
+
+  Open();
+}
+
+File::~File()
+{
+  close(fd);
+
+  free(filename);
+  free(extension);
+}
+
+int File::Open()
+{
+  char fname[256];
+
+  if(fd) close(fd);
+  fd = -1;
+
+  while(fd == -1) {
+    sprintf(fname, "%s%.3d.%s", filename, num, extension);
+    fd = open(fname, O_CREAT | O_WRONLY | O_SYNC | O_EXCL, //| O_LARGEFILE
+              S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+    num ++;
+
+    // If more than 1000 files are created in one day, something is terribly wrong!
+    if(num > 1000) {
+      fprintf(stderr, "Something is wrong with tha path [%s]!\n", fname);
+      exit(1);
+    }
+
+  }
+  return 0;
+}
+
+int File::Write(void* data, int size)
+{
+  int w;
+
+  w = write(fd, data, size);
+
+  if(w != size) {
+    Open();
+    w = write(fd, data, size);
+    if(w != size) {
+      fprintf(stderr, "Out of diskspace!\n");
+      exit(1);
+    }
+  }
+
+  return w;
+}
+
+int File::createPath(char* path)
+{
+  //  struct stat stats;
+  char *subpath;
+
+  subpath = (char*)calloc(strlen(path) + 1, 1);
+
+  strcpy(subpath, path);
+
+  subpath[strrchr(subpath, '/') - subpath] = '\0';
+  
+  printf("%s\n", path);
+
+  if(strlen(subpath) > 0) createPath(subpath);
+
+  //  stat(path, &stats);
+  //if(!S_ISDIR(stats.st_mode) && S_ISREG(stats.st_mode)) 
+  mkdir(path, S_IRWXU | S_IRGRP | S_IXGRP | S_IXOTH | S_IROTH);
+
+  free(subpath);
+  
+  return 0;
+}
+
+
+#ifdef FILE_TEST // Test
+#define BLOCK_SIZE 1024*1024
+#define TIMES 4000
+int main()
+{
+  void *buf = malloc(BLOCK_SIZE);
+
+  double b = BLOCK_SIZE;
+  double t = TIMES;
+  
+  double gb = b / (1024 * 1024 * 1024);
+  gb *= t;
+
+  printf("Writing %f GB.\n", gb);
+
+  File file("/tmp/filetest/folder1/folder2/file", "ext");
+  for(int cnt = 0; cnt < TIMES; cnt++) {
+    file.Write(buf, BLOCK_SIZE);
+  }
+
+  printf("Done.\n");
+}
+#endif // Test
-- 
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