Fixed comment typo

[redis.git] / src / t_string.c

diff --git a/src/t_string.c b/src/t_string.c
index 2d7785ff3e33dde5d9f7bd9489048c23e816811f..e0b9b263dc11e81939258555bd9248066b849660 100644 (file)
--- a/src/t_string.c
+++ b/src/t_string.c
@@ -1,4 +1,3 @@
-#include <limits.h>

 #include "redis.h"
 
 /*-----------------------------------------------------------------------------
 #include "redis.h"
 
 /*-----------------------------------------------------------------------------


@@ -14,7 +13,6 @@ static int checkStringLength(redisClient *c, long long size) {
 }
 
 void setGenericCommand(redisClient *c, int nx, robj *key, robj *val, robj *expire) {
 }
 
 void setGenericCommand(redisClient *c, int nx, robj *key, robj *val, robj *expire) {

-    int retval;

     long seconds = 0; /* initialized to avoid an harmness warning */
 
     if (expire) {
     long seconds = 0; /* initialized to avoid an harmness warning */
 
     if (expire) {


@@ -26,21 +24,12 @@ void setGenericCommand(redisClient *c, int nx, robj *key, robj *val, robj *expir
         }
     }
 
         }
     }
 

-    retval = dbAdd(c->db,key,val);
-    if (retval == REDIS_ERR) {
-        if (!nx) {
-            dbReplace(c->db,key,val);
-            incrRefCount(val);
-        } else {
-            addReply(c,shared.czero);
-            return;
-        }
-    } else {
-        incrRefCount(val);
+    if (lookupKeyWrite(c->db,key) != NULL && nx) {
+        addReply(c,shared.czero);
+        return;

     }
     }

-    signalModifiedKey(c->db,key);
+    setKey(c->db,key,val);

     server.dirty++;
     server.dirty++;

-    removeExpire(c->db,key);

     if (expire) setExpire(c->db,key,time(NULL)+seconds);
     addReply(c, nx ? shared.cone : shared.ok);
 }
     if (expire) setExpire(c->db,key,time(NULL)+seconds);
     addReply(c, nx ? shared.cone : shared.ok);
 }


@@ -82,11 +71,8 @@ void getCommand(redisClient *c) {
 void getsetCommand(redisClient *c) {
     if (getGenericCommand(c) == REDIS_ERR) return;
     c->argv[2] = tryObjectEncoding(c->argv[2]);
 void getsetCommand(redisClient *c) {
     if (getGenericCommand(c) == REDIS_ERR) return;
     c->argv[2] = tryObjectEncoding(c->argv[2]);

-    dbReplace(c->db,c->argv[1],c->argv[2]);
-    incrRefCount(c->argv[2]);
-    signalModifiedKey(c->db,c->argv[1]);
+    setKey(c->db,c->argv[1],c->argv[2]);

     server.dirty++;
     server.dirty++;

-    removeExpire(c->db,c->argv[1]);

 }
 
 static int getBitOffsetFromArgument(redisClient *c, robj *o, size_t *offset) {
 }
 
 static int getBitOffsetFromArgument(redisClient *c, robj *o, size_t *offset) {


@@ -139,7 +125,7 @@ void setbitCommand(redisClient *c) {
             robj *decoded = getDecodedObject(o);
             o = createStringObject(decoded->ptr, sdslen(decoded->ptr));
             decrRefCount(decoded);
             robj *decoded = getDecodedObject(o);
             o = createStringObject(decoded->ptr, sdslen(decoded->ptr));
             decrRefCount(decoded);

-            dbReplace(c->db,c->argv[1],o);
+            dbOverwrite(c->db,c->argv[1],o);

         }
     }
 
         }
     }
 


@@ -237,7 +223,7 @@ void setrangeCommand(redisClient *c) {
             robj *decoded = getDecodedObject(o);
             o = createStringObject(decoded->ptr, sdslen(decoded->ptr));
             decrRefCount(decoded);
             robj *decoded = getDecodedObject(o);
             o = createStringObject(decoded->ptr, sdslen(decoded->ptr));
             decrRefCount(decoded);

-            dbReplace(c->db,c->argv[1],o);
+            dbOverwrite(c->db,c->argv[1],o);

         }
     }
 
         }
     }
 


@@ -260,7 +246,7 @@ void getrangeCommand(redisClient *c) {
         return;
     if (getLongFromObjectOrReply(c,c->argv[3],&end,NULL) != REDIS_OK)
         return;
         return;
     if (getLongFromObjectOrReply(c,c->argv[3],&end,NULL) != REDIS_OK)
         return;

