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#include <stdlib.h>
#include <string.h>
#include <ecp/core.h>
#include <ecp/dir/dir.h>
#include "dir_client.h"
static ecp_dir_result_t dir_result_f = NULL;
static int dir_list_create_items(ECPDirList *dir_list, uint16_t list_size) {
dir_list->items = malloc(list_size * sizeof(ECPDirItem));
if (dir_list->items == NULL) return ECP_ERR_ALLOC;
dir_list->size = list_size;
return ECP_OK;
}
static void dir_list_reset_items(ECPDirList *dir_list, uint16_t serial) {
dir_list->count = 0;
dir_list->serial = serial;
memset(dir_list->items, 0, dir_list->size * sizeof(ECPDirItem));
}
static int dir_handle_open(ECPConnection *conn, ECP2Buffer *b) {
int rv;
rv = ecp_dir_handle_open(conn, b);
if (rv) return rv;
conn->param = ecp_dir_list_create();
if (conn->param == NULL) return ECP_ERR_ALLOC;
return ECP_OK;
}
static void dir_handle_close(ECPConnection *conn) {
ecp_dir_list_destroy(conn->param);
}
static ssize_t dir_handle_msg(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype, unsigned char *msg, size_t msg_size, ECP2Buffer *b) {
ECPDirList *dir_list;
ECPDirList *dir_list_fin;
unsigned char count;
unsigned char region;
uint16_t serial;
ssize_t hdr_size;
unsigned char frag_cnt;
unsigned char frag_tot;
int is_first, is_last;
int i;
int rv;
dir_list_fin = NULL;
rv = ecp_msg_get_frag(mtype, msg, &frag_cnt, &frag_tot, NULL);
if (rv) return rv;
hdr_size = ecp_dir_parse_msg(msg, msg_size, &count, ®ion, &serial);
if (hdr_size < 0) return hdr_size;
dir_list = ecp_conn_get_param(conn);
rv = ecp_frag_start(conn, seq, frag_cnt, frag_tot, &is_first, &is_last);
if (rv) goto handle_dir_msg_fin;
if (is_first) {
if (dir_list->items == NULL) {
rv = dir_list_create_items(dir_list, frag_tot * ECP_MAX_DIR_ITEM_IN_MSG);
if (rv) goto handle_dir_msg_fin;
}
dir_list_reset_items(dir_list, serial);
}
if ((dir_list->items == NULL) ||
(serial != dir_list->serial) ||
(dir_list->size < (ECP_MAX_DIR_ITEM_IN_MSG * (frag_cnt + 1)))) {
rv = ECP_ERR;
goto handle_dir_msg_fin;
}
msg += hdr_size;
dir_list->count += count;
for (i=0; i<count; i++) {
msg += ecp_dir_parse_item(&dir_list->items[ECP_MAX_DIR_ITEM_IN_MSG * frag_cnt + i], msg);
}
if (is_last) {
dir_list_fin = ecp_dir_list_copy(dir_list);
if (dir_list_fin == NULL) {
rv = ECP_ERR_ALLOC;
goto handle_dir_msg_fin;
}
dir_list->items = NULL;
}
handle_dir_msg_fin:
ecp_frag_end(conn, seq, frag_cnt, rv);
if (rv || is_last) {
if (dir_result_f) dir_result_f(dir_list_fin, rv);
ecp_conn_close(conn);
}
if (rv) return rv;
return msg_size;
}
static void dir_handle_err(ECPConnection *conn, unsigned char mtype, int err) {
if (dir_result_f) dir_result_f(NULL, err);
ecp_conn_close(conn);
}
ECPDirList *ecp_dir_list_create(void) {
ECPDirList *dir_list;
dir_list = malloc(sizeof(ECPDirList));
if (dir_list == NULL) return NULL;
memset(dir_list, 0, sizeof(ECPDirList));
return dir_list;
}
void ecp_dir_list_destroy(ECPDirList *dir_list) {
if (dir_list->items) free(dir_list->items);
free(dir_list);
}
ECPDirList *ecp_dir_list_copy(ECPDirList *dir_list) {
ECPDirList *dir_list_copy;
dir_list_copy = malloc(sizeof(ECPDirList));
if (dir_list_copy == NULL) return NULL;
*dir_list_copy = *dir_list;
return dir_list_copy;
}
int ecp_dir_set_handler(ECPContext *ctx, ECPConnHandler *handler, ecp_dir_result_t dir_result) {
int rv;
dir_result_f = dir_result;
ecp_conn_handler_init(handler, dir_handle_open, dir_handle_close, dir_handle_msg, dir_handle_err);
rv = ecp_ctx_set_handler(ctx, ECP_CTYPE_DIR, handler);
return rv;
}
int ecp_dir_get(ECPConnection *conn, ECPSocket *sock, ECPNode *node, unsigned char region) {
int rv;
ecp_dir_conn_init(conn, sock);
rv = ecp_dir_request(conn, node, region);
return rv;
}
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