diff options
| author | Garrett D'Amore <garrett@damore.org> | 2024-10-15 20:31:04 -0700 |
|---|---|---|
| committer | Garrett D'Amore <garrett@damore.org> | 2024-10-15 20:31:04 -0700 |
| commit | 4c83442e174b186f5ee22bc8744cc7cc2a890e13 (patch) | |
| tree | 515c5c1b9be97cf876b32bd5359f88ecc7e1aa8a /docs/man/nng_stats_get.3.adoc | |
| parent | cc13903167e540c0e306ed7faa0b58a8bcd12066 (diff) | |
| download | nng-4c83442e174b186f5ee22bc8744cc7cc2a890e13.tar.gz nng-4c83442e174b186f5ee22bc8744cc7cc2a890e13.tar.bz2 nng-4c83442e174b186f5ee22bc8744cc7cc2a890e13.zip | |
Stats API converted to mdbook.
A number of small errors were fixed, and we tried to restructure
this to be a bit more usable to readers.
Diffstat (limited to 'docs/man/nng_stats_get.3.adoc')
| -rw-r--r-- | docs/man/nng_stats_get.3.adoc | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/docs/man/nng_stats_get.3.adoc b/docs/man/nng_stats_get.3.adoc deleted file mode 100644 index 5cbb2624..00000000 --- a/docs/man/nng_stats_get.3.adoc +++ /dev/null @@ -1,86 +0,0 @@ -= nng_stats_get(3) -// -// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech> -// Copyright 2018 Capitar IT Group BV <info@capitar.com> -// -// This document is supplied under the terms of the MIT License, a -// copy of which should be located in the distribution where this -// file was obtained (LICENSE.txt). A copy of the license may also be -// found online at https://opensource.org/licenses/MIT. -// - -== NAME - -nng_stats_get - get statistics snapshot - -== SYNOPSIS - -[source, c] ----- -#include <nng/nng.h> - -typedef struct nng_stat nng_stat; - -int nng_stats_get(nng_stat **statsp) ----- - -== DESCRIPTION - -The `nng_stat_get()` function attempts to obtain a snapshot of all the -various diagnostic statistics that are present in the system. - -NOTE: The process of collecting statistics is designed to have minimal -impact on the system, but there is still some impact. - -The statistics are organized as a tree, rooted with a parent -statistic of type `NNG_STAT_SCOPE` that carries no value, and which -has an empty name. -This parent statistic is returned through the _statsp_ pointer. - -The xref:nng_stat_child.3.adoc[`nng_stat_child()`] and -xref:nng_stat_next.3.adoc[`nng_stat_next()`] function can be used to -iterate over the the tree. - -When no longer needed, the statistics can be freed with the -xref:nng_stats_free.3.adoc[`nng_stats_free()`] function, but that -function must be called only with the root statistic that is returned -through the _statsp_ pointer. - -NOTE: The values of individual statistics are guaranteed to be atomic, -but due the way statistics are collected there can be discrepancies between them at certain times. -For example, statistics counting bytes and messages received may not -reflect the same number of messages, depending on when the snapshot is taken. -This potential inconsistency arises as a result of optimizations to minimize -the impact of statistics on actual operations. - -NOTE: The names, values, and semantics of statistics provided may change -from release to release. -These are provided for informational and debugging use only, and applications -should not rely on the presence, names, or meanings of any individual statistics. - -== RETURN VALUES - -This function returns a pointer to the allocated memory on success, -and `NULL` otherwise. - -== ERRORS - -[horizontal] -`NNG_ENOMEM`:: Insufficient free memory to collect statistics. -`NNG_ENOTSUP`:: Statistics are not supported (compile time option). - -== SEE ALSO - -[.text-left] -xref:nng_stats_free.3.adoc[nng_stats_free(3)], -xref:nng_stat_child.3.adoc[nng_stat_child(3)], -xref:nng_stat_desc.3.adoc[nng_stat_desc(3)], -xref:nng_stat_name.3.adoc[nng_stat_name(3)], -xref:nng_stat_next.3.adoc[nng_stat_next(3)], -xref:nng_stat_string.3.adoc[nng_stat_string(3)], -xref:nng_stat_type.3.adoc[nng_stat_type(3)], -xref:nng_stat_timestamp.3.adoc[nng_stat_timestamp(3)], -xref:nng_stat_unit.3.adoc[nng_stat_unit(3)], -xref:nng_stat_value.3.adoc[nng_stat_value(3)], -xref:nng_stat.5.adoc[nng_stat(5)], -xref:nng.7.adoc[nng(7)] |
