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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "ad_daos.h"
#include "gurt/hash.h"
#include <gurt/common.h>
static struct d_hash_table *coh_hash;
static struct d_hash_table *poh_hash;
enum {
DAOS_POOL,
DAOS_CONT,
};
static inline struct adio_daos_hdl *hdl_obj(d_list_t * rlink)
{
return container_of(rlink, struct adio_daos_hdl, entry);
}
static bool
key_cmp(struct d_hash_table *htable, d_list_t * rlink, const void *key, unsigned int ksize)
{
struct adio_daos_hdl *hdl = hdl_obj(rlink);
return (uuid_compare(hdl->uuid, key) == 0);
}
static void rec_addref(struct d_hash_table *htable, d_list_t * rlink)
{
hdl_obj(rlink)->ref++;
}
static bool rec_decref(struct d_hash_table *htable, d_list_t * rlink)
{
struct adio_daos_hdl *hdl = hdl_obj(rlink);
assert(hdl->ref > 0);
hdl->ref--;
return (hdl->ref == 0);
}
static void rec_free(struct d_hash_table *htable, d_list_t * rlink)
{
struct adio_daos_hdl *hdl = hdl_obj(rlink);
assert(d_hash_rec_unlinked(&hdl->entry));
assert(hdl->ref == 0);
if (hdl->type == DAOS_POOL)
daos_pool_disconnect(hdl->open_hdl, NULL);
else if (hdl->type == DAOS_CONT) {
dfs_umount(hdl->dfs);
daos_cont_close(hdl->open_hdl, NULL);
} else
assert(0);
ADIOI_Free(hdl);
}
static d_hash_table_ops_t hdl_hash_ops = {
.hop_key_cmp = key_cmp,
.hop_rec_addref = rec_addref,
.hop_rec_decref = rec_decref,
.hop_rec_free = rec_free
};
int adio_daos_hash_init(void)
{
int rc;
rc = d_hash_table_create(0, 16, NULL, &hdl_hash_ops, &poh_hash);
if (rc)
return rc;
return d_hash_table_create(0, 16, NULL, &hdl_hash_ops, &coh_hash);
}
void adio_daos_hash_finalize(void)
{
d_hash_table_destroy(coh_hash, true /* force */);
d_hash_table_destroy(poh_hash, true /* force */);
}
struct adio_daos_hdl *adio_daos_poh_lookup(const uuid_t uuid)
{
d_list_t *rlink;
rlink = d_hash_rec_find(poh_hash, uuid, sizeof(uuid_t));
if (rlink == NULL)
return NULL;
return hdl_obj(rlink);
}
void adio_daos_poh_release(struct adio_daos_hdl *hdl)
{
d_hash_rec_decref(poh_hash, &hdl->entry);
}
int adio_daos_poh_insert(uuid_t uuid, daos_handle_t poh, struct adio_daos_hdl **hdl)
{
struct adio_daos_hdl *phdl;
int rc;
phdl = (struct adio_daos_hdl *) ADIOI_Calloc(1, sizeof(struct adio_daos_hdl));
if (phdl == NULL)
return -1;
phdl->type = DAOS_POOL;
uuid_copy(phdl->uuid, uuid);
phdl->open_hdl.cookie = poh.cookie;
rc = d_hash_rec_insert(poh_hash, phdl->uuid, sizeof(uuid_t), &phdl->entry, true);
if (rc) {
PRINT_MSG(stderr, "Failed to add phdl to hashtable (%d)\n", rc);
goto free_hdl;
}
d_hash_rec_addref(poh_hash, &phdl->entry);
*hdl = phdl;
return 0;
free_hdl:
ADIOI_Free(phdl);
return rc;
}
int adio_daos_poh_lookup_connect(uuid_t uuid, struct adio_daos_hdl **hdl)
{
struct adio_daos_hdl *phdl;
int rc;
phdl = adio_daos_poh_lookup(uuid);
if (phdl != NULL) {
*hdl = phdl;
return 0;
}
phdl = (struct adio_daos_hdl *) ADIOI_Calloc(1, sizeof(struct adio_daos_hdl));
if (phdl == NULL)
return -1;
phdl->type = DAOS_POOL;
uuid_copy(phdl->uuid, uuid);
/** Get the SVCL and Server group from env variables. This is temp as those
* won't be needed later */
char *svcl_str = NULL;
char *group = NULL;
daos_pool_info_t pool_info;
d_rank_list_t *svcl = NULL;
svcl_str = getenv("DAOS_SVCL");
if (svcl_str != NULL) {
svcl = daos_rank_list_parse(svcl_str, ":");
if (svcl == NULL) {
PRINT_MSG(stderr, "Failed to parse SVC list env\n");
rc = -1;
goto free_hdl;
