forked from KolibriOS/kolibrios
108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
#ifndef __KOLIBRI_FILE_H_INCLUDED_
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#define __KOLIBRI_FILE_H_INCLUDED_
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#include "kolibri.h"
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#include "kos_heap.h"
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// Kolibri file interface.
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namespace Kolibri // All kolibri functions, types and data are nested in the (Kolibri) namespace.
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{
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struct FileDateTime{
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unsigned long int time;
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unsigned long int date;
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};
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struct FileInfoBlock
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{
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unsigned long int Function;
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unsigned long int Position;
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unsigned long int Flags;
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unsigned long int Count;
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char *Buffer;
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char *FileName1;
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char *FileName2;
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};
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struct FileInfoA
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{
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unsigned long int Attributes;
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unsigned long int Flags;
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FileDateTime DateCreate;
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FileDateTime DateAccess;
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FileDateTime DateModify;
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unsigned long int FileSizeLow;
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unsigned long int FileSizeHigh;
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char FileName[520];
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};
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// Functions.
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int _FileAccess(FileInfoBlock *file_access);
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FileInfoBlock* FileOpen(const char *name)
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{
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if (!name || !name[0]){
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//DebugPutString("name is 0");
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return 0;
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}
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FileInfoBlock* file = (FileInfoBlock*)Alloc(sizeof(FileInfoBlock)+sizeof(FileInfoA));
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if (!file){
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//DebugPutString("mem_Alloc -> 0");
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return 0;
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}
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file->Function = 5; //SSF_GET_INFO
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file->Position = 0;
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file->Flags = 0;
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file->Count = 0;
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file->Buffer = (char*)file+sizeof(FileInfoBlock);
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file->FileName1 = (char*)name;
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file->FileName2 = (char*)name;
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file->FileName1 = (char*)((long)file->FileName1 << 8);
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file->FileName2 = (char*)((long)file->FileName2 >> 24);
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_FileAccess(file);
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return file;
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}
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int FileClose(FileInfoBlock* file_data)
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{
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if (!file_data) return -1;
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Free(file_data);
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return 0;
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}
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unsigned long int FileRead(FileInfoBlock* file_data, void *mem, int size)
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{
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file_data->Function = 0; //SSF_READ_FILE
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file_data->Position = 0;
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file_data->Flags = 0;
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file_data->Count = size;
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file_data->Buffer = (char*)mem;
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if(!_FileAccess(file_data)) return file_data->Function;
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else return 0;
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}
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unsigned long int FileCreate(FileInfoBlock* file_data, void *mem, int size)
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{
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file_data->Function = 2; //SSF_CREATE_FILE
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file_data->Position = 0;
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file_data->Flags = 0;
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file_data->Count = size;
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file_data->Buffer = (char*)mem;
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if(!_FileAccess(file_data)) return file_data->Function;
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else return 0;
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}
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// Inline functions.
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inline unsigned long int FileGetLength(FileInfoBlock* file_data)
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{
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if (!file_data) return -1;
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return (unsigned long int)*(long*)((char*)file_data+sizeof(FileInfoBlock)+32);
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}
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}
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#endif // ndef __KOLIBRI_FILE_H_INCLUDED_
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