-    if ((o = lookupKeyReadOrReply(c,c->argv[1],shared.nullbulk)) == NULL ||
+    if ((o = lookupKeyReadOrReply(c,c->argv[1],shared.emptybulk)) == NULL ||

         checkType(c,o,REDIS_STRING)) return;
 
     if (o->encoding == REDIS_ENCODING_INT) {
         checkType(c,o,REDIS_STRING)) return;
 
     if (o->encoding == REDIS_ENCODING_INT) {


@@ -281,7 +267,7 @@ void getrangeCommand(redisClient *c) {
     /* Precondition: end >= 0 && end < strlen, so the only condition where
      * nothing can be returned is: start > end. */
     if (start > end) {
     /* Precondition: end >= 0 && end < strlen, so the only condition where
      * nothing can be returned is: start > end. */
     if (start > end) {

-        addReply(c,shared.nullbulk);
+        addReply(c,shared.emptybulk);

     } else {
         addReplyBulkCBuffer(c,(char*)str+start,end-start+1);
     }
     } else {
         addReplyBulkCBuffer(c,(char*)str+start,end-start+1);
     }


@@ -320,18 +306,15 @@ void msetGenericCommand(redisClient *c, int nx) {
                 busykeys++;
             }
         }
                 busykeys++;
             }
         }

-    }
-    if (busykeys) {
-        addReply(c, shared.czero);
-        return;
+        if (busykeys) {
+            addReply(c, shared.czero);
+            return;
+        }

     }
 
     for (j = 1; j < c->argc; j += 2) {
         c->argv[j+1] = tryObjectEncoding(c->argv[j+1]);
     }
 
     for (j = 1; j < c->argc; j += 2) {
         c->argv[j+1] = tryObjectEncoding(c->argv[j+1]);

-        dbReplace(c->db,c->argv[j],c->argv[j+1]);
-        incrRefCount(c->argv[j+1]);
-        removeExpire(c->db,c->argv[j]);
-        signalModifiedKey(c->db,c->argv[j]);
+        setKey(c->db,c->argv[j],c->argv[j+1]);

     }
     server.dirty += (c->argc-1)/2;
     addReply(c, nx ? shared.cone : shared.ok);
     }
     server.dirty += (c->argc-1)/2;
     addReply(c, nx ? shared.cone : shared.ok);


@@ -347,7 +330,7 @@ void msetnxCommand(redisClient *c) {
 
 void incrDecrCommand(redisClient *c, long long incr) {
     long long value, oldvalue;
 
 void incrDecrCommand(redisClient *c, long long incr) {
     long long value, oldvalue;

-    robj *o;
+    robj *o, *new;

 
     o = lookupKeyWrite(c->db,c->argv[1]);
     if (o != NULL && checkType(c,o,REDIS_STRING)) return;
 
     o = lookupKeyWrite(c->db,c->argv[1]);
     if (o != NULL && checkType(c,o,REDIS_STRING)) return;


@@ -359,12 +342,15 @@ void incrDecrCommand(redisClient *c, long long incr) {
         addReplyError(c,"increment or decrement would overflow");
         return;
     }
         addReplyError(c,"increment or decrement would overflow");
         return;
     }

-    o = createStringObjectFromLongLong(value);
-    dbReplace(c->db,c->argv[1],o);
+    new = createStringObjectFromLongLong(value);
+    if (o)
+        dbOverwrite(c->db,c->argv[1],new);
+    else
+        dbAdd(c->db,c->argv[1],new);

     signalModifiedKey(c->db,c->argv[1]);
     server.dirty++;
     addReply(c,shared.colon);
     signalModifiedKey(c->db,c->argv[1]);
     server.dirty++;
     addReply(c,shared.colon);

-    addReply(c,o);
+    addReply(c,new);

     addReply(c,shared.crlf);
 }
 
     addReply(c,shared.crlf);
 }
 


@@ -417,7 +403,7 @@ void appendCommand(redisClient *c) {
             robj *decoded = getDecodedObject(o);
             o = createStringObject(decoded->ptr, sdslen(decoded->ptr));
             decrRefCount(decoded);
             robj *decoded = getDecodedObject(o);
             o = createStringObject(decoded->ptr, sdslen(decoded->ptr));
             decrRefCount(decoded);

-            dbReplace(c->db,c->argv[1],o);
+            dbOverwrite(c->db,c->argv[1],o);

         }
 
         /* Append the value */
         }
 
         /* Append the value */