mirror of
https://github.com/git/git
synced 2024-11-05 18:59:29 +00:00
5b2d1c0c6e
Polishing of the new trace2 facility continues. The system-level configuration can specify site-wide trace2 settings, which can be overridden with per-user configuration and environment variables. * jh/trace2-sid-fix: trace2: fixup access problem on /etc/gitconfig in read_very_early_config trace2: update docs to describe system/global config settings trace2: make SIDs more unique trace2: clarify UTC datetime formatting trace2: report peak memory usage of the process trace2: use system/global config for default trace2 settings config: add read_very_early_config() trace2: find exec-dir before trace2 initialization trace2: add absolute elapsed time to start event trace2: refactor setting process starting time config: initialize opts structure in repo_read_config()
591 lines
16 KiB
C
591 lines
16 KiB
C
#include "cache.h"
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#include "config.h"
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#include "json-writer.h"
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#include "run-command.h"
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#include "version.h"
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#include "trace2/tr2_dst.h"
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#include "trace2/tr2_tbuf.h"
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#include "trace2/tr2_sid.h"
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#include "trace2/tr2_sysenv.h"
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#include "trace2/tr2_tgt.h"
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#include "trace2/tr2_tls.h"
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static struct tr2_dst tr2dst_event = { TR2_SYSENV_EVENT, 0, 0, 0 };
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/*
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* The version number of the JSON data generated by the EVENT target
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* in this source file. Update this if you make a significant change
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* to the JSON fields or message structure. You probably do not need
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* to update this if you just add another call to one of the existing
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* TRACE2 API methods.
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*/
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#define TR2_EVENT_VERSION "1"
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/*
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* Region nesting limit for messages written to the event target.
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*
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* The "region_enter" and "region_leave" messages (especially recursive
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* messages such as those produced while diving the worktree or index)
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* are primarily intended for the performance target during debugging.
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*
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* Some of the outer-most messages, however, may be of interest to the
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* event target. Use the TR2_SYSENV_EVENT_NESTING setting to increase
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* region details in the event target.
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*/
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static int tr2env_event_max_nesting_levels = 2;
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/*
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* Use the TR2_SYSENV_EVENT_BRIEF to omit the <time>, <file>, and
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* <line> fields from most events.
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*/
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static int tr2env_event_be_brief;
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static int fn_init(void)
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{
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int want = tr2_dst_trace_want(&tr2dst_event);
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int max_nesting;
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int want_brief;
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const char *nesting;
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const char *brief;
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if (!want)
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return want;
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nesting = tr2_sysenv_get(TR2_SYSENV_EVENT_NESTING);
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if (nesting && *nesting && ((max_nesting = atoi(nesting)) > 0))
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tr2env_event_max_nesting_levels = max_nesting;
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brief = tr2_sysenv_get(TR2_SYSENV_EVENT_BRIEF);
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if (brief && *brief &&
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((want_brief = git_parse_maybe_bool(brief)) != -1))
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tr2env_event_be_brief = want_brief;
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return want;
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}
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static void fn_term(void)
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{
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tr2_dst_trace_disable(&tr2dst_event);
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}
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/*
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* Append common key-value pairs to the currently open JSON object.
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* "event:"<event_name>"
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* "sid":"<sid>"
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* "thread":"<thread_name>"
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* "time":"<time>"
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* "file":"<filename>"
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* "line":<line_number>
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* "repo":<repo_id>
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*/
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static void event_fmt_prepare(const char *event_name, const char *file,
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int line, const struct repository *repo,
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struct json_writer *jw)
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{
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struct tr2tls_thread_ctx *ctx = tr2tls_get_self();
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struct tr2_tbuf tb_now;
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jw_object_string(jw, "event", event_name);
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jw_object_string(jw, "sid", tr2_sid_get());
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jw_object_string(jw, "thread", ctx->thread_name.buf);
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/*
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* In brief mode, only emit <time> on these 2 event types.
