Redis Native C/C++ | POF (non-optimize)
Complexity
LREN - O(N), N
LRANGE - O (S + N)
LINDEX - O (N)
LINSET - O (N)
LSET - O (N), O (1) for header and tail
LTRIM - O (N)
Connection
void connection() {
struct timeval timeout = { 2, 500000 }; // 2.5 segundos
c = redisConnectWithTimeout(hostname, port, timeout);
if (c == NULL || c->err) {
if (c) {
printf("Connection error: %s\n", c->errstr);
redisFree(c);
}
else
printf("Connection error: can't allocate redis context\n");
exit(1);
}
}Runnable
void threadRun(_In_ _beginthread_proc_type _StartAddress) {
HANDLE hThread;
hThread = (HANDLE)_beginthread(_StartAddress, 0, NULL);
WaitForSingleObject(hThread, INFINITE);
}Producer
void producer(void *param) {
unsigned int j = 0;
while (true) {
clearScreen("PRODUCER \n");
char buf[20];
snprintf(buf, 20, "%s", getFormattedTime());
reply = (redisReply*)redisCommand(c, "RPUSH list element-%s", buf);
printf("RPUSH list element-%s\n", buf);
freeReplyObject(reply);
reply = (redisReply*)redisCommand(c, "LLEN list");
printf("LLEN list: %lu\n",reply->integer);
freeReplyObject(reply);
reply = (redisReply*)redisCommand(c, "LRANGE list 0 -1");
printf("LRANGE list");
if (reply->type == REDIS_REPLY_ARRAY) {
for (j = 0; j < reply->elements; j++) {
printf("%s ",reply->element[j]->str);
}
}
freeReplyObject(reply);
Sleep(30);
}
}Consumer
void consumer(void *param) {
while (true) {
clearScreen("CONSUMER \n");
reply = (redisReply*)redisCommand(c, "LLEN list");
unsigned int size = reply->integer;
printf("LLEN list: %lu\n", size);
freeReplyObject(reply);
if (size > 0) {
reply = (redisReply*)redisCommand(c, "BLPOP list 0");
printf("BLPOP Element: \n");
if (reply->type == REDIS_REPLY_ARRAY) {
for (unsigned int j = 0; j < reply->elements; j++) {
printf("%s ", reply->element[j]->str);
}
}
freeReplyObject(reply);
reply = (redisReply*)redisCommand(c, "LRANGE list 0 -1");
printf("LRANGE list: \n");
if (reply->type == REDIS_REPLY_ARRAY) {
for (unsigned int j = 0; j < reply->elements; j++) {
printf("%s ", reply->element[j]->str);
}
}
freeReplyObject(reply);
}
Sleep(27);
}
}Laptop
Macbook (2014) w/ Bootcamp
Intel(R) Core(TM) i5-3210M
CPU @ 2.50GHz 2.49GHz
16 GB RAM
System x64