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![Glen Choo](/assets/img/avatar_default.png)
There is a code path starting from trace2_def_param_fl() that eventually calls current_config_scope(), and thus it needs to have "kvi" plumbed through it. Additional plumbing is also needed to get "kvi" to trace2_def_param_fl(), which gets called by two code paths: - Through tr2_cfg_cb(), which is a config callback, so it trivially receives "kvi" via the "struct config_context ctx" parameter. - Through tr2_list_env_vars_fl(), which is a high level function that lists environment variables for tracing. This has been secretly behaving like git_config_from_parameters() (in that it parses config from environment variables/the CLI), but does not set config source information. Teach tr2_list_env_vars_fl() to be well-behaved by using kvi_from_param(), which is used elsewhere for CLI/environment variable-based config. As a result, current_config_scope() has no more callers, so remove it. Signed-off-by: Glen Choo <chooglen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
632 lines
18 KiB
C
632 lines
18 KiB
C
#include "git-compat-util.h"
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#include "config.h"
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#include "repository.h"
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#include "run-command.h"
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#include "quote.h"
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#include "version.h"
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#include "json-writer.h"
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#include "trace2/tr2_dst.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_tbuf.h"
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#include "trace2/tr2_tgt.h"
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#include "trace2/tr2_tls.h"
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#include "trace2/tr2_tmr.h"
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static struct tr2_dst tr2dst_perf = {
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.sysenv_var = TR2_SYSENV_PERF,
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};
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/*
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* Use TR2_SYSENV_PERF_BRIEF to omit the "<time> <file>:<line>"
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* fields from each line written to the builtin performance target.
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*
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* Unit tests may want to use this to help with testing.
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*/
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static int tr2env_perf_be_brief;
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#define TR2FMT_PERF_FL_WIDTH (28)
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#define TR2FMT_PERF_MAX_EVENT_NAME (12)
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#define TR2FMT_PERF_REPO_WIDTH (3)
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#define TR2FMT_PERF_CATEGORY_WIDTH (12)
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#define TR2_INDENT (2)
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#define TR2_INDENT_LENGTH(ctx) (((ctx)->nr_open_regions - 1) * TR2_INDENT)
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static int fn_init(void)
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{
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int want = tr2_dst_trace_want(&tr2dst_perf);
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int want_brief;
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const char *brief;
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if (!want)
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return want;
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brief = tr2_sysenv_get(TR2_SYSENV_PERF_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_perf_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_perf);
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}
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/*
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* Format trace line prefix in human-readable classic format for
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* the performance target:
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* "[<time> [<file>:<line>] <bar>] <nr_parents> <bar>
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* <thread_name> <bar> <event_name> <bar> [<repo>] <bar>
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* [<elapsed_absolute>] [<elapsed_relative>] <bar>
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* [<category>] <bar> [<dots>] "
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*/
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static void perf_fmt_prepare(const char *event_name,
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struct tr2tls_thread_ctx *ctx, const char *file,
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int line, const struct repository *repo,
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uint64_t *p_us_elapsed_absolute,
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uint64_t *p_us_elapsed_relative,
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const char *category, struct strbuf *buf)
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{
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int len;
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strbuf_setlen(buf, 0);
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if (!tr2env_perf_be_brief) {
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struct tr2_tbuf tb_now;
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size_t fl_end_col;
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tr2_tbuf_local_time(&tb_now);
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strbuf_addstr(buf, tb_now.buf);
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strbuf_addch(buf, ' ');
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fl_end_col = buf->len + TR2FMT_PERF_FL_WIDTH;
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if (file && *file) {
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struct strbuf buf_fl = STRBUF_INIT;
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strbuf_addf(&buf_fl, "%s:%d", file, line);
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if (buf_fl.len <= TR2FMT_PERF_FL_WIDTH)
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strbuf_addbuf(buf, &buf_fl);
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else {
