X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fmemcached_auto.c;h=a607ed66e23298881c2ee5bfd6d3ea429aafbb62;hb=2e9d4c316f5182ef4c1f4d4757965bf5aebdc5e1;hp=7122dc90096e6db4659dfc2120d0e32660e6085a;hpb=875200dc0c5668bba4f8a68b487f9d2f2a1eedb0;p=awesomized%2Flibmemcached diff --git a/lib/memcached_auto.c b/lib/memcached_auto.c index 7122dc90..a607ed66 100644 --- a/lib/memcached_auto.c +++ b/lib/memcached_auto.c @@ -1,47 +1,60 @@ -#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; memcached_return rc; char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE]; unsigned int server_key; - rc= memcached_connect(ptr); + unlikely (key_length == 0) + return MEMCACHED_NO_KEY_PROVIDED; - if (rc != MEMCACHED_SUCCESS) - return rc; + unlikely (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, (int)key_length, key, offset); - - if ((write(ptr->hosts[server_key].fd, buffer, send_length) == -1)) + unlikely (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE) 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; - if (!memcmp(buffer, "ERROR\r\n", MEMCACHED_DEFAULT_COMMAND_SIZE)) + rc= memcached_response(&ptr->hosts[server_key], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL); + + /* + 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; } @@ -50,16 +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; }