int archwriter_write_volheader(carchwriter *ai)
{
struct s_writebuf *wb=NULL;
cdico *voldico;
assert(ai);
if ((wb=writebuf_alloc())==NULL)
{ msgprintf(MSG_STACK, "writebuf_alloc() failed\n");
return -1;
}
if ((voldico=dico_alloc())==NULL)
{ msgprintf(MSG_STACK, "voldico=dico_alloc() failed\n");
return -1;
}
// prepare header
dico_add_u32(voldico, 0, VOLUMEHEADKEY_VOLNUM, ai->curvol);
dico_add_u32(voldico, 0, VOLUMEHEADKEY_ARCHID, ai->archid);
dico_add_string(voldico, 0, VOLUMEHEADKEY_FILEFORMATVER, FSA_FILEFORMAT);
dico_add_string(voldico, 0, VOLUMEHEADKEY_PROGVERCREAT, FSA_VERSION);
// write header to buffer
if (writebuf_add_header(wb, voldico, FSA_MAGIC_VOLH, ai->archid, FSA_FILESYSID_NULL)!=0)
{ errprintf("archio_write_header() failed\n");
return -1;
}
// write header to file
if (archwriter_write_buffer(ai, wb)!=0)
{ errprintf("archwriter_write_buffer() failed\n");
return -1;
}
dico_destroy(voldico);
writebuf_destroy(wb);
return 0;
}
int archwriter_write_volfooter(carchwriter *ai, bool lastvol)
{
struct s_writebuf *wb=NULL;
cdico *voldico;
assert(ai);
if ((wb=writebuf_alloc())==NULL)
{ errprintf("writebuf_alloc() failed\n");
return -1;
}
if ((voldico=dico_alloc())==NULL)
{ errprintf("voldico=dico_alloc() failed\n");
return -1;
}
// prepare header
dico_add_u32(voldico, 0, VOLUMEFOOTKEY_VOLNUM, ai->curvol);
dico_add_u32(voldico, 0, VOLUMEFOOTKEY_ARCHID, ai->archid);
dico_add_u32(voldico, 0, VOLUMEFOOTKEY_LASTVOL, lastvol);
// write header to buffer
if (writebuf_add_header(wb, voldico, FSA_MAGIC_VOLF, ai->archid, FSA_FILESYSID_NULL)!=0)
{ msgprintf(MSG_STACK, "archio_write_header() failed\n");
return -1;
}
// write header to file
if (archwriter_write_buffer(ai, wb)!=0)
{ msgprintf(MSG_STACK, "archwriter_write_data(size=%ld) failed\n", (long)wb->size);
return -1;
}
dico_destroy(voldico);
writebuf_destroy(wb);
return 0;
}
// add headers and datblock at the end of the queue
int regmulti_save_enqueue(cregmulti *m, cqueue *q, int fsid)
{
cblockinfo blkinfo;
char *dynblock;
u32 offset=0;
u64 filesize;
int i;
if (!m)
{ errprintf("invalid param\n");
return -1;
}
// don't do anything if block is empty
if (m->count==0)
return 0;
for (i=0; i < m->count; i++)
{
if (m->objhead[i]==NULL)
{ errprintf("error: objhead[%d]==NULL\n", i);
return -1;
}
// get file size from header
if (dico_get_u64(m->objhead[i], DICO_OBJ_SECTION_STDATTR, DISKITEMKEY_SIZE, &filesize)!=0)
{ errprintf("Cannot read filesize DISKITEMKEY_SIZE from archive\n");
return -1;
}
// the extraction function needs to know how many small-files are packed together
if (dico_add_u32(m->objhead[i], DICO_OBJ_SECTION_STDATTR, DISKITEMKEY_MULTIFILESCOUNT, (u32)m->count)!=0)
{ errprintf("dico_add_u32(DISKITEMKEY_MULTIFILESCOUNT) failed\n");
return -1;
}
// the extraction function needs to know where the data for this file are in the block
if (dico_add_u32(m->objhead[i], DICO_OBJ_SECTION_STDATTR, DISKITEMKEY_MULTIFILESOFFSET, (u32)offset)!=0)
{ errprintf("dico_add_u32(DISKITEMKEY_MULTIFILESCOUNT) failed\n");
return -1;
}
offset+=(u32)filesize;
if (queue_add_header(q, m->objhead[i], FSA_MAGIC_OBJT, fsid)!=0)
{ errprintf("queue_add_header() failed\n");
return -1;
}
}
// make a copy of the static block to dynamic memory
if ((dynblock=malloc(m->usedsize)) == NULL)
{ errprintf("malloc(%ld) failed: out of memory\n", (long)m->usedsize);
return -1;
}
memcpy(dynblock, m->data, m->usedsize);
memset(&blkinfo, 0, sizeof(blkinfo));
blkinfo.blkrealsize=m->usedsize;
blkinfo.blkdata=(char*)dynblock;
blkinfo.blkoffset=0; // no meaning for multi-regfiles
blkinfo.blkfsid=fsid;
if (queue_add_block(q, &blkinfo, QITEM_STATUS_TODO)!=0)
{ errprintf("queue_add_block() failed\n");
return -1;
}
return 0;
}