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#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include "lock.h"
#include "showmsg.h"
#define exists(filename) (!access(filename, F_OK))
// �������݃t�@�C���̕ی쏈��
// �i�������݂��I���܂ŁA���t�@�C����ۊǂ��Ă����j
// �V�����t�@�C���̏������݊J�n
FILE* lock_fopen (const char* filename, int *info) {
char newfile[512];
FILE *fp;
int no = 0;
// ���S�ȃt�@�C������i�蔲���j
do {
sprintf(newfile, "%s_%04d.tmp", filename, ++no);
} while((fp = fopen(newfile,"r")) && (fclose(fp), no < 9999));
*info = no;
return fopen(newfile,"w");
}
// ���t�@�C�����폜���V�t�@�C�������l�[��
int lock_fclose (FILE *fp, const char* filename, int *info) {
int ret = 1;
char newfile[512];
char oldfile[512];
if (fp != NULL) {
ret = fclose(fp);
sprintf(newfile, "%s_%04d.tmp", filename, *info);
sprintf(oldfile, "%s.bak", filename); // old backup file
if (exists(oldfile)) remove(oldfile); // remove backup file if it already exists
rename (filename, oldfile); // backup our older data instead of deleting it
// ���̃^�C�~���O�ŗ�����ƍň��B
if ((ret = rename(newfile,filename)) != 0) { // rename our temporary file to its correct name
sprintf(tmp_output,"%s - '"CL_WHITE"%s"CL_RESET"'\n", strerror(errno), newfile);
ShowError(tmp_output);
}
}
return ret;
}
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