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/* -*- 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.
*/
#include <config.h>
#include "file.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
// For ntoh*
#include <netinet/in.h>
#include <stdlib.h>
File::File(char *fn, char* ext, Info *i)
{
char path[256];
info = i;
filename = new char[strlen(fn) + 1];
extension = new char[strlen(ext) + 1];
strcpy(filename, fn);
strcpy(extension, ext);
num = 0;
seqnum = 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);
delete filename;
delete extension;
}
int File::Open()
{
char fname[256];
if(fd) close(fd);
fd = -1;
while(fd == -1) {
if(seqnum) {
// A sequence number > 0
sprintf(fname, "%s%.3d-%d.%s", filename, num, seqnum, extension);
} else {
// A sequence number of 0
sprintf(fname, "%s%.3d.%s", filename, num, extension);
}
fd = open(fname, O_CREAT | O_WRONLY | O_ASYNC | O_EXCL, //| O_LARGEFILE
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if(fd == -1) num ++;
// If more than 1000 files are created in one day, something is terribly wrong!
if(num > 1000) {
info->error("Something is wrong with the path [%s]!", fname);
exit(1);
}
}
seqnum ++;
info->info("Output file: %s", fname);
return 0;
}
int File::Write(void* data, int size)
{
int w;
w = write(fd, data, size);
if(w != size) {
info->info("Wrapping file.");
Open();
w = write(fd, data, size);
if(w != size) {
info->error("Out of diskspace!");
return -1;
}
}
return w;
}
int File::Write(char* data, int size)
{
return Write((void*)data, size);
}
int File::Write(unsigned long long int val)
{
int res;
int written = 0;
unsigned long int *h_u = (unsigned long int *)&val;
unsigned long int *h_l = (unsigned long int *)(((char*)&val) + sizeof(unsigned long int));
*h_u = htonl(*h_u);
*h_l = htonl(*h_l);
if((res = Write((void*)h_l, sizeof(*h_l))) < 0) {
return res;
}
written += res;
if((res = Write((void*)h_u, sizeof(*h_u))) < 0) {
return res;
}
written += res;
return written;
}
int File::Write(long long int val)
{
int res;
int written = 0;
unsigned long int *h_u = (unsigned long int *)&val;
unsigned long int *h_l = (unsigned long int *)(((char*)&val) + sizeof(unsigned long int));
*h_u = htonl(*h_u);
*h_l = htonl(*h_l);
if((res = Write((void*)h_l, sizeof(*h_l))) < 0) {
return res;
}
written += res;
if((res = Write((void*)h_u, sizeof(*h_u))) < 0) {
return res;
}
written += res;
return written;
}
int File::Write(long int val)
{
val = htonl(val);
return Write((char*)&val, sizeof(val));
}
int File::Write(unsigned long int val)
{
val = htonl(val);
return Write((char*)&val, sizeof(val));
}
int File::Write(int val)
{
val = htonl(val);
return Write((char*)&val, sizeof(val));
}
int File::Write(unsigned int val)
{
val = htonl(val);
return Write((char*)&val, sizeof(val));
}
int File::Write(short int val)
{
val = htons(val);
return Write((char*)&val, sizeof(val));
}
int File::Write(unsigned short int val)
{
val = htons(val);
return Write((char*)&val, sizeof(val));
}
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';
if(strlen(subpath) > 0) createPath(subpath);
info->info("Checking and/or generating directory: %s", path);
// 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);
// TODO: Check for creation errors!
free(subpath);
return 0;
}
#ifdef __TEST_FILE
#include "info_simple.h"
int main(int argc, char *argv[]) {
if(argc < 3) {
fprintf(stderr, "usage:\n\ttest_file [filename] [extension]\n");
return 1;
}
InfoSimple info;
File file(argv[1], argv[2], &info);
unsigned int val = 0x01234567;
file.Write(val);
}
#endif/* __TEST_FILE*/
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