X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=lib%2Fmemcached_storage.c;h=d8b124325aafb4c08270f0cadae4f423aa85e8bc;hb=05a0de51880aa6ee2428a365ef5d6ad530f96454;hp=3df4913ad10fb23cb06d9b61a9c0ef4246bd3ec6;hpb=3efc2e6fb6a17e8eb52dbe3590a5dcb063b30537;p=awesomized%2Flibmemcached

diff --git a/lib/memcached_storage.c b/lib/memcached_storage.c
index 3df4913a..d8b12432 100644
--- a/lib/memcached_storage.c
+++ b/lib/memcached_storage.c
@@ -7,80 +7,293 @@
 
 */
 
-#include <memcached.h>
-
-static memcached_return memcached_send(memcached_st *ptr, 
-                                       char *key, size_t key_length, 
-                                       char *value, size_t value_length, 
-                                       time_t expiration,
-                                       uint16_t  flags,
-                                       char *verb)
+#include "common.h"
+#include "memcached_io.h"
+
+typedef enum {
+  SET_OP,
+  REPLACE_OP,
+  ADD_OP,
+  PREPEND_OP,
+  APPEND_OP,
+  CAS_OP,
+} memcached_storage_action;
+
+/* Inline this */
+static char *storage_op_string(memcached_storage_action verb)
 {
-  size_t send_length;
+  switch (verb)
+  {
+  case SET_OP:
+    return "set";
+  case REPLACE_OP:
+    return "replace";
+  case ADD_OP:
+    return "add";
+  case PREPEND_OP:
+    return "prepend";
+  case APPEND_OP:
+    return "append";
+  case CAS_OP:
+    return "cas";
+  };
+
+  return SET_OP;
+}
+
+static inline memcached_return memcached_send(memcached_st *ptr, 
+                                              char *master_key, size_t master_key_length, 
+                                              char *key, size_t key_length, 
+                                              char *value, size_t value_length, 
+                                              time_t expiration,
+                                              uint32_t flags,
+                                              uint64_t cas,
+                                              memcached_storage_action verb)
+{
+  char to_write;
+  size_t write_length;
+  ssize_t sent_length;
   memcached_return rc;
   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
   unsigned int server_key;
 
-  rc= memcached_connect(ptr);
+  WATCHPOINT_ASSERT(!(value == NULL && value_length > 0));
+  WATCHPOINT_ASSERT(!(value && value_length == 0));
 
-  if (rc != MEMCACHED_SUCCESS)
-    return rc;
+  if (key_length == 0)
+    return MEMCACHED_NO_KEY_PROVIDED;
 
-  server_key= memcached_generate_hash(key, key_length) % ptr->number_of_hosts;
+  if (ptr->number_of_hosts == 0)
+    return MEMCACHED_NO_SERVERS;
 
-  send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, 
-                        "%s %.*s %u %u %u\r\n", verb,
-                        key_length, key, flags, expiration, value_length);
-  if ((send(ptr->hosts[server_key].fd, buffer, send_length, 0) == -1))
-  {
-    fprintf(stderr, "failed set on %.*s TCP\n", key_length+1, key);
+  server_key= memcached_generate_hash(ptr, master_key, master_key_length);
+
+  if (cas)
+    write_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, 
+                           "%s %.*s %u %llu %zu %llu\r\n", storage_op_string(verb),
+                           (int)key_length, key, flags, 
+                           (unsigned long long)expiration, value_length, 
+                           (unsigned long long)cas);
+  else
+    write_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, 
+                           "%s %.*s %u %llu %zu\r\n", storage_op_string(verb),
+                           (int)key_length, key, flags, 
+                           (unsigned long long)expiration, value_length);
 
-    return MEMCACHED_WRITE_FAILURE;
+  if (write_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
+  {
+    rc= MEMCACHED_WRITE_FAILURE;
+    goto error;
   }
 
-  send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, 
-                        "%.*s\r\n", 
-                        value_length, value);
-  if ((send(ptr->hosts[server_key].fd, buffer, send_length, 0) == -1))
+  rc=  memcached_do(&ptr->hosts[server_key], buffer, write_length, 0);
+  if (rc != MEMCACHED_SUCCESS)
+    goto error;
+
+  if ((sent_length= memcached_io_write(&ptr->hosts[server_key], value, value_length, 0)) == -1)
   {
-    fprintf(stderr, "failed set on %.*s TCP\n", key_length+1, key);
+    rc= MEMCACHED_WRITE_FAILURE;
+    goto error;
+  }
+
+  if ((ptr->flags & MEM_BUFFER_REQUESTS) && verb == SET_OP)
+    to_write= 0;
+  else
+    to_write= 1;
 
-    return MEMCACHED_WRITE_FAILURE;
+  if ((sent_length= memcached_io_write(&ptr->hosts[server_key], "\r\n", 2, to_write)) == -1)
+  {
+    rc= MEMCACHED_WRITE_FAILURE;
+    goto error;
   }
-  
-  send_length= read(ptr->hosts[server_key].fd, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE);
 
