From:  <brian@gir.local>
Date: Tue, 25 Sep 2007 06:13:26 +0000 (+0200)
Subject: Started to abstract out the stats calls.
X-Git-Tag: 0.2~6
X-Git-Url: https://git.m6w6.name/?a=commitdiff_plain;h=b8aaaefdcb0b10d22668da2b530b67f55ffa653a;p=m6w6%2Flibmemcached

Started to abstract out the stats calls.
---

diff --git a/include/memcached.h b/include/memcached.h
index a9c64359..fc732c27 100644
--- a/include/memcached.h
+++ b/include/memcached.h
@@ -161,6 +161,9 @@ memcached_return memcached_response(memcached_st *ptr,
                                     char *buffer, size_t buffer_length,
                                     unsigned int server_key);
 unsigned int memcached_generate_hash(char *key, size_t key_length);
+memcached_return memcached_stat_get_value(memcached_stat_st *stat, char *key, 
+                                          char *value, size_t value_length);
+char ** memcached_stat_get_keys(memcached_stat_st *stat, memcached_return *error);
 
 #ifdef __cplusplus
 }
diff --git a/lib/memcached_response.c b/lib/memcached_response.c
index 1d0937af..91ae3fe6 100644
--- a/lib/memcached_response.c
+++ b/lib/memcached_response.c
@@ -15,6 +15,7 @@ memcached_return memcached_response(memcached_st *ptr,
   char *buffer_ptr;
 
   memset(buffer, 0, buffer_length);
+  send_length= 0;
 
   buffer_ptr= buffer;
   while (1)
@@ -31,47 +32,48 @@ memcached_return memcached_response(memcached_st *ptr,
       buffer_ptr++;
   }
 
-  if (send_length)
-    switch(buffer[0])
+  switch(buffer[0])
+  {
+  case 'V': /* VALUE */
+    return MEMCACHED_SUCCESS;
+  case 'O': /* OK */
+    return MEMCACHED_SUCCESS;
+  case 'S': /* STORED STATS SERVER_ERROR */
+    {
+      if (buffer[1] == 'T') /* STORED STATS */
+        return MEMCACHED_SUCCESS;
+      else if (buffer[1] == 'E')
+        return MEMCACHED_SERVER_ERROR;
+      else
+        return MEMCACHED_UNKNOWN_READ_FAILURE;
+    }
+  case 'D': /* DELETED */
+    return MEMCACHED_SUCCESS;
+  case 'N': /* NOT_FOUND */
     {
-    case 'V': /* VALUE */
-      return MEMCACHED_SUCCESS;
-    case 'O': /* OK */
-      return MEMCACHED_SUCCESS;
-    case 'S': /* STORED STATS SERVER_ERROR */
-      {
-        if (buffer[1] == 'T') /* STORED STATS */
-          return MEMCACHED_SUCCESS;
-        else if (buffer[1] == 'E')
-          return MEMCACHED_SERVER_ERROR;
-        else
-          return MEMCACHED_UNKNOWN_READ_FAILURE;
-      }
-    case 'D': /* DELETED */
-      return MEMCACHED_SUCCESS;
-    case 'N': /* NOT_FOUND */
-      {
-        if (buffer[4] == 'F')
-          return MEMCACHED_NOTFOUND;
-        else if (buffer[4] == 'S')
-          return MEMCACHED_NOTSTORED;
-        else
-          return MEMCACHED_UNKNOWN_READ_FAILURE;
-      }
-    case 'E': /* PROTOCOL ERROR or END */
-      {
-        if (buffer[1] == 'N')
-          return MEMCACHED_NOTFOUND;
-        else if (buffer[1] == 'R')
-          return MEMCACHED_PROTOCOL_ERROR;
-        else
-          return MEMCACHED_UNKNOWN_READ_FAILURE;
-      }
-    case 'C': /* CLIENT ERROR */
-      return MEMCACHED_CLIENT_ERROR;
-    default:
-      return MEMCACHED_UNKNOWN_READ_FAILURE;
+      if (buffer[4] == 'F')
+        return MEMCACHED_NOTFOUND;
+      else if (buffer[4] == 'S')
+        return MEMCACHED_NOTSTORED;
+      else
+        return MEMCACHED_UNKNOWN_READ_FAILURE;
     }
+  case 'E': /* PROTOCOL ERROR or END */
+    {
+      if (buffer[1] == 'N')
+        return MEMCACHED_NOTFOUND;
+      else if (buffer[1] == 'R')
+        return MEMCACHED_PROTOCOL_ERROR;
+      else
+        return MEMCACHED_UNKNOWN_READ_FAILURE;
+    }
+  case 'C': /* CLIENT ERROR */
+    return MEMCACHED_CLIENT_ERROR;
+  default:
+    return MEMCACHED_UNKNOWN_READ_FAILURE;
+
+    return MEMCACHED_READ_FAILURE;
+  }
 
