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mdbx-tools: rework mdbx_reader_list() & mdbx_stat.

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Change-Id: I0524cad93ca439e74eba9486cbcbeacf4253dd84
This commit is contained in:
Leonid Yuriev
2019-09-19 00:54:03 +03:00
parent 2f2df1ee76
commit 7c39c16829
3 changed files with 119 additions and 49 deletions
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44
src/tools/mdbx_stat.c
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@@ -59,6 +59,27 @@ static void usage(char *prog) {
exit(EXIT_FAILURE);
}
static int reader_list_func(void *ctx, int num, int slot, mdbx_pid_t pid,
mdbx_tid_t thread, uint64_t txnid, uint64_t lag,
size_t bytes_used, size_t bytes_retired) {
(void)ctx;
if (num == 1)
printf("Reader Table Status\n"
" #\tslot\t%6s %*s %20s %10s %13s %13s\n",
"pid", (int)sizeof(size_t) * 2, "thread", "txnid", "lag", "used",
"retained");
printf(" %3d)\t[%d]\t%6" PRIdSIZE " %*" PRIxSIZE, num, slot, (size_t)pid,
(int)sizeof(size_t) * 2, (size_t)thread);
if (txnid)
printf(" %20" PRIu64 " %10" PRIu64 " %12.1fM %12.1fM\n", txnid, lag,
bytes_used / 1048576.0, bytes_retired / 1048576.0);
else
printf(" %20s %10s %13s %13s\n", "-", "0", "0", "0");
return user_break ? MDBX_RESULT_TRUE : MDBX_RESULT_FALSE;
}
int main(int argc, char *argv[]) {
int o, rc;
MDBX_env *env;
@@ -206,13 +227,24 @@ int main(int argc, char *argv[]) {
}
if (rdrinfo) {
printf("Reader Table Status\n");
rc = mdbx_reader_list(env, (MDBX_msg_func *)fputs, stdout);
if (rdrinfo > 1) {
rc = mdbx_reader_list(env, reader_list_func, nullptr);
if (rc == MDBX_RESULT_TRUE)
printf("Reader Table is empty\n");
else if (rc == MDBX_SUCCESS && rdrinfo > 1) {
int dead;
mdbx_reader_check(env, &dead);
printf(" %d stale readers cleared.\n", dead);
rc = mdbx_reader_list(env, (MDBX_msg_func *)fputs, stdout);
rc = mdbx_reader_check(env, &dead);
if (rc == MDBX_RESULT_TRUE) {
printf(" %d stale readers cleared.\n", dead);
rc = mdbx_reader_list(env, reader_list_func, nullptr);
if (rc == MDBX_RESULT_TRUE)
printf(" Now Reader Table is empty\n");
} else
printf(" No stale readers.\n");
}
if (MDBX_IS_ERROR(rc)) {
fprintf(stderr, "mdbx_txn_begin failed, error %d %s\n", rc,
mdbx_strerror(rc));
goto env_close;
}
if (!(subname || alldbs || freinfo))
goto env_close;