X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fauto.c;h=7bd0cc12518c100521466635c4f85f3901e967df;hb=3dee67d04099cc5e2986ed94aa612f429f54d6fb;hp=5e3e026111ae42e39c5b74e868cc0450f4a3bca1;hpb=814d911f182e08fb4401df649270f5fff2e8ed4c;p=m6w6%2Flibmemcached

diff --git a/libmemcached/auto.c b/libmemcached/auto.c
index 5e3e0261..7bd0cc12 100644
--- a/libmemcached/auto.c
+++ b/libmemcached/auto.c
@@ -9,42 +9,44 @@
  *
  */
 
-#include "common.h"
+#include "libmemcached/common.h"
 
-static memcached_return_t memcached_auto(memcached_st *ptr,
+static memcached_return_t text_incr_decr(memcached_st *ptr,
                                          const char *verb,
                                          const char *master_key, size_t master_key_length,
                                          const char *key, size_t key_length,
                                          uint64_t offset,
                                          uint64_t *value)
 {
-  size_t send_length;
   memcached_return_t rc;
   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
-  unsigned int server_key;
+  uint32_t server_key;
+  memcached_server_write_instance_st instance;
   bool no_reply= ptr->flags.no_reply;
 
-  unlikely (ptr->hosts == NULL || memcached_server_count(ptr) == 0)
-    return MEMCACHED_NO_SERVERS;
+  if (memcached_server_count(ptr) == 0)
+    return memcached_set_error(ptr, MEMCACHED_NO_SERVERS, NULL);
 
   if (ptr->flags.verify_key && (memcached_key_test((const char **)&key, &key_length, 1) == MEMCACHED_BAD_KEY_PROVIDED))
     return MEMCACHED_BAD_KEY_PROVIDED;
 
-  server_key= memcached_generate_hash(ptr, master_key, master_key_length);
+  server_key= memcached_generate_hash_with_redistribution(ptr, master_key, master_key_length);
+  instance= memcached_server_instance_fetch(ptr, server_key);
 
-  send_length= (size_t)snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
-                                "%s %s%.*s %" PRIu64 "%s\r\n", verb,
-                                ptr->prefix_key,
-                                (int)key_length, key,
-                                offset, no_reply ? " noreply" : "");
-  unlikely (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
+  int send_length;
+  send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
+                        "%s %.*s%.*s %" PRIu64 "%s\r\n", verb,
+                        memcached_print_array(ptr->prefix_key),
+                        (int)key_length, key,
+                        offset, no_reply ? " noreply" : "");
+  if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE || send_length < 0)
     return MEMCACHED_WRITE_FAILURE;
 
-  rc= memcached_do(&ptr->hosts[server_key], buffer, send_length, 1);
+  rc= memcached_do(instance, buffer, (size_t)send_length, true);
   if (no_reply || rc != MEMCACHED_SUCCESS)
     return rc;
 
-  rc= memcached_response(&ptr->hosts[server_key], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
+  rc= memcached_response(instance, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
 
   /*
     So why recheck responce? Because the protocol is brain dead :)
@@ -53,7 +55,12 @@ static memcached_return_t memcached_auto(memcached_st *ptr,
     use it. We still called memcached_response() though since it
     worked its magic for non-blocking IO.
   */
-  if (!strncmp(buffer, "ERROR\r\n", 7))
+  if (! strncmp(buffer, "ERROR\r\n", 7))
+  {
+    *value= 0;
+    rc= MEMCACHED_PROTOCOL_ERROR;
+  }
+  else if (! strncmp(buffer, "CLIENT_ERROR\r\n", 14))
   {
     *value= 0;
     rc= MEMCACHED_PROTOCOL_ERROR;
@@ -79,13 +86,15 @@ static memcached_return_t binary_incr_decr(memcached_st *ptr, uint8_t cmd,
                                            uint32_t expiration,
                                            uint64_t *value)
 {
-  unsigned int server_key;
+  uint32_t server_key;
+  memcached_server_write_instance_st instance;
   bool no_reply= ptr->flags.no_reply;
 
-  unlikely (ptr->hosts == NULL || memcached_server_count(ptr) == 0)
-    return MEMCACHED_NO_SERVERS;
+  if (memcached_server_count(ptr) == 0)
+    return memcached_set_error(ptr, MEMCACHED_NO_SERVERS, NULL);
 
-  server_key= memcached_generate_hash(ptr, master_key, master_key_length);
+  server_key= memcached_generate_hash_with_redistribution(ptr, master_key, master_key_length);
+  instance= memcached_server_instance_fetch(ptr, server_key);
 
   if (no_reply)
   {
@@ -98,25 +107,31 @@ static memcached_return_t binary_incr_decr(memcached_st *ptr, uint8_t cmd,
 
   request.message.header.request.magic= PROTOCOL_BINARY_REQ;
   request.message.header.request.opcode= cmd;
-  request.message.header.request.keylen= htons((uint16_t) key_length);
+  request.message.header.request.keylen= htons((uint16_t)(key_length + memcached_array_size(ptr->prefix_key)));
   request.message.header.request.extlen= 20;
   request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
-  request.message.header.request.bodylen= htonl((uint32_t) (key_length + request.message.header.request.extlen));
+  request.message.header.request.bodylen= htonl((uint32_t)(key_length + memcached_array_size(ptr->prefix_key) +request.message.header.request.extlen));
   request.message.body.delta= htonll(offset);
   request.message.body.initial= htonll(initial);
   request.message.body.expiration= htonl((uint32_t) expiration);
 
