static int file_read_cached(const char *file_name, uint8_t **mem, uint32_t beg, uint32_t len, uint32_t socket, struct hash_set *hs)
{
if (len == 0) {
*mem = 0;
return 0;
}
uint8_t *data_mem;
/* Since the configuration can reference the same file from
multiple places, use prox_shared infrastructure to detect
this and return previously loaded data. */
char name[256];
snprintf(name, sizeof(name), "%u-%u:%s", beg, len, file_name);
*mem = prox_sh_find_socket(socket, name);
if (*mem)
return 0;
/* check if the file has been loaded on the other socket. */
if (socket == 1 && (data_mem = prox_sh_find_socket(0, name))) {
uint8_t *data_find = hash_set_find(hs, data_mem, len);
if (!data_find) {
data_find = prox_zmalloc(len, socket);
PROX_PANIC(data_find == NULL, "Failed to allocate memory (%u bytes) to hold header for peer\n", len);
rte_memcpy(data_find, data_mem, len);
hash_set_add(hs, data_find, len);
}
*mem = data_find;
prox_sh_add_socket(socket, name, *mem);
return 0;
}
/* It is possible that a file with a different name contains
the same data. In that case, search all loaded files and
compare the data to reduce memory utilization.*/
data_mem = malloc(len);
PROX_PANIC(data_mem == NULL, "Failed to allocate temporary memory to hold data\n");
if (file_read_content(file_name, data_mem, beg, len)) {
plog_err("%s\n", file_get_error());
return -1;
}
uint8_t *data_find = hash_set_find(hs, data_mem, len);
if (!data_find) {
data_find = prox_zmalloc(len, socket);
PROX_PANIC(data_find == NULL, "Failed to allocate memory (%u bytes) to hold header for peer\n", len);
rte_memcpy(data_find, data_mem, len);
hash_set_add(hs, data_find, len);
}
free(data_mem);
*mem = data_find;
prox_sh_add_socket(socket, name, *mem);
return 0;
}
bool add_graph_to_level(graph_info *new_graph, level *my_level)
{
unsigned i = new_graph->m - my_level->min_m;
if(priority_queue_num_elems(my_level->queues[i]) >= my_level->p &&
graph_compare_gt(new_graph,
priority_queue_peek(my_level->queues[i])))
return false;
if(!new_graph->gcan)
{
int m = (new_graph->n + WORDSIZE - 1) / WORDSIZE;
DEFAULTOPTIONS_GRAPH(options);
statsblk stats;
setword workspace[m * 50];
int lab[new_graph->n], ptn[new_graph->n], orbits[new_graph->n];
new_graph->gcan = malloc(new_graph->n * m * sizeof(setword));
options.getcanon = true;
nauty(new_graph->nauty_graph, lab, ptn, NULL, orbits,
&options, &stats, workspace, 50 * m, m, new_graph->n, new_graph->gcan);
}
if(!hash_set_add(my_level->sets[i], new_graph))
{
//this graph already exists
return false;
}
_add_graph_to_level(new_graph, my_level);
return true;
}