}
}
group = getenv("DAOS_GROUP");
rc = daos_pool_connect(uuid, group, svcl, DAOS_PC_RW, &phdl->open_hdl, &pool_info, NULL);
d_rank_list_free(svcl);
if (rc < 0) {
PRINT_MSG(stderr, "Failed to connect to pool (%d)\n", rc);
goto free_hdl;
}
rc = d_hash_rec_insert(poh_hash, phdl->uuid, sizeof(uuid_t), &phdl->entry, true);
if (rc) {
PRINT_MSG(stderr, "Failed to add phdl to hashtable (%d)\n", rc);
goto err_pool;
}
d_hash_rec_addref(poh_hash, &phdl->entry);
*hdl = phdl;
return 0;
err_pool:
daos_pool_disconnect(phdl->open_hdl, NULL);
free_hdl:
ADIOI_Free(phdl);
return rc;
}
struct adio_daos_hdl *adio_daos_coh_lookup(const uuid_t uuid)
{
d_list_t *rlink;
rlink = d_hash_rec_find(coh_hash, uuid, sizeof(uuid_t));
if (rlink == NULL)
return NULL;
return hdl_obj(rlink);
}
void adio_daos_coh_release(struct adio_daos_hdl *hdl)
{
d_hash_rec_decref(coh_hash, &hdl->entry);
}
int adio_daos_coh_insert(uuid_t uuid, daos_handle_t coh, struct adio_daos_hdl **hdl)
{
struct adio_daos_hdl *co_hdl;
int rc;
co_hdl = (struct adio_daos_hdl *) ADIOI_Calloc(1, sizeof(struct adio_daos_hdl));
if (co_hdl == NULL)
return -1;
co_hdl->type = DAOS_CONT;
uuid_copy(co_hdl->uuid, uuid);
co_hdl->open_hdl.cookie = coh.cookie;
rc = d_hash_rec_insert(coh_hash, co_hdl->uuid, sizeof(uuid_t), &co_hdl->entry, true);
if (rc) {
PRINT_MSG(stderr, "Failed to add co_hdl to hashtable (%d)\n", rc);
goto err_coh;
}
d_hash_rec_addref(coh_hash, &co_hdl->entry);
*hdl = co_hdl;
return 0;
err_coh:
ADIOI_Free(co_hdl);
return rc;
}
int
adio_daos_coh_lookup_create(daos_handle_t poh, uuid_t uuid, int amode,
bool create, struct adio_daos_hdl **hdl)
{
struct adio_daos_hdl *co_hdl;
int rc;
co_hdl = adio_daos_coh_lookup(uuid);
if (co_hdl != NULL) {
*hdl = co_hdl;
return 0;
}
co_hdl = (struct adio_daos_hdl *) ADIOI_Calloc(1, sizeof(struct adio_daos_hdl));
if (co_hdl == NULL)
return -1;
co_hdl->type = DAOS_CONT;
uuid_copy(co_hdl->uuid, uuid);
/* Try to open the DAOS container first (the parent directory) */
rc = daos_cont_open(poh, uuid, DAOS_COO_RW, &co_hdl->open_hdl, NULL, NULL);
/* If fails with NOEXIST we can create it then reopen if create mode */
if (rc == -DER_NONEXIST && create) {
rc = dfs_cont_create(poh, uuid, NULL, &co_hdl->open_hdl, &co_hdl->dfs);
/** if someone got there first, re-open*/
if (rc == EEXIST) {
rc = daos_cont_open(poh, uuid, DAOS_COO_RW, &co_hdl->open_hdl, NULL, NULL);
if (rc) {
PRINT_MSG(stderr, "Failed to create DFS container (%d)\n", rc);
goto free_coh;
}
rc = dfs_mount(poh, co_hdl->open_hdl, amode, &co_hdl->dfs);
if (rc) {
PRINT_MSG(stderr, "Failed to mount DFS namesapce (%d)\n", rc);
goto err_cont;
}
} else if (rc) {
PRINT_MSG(stderr, "Failed to create DFS container (%d)\n", rc);
goto free_coh;
}
} else if (rc == 0) {
/* Mount a DFS namespace on the container */
rc = dfs_mount(poh, co_hdl->open_hdl, amode, &co_hdl->dfs);
if (rc) {
PRINT_MSG(stderr, "Failed to mount DFS namespace (%d)\n", rc);
goto err_cont;
}
} else {
goto free_coh;
}
rc = d_hash_rec_insert(coh_hash, co_hdl->uuid, sizeof(uuid_t), &co_hdl->entry, true);
if (rc) {
PRINT_MSG(stderr, "Failed to add co_hdl to hashtable (%d)\n", rc);
goto err_dfs;
}
d_hash_rec_addref(coh_hash, &co_hdl->entry);
*hdl = co_hdl;
return 0;
err_dfs:
dfs_umount(co_hdl->dfs);
err_cont:
daos_cont_close(co_hdl->open_hdl, NULL);
free_coh:
ADIOI_Free(co_hdl);
return rc;
}
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