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#include "kernel.h"
#include "fd.h"
#include "fifo.h"
#include "kmalloc.h"
#include "ext2.h"
#include "log.h"
bool fd_write(fd* f,uint8_t c)
{
return f->write(f->data,c);
}
uint8_t fd_read(fd* f)
{
return f->read(f->data);
}
bool fd_has(fd* f)
{
return f->has(f->data);
}
bool fd_close(fd* f)
{
return f->close(f->data);
}
fd fd_from_fifo(fifo* fif)
{
fd f;
f.type=FD_TYPE_FIFO_BUFFERED;
f.data=fif;
f.read=fifo_get;
f.write=fifo_put;
// f.close=fd_close;
f.has=fifo_has;
return f;
}
//----
void* ext2_init(char *path)
{
uint32_t *data=kballoc(1);
uint32_t inode= ext2_filename_to_inode(VMEM_EXT2_RAMIMAGE,path);
data[0]=inode;// pos
data[1]=0; //pos
return data;
}
void ext2_write(void* x)
{
kpanic("not impl");
}
uint8_t ext2_read(uint32_t* data)
{
char c;
ext2_read_inode(VMEM_EXT2_RAMIMAGE,data[0],&c,&data[1],1);
return c;
}
bool ext2_has(uint32_t* data)
{
uint32_t save=data[1];
uint32_t c=ext2_read_inode(VMEM_EXT2_RAMIMAGE,data[0],&c,&data[1],1);
data[1]=save;
return (c>0);
}
void ext2_close(void* x)
{
kbfree(x);
}
fd fd_from_path(char* path)
{
fd f;
f.type=FD_TYPE_EXT2_FILE;
f.data=ext2_init(path);
f.read=ext2_read;
f.write=ext2_write;
f.close=ext2_close;
f.has=ext2_has;
return f;
}
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