X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fversion.c;h=82de87d362240666b2134ee50b802c56b7e99952;hb=b048aacba5d279f3271163cfaa0704684beca1e2;hp=db2419cfab3ef927a38e130348d6ab598bfe906b;hpb=7c7750f02368b570353ea109f23a0ea26d226e02;p=awesomized%2Flibmemcached

diff --git a/libmemcached/version.c b/libmemcached/version.c
index db2419cf..82de87d3 100644
--- a/libmemcached/version.c
+++ b/libmemcached/version.c
@@ -13,38 +13,49 @@ memcached_return_t memcached_version(memcached_st *ptr)
   if (ptr->flags.use_udp)
     return MEMCACHED_NOT_SUPPORTED;
 
+  memcached_return_t rc;
+
   if (ptr->flags.binary_protocol)
-    return memcached_version_binary(ptr);
+    rc= memcached_version_binary(ptr);
   else
-    return memcached_version_textual(ptr);      
+    rc= memcached_version_textual(ptr);      
+
+  return rc;
 }
 
 static inline memcached_return_t memcached_version_textual(memcached_st *ptr)
 {
-  unsigned int x;
   size_t send_length;
   memcached_return_t rc;
   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
   char *response_ptr;
   const char *command= "version\r\n";
 
-  send_length= strlen(command);
+  send_length= sizeof("version\r\n") -1;
 
   rc= MEMCACHED_SUCCESS;
-  for (x= 0; x < ptr->number_of_hosts; x++)
+  for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
   {
     memcached_return_t rrc;
+    memcached_server_write_instance_st instance=
+      memcached_server_instance_fetch(ptr, x);
+
+    // Optimization, we only fetch version once.
+    if (instance->major_version != UINT8_MAX)
+      continue;
 
-    rrc= memcached_do(&ptr->hosts[x], command, send_length, 1);
+    rrc= memcached_do(instance, command, send_length, true);
     if (rrc != MEMCACHED_SUCCESS)
     {
+      instance->major_version= instance->minor_version= instance->micro_version= UINT8_MAX;
       rc= MEMCACHED_SOME_ERRORS;
       continue;
     }
 
-    rrc= memcached_response(&ptr->hosts[x], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
+    rrc= memcached_response(instance, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
     if (rrc != MEMCACHED_SUCCESS)
     {
+      instance->major_version= instance->minor_version= instance->micro_version= UINT8_MAX;
       rc= MEMCACHED_SOME_ERRORS;
       continue;
     }
@@ -53,13 +64,34 @@ static inline memcached_return_t memcached_version_textual(memcached_st *ptr)
     response_ptr= index(buffer, ' ');
     response_ptr++;
 
-    ptr->hosts[x].major_version= (uint8_t)strtol(response_ptr, (char **)NULL, 10);
+    instance->major_version= (uint8_t)strtol(response_ptr, (char **)NULL, 10);
+    if (errno == ERANGE)
+    {
+      instance->major_version= instance->minor_version= instance->micro_version= UINT8_MAX;
+      rc= MEMCACHED_SOME_ERRORS;
+      continue;
+    }
+
     response_ptr= index(response_ptr, '.');
     response_ptr++;
-    ptr->hosts[x].minor_version= (uint8_t)strtol(response_ptr, (char **)NULL, 10);
+
+    instance->minor_version= (uint8_t)strtol(response_ptr, (char **)NULL, 10);
+    if (errno == ERANGE)
+    {
+      instance->major_version= instance->minor_version= instance->micro_version= UINT8_MAX;
+      rc= MEMCACHED_SOME_ERRORS;
+      continue;
+    }
+
     response_ptr= index(response_ptr, '.');
     response_ptr++;
-    ptr->hosts[x].micro_version= (uint8_t)strtol(response_ptr, (char **)NULL, 10);
+    instance->micro_version= (uint8_t)strtol(response_ptr, (char **)NULL, 10);
+    if (errno == ERANGE)
+    {
+      instance->major_version= instance->minor_version= instance->micro_version= UINT8_MAX;
+      rc= MEMCACHED_SOME_ERRORS;
+      continue;
+    }
   }
 
