diff options
| -rw-r--r-- | P2/lib/utils.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/P2/lib/utils.c b/P2/lib/utils.c index dba63b5..8373a09 100644 --- a/P2/lib/utils.c +++ b/P2/lib/utils.c @@ -23,6 +23,34 @@ char *getChunkData(int mapperID) { // sends chunks of size 1024 to the mappers in RR fashion void sendChunkData(char *inputFile, int nMappers) { + struct msgBuffer message; + key_t key = 10; + int msgid; + + // open message queue + msgid = msgget(key, 0666 | IPC_CREAT); + message -> msgText = 1; + FILE *fptr = fopen(inputFile, "r"); + + // construct chunks of 1024 bytes + while(fgets(message, chunkSize, fptr) != EOF) { + + /* Go to the end of the chunk, check if final character + is a space if character is a space, do nothing + else cut off before that word and put back file */ + // TODO! help + + msgsnd(msgid, &msgText, mapperID); + } + + for (int i = 1; i < mapperID; i++) { + msgsnd(msgid, (void*)&END, MSGSIZE, i); + + // TODO! does this need to be in another loop or is blocking good enough? + msgrcv(msgid, (void*)&ACK, MSGSIZE, i); + } + + msgctl(msgid, IPC_RMID, 0); // close that bih } // hash function to divide the list of word.txt files across reducers |