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*/
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if (!tr2env_event_be_brief || !strcmp(event_name, "version") ||
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!strcmp(event_name, "atexit")) {
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tr2_tbuf_utc_datetime_extended(&tb_now);
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jw_object_string(jw, "time", tb_now.buf);
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}
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if (!tr2env_event_be_brief && file && *file) {
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jw_object_string(jw, "file", file);
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jw_object_intmax(jw, "line", line);
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}
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if (repo)
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jw_object_intmax(jw, "repo", repo->trace2_repo_id);
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}
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static void fn_version_fl(const char *file, int line)
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{
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const char *event_name = "version";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_string(&jw, "evt", TR2_EVENT_VERSION);
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jw_object_string(&jw, "exe", git_version_string);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_start_fl(const char *file, int line,
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uint64_t us_elapsed_absolute, const char **argv)
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{
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const char *event_name = "start";
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struct json_writer jw = JSON_WRITER_INIT;
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double t_abs = (double)us_elapsed_absolute / 1000000.0;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_double(&jw, "t_abs", 6, t_abs);
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jw_object_inline_begin_array(&jw, "argv");
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jw_array_argv(&jw, argv);
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jw_end(&jw);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_exit_fl(const char *file, int line, uint64_t us_elapsed_absolute,
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int code)
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{
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const char *event_name = "exit";
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struct json_writer jw = JSON_WRITER_INIT;
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double t_abs = (double)us_elapsed_absolute / 1000000.0;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_double(&jw, "t_abs", 6, t_abs);
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jw_object_intmax(&jw, "code", code);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_signal(uint64_t us_elapsed_absolute, int signo)
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{
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const char *event_name = "signal";
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struct json_writer jw = JSON_WRITER_INIT;
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double t_abs = (double)us_elapsed_absolute / 1000000.0;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, __FILE__, __LINE__, NULL, &jw);
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jw_object_double(&jw, "t_abs", 6, t_abs);
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jw_object_intmax(&jw, "signo", signo);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_atexit(uint64_t us_elapsed_absolute, int code)
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{
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const char *event_name = "atexit";
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struct json_writer jw = JSON_WRITER_INIT;
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double t_abs = (double)us_elapsed_absolute / 1000000.0;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, __FILE__, __LINE__, NULL, &jw);
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jw_object_double(&jw, "t_abs", 6, t_abs);
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jw_object_intmax(&jw, "code", code);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void maybe_add_string_va(struct json_writer *jw, const char *field_name,
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const char *fmt, va_list ap)
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{
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if (fmt && *fmt) {
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va_list copy_ap;
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struct strbuf buf = STRBUF_INIT;
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va_copy(copy_ap, ap);
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strbuf_vaddf(&buf, fmt, copy_ap);
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va_end(copy_ap);
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jw_object_string(jw, field_name, buf.buf);
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strbuf_release(&buf);
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return;
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}
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if (fmt && *fmt) {
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jw_object_string(jw, field_name, fmt);
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return;
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}
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}
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static void fn_error_va_fl(const char *file, int line, const char *fmt,
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va_list ap)
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{
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const char *event_name = "error";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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maybe_add_string_va(&jw, "msg", fmt, ap);
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/*
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* Also emit the format string as a field in case
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* post-processors want to aggregate common error
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* messages by type without argument fields (such
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* as pathnames or branch names) cluttering it up.
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*/
