logsend: send each message multiple times; print statistics

This commit adds two simple features:
1. Sending each message multiple times.
This is aimed to help with testing dlog performance;
2. Printing statistics.
Prints time taken by each sending operation.

Change-Id: I1c1dc935ea93e7e1ea9aa5cbbc5c4399c2efb171

diff --git a/src/logsend/logsend.c b/src/logsend/logsend.c
index 560d241..4ce5e11 100644 (file)
--- a/src/logsend/logsend.c
+++ b/src/logsend/logsend.c
@@ -1,6 +1,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdbool.h>
 
 #include <dlog.h>
 #include <logcommon.h>
@@ -9,9 +10,11 @@
 struct parsed_params {
        log_id_t      buffer;
        log_priority  priority;
-       int          help;
+       int           help;
        const char   *tag;
        char         *msg;
+       unsigned      count;
+       bool          print_stats;
 };
 
 void parse_options(int argc, const char **argv, struct parsed_params *params)
@@ -21,7 +24,7 @@ void parse_options(int argc, const char **argv, struct parsed_params *params)
        assert(!params->msg);
 
        for (;;) {
-               int opt = getopt(argc, (char **) argv, "b:p:t:h");
+               int opt = getopt(argc, (char **) argv, "b:p:t:hc:s");
                if (opt < 0)
                        break;
 
@@ -38,6 +41,12 @@ void parse_options(int argc, const char **argv, struct parsed_params *params)
                case 'h':
                        params->help = 1;
                        return;
+               case 'c':
+                       params->count = atoi(optarg);
+                       break;
+               case 's':
+                       params->print_stats = true;
+                       break;
                default:
                        break;
                }
@@ -51,12 +60,26 @@ void parse_options(int argc, const char **argv, struct parsed_params *params)
 
 void send_log(struct parsed_params *params)
 {
+       unsigned i;
+       struct timespec start, end;
+
        assert(params);
 
-       dlog_error_e ret = __dlog_print(params->buffer, params->priority, params->tag, "%s", params->msg);
-       if (ret != DLOG_ERROR_NONE) {
-               // Ignore for now because the API does not actually return DLOG_ERROR_NONE on success.
-               // printf("Log #%d: error %d\n", i, ret);
+       if (params->print_stats) {
+               clock_gettime(CLOCK_MONOTONIC, &start);
+       }
+
+       for (i = 0; i < params->count; ++i) {
+               dlog_error_e ret = __dlog_print(params->buffer, params->priority, params->tag, "%s", params->msg);
+               if (ret != DLOG_ERROR_NONE) {
+                       // Ignore for now because the API does not actually return DLOG_ERROR_NONE on success.
+                       // printf("Log #%d: error %d\n", i, ret);
+               }
+       }
+
+       if (params->print_stats) {
+               clock_gettime(CLOCK_MONOTONIC, &end);
+               printf("Sending log took %ld us\n", (end.tv_sec - start.tv_sec)*1000000 + (end.tv_nsec - start.tv_nsec) / 1000);
        }
 }
 
@@ -73,14 +96,18 @@ void print_help(const char *progname)
 {
        assert(progname);
 
-       printf("Usage: %s [-p priority] [-b buffer] [-t tag] message\n"
+       printf("Usage: %s [-p priority] [-b buffer] [-t tag] [-c number] [-s] [message]\n"
               "\t-p priority \tone of {Debug, Info, Warning, Error, Verbose, Fatal}\n"
               "\t            \tfirst letter is enough; defaults to Info\n"
               "\t-b buffer   \tone of {main, system, radio, apps, kmsg, syslog}\n"
               "\t            \tdefaults to main\n"
               "\t-t tag      \ta short identification string for identification and filtering purposes\n"
               "\t            \tcan be anything, defaults to DLOG_SEND\n"
-              "\t-h          \tshow this help\n",
+              "\t-c number   \tspecify how many times each message should be logged\n"
+              "\t-s          \tcollect and print statistics\n"
+              "\t-h          \tshow this help\n"
+              "\tmessage     \tmessage for logging; if not specified, each line from standard input\n"
+              "\t            \tis logged separately until EOF\n",
               progname);
 }
 
@@ -91,7 +118,9 @@ int main(int argc, const char **argv)
                .priority = DLOG_INFO,
                .help     = 0,
                .tag      = "DLOG_SEND",
-               .msg      = NULL
+               .msg      = NULL,
+               .count    = 1,
+               .print_stats = false
        };
        parse_options(argc, argv, &params);
        if (!params.msg) {