int xdlt_load_mmfile(char const *fname, mmfile_t *mf, int binmode) {
char cc;
int fd;
long size;
char *blk;
if (xdl_init_mmfile(mf, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) {
return -1;
}
if ((fd = open(fname, O_RDONLY)) == -1) {
perror(fname);
xdl_free_mmfile(mf);
return -1;
}
size = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_SET);
if (!(blk = (char *) xdl_mmfile_writeallocate(mf, size))) {
xdl_free_mmfile(mf);
close(fd);
return -1;
}
if (read(fd, blk, (size_t) size) != (size_t) size) {
perror(fname);
xdl_free_mmfile(mf);
close(fd);
return -1;
}
close(fd);
return 0;
}
long xdl_writem_mmfile(mmfile_t *mmf, mmbuffer_t *mb, int nbuf) {
int i;
long size;
char *data;
for (i = 0, size = 0; i < nbuf; i++)
size += mb[i].size;
if (!(data = (char *) xdl_mmfile_writeallocate(mmf, size)))
return -1;
for (i = 0; i < nbuf; i++) {
memcpy(data, mb[i].ptr, mb[i].size);
data += mb[i].size;
}
return size;
}
int xdlt_create_file(mmfile_t *mf, long size) {
long lnsize, csize;
char *data;
if (xdl_init_mmfile(mf, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) {
return -1;
}
if (!(data = xdl_mmfile_writeallocate(mf, size))) {
xdl_free_mmfile(mf);
return -1;
}
for (csize = 0; size - csize > XDLT_MAX_LINE_SIZE;) {
lnsize = xdlt_gen_line(data, XDLT_MAX_LINE_SIZE);
data += lnsize;
csize += lnsize;
}
if (csize < size)
xdlt_gen_line(data, -(size - csize));
return 0;
}
int xdl_mmfile_compact(mmfile_t *mmfo, mmfile_t *mmfc, long bsize, unsigned long flags) {
long fsize = xdl_mmfile_size(mmfo), size;
char *data;
char const *blk;
if (xdl_init_mmfile(mmfc, bsize, flags) < 0) {
return -1;
}
if (!(data = (char *) xdl_mmfile_writeallocate(mmfc, fsize))) {
xdl_free_mmfile(mmfc);
return -1;
}
if ((blk = (char const *) xdl_mmfile_first(mmfo, &size)) != NULL) {
do {
memcpy(data, blk, size);
data += size;
} while ((blk = (char const *) xdl_mmfile_next(mmfo, &size)) != NULL);
}
return 0;
}