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size_t avail = TR2FMT_PERF_FL_WIDTH - 3;
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strbuf_addstr(buf, "...");
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strbuf_add(buf,
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&buf_fl.buf[buf_fl.len - avail],
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avail);
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}
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strbuf_release(&buf_fl);
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}
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while (buf->len < fl_end_col)
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strbuf_addch(buf, ' ');
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strbuf_addstr(buf, " | ");
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}
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strbuf_addf(buf, "d%d | ", tr2_sid_depth());
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strbuf_addf(buf, "%-*s | %-*s | ", TR2_MAX_THREAD_NAME,
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ctx->thread_name, TR2FMT_PERF_MAX_EVENT_NAME,
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event_name);
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len = buf->len + TR2FMT_PERF_REPO_WIDTH;
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if (repo)
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strbuf_addf(buf, "r%d ", repo->trace2_repo_id);
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while (buf->len < len)
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strbuf_addch(buf, ' ');
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strbuf_addstr(buf, " | ");
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if (p_us_elapsed_absolute)
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strbuf_addf(buf, "%9.6f | ",
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((double)(*p_us_elapsed_absolute)) / 1000000.0);
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else
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strbuf_addf(buf, "%9s | ", " ");
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if (p_us_elapsed_relative)
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strbuf_addf(buf, "%9.6f | ",
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((double)(*p_us_elapsed_relative)) / 1000000.0);
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else
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strbuf_addf(buf, "%9s | ", " ");
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strbuf_addf(buf, "%-*.*s | ", TR2FMT_PERF_CATEGORY_WIDTH,
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TR2FMT_PERF_CATEGORY_WIDTH, (category ? category : ""));
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if (ctx->nr_open_regions > 0)
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strbuf_addchars(buf, '.', TR2_INDENT_LENGTH(ctx));
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}
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static void perf_io_write_fl(const char *file, int line, const char *event_name,
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const struct repository *repo,
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uint64_t *p_us_elapsed_absolute,
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uint64_t *p_us_elapsed_relative,
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const char *category,
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const struct strbuf *buf_payload)
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{
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struct tr2tls_thread_ctx *ctx = tr2tls_get_self();
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struct strbuf buf_line = STRBUF_INIT;
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perf_fmt_prepare(event_name, ctx, file, line, repo,
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p_us_elapsed_absolute, p_us_elapsed_relative, category,
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&buf_line);
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strbuf_addbuf(&buf_line, buf_payload);
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tr2_dst_write_line(&tr2dst_perf, &buf_line);
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strbuf_release(&buf_line);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addstr(&buf_payload, git_version_string);
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perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
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&buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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sq_append_quote_argv_pretty(&buf_payload, argv);
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perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
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NULL, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addf(&buf_payload, "code:%d", code);
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perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
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NULL, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addf(&buf_payload, "signo:%d", signo);
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perf_io_write_fl(__FILE__, __LINE__, event_name, NULL,
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&us_elapsed_absolute, NULL, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addf(&buf_payload, "code:%d", code);
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perf_io_write_fl(__FILE__, __LINE__, event_name, NULL,
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&us_elapsed_absolute, NULL, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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}
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static void maybe_append_string_va(struct strbuf *buf, const char *fmt,
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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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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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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 strbuf buf_payload = STRBUF_INIT;
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maybe_append_string_va(&buf_payload, fmt, ap);
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perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
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&buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addstr(&buf_payload, pathname);
