X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fhosts.c;h=eafbb1b534ca083e76cb76fc75698403047549fe;hb=b048aacba5d279f3271163cfaa0704684beca1e2;hp=caff9add21182ed2eb8ce8fa3fe79f37d047ca01;hpb=2a34f4dcac48917e41a1b6aee37edbe886aa9f7b;p=awesomized%2Flibmemcached diff --git a/libmemcached/hosts.c b/libmemcached/hosts.c index caff9add..eafbb1b5 100644 --- a/libmemcached/hosts.c +++ b/libmemcached/hosts.c @@ -61,6 +61,7 @@ memcached_return_t run_distribution(memcached_st *ptr) 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: @@ -103,18 +104,11 @@ 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; @@ -124,15 +118,15 @@ static memcached_return_t update_continuum(memcached_st *ptr) 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->ketama.next_distribution_rebuild= 0; - 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].next_retry <= now.tv_sec) live_servers++; @@ -148,8 +142,8 @@ 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; @@ -168,20 +162,19 @@ static memcached_return_t update_continuum(memcached_st *ptr) ptr->ketama.continuum_count= live_servers + MEMCACHED_CONTINUUM_ADDITION; } + uint64_t total_weight= 0; 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) - { - list[host_index].weight = 1; - } if (! is_auto_ejecting || list[host_index].next_retry <= now.tv_sec) + { total_weight += list[host_index].weight; + } } } - 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; @@ -203,7 +196,7 @@ 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++) { @@ -232,14 +225,14 @@ 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); + 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); + 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; } @@ -247,7 +240,7 @@ static memcached_return_t update_continuum(memcached_st *ptr) } else { - for (pointer_index= 1; + for (uint32_t pointer_index= 1; pointer_index <= pointer_per_server / pointer_per_hash; pointer_index++) { @@ -281,14 +274,14 @@ 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); + 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); + 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; } @@ -305,7 +298,7 @@ static memcached_return_t update_continuum(memcached_st *ptr) 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); } @@ -451,20 +444,3 @@ 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); -}