+static int evalMode(int argc, char **argv) {
+ sds script = sdsempty();
+ FILE *fp;
+ char buf[1024];
+ size_t nread;
+ char **argv2;
+ int j, got_comma = 0, keys = 0;
+
+ /* Load the script from the file, as an sds string. */
+ fp = fopen(config.eval,"r");
+ if (!fp) {
+ fprintf(stderr,
+ "Can't open file '%s': %s\n", config.eval, strerror(errno));
+ exit(1);
+ }
+ while((nread = fread(buf,1,sizeof(buf),fp)) != 0) {
+ script = sdscatlen(script,buf,nread);
+ }
+ fclose(fp);
+
+ /* Create our argument vector */
+ argv2 = zmalloc(sizeof(sds)*(argc+3));
+ argv2[0] = sdsnew("EVAL");
+ argv2[1] = script;
+ for (j = 0; j < argc; j++) {
+ if (!got_comma && argv[j][0] == ',' && argv[j][1] == 0) {
+ got_comma = 1;
+ continue;
+ }
+ argv2[j+3-got_comma] = sdsnew(argv[j]);
+ if (!got_comma) keys++;
+ }
+ argv2[2] = sdscatprintf(sdsempty(),"%d",keys);
+
+ /* Call it */
+ return cliSendCommand(argc+3-got_comma, argv2, config.repeat);
+}
+
+static void latencyMode(void) {
+ redisReply *reply;
+ long long start, latency, min, max, tot, count = 0;
+ double avg;
+
+ if (!context) exit(1);
+ while(1) {
+ start = mstime();
+ reply = redisCommand(context,"PING");
+ if (reply == NULL) {
+ fprintf(stderr,"\nI/O error\n");
+ exit(1);
+ }
+ latency = mstime()-start;
+ freeReplyObject(reply);
+ count++;
+ if (count == 1) {
+ min = max = tot = latency;
+ avg = (double) latency;
+ } else {
+ if (latency < min) min = latency;
+ if (latency > max) max = latency;
+ tot += latency;
+ avg = (double) tot/count;
+ }
+ printf("\x1b[0G\x1b[2Kmin: %lld, max: %lld, avg: %.2f (%lld samples)",
+ min, max, avg, count);
+ fflush(stdout);
+ usleep(10000);
+ }
+}
+
+static void slaveMode(void) {
+ /* To start we need to send the SYNC command and return the payload.
+ * The hiredis client lib does not understand this part of the protocol
+ * and we don't want to mess with its buffers, so everything is performed
+ * using direct low-level I/O. */
+ int fd = context->fd;
+ char buf[1024], *p;
+ ssize_t nread;
+ unsigned long long payload;
+
+ /* Send the SYNC command. */
+ if (write(fd,"SYNC\r\n",6) != 6) {
+ fprintf(stderr,"Error writing to master\n");
+ exit(1);
+ }
+
+ /* Read $<payload>\r\n, making sure to read just up to "\n" */
+ p = buf;
+ while(1) {
+ nread = read(fd,p,1);
+ if (nread <= 0) {
+ fprintf(stderr,"Error reading bulk length while SYNCing\n");
+ exit(1);
+ }
+ if (*p == '\n') break;
+ p++;
+ }
+ *p = '\0';
+ payload = strtoull(buf+1,NULL,10);
+ fprintf(stderr,"SYNC with master, discarding %lld bytes of bulk tranfer...\n",
+ payload);
+
+ /* Discard the payload. */
+ while(payload) {
+ nread = read(fd,buf,(payload > sizeof(buf)) ? sizeof(buf) : payload);
+ if (nread <= 0) {
+ fprintf(stderr,"Error reading RDB payload while SYNCing\n");
+ exit(1);
+ }
+ payload -= nread;
+ }
+ fprintf(stderr,"SYNC done. Logging commands from master.\n");
+
+ /* Now we can use the hiredis to read the incoming protocol. */
+ config.output = OUTPUT_CSV;
+ while (cliReadReply(0) == REDIS_OK);
+}
+
projects / redis.git / blobdiff