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perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
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&buf_payload);
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strbuf_release(&buf_payload);
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}
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static void fn_command_ancestry_fl(const char *file, int line, const char **parent_names)
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{
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const char *event_name = "cmd_ancestry";
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struct strbuf buf_payload = STRBUF_INIT;
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strbuf_addstr(&buf_payload, "ancestry:[");
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/* It's not an argv but the rules are basically the same. */
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sq_append_quote_argv_pretty(&buf_payload, parent_names);
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strbuf_addch(&buf_payload, ']');
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perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
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&buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addstr(&buf_payload, name);
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if (hierarchy && *hierarchy)
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strbuf_addf(&buf_payload, " (%s)", hierarchy);
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perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
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&buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addstr(&buf_payload, mode);
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perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
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&buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addf(&buf_payload, "alias:%s argv:[", alias);
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sq_append_quote_argv_pretty(&buf_payload, argv);
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strbuf_addch(&buf_payload, ']');
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perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
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&buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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if (cmd->trace2_hook_name) {
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strbuf_addf(&buf_payload, "[ch%d] class:hook hook:%s",
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cmd->trace2_child_id, 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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strbuf_addf(&buf_payload, "[ch%d] class:%s",
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cmd->trace2_child_id, child_class);
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}
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if (cmd->dir) {
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strbuf_addstr(&buf_payload, " cd:");
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sq_quote_buf_pretty(&buf_payload, cmd->dir);
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}
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strbuf_addstr(&buf_payload, " argv:[");
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if (cmd->git_cmd) {
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strbuf_addstr(&buf_payload, "git");
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if (cmd->args.nr)
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strbuf_addch(&buf_payload, ' ');
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}
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sq_append_quote_argv_pretty(&buf_payload, cmd->args.v);
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strbuf_addch(&buf_payload, ']');
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perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
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NULL, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addf(&buf_payload, "[ch%d] pid:%d code:%d", cid, pid, code);
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perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
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&us_elapsed_child, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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}
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static void fn_child_ready_fl(const char *file, int line,
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uint64_t us_elapsed_absolute, int cid, int pid,
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const char *ready, uint64_t us_elapsed_child)
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{
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const char *event_name = "child_ready";
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struct strbuf buf_payload = STRBUF_INIT;
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strbuf_addf(&buf_payload, "[ch%d] pid:%d ready:%s", cid, pid, ready);
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perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
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&us_elapsed_child, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
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NULL, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
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&us_elapsed_thread, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addf(&buf_payload, "id:%d ", exec_id);
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strbuf_addstr(&buf_payload, "argv:[");
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if (exe) {
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strbuf_addstr(&buf_payload, exe);
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if (argv[0])
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strbuf_addch(&buf_payload, ' ');
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}
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sq_append_quote_argv_pretty(&buf_payload, argv);
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strbuf_addch(&buf_payload, ']');
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perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
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NULL, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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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 strbuf buf_payload = STRBUF_INIT;
