X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/4d19e3443cc3a36bd51684099152d89e18c45afa..f96a8a8054b3b699c2fba797bdcd203dda1168ce:/src/redis-cli.c

diff --git a/src/redis-cli.c b/src/redis-cli.c
index 650eafe3..b129df61 100644
--- a/src/redis-cli.c
+++ b/src/redis-cli.c
@@ -55,11 +55,13 @@ static struct config {
     int hostport;
     char *hostsocket;
     long repeat;
+    long interval;
     int dbnum;
     int interactive;
     int shutdown;
     int monitor_mode;
     int pubsub_mode;
+    int latency_mode;
     int stdinarg; /* get last arg from stdin. (-x option) */
     char *auth;
     int raw_output; /* output mode per command */
@@ -517,6 +519,8 @@ static int cliSendCommand(int argc, char **argv, int repeat) {
                 cliRefreshPrompt();
             }
         }
+        if (config.interval) usleep(config.interval);
+        fflush(stdout); /* Make it grep friendly */
     }
 
     free(argvlen);
@@ -552,6 +556,10 @@ static int parseOptions(int argc, char **argv) {
         } else if (!strcmp(argv[i],"-r") && !lastarg) {
             config.repeat = strtoll(argv[i+1],NULL,10);
             i++;
+        } else if (!strcmp(argv[i],"-i") && !lastarg) {
+            double seconds = atof(argv[i+1]);
+            config.interval = seconds*1000000;
+            i++;
         } else if (!strcmp(argv[i],"-n") && !lastarg) {
             config.dbnum = atoi(argv[i+1]);
             i++;
@@ -560,6 +568,8 @@ static int parseOptions(int argc, char **argv) {
             i++;
         } else if (!strcmp(argv[i],"--raw")) {
             config.raw_output = 1;
+        } else if (!strcmp(argv[i],"--latency")) {
+            config.latency_mode = 1;
         } else if (!strcmp(argv[i],"-d") && !lastarg) {
             sdsfree(config.mb_delim);
             config.mb_delim = sdsnew(argv[i+1]);
@@ -604,10 +614,13 @@ static void usage() {
 "  -s <socket>      Server socket (overrides hostname and port)\n"
 "  -a <password>    Password to use when connecting to the server\n"
 "  -r <repeat>      Execute specified command N times\n"
+"  -i <interval>    When -r is used, waits <interval> seconds per command.\n"
+"                   It is possible to specify sub-second times like -i 0.1.\n"
 "  -n <db>          Database number\n"
 "  -x               Read last argument from STDIN\n"
 "  -d <delimiter>   Multi-bulk delimiter in for raw formatting (default: \\n)\n"
 "  --raw            Use raw formatting for replies (default when STDOUT is not a tty)\n"
+"  --latency        Enter a special mode continuously sampling latency.\n"
 "  --help           Output this help and exit\n"
 "  --version        Output version and exit\n"
 "\n"
@@ -615,6 +628,7 @@ static void usage() {
 "  cat /etc/passwd | redis-cli -x set mypasswd\n"
 "  redis-cli get mypasswd\n"
 "  redis-cli -r 100 lpush mylist x\n"
+"  redis-cli -r 100 -i 1 info | grep used_memory_human:\n"
 "\n"
 "When no command is given, redis-cli starts in interactive mode.\n"
 "Type \"help\" in interactive mode for information on available commands.\n"
@@ -683,7 +697,7 @@ static void repl() {
                     int repeat, skipargs = 0;
 
                     repeat = atoi(argv[0]);
-                    if (repeat) {
+                    if (argc > 1 && repeat) {
                         skipargs = 1;
                     } else {
                         repeat = 1;
@@ -696,7 +710,8 @@ static void repl() {
 
                         /* If we still cannot send the command print error.
                          * We'll try to reconnect the next time. */
-                        if (cliSendCommand(argc,argv,1) != REDIS_OK)
+                        if (cliSendCommand(argc-skipargs,argv+skipargs,repeat)
+                            != REDIS_OK)
                             cliPrintContextError();
                     }
                     elapsed = mstime()-start_time;
@@ -728,6 +743,38 @@ static int noninteractive(int argc, char **argv) {
     return retval;
 }
 
+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);
+    }
+}
+
 int main(int argc, char **argv) {
     int firstarg;
 
@@ -735,11 +782,13 @@ int main(int argc, char **argv) {
     config.hostport = 6379;
     config.hostsocket = NULL;
     config.repeat = 1;
+    config.interval = 0;
     config.dbnum = 0;
     config.interactive = 0;
     config.shutdown = 0;
     config.monitor_mode = 0;
     config.pubsub_mode = 0;
+    config.latency_mode = 0;
     config.stdinarg = 0;
     config.auth = NULL;
     config.raw_output = !isatty(fileno(stdout)) && (getenv("FAKETTY") == NULL);
@@ -750,6 +799,12 @@ int main(int argc, char **argv) {
     argc -= firstarg;
     argv += firstarg;
 
+    /* Start in latency mode if appropriate */
+    if (config.latency_mode) {
+        cliConnect(0);
+        latencyMode();
+    }
+
     /* Start interactive mode when no command is provided */
     if (argc == 0) {
         /* Note that in repl mode we don't abort on connection error.