diff options
author | Costa Tsaousis <costa@netdata.cloud> | 2023-11-22 08:27:25 +0000 |
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committer | GitHub <noreply@github.com> | 2023-11-22 10:27:25 +0200 |
commit | 3e508c8f95ab0bdf8b6d74501437210d7b8d2919 (patch) | |
tree | 965caf50e73854f638bc9fbc4aebfbd4690619e5 /libnetdata/datetime/iso8601.c | |
parent | 8f31356a0c0cb5956b9a31ffd5abb45d85de1656 (diff) |
New logging layer (#16357)
* cleanup of logging - wip
* first working iteration
* add errno annotator
* replace old logging functions with netdata_logger()
* cleanup
* update error_limit
* fix remanining error_limit references
* work on fatal()
* started working on structured logs
* full cleanup
* default logging to files; fix all plugins initialization
* fix formatting of numbers
* cleanup and reorg
* fix coverity issues
* cleanup obsolete code
* fix formatting of numbers
* fix log rotation
* fix for older systems
* add detection of systemd journal via stderr
* finished on access.log
* remove left-over transport
* do not add empty fields to the logs
* journal get compact uuids; X-Transaction-ID header is added in web responses
* allow compiling on systems without memfd sealing
* added libnetdata/uuid directory
* move datetime formatters to libnetdata
* add missing files
* link the makefiles in libnetdata
* added uuid_parse_flexi() to parse UUIDs with and without hyphens; the web server now read X-Transaction-ID and uses it for functions and web responses
* added stream receiver, sender, proc plugin and pluginsd log stack
* iso8601 advanced usage; line_splitter module in libnetdata; code cleanup
* add message ids to streaming inbound and outbound connections
* cleanup line_splitter between lines to avoid logging garbage; when killing children, kill them with SIGABRT if internal checks is enabled
* send SIGABRT to external plugins only if we are not shutting down
* fix cross cleanup in pluginsd parser
* fatal when there is a stack error in logs
* compile netdata with -fexceptions
* do not kill external plugins with SIGABRT
* metasync info logs to debug level
* added severity to logs
* added json output; added options per log output; added documentation; fixed issues mentioned
* allow memfd only on linux
* moved journal low level functions to journal.c/h
* move health logs to daemon.log with proper priorities
* fixed a couple of bugs; health log in journal
* updated docs
* systemd-cat-native command to push structured logs to journal from the command line
* fix makefiles
* restored NETDATA_LOG_SEVERITY_LEVEL
* fix makefiles
* systemd-cat-native can also work as the logger of Netdata scripts
* do not require a socket to systemd-journal to log-as-netdata
* alarm notify logs in native format
* properly compare log ids
* fatals log alerts; alarm-notify.sh working
* fix overflow warning
* alarm-notify.sh now logs the request (command line)
* anotate external plugins logs with the function cmd they run
* added context, component and type to alarm-notify.sh; shell sanitization removes control character and characters that may be expanded by bash
* reformatted alarm-notify logs
* unify cgroup-network-helper.sh
* added quotes around params
* charts.d.plugin switched logging to journal native
* quotes for logfmt
* unify the status codes of streaming receivers and senders
* alarm-notify: dont log anything, if there is nothing to do
* all external plugins log to stderr when running outside netdata; alarm-notify now shows an error when notifications menthod are needed but are not available
* migrate cgroup-name.sh to new logging
* systemd-cat-native now supports messages with newlines
* socket.c logs use priority
* cleanup log field types
* inherit the systemd set INVOCATION_ID if found
* allow systemd-cat-native to send messages to a systemd-journal-remote URL
* log2journal command that can convert structured logs to journal export format
* various fixes and documentation of log2journal
* updated log2journal docs
* updated log2journal docs
* updated documentation of fields
* allow compiling without libcurl
* do not use socket as format string
* added version information to newly added tools
* updated documentation and help messages
* fix the namespace socket path
* print errno with error
* do not timeout
* updated docs
* updated docs
* updated docs
* log2journal updated docs and params
* when talking to a remote journal, systemd-cat-native batches the messages
* enable lz4 compression for systemd-cat-native when sending messages to a systemd-journal-remote
* Revert "enable lz4 compression for systemd-cat-native when sending messages to a systemd-journal-remote"
This reverts commit b079d53c11f6687cd64d804fdd7b24c0492bf245.