-  return MEMCACHED_READ_FAILURE;
+  return MEMCACHED_SUCCESS;
 }
diff --git a/lib/memcached_stats.c b/lib/memcached_stats.c
index 86714759..48e62cce 100644
--- a/lib/memcached_stats.c
+++ b/lib/memcached_stats.c
@@ -3,6 +3,37 @@
 
 #include <memcached.h>
 
+static char *memcached_stat_keys[] = {
+  "pid",
+  "uptime",
+  "time",
+  "version",
+  "pointer_size",
+  "rusage_user",
+  "rusage_system",
+  "rusage_user_seconds",
+  "rusage_user_microseconds",
+  "rusage_system_seconds",
+  "rusage_system_microseconds",
+  "curr_items",
+  "total_items",
+  "bytes",
+  "curr_connections",
+  "total_connections",
+  "connection_structures",
+  "cmd_get",
+  "cmd_set",
+  "get_hits",
+  "get_misses",
+  "evictions",
+  "bytes_read",
+  "bytes_written",
+  "limit_maxbytes",
+  "threads",
+  NULL
+};
+
+
 static void set_data(memcached_stat_st *stat, char *key, char *value)
 {
   if (!memcmp("pid", key, strlen("pid")))
@@ -115,6 +146,125 @@ static void set_data(memcached_stat_st *stat, char *key, char *value)
   }
 }
 
+memcached_return memcached_stat_get_value(memcached_stat_st *stat, char *key, 
+                                          char *value, size_t value_length)
+{
+  memcached_return rc;
+
+  rc= MEMCACHED_SUCCESS;
+
+  if (!memcmp("pid", key, strlen("pid")))
+  {
+    snprintf(value, value_length,"%u", stat->pid);
+  }
+  else if (!memcmp("uptime", key, strlen("uptime")))
+  {
+    snprintf(value, value_length,"%u", stat->uptime);
+  }
+  else if (!memcmp("time", key, strlen("time")))
+  {
+    snprintf(value, value_length,"%llu", (unsigned long long)stat->time);
+  }
+  else if (!memcmp("version", key, strlen("version")))
+  {
+    snprintf(value, value_length,"%s", stat->version);
+  }
+  else if (!memcmp("pointer_size", key, strlen("pointer_size")))
+  {
+    snprintf(value, value_length,"%u", stat->pointer_size);
+  }
+  else if (!memcmp("rusage_user", key, strlen("rusage_user")))
+  {
+    snprintf(value, value_length,"%u", stat->rusage_user);
+  }
+  else if (!memcmp("rusage_system", key, strlen("rusage_system")))
+  {
+    snprintf(value, value_length,"%u", stat->rusage_system);
+  }
+  else if (!memcmp("rusage_user_seconds", key, strlen("rusage_user_seconds")))
+  {
+    snprintf(value, value_length,"%u", stat->rusage_user_seconds);
+  }
+  else if (!memcmp("rusage_user_microseconds", key, strlen("rusage_user_microseconds")))
+  {
+    snprintf(value, value_length,"%u", stat->rusage_user_microseconds);
+  }
+  else if (!memcmp("rusage_system_seconds", key, strlen("rusage_system_seconds")))
+  {
+    snprintf(value, value_length,"%u", stat->rusage_system_seconds);
+  }
+  else if (!memcmp("rusage_system_microseconds", key, strlen("rusage_system_microseconds")))
+  {
+    snprintf(value, value_length,"%u", stat->rusage_system_microseconds);
+  }
+  else if (!memcmp("curr_items", key, strlen("curr_items")))
+  {
+    snprintf(value, value_length,"%u", stat->curr_items);
+  }
+  else if (!memcmp("total_items", key, strlen("total_items")))
+  {
+    snprintf(value, value_length,"%u", stat->total_items);
+  }
+  else if (!memcmp("bytes", key, strlen("bytes")))
+  {
+    snprintf(value, value_length,"%llu", stat->bytes);
+  }
+  else if (!memcmp("curr_connections", key, strlen("curr_connections")))
+  {
+    snprintf(value, value_length,"%u", stat->curr_connections);
+  }
+  else if (!memcmp("total_connections", key, strlen("total_connections")))
+  {
+    snprintf(value, value_length,"%u", stat->total_connections);
+  }
+  else if (!memcmp("connection_structures", key, strlen("connection_structures")))
+  {
+    snprintf(value, value_length,"%u", stat->connection_structures);
+  }
+  else if (!memcmp("cmd_get", key, strlen("cmd_get")))
+  {
+    snprintf(value, value_length,"%llu", stat->cmd_get);
+  }
+  else if (!memcmp("cmd_set", key, strlen("cmd_set")))
+  {
+    snprintf(value, value_length,"%llu", stat->cmd_set);
+  }
+  else if (!memcmp("get_hits", key, strlen("get_hits")))
+  {
+    snprintf(value, value_length,"%llu", stat->get_hits);
+  }
+  else if (!memcmp("get_misses", key, strlen("get_misses")))
+  {
+    snprintf(value, value_length,"%llu", stat->get_misses);
+  }
+  else if (!memcmp("evictions", key, strlen("evictions")))
+  {
+    snprintf(value, value_length,"%llu", stat->evictions);
+  }
+  else if (!memcmp("bytes_read", key, strlen("bytes_read")))
+  {
+    snprintf(value, value_length,"%llu", stat->bytes_read);
+  }
+  else if (!memcmp("bytes_written", key, strlen("bytes_written")))
+  {
+    snprintf(value, value_length,"%llu", stat->bytes_written);
+  }
+  else if (!memcmp("limit_maxbytes", key, strlen("limit_maxbytes")))
+  {
+    snprintf(value, value_length,"%u", stat->limit_maxbytes);
+  }
+  else if (!memcmp("threads", key, strlen("threads")))
+  {
+    snprintf(value, value_length,"%u", stat->threads);
+  }
+  else
+  {
+    rc= MEMCACHED_NOTFOUND;
+  }
+
+  return rc;
+}
+
 static memcached_return memcached_stats_fetch(memcached_st *ptr,
                                               memcached_stat_st *stat,
                                               char *args,
@@ -141,18 +291,8 @@ static memcached_return memcached_stats_fetch(memcached_st *ptr,
 
