Updating for vector interface.

[m6w6/libmemcached] / libmemcached / auto.c

diff --git a/libmemcached/auto.c b/libmemcached/auto.c
index 4fde5827de73f4172b7094a48d1f42b794811c83..16e65b863a3ad85b4b987d8f596d0e2c3c4eeda4 100644 (file)
--- a/libmemcached/auto.c
+++ b/libmemcached/auto.c
@@ -11,7 +11,7 @@
 
 #include "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,
@@ -22,7 +22,7 @@ static memcached_return_t memcached_auto(memcached_st *ptr,
   memcached_return_t rc;
   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
   uint32_t server_key;
-  memcached_server_instance_st *instance;
+  memcached_server_write_instance_st instance;
   bool no_reply= ptr->flags.no_reply;
 
   unlikely (memcached_server_count(ptr) == 0)
@@ -31,7 +31,7 @@ static memcached_return_t memcached_auto(memcached_st *ptr,
   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,
@@ -43,7 +43,7 @@ static memcached_return_t memcached_auto(memcached_st *ptr,
   unlikely (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
     return MEMCACHED_WRITE_FAILURE;
 
-  rc= memcached_do(instance, buffer, send_length, 1);
+  rc= memcached_do(instance, buffer, send_length, true);
   if (no_reply || rc != MEMCACHED_SUCCESS)
     return rc;
 
@@ -56,7 +56,12 @@ 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;
@@ -83,13 +88,13 @@ static memcached_return_t binary_incr_decr(memcached_st *ptr, uint8_t cmd,
                                            uint64_t *value)
 {
   uint32_t server_key;
-  memcached_server_instance_st *instance;
+  memcached_server_write_instance_st instance;
   bool no_reply= ptr->flags.no_reply;
 
   unlikely (memcached_server_count(ptr) == 0)
     return MEMCACHED_NO_SERVERS;
 
-  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)
@@ -103,20 +108,26 @@ 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 + ptr->prefix_key_length));
   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 + ptr->prefix_key_length +  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(instance, request.bytes,
-                    sizeof(request.bytes), 0)!=MEMCACHED_SUCCESS) ||
-      (memcached_io_write(instance, key, key_length, 1) == -1))
+  struct __write_vector_st vector[]= 
+  {
+    { .length= ptr->prefix_key_length, .buffer= ptr->prefix_key },
+    { .length= key_length, .buffer= key }
+  }; 
+
+  memcached_return_t rc;
+  if (((rc= memcached_do(instance, request.bytes, sizeof(request.bytes), false)) != MEMCACHED_SUCCESS) ||
+      (memcached_io_writev(instance, vector, 2, true) == -1))
   {
     memcached_io_reset(instance);
-    return MEMCACHED_WRITE_FAILURE;
+    return (rc == MEMCACHED_SUCCESS) ? MEMCACHED_WRITE_FAILURE : rc;
   }
 
   if (no_reply)
@@ -160,7 +171,7 @@ 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();
@@ -180,12 +191,16 @@ memcached_return_t memcached_decrement_by_key(memcached_st *ptr,
 
   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();