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if (fmt && *fmt)
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jw_object_string(&jw, "fmt", fmt);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_command_path_fl(const char *file, int line, const char *pathname)
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{
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const char *event_name = "cmd_path";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_string(&jw, "path", pathname);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_command_name_fl(const char *file, int line, const char *name,
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const char *hierarchy)
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{
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const char *event_name = "cmd_name";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_string(&jw, "name", name);
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if (hierarchy && *hierarchy)
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jw_object_string(&jw, "hierarchy", hierarchy);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_command_mode_fl(const char *file, int line, const char *mode)
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{
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const char *event_name = "cmd_mode";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_string(&jw, "name", mode);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_alias_fl(const char *file, int line, const char *alias,
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const char **argv)
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{
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const char *event_name = "alias";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_string(&jw, "alias", alias);
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jw_object_inline_begin_array(&jw, "argv");
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jw_array_argv(&jw, argv);
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jw_end(&jw);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_child_start_fl(const char *file, int line,
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uint64_t us_elapsed_absolute,
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const struct child_process *cmd)
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{
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const char *event_name = "child_start";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_intmax(&jw, "child_id", cmd->trace2_child_id);
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if (cmd->trace2_hook_name) {
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jw_object_string(&jw, "child_class", "hook");
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jw_object_string(&jw, "hook_name", cmd->trace2_hook_name);
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} else {
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const char *child_class =
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cmd->trace2_child_class ? cmd->trace2_child_class : "?";
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jw_object_string(&jw, "child_class", child_class);
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}
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if (cmd->dir)
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jw_object_string(&jw, "cd", cmd->dir);
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jw_object_bool(&jw, "use_shell", cmd->use_shell);
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jw_object_inline_begin_array(&jw, "argv");
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if (cmd->git_cmd)
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jw_array_string(&jw, "git");
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jw_array_argv(&jw, cmd->argv);
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jw_end(&jw);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_child_exit_fl(const char *file, int line,
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uint64_t us_elapsed_absolute, int cid, int pid,
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int code, uint64_t us_elapsed_child)
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{
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const char *event_name = "child_exit";
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struct json_writer jw = JSON_WRITER_INIT;
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double t_rel = (double)us_elapsed_child / 1000000.0;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_intmax(&jw, "child_id", cid);
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jw_object_intmax(&jw, "pid", pid);
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jw_object_intmax(&jw, "code", code);
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jw_object_double(&jw, "t_rel", 6, t_rel);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_thread_start_fl(const char *file, int line,
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uint64_t us_elapsed_absolute)
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{
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const char *event_name = "thread_start";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_thread_exit_fl(const char *file, int line,
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uint64_t us_elapsed_absolute,
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uint64_t us_elapsed_thread)
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{
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const char *event_name = "thread_exit";
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struct json_writer jw = JSON_WRITER_INIT;
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double t_rel = (double)us_elapsed_thread / 1000000.0;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_double(&jw, "t_rel", 6, t_rel);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_exec_fl(const char *file, int line, uint64_t us_elapsed_absolute,
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int exec_id, const char *exe, const char **argv)
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{
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const char *event_name = "exec";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_intmax(&jw, "exec_id", exec_id);
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if (exe)
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jw_object_string(&jw, "exe", exe);
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jw_object_inline_begin_array(&jw, "argv");
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jw_array_argv(&jw, argv);
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jw_end(&jw);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_exec_result_fl(const char *file, int line,