   sent_length= write(ptr->hosts[server_key].fd, buffer, send_length);
 
-  if (sent_length == -1)
-  {
-    fprintf(stderr, "error %s: write: %m\n", __FUNCTION__);
-    return MEMCACHED_WRITE_FAILURE;
-  }
-
-  if (sent_length != send_length)
-  {
-    fprintf(stderr, "error %s: short write %d %d: %m\n",
-	    __FUNCTION__, sent_length, send_length);
+  if (sent_length == -1 || sent_length != send_length)
     return MEMCACHED_WRITE_FAILURE;
-  }
 
   rc= memcached_response(ptr, buffer, HUGE_STRING_LEN, 0);
 
@@ -236,3 +376,16 @@ memcached_return memcached_stat_hostname(memcached_stat_st *stat, char *args,
 
   return rc;
 }
+
+/* 
+  We make a copy of the keys since at some point in the not so distant future
+  we will add support for "found" keys.
+*/
+char ** memcached_stat_get_keys(memcached_stat_st *stat, memcached_return *error)
+{
+  char **list= (char **)malloc(sizeof(memcached_stat_keys));
+
+  memcpy(list, memcached_stat_keys, sizeof(memcached_stat_keys));
+
+  return list;
+}
diff --git a/lib/memcached_verbosity.c b/lib/memcached_verbosity.c
index 25876d4f..b68fbbd4 100644
--- a/lib/memcached_verbosity.c
+++ b/lib/memcached_verbosity.c
@@ -3,7 +3,7 @@
 memcached_return memcached_verbosity(memcached_st *ptr, unsigned int verbosity)
 {
   unsigned int x;
-  size_t send_length, sent_length;
+  size_t send_length;
   memcached_return rc;
   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
 
diff --git a/tests/output.res b/tests/output.res
index e69de29b..445d3783 100644
--- a/tests/output.res
+++ b/tests/output.res
@@ -0,0 +1,26 @@
+Found key pid
+Found key uptime
+Found key time
+Found key version
+Found key pointer_size
+Found key rusage_user
+Found key rusage_system
+Found key rusage_user_seconds
+Found key rusage_user_microseconds
+Found key rusage_system_seconds
+Found key rusage_system_microseconds
+Found key curr_items
+Found key total_items
+Found key bytes
+Found key curr_connections
+Found key total_connections
+Found key connection_structures
+Found key cmd_get
+Found key cmd_set
+Found key get_hits
+Found key get_misses
+Found key evictions
+Found key bytes_read
+Found key bytes_written
+Found key limit_maxbytes
+Found key threads
diff --git a/tests/test.c b/tests/test.c
index af27e8cd..64f8dece 100644
--- a/tests/test.c
+++ b/tests/test.c
@@ -344,6 +344,22 @@ void mget_test(void)
   memcached_deinit(memc);
 }
 
+void get_stats_keys(void)
+{
+ char **list;
+ char **ptr;
+ memcached_stat_st stat;
+ memcached_return rc;
+
+ list= memcached_stat_get_keys(&stat, &rc);
+ assert(rc == MEMCACHED_SUCCESS);
+ for (ptr= list; *ptr; ptr++)
+   printf("Found key %s\n", *ptr);
+
+ free(list);
+
+}
+
 
 int main(void)
 {
@@ -367,6 +383,7 @@ int main(void)
   decrement_test();
   quit_test();
   mget_test();
+  get_stats_keys();
 
   /* Clean up whatever we might have left */
   flush_test();