X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fhosts.c;h=67ba6d19829ba466be2a6ac9c0545e8e66d1ef9d;hb=82b419129b70ae58c92b087a99ae1757743f54d5;hp=ec12c92f9813e048d9aacf887611945b7497f7ce;hpb=3c11b74c0aa013a6afd492d46a8e9c911e12b350;p=awesomized%2Flibmemcached diff --git a/libmemcached/hosts.c b/libmemcached/hosts.c index ec12c92f..67ba6d19 100644 --- a/libmemcached/hosts.c +++ b/libmemcached/hosts.c @@ -17,6 +17,7 @@ static memcached_return_t server_add(memcached_st *ptr, const char *hostname, in_port_t port, uint32_t weight, memcached_connection_t type); + static memcached_return_t update_continuum(memcached_st *ptr); static int compare_servers(const void *p1, const void *p2) @@ -58,7 +59,9 @@ memcached_return_t run_distribution(memcached_st *ptr) case MEMCACHED_DISTRIBUTION_CONSISTENT: case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA: case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY: + case MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED: return update_continuum(ptr); + case MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET: case MEMCACHED_DISTRIBUTION_MODULA: break; case MEMCACHED_DISTRIBUTION_RANDOM: @@ -101,43 +104,37 @@ static int continuum_item_cmp(const void *t1, const void *t2) static memcached_return_t update_continuum(memcached_st *ptr) { - uint32_t host_index; uint32_t continuum_index= 0; - uint32_t value; memcached_server_st *list; - uint32_t pointer_index; uint32_t pointer_counter= 0; uint32_t pointer_per_server= MEMCACHED_POINTS_PER_SERVER; uint32_t pointer_per_hash= 1; uint64_t total_weight= 0; - uint64_t is_ketama_weighted= 0; - uint64_t is_auto_ejecting= 0; - uint32_t points_per_server= 0; uint32_t live_servers= 0; struct timeval now; if (gettimeofday(&now, NULL) != 0) { - ptr->cached_errno = errno; + memcached_set_errno(ptr, errno, NULL); return MEMCACHED_ERRNO; } - list = memcached_server_list(ptr); + list= memcached_server_list(ptr); /* count live servers (those without a retry delay set) */ - is_auto_ejecting= _is_auto_eject_host(ptr); + bool is_auto_ejecting= _is_auto_eject_host(ptr); if (is_auto_ejecting) { live_servers= 0; - ptr->next_distribution_rebuild= 0; - for (host_index= 0; host_index < memcached_server_count(ptr); ++host_index) + ptr->ketama.next_distribution_rebuild= 0; + for (uint32_t host_index= 0; host_index < memcached_server_count(ptr); ++host_index) { if (list[host_index].next_retry <= now.tv_sec) live_servers++; else { - if (ptr->next_distribution_rebuild == 0 || list[host_index].next_retry < ptr->next_distribution_rebuild) - ptr->next_distribution_rebuild= list[host_index].next_retry; + if (ptr->ketama.next_distribution_rebuild == 0 || list[host_index].next_retry < ptr->ketama.next_distribution_rebuild) + ptr->ketama.next_distribution_rebuild= list[host_index].next_retry; } } } @@ -146,29 +143,29 @@ static memcached_return_t update_continuum(memcached_st *ptr) live_servers= memcached_server_count(ptr); } - is_ketama_weighted= memcached_behavior_get(ptr, MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED); - points_per_server= (uint32_t) (is_ketama_weighted ? MEMCACHED_POINTS_PER_SERVER_KETAMA : MEMCACHED_POINTS_PER_SERVER); + uint64_t is_ketama_weighted= memcached_behavior_get(ptr, MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED); + uint32_t points_per_server= (uint32_t) (is_ketama_weighted ? MEMCACHED_POINTS_PER_SERVER_KETAMA : MEMCACHED_POINTS_PER_SERVER); if (live_servers == 0) return MEMCACHED_SUCCESS; - if (live_servers > ptr->continuum_count) + if (live_servers > ptr->ketama.continuum_count) { memcached_continuum_item_st *new_ptr; - new_ptr= libmemcached_realloc(ptr, ptr->continuum, + new_ptr= libmemcached_realloc(ptr, ptr->ketama.continuum, sizeof(memcached_continuum_item_st) * (live_servers + MEMCACHED_CONTINUUM_ADDITION) * points_per_server); if (new_ptr == 0) return MEMCACHED_MEMORY_ALLOCATION_FAILURE; - ptr->continuum= new_ptr; - ptr->continuum_count= live_servers + MEMCACHED_CONTINUUM_ADDITION; + ptr->ketama.continuum= new_ptr; + ptr->ketama.continuum_count= live_servers + MEMCACHED_CONTINUUM_ADDITION; } if (is_ketama_weighted) { - for (host_index = 0; host_index < memcached_server_count(ptr); ++host_index) + for (uint32_t host_index = 0; host_index < memcached_server_count(ptr); ++host_index) { if (list[host_index].weight == 0) { @@ -179,7 +176,7 @@ static memcached_return_t update_continuum(memcached_st *ptr) } } - for (host_index= 0; host_index < memcached_server_count(ptr); ++host_index) + for (uint32_t host_index= 0; host_index < memcached_server_count(ptr); ++host_index) { if (is_auto_ejecting && list[host_index].next_retry > now.tv_sec) continue; @@ -201,7 +198,7 @@ static memcached_return_t update_continuum(memcached_st *ptr) if (ptr->distribution == MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY) { - for (pointer_index= 0; + for (uint32_t pointer_index= 0; pointer_index < pointer_per_server / pointer_per_hash; pointer_index++) { @@ -230,22 +227,22 @@ static memcached_return_t update_continuum(memcached_st *ptr) { for (uint32_t x= 0; x < pointer_per_hash; x++) { - value= ketama_server_hash(sort_host, (size_t)sort_host_length, x); - ptr->continuum[continuum_index].index= host_index; - ptr->continuum[continuum_index++].value= value; + uint32_t value= ketama_server_hash(sort_host, (size_t)sort_host_length, x); + ptr->ketama.continuum[continuum_index].index= host_index; + ptr->ketama.continuum[continuum_index++].value= value; } } else { - value= hashkit_digest(&ptr->distribution_hashkit, sort_host, (size_t)sort_host_length); - ptr->continuum[continuum_index].index= host_index; - ptr->continuum[continuum_index++].value= value; + uint32_t value= hashkit_digest(&ptr->distribution_hashkit, sort_host, (size_t)sort_host_length); + ptr->ketama.continuum[continuum_index].index= host_index; + ptr->ketama.continuum[continuum_index++].value= value; } } } else { - for (pointer_index= 1; + for (uint32_t pointer_index= 1; pointer_index <= pointer_per_server / pointer_per_hash; pointer_index++) { @@ -279,16 +276,16 @@ static memcached_return_t update_continuum(memcached_st *ptr) { for (uint32_t x = 0; x < pointer_per_hash; x++) { - value= ketama_server_hash(sort_host, (size_t)sort_host_length, x); - ptr->continuum[continuum_index].index= host_index; - ptr->continuum[continuum_index++].value= value; + uint32_t value= ketama_server_hash(sort_host, (size_t)sort_host_length, x); + ptr->ketama.continuum[continuum_index].index= host_index; + ptr->ketama.continuum[continuum_index++].value= value; } } else { - value= hashkit_digest(&ptr->distribution_hashkit, sort_host, (size_t)sort_host_length); - ptr->continuum[continuum_index].index= host_index; - ptr->continuum[continuum_index++].value= value; + uint32_t value= hashkit_digest(&ptr->distribution_hashkit, sort_host, (size_t)sort_host_length); + ptr->ketama.continuum[continuum_index].index= host_index; + ptr->ketama.continuum[continuum_index++].value= value; } } } @@ -299,11 +296,11 @@ static memcached_return_t update_continuum(memcached_st *ptr) WATCHPOINT_ASSERT(ptr); WATCHPOINT_ASSERT(ptr->continuum); WATCHPOINT_ASSERT(memcached_server_count(ptr) * MEMCACHED_POINTS_PER_SERVER <= MEMCACHED_CONTINUUM_SIZE); - ptr->continuum_points_counter= pointer_counter; - qsort(ptr->continuum, ptr->continuum_points_counter, sizeof(memcached_continuum_item_st), continuum_item_cmp); + ptr->ketama.continuum_points_counter= pointer_counter; + qsort(ptr->ketama.continuum, ptr->ketama.continuum_points_counter, sizeof(memcached_continuum_item_st), continuum_item_cmp); #ifdef DEBUG - for (pointer_index= 0; memcached_server_count(ptr) && pointer_index < ((live_servers * MEMCACHED_POINTS_PER_SERVER) - 1); pointer_index++) + for (uint32_t pointer_index= 0; memcached_server_count(ptr) && pointer_index < ((live_servers * MEMCACHED_POINTS_PER_SERVER) - 1); pointer_index++) { WATCHPOINT_ASSERT(ptr->continuum[pointer_index].value <= ptr->continuum[pointer_index + 1].value); } @@ -337,7 +334,9 @@ memcached_return_t memcached_server_push(memcached_st *ptr, const memcached_serv if ((ptr->flags.use_udp && list[x].type != MEMCACHED_CONNECTION_UDP) || ((list[x].type == MEMCACHED_CONNECTION_UDP) && ! (ptr->flags.use_udp)) ) + { return MEMCACHED_INVALID_HOST_PROTOCOL; + } WATCHPOINT_ASSERT(list[x].hostname[0] != 0); @@ -447,3 +446,20 @@ static memcached_return_t server_add(memcached_st *ptr, const char *hostname, return run_distribution(ptr); } + +memcached_return_t memcached_server_add_parsed(memcached_st *ptr, + const char *hostname, + size_t hostname_length, + in_port_t port, + uint32_t weight) +{ + char buffer[NI_MAXHOST]; + + memcpy(buffer, hostname, hostname_length); + buffer[hostname_length]= 0; + + return server_add(ptr, buffer, + port, + weight, + MEMCACHED_CONNECTION_TCP); +}