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uint64_t us_elapsed_absolute, int exec_id,
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int code)
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{
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const char *event_name = "exec_result";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_intmax(&jw, "exec_id", exec_id);
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jw_object_intmax(&jw, "code", code);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_param_fl(const char *file, int line, const char *param,
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const char *value)
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{
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const char *event_name = "def_param";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, NULL, &jw);
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jw_object_string(&jw, "param", param);
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jw_object_string(&jw, "value", value);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_repo_fl(const char *file, int line,
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const struct repository *repo)
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{
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const char *event_name = "def_repo";
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struct json_writer jw = JSON_WRITER_INIT;
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jw_object_begin(&jw, 0);
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event_fmt_prepare(event_name, file, line, repo, &jw);
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jw_object_string(&jw, "worktree", repo->worktree);
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jw_end(&jw);
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tr2_dst_write_line(&tr2dst_event, &jw.json);
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jw_release(&jw);
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}
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static void fn_region_enter_printf_va_fl(const char *file, int line,
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uint64_t us_elapsed_absolute,
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const char *category,
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const char *label,
|
|
const struct repository *repo,
|
|
const char *fmt, va_list ap)
|
|
{
|
|
const char *event_name = "region_enter";
|
|
struct tr2tls_thread_ctx *ctx = tr2tls_get_self();
|
|
if (ctx->nr_open_regions <= tr2env_event_max_nesting_levels) {
|
|
struct json_writer jw = JSON_WRITER_INIT;
|
|
|
|
jw_object_begin(&jw, 0);
|
|
event_fmt_prepare(event_name, file, line, repo, &jw);
|
|
jw_object_intmax(&jw, "nesting", ctx->nr_open_regions);
|
|
if (category)
|
|
jw_object_string(&jw, "category", category);
|
|
if (label)
|
|
jw_object_string(&jw, "label", label);
|
|
maybe_add_string_va(&jw, "msg", fmt, ap);
|
|
jw_end(&jw);
|
|
|
|
tr2_dst_write_line(&tr2dst_event, &jw.json);
|
|
jw_release(&jw);
|
|
}
|
|
}
|
|
|
|
static void fn_region_leave_printf_va_fl(
|
|
const char *file, int line, uint64_t us_elapsed_absolute,
|
|
uint64_t us_elapsed_region, const char *category, const char *label,
|
|
const struct repository *repo, const char *fmt, va_list ap)
|
|
{
|
|
const char *event_name = "region_leave";
|
|
struct tr2tls_thread_ctx *ctx = tr2tls_get_self();
|
|
if (ctx->nr_open_regions <= tr2env_event_max_nesting_levels) {
|
|
struct json_writer jw = JSON_WRITER_INIT;
|
|
double t_rel = (double)us_elapsed_region / 1000000.0;
|
|
|
|
jw_object_begin(&jw, 0);
|
|
event_fmt_prepare(event_name, file, line, repo, &jw);
|
|
jw_object_double(&jw, "t_rel", 6, t_rel);
|
|
jw_object_intmax(&jw, "nesting", ctx->nr_open_regions);
|
|
if (category)
|
|
jw_object_string(&jw, "category", category);
|
|
if (label)
|
|
jw_object_string(&jw, "label", label);
|
|
maybe_add_string_va(&jw, "msg", fmt, ap);
|
|
jw_end(&jw);
|
|
|
|
tr2_dst_write_line(&tr2dst_event, &jw.json);
|
|
jw_release(&jw);
|
|
}
|
|
}
|
|
|
|
static void fn_data_fl(const char *file, int line, uint64_t us_elapsed_absolute,
|
|
uint64_t us_elapsed_region, const char *category,
|
|
const struct repository *repo, const char *key,
|
|
const char *value)
|
|
{
|
|
const char *event_name = "data";
|
|
struct tr2tls_thread_ctx *ctx = tr2tls_get_self();
|
|
if (ctx->nr_open_regions <= tr2env_event_max_nesting_levels) {
|
|
struct json_writer jw = JSON_WRITER_INIT;
|
|
double t_abs = (double)us_elapsed_absolute / 1000000.0;
|
|
double t_rel = (double)us_elapsed_region / 1000000.0;
|
|
|
|
jw_object_begin(&jw, 0);
|
|
event_fmt_prepare(event_name, file, line, repo, &jw);
|
|
jw_object_double(&jw, "t_abs", 6, t_abs);
|
|
jw_object_double(&jw, "t_rel", 6, t_rel);
|
|
jw_object_intmax(&jw, "nesting", ctx->nr_open_regions);
|
|
jw_object_string(&jw, "category", category);
|
|
jw_object_string(&jw, "key", key);
|
|
jw_object_string(&jw, "value", value);
|
|
jw_end(&jw);
|
|
|
|
tr2_dst_write_line(&tr2dst_event, &jw.json);
|
|
jw_release(&jw);
|
|
}
|
|
}
|
|
|
|
static void fn_data_json_fl(const char *file, int line,
|
|
uint64_t us_elapsed_absolute,
|
|
uint64_t us_elapsed_region, const char *category,
|
|
const struct repository *repo, const char *key,
|
|
const struct json_writer *value)
|
|
{
|
|
const char *event_name = "data_json";
|
|
struct tr2tls_thread_ctx *ctx = tr2tls_get_self();
|
|
if (ctx->nr_open_regions <= tr2env_event_max_nesting_levels) {
|
|
struct json_writer jw = JSON_WRITER_INIT;
|
|
double t_abs = (double)us_elapsed_absolute / 1000000.0;
|
|
double t_rel = (double)us_elapsed_region / 1000000.0;
|
|
|
|
jw_object_begin(&jw, 0);
|
|
event_fmt_prepare(event_name, file, line, repo, &jw);
|
|
jw_object_double(&jw, "t_abs", 6, t_abs);
|
|
jw_object_double(&jw, "t_rel", 6, t_rel);
|
|
jw_object_intmax(&jw, "nesting", ctx->nr_open_regions);
|
|
jw_object_string(&jw, "category", category);
|
|
jw_object_string(&jw, "key", key);
|
|
jw_object_sub_jw(&jw, "value", value);
|
|
jw_end(&jw);
|
|
|
|
tr2_dst_write_line(&tr2dst_event, &jw.json);
|
|
jw_release(&jw);
|
|
}
|
|
}
|
|
|
|
struct tr2_tgt tr2_tgt_event = {
|
|
&tr2dst_event,
|
|
|
|
fn_init,
|
|
fn_term,
|
|
|
|
fn_version_fl,
|
|
fn_start_fl,
|
|
fn_exit_fl,
|
|
fn_signal,
|
|
fn_atexit,
|
|
fn_error_va_fl,
|
|
fn_command_path_fl,
|
|
fn_command_name_fl,
|
|
fn_command_mode_fl,
|
|
fn_alias_fl,
|
|
fn_child_start_fl,
|
|
fn_child_exit_fl,
|
|
fn_thread_start_fl,
|
|
fn_thread_exit_fl,
|
|
fn_exec_fl,
|
|
fn_exec_result_fl,
|
|
fn_param_fl,
|
|
fn_repo_fl,
|
|
fn_region_enter_printf_va_fl,
|
|
fn_region_leave_printf_va_fl,
|
|
fn_data_fl,
|
|
fn_data_json_fl,
|
|
NULL, /* printf */
|
|
};
|