Have extra 20ms delay after every 16th read entry

[glucose] / main.c

diff --git a/main.c b/main.c
index f0faa447d5bf6b8d0fd96c77387e667b36cffd5f..442154b17022a31cbbada5ee10d2865d7174e64f 100644 (file)
--- a/main.c
+++ b/main.c
@@ -107,6 +107,7 @@ static int dump_entries(struct user_options *opts, int fd, int usage_code)
        struct msg msg;
        int ret;
        int entries = 0;
+       int extra_delay = 0;
 
        trace(0, "Reading data ...\n");
        if (opts->output_format == CSV)
@@ -115,7 +116,7 @@ static int dump_entries(struct user_options *opts, int fd, int usage_code)
                        "Activity,\"Control test\"\n");
 
        while (1) {
-               ret = contour_read_entry(fd, usage_code, &msg);
+               ret = contour_read_entry(fd, usage_code, &msg, extra_delay);
                if (ret < 45)
                        break;
 
@@ -125,6 +126,18 @@ static int dump_entries(struct user_options *opts, int fd, int usage_code)
 
                entries++;
 
+               /*
+                * Add 20ms magic sleep. This is needed especially for
+                * meters that have reached the internal limit of 2000
+                * glucose readings. We don't want to delay any other
+                * reads as it appears to be needed only for every
+                * 16th read.
+                */
+               if (!(entries % 16))
+                       extra_delay = 20;
+               else
+                       extra_delay = 0;
+
                if ((opts->outf != stdout) || !isatty(fileno(stdout))) {
                        trace(0, "\r%d entries", entries);
                        fflush(stdout);