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strbuf_addf(&buf_payload, "id:%d code:%d", exec_id, code);
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if (code > 0)
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strbuf_addf(&buf_payload, " err:%s", strerror(code));
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perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
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NULL, NULL, &buf_payload);
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strbuf_release(&buf_payload);
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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, const struct key_value_info *kvi)
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{
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const char *event_name = "def_param";
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struct strbuf buf_payload = STRBUF_INIT;
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struct strbuf scope_payload = STRBUF_INIT;
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enum config_scope scope = kvi->scope;
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const char *scope_name = config_scope_name(scope);
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strbuf_addf(&buf_payload, "%s:%s", param, value);
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strbuf_addf(&scope_payload, "%s:%s", "scope", scope_name);
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perf_io_write_fl(file, line, event_name, NULL, NULL, NULL,
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scope_payload.buf, &buf_payload);
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strbuf_release(&buf_payload);
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strbuf_release(&scope_payload);
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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 strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addstr(&buf_payload, "worktree:");
|
|
sq_quote_buf_pretty(&buf_payload, repo->worktree);
|
|
|
|
perf_io_write_fl(file, line, event_name, repo, NULL, NULL, NULL,
|
|
&buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_region_enter_printf_va_fl(const char *file, int line,
|
|
uint64_t us_elapsed_absolute,
|
|
const char *category,
|
|
const char *label,
|
|
const struct repository *repo,
|
|
const char *fmt, va_list ap)
|
|
{
|
|
const char *event_name = "region_enter";
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
if (label)
|
|
strbuf_addf(&buf_payload, "label:%s", label);
|
|
if (fmt && *fmt) {
|
|
strbuf_addch(&buf_payload, ' ');
|
|
maybe_append_string_va(&buf_payload, fmt, ap);
|
|
}
|
|
|
|
perf_io_write_fl(file, line, event_name, repo, &us_elapsed_absolute,
|
|
NULL, category, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
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 strbuf buf_payload = STRBUF_INIT;
|
|
|
|
if (label)
|
|
strbuf_addf(&buf_payload, "label:%s", label);
|
|
if (fmt && *fmt) {
|
|
strbuf_addch(&buf_payload, ' ' );
|
|
maybe_append_string_va(&buf_payload, fmt, ap);
|
|
}
|
|
|
|
perf_io_write_fl(file, line, event_name, repo, &us_elapsed_absolute,
|
|
&us_elapsed_region, category, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
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 strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "%s:%s", key, value);
|
|
|
|
perf_io_write_fl(file, line, event_name, repo, &us_elapsed_absolute,
|
|
&us_elapsed_region, category, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
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 strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "%s:%s", key, value->json.buf);
|
|
|
|
perf_io_write_fl(file, line, event_name, repo, &us_elapsed_absolute,
|
|
&us_elapsed_region, category, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_printf_va_fl(const char *file, int line,
|
|
uint64_t us_elapsed_absolute, const char *fmt,
|
|
va_list ap)
|
|
{
|
|
const char *event_name = "printf";
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
maybe_append_string_va(&buf_payload, fmt, ap);
|
|
|
|
perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
|
|
NULL, NULL, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_timer(const struct tr2_timer_metadata *meta,
|
|
const struct tr2_timer *timer,
|
|
int is_final_data)
|
|
{
|
|
const char *event_name = is_final_data ? "timer" : "th_timer";
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
double t_total = NS_TO_SEC(timer->total_ns);
|
|
double t_min = NS_TO_SEC(timer->min_ns);
|
|
double t_max = NS_TO_SEC(timer->max_ns);
|
|
|
|
strbuf_addf(&buf_payload, ("name:%s"
|
|
" intervals:%"PRIu64
|
|
" total:%8.6f min:%8.6f max:%8.6f"),
|
|
meta->name,
|
|
timer->interval_count,
|
|
t_total, t_min, t_max);
|
|
|
|
perf_io_write_fl(__FILE__, __LINE__, event_name, NULL, NULL, NULL,
|
|
meta->category, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
static void fn_counter(const struct tr2_counter_metadata *meta,
|
|
const struct tr2_counter *counter,
|
|
int is_final_data)
|
|
{
|
|
const char *event_name = is_final_data ? "counter" : "th_counter";
|
|
struct strbuf buf_payload = STRBUF_INIT;
|
|
|
|
strbuf_addf(&buf_payload, "name:%s value:%"PRIu64,
|
|
meta->name,
|
|
counter->value);
|
|
|
|
perf_io_write_fl(__FILE__, __LINE__, event_name, NULL, NULL, NULL,
|
|
meta->category, &buf_payload);
|
|
strbuf_release(&buf_payload);
|
|
}
|
|
|
|
struct tr2_tgt tr2_tgt_perf = {
|
|
.pdst = &tr2dst_perf,
|
|
|
|
.pfn_init = fn_init,
|
|
.pfn_term = fn_term,
|
|
|
|
.pfn_version_fl = fn_version_fl,
|
|
.pfn_start_fl = fn_start_fl,
|
|
.pfn_exit_fl = fn_exit_fl,
|
|
.pfn_signal = fn_signal,
|
|
.pfn_atexit = fn_atexit,
|
|
.pfn_error_va_fl = fn_error_va_fl,
|
|
.pfn_command_path_fl = fn_command_path_fl,
|
|
.pfn_command_ancestry_fl = fn_command_ancestry_fl,
|
|
.pfn_command_name_fl = fn_command_name_fl,
|
|
.pfn_command_mode_fl = fn_command_mode_fl,
|
|
.pfn_alias_fl = fn_alias_fl,
|
|
.pfn_child_start_fl = fn_child_start_fl,
|
|
.pfn_child_exit_fl = fn_child_exit_fl,
|
|
.pfn_child_ready_fl = fn_child_ready_fl,
|
|
.pfn_thread_start_fl = fn_thread_start_fl,
|
|
.pfn_thread_exit_fl = fn_thread_exit_fl,
|
|
.pfn_exec_fl = fn_exec_fl,
|
|
.pfn_exec_result_fl = fn_exec_result_fl,
|
|
.pfn_param_fl = fn_param_fl,
|
|
.pfn_repo_fl = fn_repo_fl,
|
|
.pfn_region_enter_printf_va_fl = fn_region_enter_printf_va_fl,
|
|
.pfn_region_leave_printf_va_fl = fn_region_leave_printf_va_fl,
|
|
.pfn_data_fl = fn_data_fl,
|
|
.pfn_data_json_fl = fn_data_json_fl,
|
|
.pfn_printf_va_fl = fn_printf_va_fl,
|
|
.pfn_timer = fn_timer,
|
|
.pfn_counter = fn_counter,
|
|
};
|