-  if (send_length && buffer[0] == 'S')  /* STORED */
+  if (to_write == 0)
+    return MEMCACHED_BUFFERED;
+
+  rc= memcached_response(&ptr->hosts[server_key], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
+
+  if (rc == MEMCACHED_STORED)
     return MEMCACHED_SUCCESS;
-  else if (send_length && buffer[0] == 'N')  /* NOT_STORED */
-    return MEMCACHED_NOTSTORED;
-  else
-    return MEMCACHED_READ_FAILURE;
+  else 
+    return rc;
+
+error:
+  memcached_io_reset(&ptr->hosts[server_key]);
+
+  return rc;
 }
 
 memcached_return memcached_set(memcached_st *ptr, char *key, size_t key_length, 
                                char *value, size_t value_length, 
                                time_t expiration,
-                               uint16_t  flags)
+                               uint32_t flags)
 {
-  return  memcached_send(ptr, key, key_length, value, value_length,
-                         expiration, flags, "set");
+  memcached_return rc;
+  LIBMEMCACHED_MEMCACHED_SET_START();
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, SET_OP);
+  LIBMEMCACHED_MEMCACHED_SET_END();
+  return rc;
 }
 
-memcached_return memcached_add(memcached_st *ptr, char *key, size_t key_length,
+memcached_return memcached_add(memcached_st *ptr, 
+                               char *key, size_t key_length,
                                char *value, size_t value_length, 
                                time_t expiration,
-                               uint16_t  flags)
+                               uint32_t flags)
 {
-  return  memcached_send(ptr, key, key_length, value, value_length,
-                         expiration, flags, "add");
+  memcached_return rc;
+  LIBMEMCACHED_MEMCACHED_ADD_START();
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, ADD_OP);
+  LIBMEMCACHED_MEMCACHED_ADD_END();
+  return rc;
+}
+
+memcached_return memcached_replace(memcached_st *ptr, 
+                                   char *key, size_t key_length,
+                                   char *value, size_t value_length, 
+                                   time_t expiration,
+                                   uint32_t flags)
+{
+  memcached_return rc;
+  LIBMEMCACHED_MEMCACHED_REPLACE_START();
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, REPLACE_OP);
+  LIBMEMCACHED_MEMCACHED_REPLACE_END();
+  return rc;
 }
 
-memcached_return memcached_replace(memcached_st *ptr, char *key, size_t key_length,
+memcached_return memcached_prepend(memcached_st *ptr, 
+                                   char *key, size_t key_length,
                                    char *value, size_t value_length, 
                                    time_t expiration,
-                                   uint16_t  flags)
+                                   uint32_t flags)
+{
+  memcached_return rc;
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, PREPEND_OP);
+  return rc;
+}
+
+memcached_return memcached_append(memcached_st *ptr, 
+                                  char *key, size_t key_length,
+                                  char *value, size_t value_length, 
+                                  time_t expiration,
+                                  uint32_t flags)
+{
+  memcached_return rc;
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, APPEND_OP);
+  return rc;
+}
+
+memcached_return memcached_cas(memcached_st *ptr, 
+                               char *key, size_t key_length,
+                               char *value, size_t value_length, 
+                               time_t expiration,
+                               uint32_t flags,
+                               uint64_t cas)
+{
+  memcached_return rc;
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, cas, APPEND_OP);
+  return rc;
+}
+
+memcached_return memcached_set_by_key(memcached_st *ptr, 
+                                      char *master_key, size_t master_key_length, 
+                                      char *key, size_t key_length, 
+                                      char *value, size_t value_length, 
+                                      time_t expiration,
+                                      uint32_t flags)
+{
+  memcached_return rc;
+  LIBMEMCACHED_MEMCACHED_SET_START();
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, SET_OP);
+  LIBMEMCACHED_MEMCACHED_SET_END();
+  return rc;
+}
+
+memcached_return memcached_add_by_key(memcached_st *ptr, 
+                                      char *master_key, size_t master_key_length,
+                                      char *key, size_t key_length,
+                                      char *value, size_t value_length, 
+                                      time_t expiration,
+                                      uint32_t flags)
 {
-  return  memcached_send(ptr, key, key_length, value, value_length,
-                         expiration, flags, "replace");
+  memcached_return rc;
+  LIBMEMCACHED_MEMCACHED_ADD_START();
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, ADD_OP);
+  LIBMEMCACHED_MEMCACHED_ADD_END();
+  return rc;
+}
+
+memcached_return memcached_replace_by_key(memcached_st *ptr, 
+                                          char *master_key, size_t master_key_length,
+                                          char *key, size_t key_length,
+                                          char *value, size_t value_length, 
+                                          time_t expiration,
+                                          uint32_t flags)
+{
+  memcached_return rc;
+  LIBMEMCACHED_MEMCACHED_REPLACE_START();
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, REPLACE_OP);
+  LIBMEMCACHED_MEMCACHED_REPLACE_END();
+  return rc;
+}
+
+memcached_return memcached_prepend_by_key(memcached_st *ptr, 
+                                          char *master_key, size_t master_key_length,
+                                          char *key, size_t key_length,
+                                          char *value, size_t value_length, 
+                                          time_t expiration,
+                                          uint32_t flags)
+{
+  memcached_return rc;
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, PREPEND_OP);
+  return rc;
+}
+
+memcached_return memcached_append_by_key(memcached_st *ptr, 
+                                         char *master_key, size_t master_key_length,
+                                         char *key, size_t key_length,
+                                         char *value, size_t value_length, 
+                                         time_t expiration,
+                                         uint32_t flags)
+{
+  memcached_return rc;
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, 0, APPEND_OP);
+  return rc;
+}
+
+memcached_return memcached_cas_by_key(memcached_st *ptr, 
+                                      char *master_key, size_t master_key_length,
+                                      char *key, size_t key_length,
+                                      char *value, size_t value_length, 
+                                      time_t expiration,
+                                      uint32_t flags,
+                                      uint64_t cas)
+{
+  memcached_return rc;
+  rc= memcached_send(ptr, key, key_length, 
+                     key, key_length, value, value_length,
+                     expiration, flags, cas, APPEND_OP);
+  return rc;
 }