X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=lib%2Fmemcached_auto.c;h=0d0fc91797141d32a50b934613a921d970773a7a;hb=8a86b578acc594d37a8638e3e0afba1286c4b6ca;hp=86ee7669fbd1062fe1f84d037b96644988cc0cc4;hpb=1c5dea03fd77a12341688b41e8b63e1c358a2ad6;p=m6w6%2Flibmemcached diff --git a/lib/memcached_auto.c b/lib/memcached_auto.c index 86ee7669..0d0fc917 100644 --- a/lib/memcached_auto.c +++ b/lib/memcached_auto.c @@ -1,22 +1,26 @@ -#include +#include "common.h" static memcached_return memcached_auto(memcached_st *ptr, char *verb, char *key, size_t key_length, unsigned int offset, - unsigned int *value) + uint64_t *value) { - size_t send_length, sent_length; + size_t send_length; memcached_return rc; char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE]; unsigned int server_key; - rc= memcached_connect(ptr); + if (key_length == 0) + return MEMCACHED_NO_KEY_PROVIDED; - if (rc != MEMCACHED_SUCCESS) - return rc; + if (ptr->hosts == NULL || ptr->number_of_hosts == 0) + return MEMCACHED_NO_SERVERS; - server_key= memcached_generate_hash(key, key_length) % ptr->number_of_hosts; + if ((ptr->flags & MEM_VERIFY_KEY) && (memcachd_key_test(&key, &key_length, 1) == MEMCACHED_BAD_KEY_PROVIDED)) + return MEMCACHED_BAD_KEY_PROVIDED; + + server_key= memcached_generate_hash(ptr, key, key_length); send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, "%s %.*s %u\r\n", verb, @@ -24,27 +28,33 @@ static memcached_return memcached_auto(memcached_st *ptr, offset); if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE) return MEMCACHED_WRITE_FAILURE; - if ((sent_length= write(ptr->hosts[server_key].fd, buffer, send_length) == -1)) - return MEMCACHED_WRITE_FAILURE; - if (sent_length != send_length) - return MEMCACHED_WRITE_FAILURE; - memset(buffer, 0, MEMCACHED_DEFAULT_COMMAND_SIZE); - send_length= read(ptr->hosts[server_key].fd, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE); + rc= memcached_do(&ptr->hosts[server_key], buffer, send_length, 1); + if (rc != MEMCACHED_SUCCESS) + return rc; + + rc= memcached_response(&ptr->hosts[server_key], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL); - if (!memcmp(buffer, "ERROR\r\n", MEMCACHED_DEFAULT_COMMAND_SIZE)) + /* + So why recheck responce? Because the protocol is brain dead :) + The number returned might end up equaling one of the string + values. Less chance of a mistake with strncmp() so we will + use it. We still called memcached_response() though since it + worked its magic for non-blocking IO. + */ + if (!strncmp(buffer, "ERROR\r\n", 7)) { *value= 0; rc= MEMCACHED_PROTOCOL_ERROR; } - else if (!memcmp(buffer, "NOT_FOUND\r\n", MEMCACHED_DEFAULT_COMMAND_SIZE)) + else if (!strncmp(buffer, "NOT_FOUND\r\n", 11)) { *value= 0; rc= MEMCACHED_NOTFOUND; } else { - *value= strtol(buffer, (char **)NULL, 10); + *value= (uint64_t)strtoll(buffer, (char **)NULL, 10); rc= MEMCACHED_SUCCESS; } @@ -53,16 +63,28 @@ static memcached_return memcached_auto(memcached_st *ptr, memcached_return memcached_increment(memcached_st *ptr, char *key, size_t key_length, - unsigned int offset, - unsigned int *value) + uint32_t offset, + uint64_t *value) { - return memcached_auto(ptr, "incr", key, key_length, offset, value); + memcached_return rc; + + LIBMEMCACHED_MEMCACHED_INCREMENT_START(); + rc= memcached_auto(ptr, "incr", key, key_length, offset, value); + LIBMEMCACHED_MEMCACHED_INCREMENT_END(); + + return rc; } memcached_return memcached_decrement(memcached_st *ptr, char *key, size_t key_length, - unsigned int offset, - unsigned int *value) + uint32_t offset, + uint64_t *value) { - return memcached_auto(ptr, "decr", key, key_length, offset, value); + memcached_return rc; + + LIBMEMCACHED_MEMCACHED_DECREMENT_START(); + rc= memcached_auto(ptr, "decr", key, key_length, offset, value); + LIBMEMCACHED_MEMCACHED_DECREMENT_END(); + + return rc; }