dpl_status_t
dpl_posix_stream_getmd(dpl_ctx_t *ctx,
dpl_stream_t *stream,
dpl_dict_t **metadatap,
dpl_sysmd_t **sysmdp)
{
dpl_dict_t *all_mds = NULL;
dpl_status_t ret = DPL_FAILURE;
DPL_TRACE(ctx, DPL_TRACE_BACKEND, "");
ret = dpl_posix_head_raw(ctx, stream->bucket, stream->locator,
NULL, NULL, DPL_FTYPE_REG, NULL,
&all_mds, NULL);
if (DPL_SUCCESS != ret)
goto end;
ret = dpl_posix_get_metadata_from_values(all_mds,
metadatap,
sysmdp ? *sysmdp : NULL);
if (DPL_SUCCESS != ret)
goto end;
ret = DPL_SUCCESS;
end:
if (all_mds)
dpl_dict_free(all_mds);
DPL_TRACE(ctx, DPL_TRACE_BACKEND, "ret=%d", ret);
return ret;
}
dpl_status_t
dpl_posix_head(dpl_ctx_t *ctx,
const char *bucket,
const char *resource,
const char *subresource,
const dpl_option_t *option,
dpl_ftype_t object_type,
const dpl_condition_t *condition,
dpl_dict_t **metadatap,
dpl_sysmd_t *sysmdp,
char **locationp)
{
dpl_status_t ret, ret2;
dpl_dict_t *all_mds = NULL;
char path[MAXPATHLEN];
DPL_TRACE(ctx, DPL_TRACE_BACKEND, "");
snprintf(path, sizeof (path), "/%s/%s",
ctx->base_path ? ctx->base_path : "",
resource ? resource : "");
ret2 = dpl_posix_head_raw(ctx, bucket, resource, subresource, option,
object_type, condition, &all_mds, locationp);
if (DPL_SUCCESS != ret2)
{
ret = ret2;
goto end;
}
ret2 = dpl_posix_get_metadata_from_values(all_mds, metadatap, sysmdp);
if (DPL_SUCCESS != ret2)
{
ret = ret2;
goto end;
}
ret = DPL_SUCCESS;
end:
if (NULL != all_mds)
dpl_dict_free(all_mds);
DPL_TRACE(ctx, DPL_TRACE_BACKEND, "ret=%d", ret);
return ret;
}
dpl_status_t
dpl_posix_get_buffered(dpl_ctx_t *ctx,
const char *bucket,
const char *resource,
const char *subresource,
const dpl_option_t *option,
dpl_ftype_t object_type,
const dpl_condition_t *condition,
const dpl_range_t *range,
dpl_metadatum_func_t metadatum_func,
dpl_dict_t **metadatap,
dpl_sysmd_t *sysmdp,
dpl_buffer_func_t buffer_func,
void *cb_arg,
char **locationp)
{
dpl_status_t ret, ret2;
char path[MAXPATHLEN];
int fd = -1;
int iret;
char buf[8192];
ssize_t cc;
dpl_dict_t *all_mds = NULL;
struct get_conven gc;
DPL_TRACE(ctx, DPL_TRACE_BACKEND, "");
memset(&gc, 0, sizeof (gc));
gc.metadata = dpl_dict_new(13);
if (NULL == gc.metadata)
{
ret = DPL_ENOMEM;
goto end;
}
gc.sysmdp = sysmdp;
gc.metadatum_func = metadatum_func;
gc.buffer_func = buffer_func;
gc.cb_arg = cb_arg;
snprintf(path, sizeof (path), "/%s/%s", ctx->base_path ? ctx->base_path : "", resource);
switch (object_type)
{
case DPL_FTYPE_UNDEF:
case DPL_FTYPE_CAP:
case DPL_FTYPE_DOM:
case DPL_FTYPE_DIR:
case DPL_FTYPE_CHRDEV:
case DPL_FTYPE_BLKDEV:
case DPL_FTYPE_FIFO:
case DPL_FTYPE_SOCKET:
case DPL_FTYPE_SYMLINK:
ret = DPL_EINVAL;
goto end;
case DPL_FTYPE_ANY:
case DPL_FTYPE_REG:
fd = open(path, O_RDONLY);
if (-1 == fd)
{
perror("open");
ret = DPL_FAILURE;
goto end;
}
break ;
}
if (range)
{
iret = lseek(fd, range->start, SEEK_SET);
if (-1 == iret)
{
perror("lseek");
ret = DPL_FAILURE;
goto end;
}
}
ret2 = dpl_posix_head_raw(ctx, bucket, resource, subresource, option,
object_type, condition, &all_mds, locationp);
if (DPL_SUCCESS != ret2)
{
ret = ret2;
goto end;
}
ret2 = dpl_dict_iterate(all_mds, cb_get_value, &gc);
if (DPL_SUCCESS != ret2)
{
ret = ret2;
goto end;
}
while (1)
{
cc = read(fd, buf, sizeof (buf));
if (-1 == cc)
{
perror("read");
ret = DPL_FAILURE;
goto end;
}
ret2 = cb_get_buffer(&gc, buf, cc);
if (DPL_SUCCESS != ret2)
{
ret = ret2;
goto end;
}
if (0 == cc)
break ;
}
if (NULL != metadatap)
{
*metadatap = gc.metadata;
gc.metadata = NULL;
}
ret = DPL_SUCCESS;
end:
if (NULL != all_mds)
dpl_dict_free(all_mds);
if (NULL != gc.metadata)
dpl_dict_free(gc.metadata);
if (-1 == fd)
close(fd);
DPL_TRACE(ctx, DPL_TRACE_BACKEND, "ret=%d", ret);
return ret;
}
