97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
/* C wrappers around some zfs calls and C in general that should simplify
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* using libzfs from go language, make go code shorter and more readable.
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*/
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#include <libzfs.h>
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#include <memory.h>
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#include <string.h>
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#include <stdio.h>
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#include "zpool.h"
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#include "zfs.h"
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dataset_list_t *create_dataset_list_item() {
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dataset_list_t *zlist = malloc(sizeof(dataset_list_t));
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memset(zlist, 0, sizeof(dataset_list_t));
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return zlist;
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}
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void dataset_list_close(dataset_list_t *list) {
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zfs_close(list->zh);
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free(list);
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}
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int dataset_list_callb(zfs_handle_t *dataset, void *data) {
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dataset_list_t **lroot = (dataset_list_t**)data;
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dataset_list_t *nroot = create_dataset_list_item();
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if ( !((*lroot)->zh) ) {
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(*lroot)->zh = dataset;
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} else {
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nroot->zh = dataset;
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nroot->pnext = (void*)*lroot;
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*lroot = nroot;
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}
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return 0;
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}
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int dataset_list_root(libzfs_handle_t *libzfs, dataset_list_t **first) {
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int err = 0;
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dataset_list_t *zlist = create_dataset_list_item();
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err = zfs_iter_root(libzfs, dataset_list_callb, &zlist);
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if ( zlist->zh ) {
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*first = zlist;
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} else {
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*first = 0;
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free(zlist);
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}
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return err;
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}
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dataset_list_t *dataset_next(dataset_list_t *dataset) {
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return dataset->pnext;
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}
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int dataset_list_children(zfs_handle_t *zfs, dataset_list_t **first) {
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int err = 0;
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dataset_list_t *zlist = create_dataset_list_item();
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err = zfs_iter_children(zfs, dataset_list_callb, &zlist);
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if ( zlist->zh ) {
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*first = zlist;
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} else {
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*first = 0;
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free(zlist);
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}
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return err;
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}
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int read_dataset_property(zfs_handle_t *zh, property_list_t *list, int prop) {
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int r = 0;
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zprop_source_t source;
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char statbuf[INT_MAX_VALUE];
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r = zfs_prop_get(zh, prop,
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list->value, INT_MAX_VALUE, &source, statbuf, INT_MAX_VALUE, 1);
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if (r == 0) {
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// strcpy(list->name, zpool_prop_to_name(prop));
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zprop_source_tostr(list->source, source);
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}
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list->property = (int)prop;
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return r;
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}
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int clear_last_error(libzfs_handle_t *hdl) {
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zfs_standard_error(hdl, EZFS_SUCCESS, "success");
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return 0;
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}
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char** alloc_strings(int size) {
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return malloc(size*sizeof(char*));
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}
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void strings_setat(char **a, int at, char *v) {
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a[at] = v;
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}
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