* note about uncompressed traffic
* log2journal: code reorg and cleanup to make modular
* finished rewriting log2journal
* more comments
* rewriting rules support
* increased limits
* updated docs
* updated docs
* fix old log call
* use journal only when stderr is connected to journal
* update netdata.spec for libcurl, libpcre2 and log2journal
* pcre2-devel
* do not require pcre2 in centos < 8, amazonlinux < 2023, open suse
* log2journal only on systems pcre2 is available
* ignore log2journal in .gitignore
* avoid log2journal on centos 7, amazonlinux 2 and opensuse
* add pcre2-8 to static build
* undo last commit
* Bundle to static
Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
* Add build deps for deb packages
Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
* Add dependencies; build from source
Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
* Test build for amazon linux and centos expect to fail for suse
Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
* fix minor oversight
Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
* Reorg code
* Add the install from source (deps) as a TODO
* Not enable the build on suse ecosystem
Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
---------
Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
Co-authored-by: Tasos Katsoulas <tasos@netdata.cloud>
Diffstat (limited to 'libnetdata/datetime/iso8601.c')
-rw-r--r-- | libnetdata/datetime/iso8601.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/libnetdata/datetime/iso8601.c b/libnetdata/datetime/iso8601.c new file mode 100644 index 0000000000..8e3f4e0276 --- /dev/null +++ b/libnetdata/datetime/iso8601.c @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "../libnetdata.h" + +size_t iso8601_datetime_ut(char *buffer, size_t len, usec_t now_ut, ISO8601_OPTIONS options) { + if(unlikely(!buffer || len == 0)) + return 0; + + time_t t = (time_t)(now_ut / USEC_PER_SEC); + struct tm *tmp, tmbuf; + + if(options & ISO8601_UTC) + // Use gmtime_r for UTC time conversion. + tmp = gmtime_r(&t, &tmbuf); + else + // Use localtime_r for local time conversion. + tmp = localtime_r(&t, &tmbuf); + + if (unlikely(!tmp)) { + buffer[0] = '\0'; + return 0; + } + + // Format the date and time according to the ISO 8601 format. + size_t used_length = strftime(buffer, len, "%Y-%m-%dT%H:%M:%S", tmp); + if (unlikely(used_length == 0)) { + buffer[0] = '\0'; + return 0; + } + + if(options & ISO8601_MILLISECONDS) { + // Calculate the remaining microseconds + int milliseconds = (int) ((now_ut % USEC_PER_SEC) / USEC_PER_MS); + if(milliseconds && len - used_length > 4) + used_length += snprintfz(buffer + used_length, len - used_length, ".%03d", milliseconds); + } + else if(options & ISO8601_MICROSECONDS) { + // Calculate the remaining microseconds + int microseconds = (int) (now_ut % USEC_PER_SEC); + if(microseconds && len - used_length > 7) + used_length += snprintfz(buffer + used_length, len - used_length, ".%06d", microseconds); + } + + if(options & ISO8601_UTC) { + if(used_length + 1 < len) { + buffer[used_length++] = 'Z'; + buffer[used_length] = '\0'; // null-terminate the string. + } + } + else { + // Calculate the timezone offset in hours and minutes from UTC. + long offset = tmbuf.tm_gmtoff; + int hours = (int) (offset / 3600); // Convert offset seconds to hours. + int minutes = (int) ((offset % 3600) / 60); // Convert remainder to minutes (keep the sign for minutes). + + // Check if timezone is UTC. + if(hours == 0 && minutes == 0) { + // For UTC, append 'Z' to the timestamp. + if(used_length + 1 < len) { + buffer[used_length++] = 'Z'; + buffer[used_length] = '\0'; // null-terminate the string. + } + } + else { + // For non-UTC, format the timezone offset. Omit minutes if they are zero. + if(minutes == 0) { + // Check enough space is available for the timezone offset string. + if(used_length + 3 < len) // "+hh\0" + used_length += snprintfz(buffer + used_length, len - used_length, "%+03d", hours); + } + else { + // Check enough space is available for the timezone offset string. + if(used_length + 6 < len) // "+hh:mm\0" + used_length += snprintfz(buffer + used_length, len - used_length, + "%+03d:%02d", hours, abs(minutes)); + } + } + } + + return used_length; +} |