   return rc;
@@ -68,45 +100,79 @@ static inline memcached_return_t memcached_version_textual(memcached_st *ptr)
 static inline memcached_return_t memcached_version_binary(memcached_st *ptr)
 {
   memcached_return_t rc;
-  unsigned int x;
   protocol_binary_request_version request= { .bytes= {0}};
   request.message.header.request.magic= PROTOCOL_BINARY_REQ;
   request.message.header.request.opcode= PROTOCOL_BINARY_CMD_VERSION;
   request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
 
   rc= MEMCACHED_SUCCESS;
-  for (x= 0; x < ptr->number_of_hosts; x++) 
+  for (uint32_t x= 0; x < memcached_server_count(ptr); x++) 
   {
     memcached_return_t rrc;
 
-    rrc= memcached_do(&ptr->hosts[x], request.bytes, sizeof(request.bytes), 1);
+    memcached_server_write_instance_st instance=
+      memcached_server_instance_fetch(ptr, x);
+
+    if (instance->major_version != UINT8_MAX)
+      continue;
+
+    rrc= memcached_do(instance, request.bytes, sizeof(request.bytes), true);
     if (rrc != MEMCACHED_SUCCESS) 
     {
-      memcached_io_reset(&ptr->hosts[x]);
+      memcached_io_reset(instance);
       rc= MEMCACHED_SOME_ERRORS;
       continue;
     }
   }
 
-  for (x= 0; x < ptr->number_of_hosts; x++) 
-    if (memcached_server_response_count(&ptr->hosts[x]) > 0) 
+  for (uint32_t x= 0; x < memcached_server_count(ptr); x++) 
+  {
+    memcached_server_write_instance_st instance=
+      memcached_server_instance_fetch(ptr, x);
+
+    if (instance->major_version != UINT8_MAX)
+      continue;
+
+    if (memcached_server_response_count(instance) > 0) 
     {
       memcached_return_t rrc;
       char buffer[32];
       char *p;
 
-      rrc= memcached_response(&ptr->hosts[x], buffer, sizeof(buffer), NULL);
+      rrc= memcached_response(instance, buffer, sizeof(buffer), NULL);
       if (rrc != MEMCACHED_SUCCESS) 
       {
-        memcached_io_reset(&ptr->hosts[x]);
+        memcached_io_reset(instance);
+        rc= MEMCACHED_SOME_ERRORS;
+        continue;
+      }
+
+      instance->major_version= (uint8_t)strtol(buffer, &p, 10);
+      if (errno == ERANGE)
+      {
+        instance->major_version= instance->minor_version= instance->micro_version= UINT8_MAX;
+        rc= MEMCACHED_SOME_ERRORS;
+        continue;
+      }
+
+      instance->minor_version= (uint8_t)strtol(p + 1, &p, 10);
+      if (errno == ERANGE)
+      {
+        instance->major_version= instance->minor_version= instance->micro_version= UINT8_MAX;
+        rc= MEMCACHED_SOME_ERRORS;
+        continue;
+      }
+
+      instance->micro_version= (uint8_t)strtol(p + 1, NULL, 10);
+      if (errno == ERANGE)
+      {
+        instance->major_version= instance->minor_version= instance->micro_version= UINT8_MAX;
         rc= MEMCACHED_SOME_ERRORS;
         continue;
       }
 
-      ptr->hosts[x].major_version= (uint8_t)strtol(buffer, &p, 10);
-      ptr->hosts[x].minor_version= (uint8_t)strtol(p + 1, &p, 10);
-      ptr->hosts[x].micro_version= (uint8_t)strtol(p + 1, NULL, 10);
     }
+  }
 
   return rc;
 }