stage1

server/kvstore.c

@@ -47,6 +47,7 @@ bool dumpToFile(char* key, char* val){
 
     /////////////////add/////////////////
     int setNo = getFileId(key);
+    printf("ch1 %d",setNo);
     /////////////////add end/////////////////
 
     char fileName[10];
@@ -60,11 +61,36 @@ bool dumpToFile(char* key, char* val){
     pthread_mutex_lock(&(store.locks[setNo]));
     /////////////////add end/////////////////
 
-    FILE *fp = fopen(fileName,"a");
+    FILE *fp = fopen(fileName,"r");
     FILE *newFp = fopen(tempfileName,"w");
     char* storedKey = malloc(sizeof(char)*257);
     char* storedVal = malloc(sizeof(char)*256*1024+1);
-    while(1){
+    // char* storedVal;
+    int count=0;
+    // while((getc(fp))!=EOF)
+	// {
+    //     // char buff[1024];
+    //     fgets(stored, 256*1024+1, (FILE*)fp);
+    //     puts(stored);
+    //     storedKey = strtok(storedVal,",");
+    //     if(!strcmp(key,storedKey)) {
+    //         keyExists = true;
+    //         fprintf(newFp,"%s,%s\n",key,val);
+    //     }
+    //     storedVal = strtok(NULL,",");
+    //     // count++;
+    //     // if(count != 1)
+    //     // {
+    //     // // getData(buff);
+    //     // }
+    //     getch();
+	// }
+    if (fp!=NULL)
+    {
+        /* code */
+        while(!feof(fp)){
+            printf("ch2");
+
             if(fscanf(fp,"%[^,],%[^\n]\n",storedKey,storedVal) == EOF)
                 break;
             if(!strcmp(key,storedKey)) {
@@ -74,9 +100,13 @@ bool dumpToFile(char* key, char* val){
             else
                 fprintf(newFp,"%s,%s\n",storedKey,storedVal);
         }
+    }
+    
     if(!keyExists)
         fprintf(newFp,"%s,%s\n",key,val);
 
+    printf("ch3");
+
     remove(fileName);
     // free(fp);
     rename(tempfileName,fileName);
@@ -111,10 +141,12 @@ bool deleteStore(char* key) {
     pthread_mutex_lock(&(store.locks[setNo]));
     /////////////////add end/////////////////
 
-    FILE *fp = fopen(fileName,"a");
+    FILE *fp = fopen(fileName,"r");
     FILE *newFp = fopen(tempfileName,"w");
     char* storedKey = malloc(sizeof(char)*256);
     char* storedVal = malloc(sizeof(char)*256*1024+1);
+    if (fp!=NULL)
+    {
         while(1){
             if(fscanf(fp,"%[^,],%[^\n]\n",storedKey,storedVal) == EOF)
                 break;
@@ -123,6 +155,8 @@ bool deleteStore(char* key) {
             }else
                 fprintf(newFp,"%s,%s\n",storedKey,storedVal);
         }
+    }
+    
 
     remove(fileName);
     // free(fp);
@@ -222,3 +256,13 @@ int iniit() {
         printf("Not found");
     return 0;
 }
+
+// int main(){
+//     initStore();
+//     dumpToFile("sundaram111","shivam4");
+//     dumpToFile("sundaram112","shivam4");
+//     dumpToFile("key1","val");
+//     printf("%s\n",restoreFromFile("sundaram111"));
+//     deleteStore("key1");
+
+// }
\ No newline at end of file