-  if ((memcached_do(&ptr->hosts[server_key], request.bytes,
-                    sizeof(request.bytes), 0)!=MEMCACHED_SUCCESS) ||
-      (memcached_io_write(&ptr->hosts[server_key], key, key_length, 1) == -1))
+  struct libmemcached_io_vector_st vector[]=
   {
-    memcached_io_reset(&ptr->hosts[server_key]);
-    return MEMCACHED_WRITE_FAILURE;
+    { .length= sizeof(request.bytes), .buffer= request.bytes },
+    { .length= memcached_array_size(ptr->prefix_key), .buffer= ptr->prefix_key },
+    { .length= key_length, .buffer= key }
+  };
+
+  memcached_return_t rc;
+  if ((rc= memcached_vdo(instance, vector, 3, true)) != MEMCACHED_SUCCESS)
+  {
+    memcached_io_reset(instance);
+    return (rc == MEMCACHED_SUCCESS) ? MEMCACHED_WRITE_FAILURE : rc;
   }
 
   if (no_reply)
     return MEMCACHED_SUCCESS;
-  return memcached_response(&ptr->hosts[server_key], (char*)value, sizeof(*value), NULL);
+  return memcached_response(instance, (char*)value, sizeof(*value), NULL);
 }
 
 memcached_return_t memcached_increment(memcached_st *ptr,
@@ -124,6 +139,10 @@ memcached_return_t memcached_increment(memcached_st *ptr,
                                        uint32_t offset,
                                        uint64_t *value)
 {
+  uint64_t local_value;
+  if (! value)
+    value= &local_value;
+
   return memcached_increment_by_key(ptr, key, key_length, key, key_length, offset, value);
 }
 
@@ -132,6 +151,10 @@ memcached_return_t memcached_decrement(memcached_st *ptr,
                                        uint32_t offset,
                                        uint64_t *value)
 {
+  uint64_t local_value;
+  if (! value)
+    value= &local_value;
+
   return memcached_decrement_by_key(ptr, key, key_length, key, key_length, offset, value);
 }
 
@@ -145,6 +168,10 @@ memcached_return_t memcached_increment_by_key(memcached_st *ptr,
   unlikely (rc != MEMCACHED_SUCCESS)
     return rc;
 
+  uint64_t local_value;
+  if (! value)
+    value= &local_value;
+
   LIBMEMCACHED_MEMCACHED_INCREMENT_START();
   if (ptr->flags.binary_protocol)
   {
@@ -155,7 +182,7 @@ memcached_return_t memcached_increment_by_key(memcached_st *ptr,
   }
   else
   {
-     rc= memcached_auto(ptr, "incr", master_key, master_key_length, key, key_length, offset, value);
+     rc= text_incr_decr(ptr, "incr", master_key, master_key_length, key, key_length, offset, value);
   }
 
   LIBMEMCACHED_MEMCACHED_INCREMENT_END();
@@ -173,14 +200,22 @@ memcached_return_t memcached_decrement_by_key(memcached_st *ptr,
   unlikely (rc != MEMCACHED_SUCCESS)
     return rc;
 
+  uint64_t local_value;
+  if (! value)
+    value= &local_value;
+
   LIBMEMCACHED_MEMCACHED_DECREMENT_START();
   if (ptr->flags.binary_protocol)
+  {
     rc= binary_incr_decr(ptr, PROTOCOL_BINARY_CMD_DECREMENT,
                          master_key, master_key_length, key, key_length,
                          (uint64_t)offset, 0, MEMCACHED_EXPIRATION_NOT_ADD,
                          value);
+  }
   else
-    rc= memcached_auto(ptr, "decr", master_key, master_key_length, key, key_length, offset, value);
+  {
+    rc= text_incr_decr(ptr, "decr", master_key, master_key_length, key, key_length, offset, value);
+  }
 
   LIBMEMCACHED_MEMCACHED_DECREMENT_END();
 
@@ -195,6 +230,10 @@ memcached_return_t memcached_increment_with_initial(memcached_st *ptr,
                                                     time_t expiration,
                                                     uint64_t *value)
 {
+  uint64_t local_value;
+  if (! value)
+    value= &local_value;
+
   return memcached_increment_with_initial_by_key(ptr, key, key_length,
                                                  key, key_length,
                                                  offset, initial, expiration, value);
@@ -214,6 +253,10 @@ memcached_return_t memcached_increment_with_initial_by_key(memcached_st *ptr,
   unlikely (rc != MEMCACHED_SUCCESS)
     return rc;
 
+  uint64_t local_value;
+  if (! value)
+    value= &local_value;
+
   LIBMEMCACHED_MEMCACHED_INCREMENT_WITH_INITIAL_START();
   if (ptr->flags.binary_protocol)
     rc= binary_incr_decr(ptr, PROTOCOL_BINARY_CMD_INCREMENT,
@@ -236,6 +279,10 @@ memcached_return_t memcached_decrement_with_initial(memcached_st *ptr,
                                                     time_t expiration,
                                                     uint64_t *value)
 {
+  uint64_t local_value;
+  if (! value)
+    value= &local_value;
+
   return memcached_decrement_with_initial_by_key(ptr, key, key_length,
                                                  key, key_length,
                                                  offset, initial, expiration, value);
@@ -255,6 +302,10 @@ memcached_return_t memcached_decrement_with_initial_by_key(memcached_st *ptr,
   unlikely (rc != MEMCACHED_SUCCESS)
     return rc;
 
+  uint64_t local_value;
+  if (! value)
+    value= &local_value;
+
   LIBMEMCACHED_MEMCACHED_INCREMENT_WITH_INITIAL_START();
   if (ptr->flags.binary_protocol)
   {