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Create "child_ready" event to capture the state of a child process created in the background. When a child command is started a "child_start" event is generated in the Trace2 log. For normal synchronous children, a "child_exit" event is later generated when the child exits or is terminated. The two events include information, such as the "child_id" and "pid", to allow post analysis to match-up the command line and exit status. When a child is started in the background (and may outlive the parent process), it is not possible for the parent to emit a "child_exit" event. Create a new "child_ready" event to indicate whether the child was successfully started. Also include the "child_id" and "pid" to allow similar post processing. This will be used in a later commit with the new "start_bg_command()". Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
143 lines
5.6 KiB
C
143 lines
5.6 KiB
C
#ifndef TR2_TGT_H
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#define TR2_TGT_H
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struct child_process;
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struct repository;
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struct json_writer;
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/*
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* Function prototypes for a TRACE2 "target" vtable.
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*/
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typedef int(tr2_tgt_init_t)(void);
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typedef void(tr2_tgt_term_t)(void);
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typedef void(tr2_tgt_evt_version_fl_t)(const char *file, int line);
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typedef void(tr2_tgt_evt_start_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute,
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const char **argv);
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typedef void(tr2_tgt_evt_exit_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute, int code);
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typedef void(tr2_tgt_evt_signal_t)(uint64_t us_elapsed_absolute, int signo);
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typedef void(tr2_tgt_evt_atexit_t)(uint64_t us_elapsed_absolute, int code);
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typedef void(tr2_tgt_evt_error_va_fl_t)(const char *file, int line,
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const char *fmt, va_list ap);
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typedef void(tr2_tgt_evt_command_path_fl_t)(const char *file, int line,
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const char *command_path);
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typedef void(tr2_tgt_evt_command_ancestry_fl_t)(const char *file, int line,
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const char **parent_names);
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typedef void(tr2_tgt_evt_command_name_fl_t)(const char *file, int line,
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const char *name,
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const char *hierarchy);
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typedef void(tr2_tgt_evt_command_mode_fl_t)(const char *file, int line,
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const char *mode);
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typedef void(tr2_tgt_evt_alias_fl_t)(const char *file, int line,
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const char *alias, const char **argv);
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typedef void(tr2_tgt_evt_child_start_fl_t)(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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typedef void(tr2_tgt_evt_child_exit_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute, int cid,
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int pid, int code,
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uint64_t us_elapsed_child);
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typedef void(tr2_tgt_evt_child_ready_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute,
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int cid, int pid, const char *ready,
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uint64_t us_elapsed_child);
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typedef void(tr2_tgt_evt_thread_start_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute);
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typedef void(tr2_tgt_evt_thread_exit_fl_t)(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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typedef void(tr2_tgt_evt_exec_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute, int exec_id,
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const char *exe, const char **argv);
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typedef void(tr2_tgt_evt_exec_result_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute,
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int exec_id, int code);
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typedef void(tr2_tgt_evt_param_fl_t)(const char *file, int line,
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const char *param, const char *value);
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typedef void(tr2_tgt_evt_repo_fl_t)(const char *file, int line,
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const struct repository *repo);
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typedef void(tr2_tgt_evt_region_enter_printf_va_fl_t)(
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const char *file, int line, uint64_t us_elapsed_absolute,
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const char *category, const char *label, const struct repository *repo,
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const char *fmt, va_list ap);
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typedef void(tr2_tgt_evt_region_leave_printf_va_fl_t)(
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const char *file, int line, uint64_t us_elapsed_absolute,
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uint64_t us_elapsed_region, const char *category, const char *label,
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const struct repository *repo, const char *fmt, va_list ap);
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typedef void(tr2_tgt_evt_data_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute,
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uint64_t us_elapsed_region,
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const char *category,
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const struct repository *repo,
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const char *key, const char *value);
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typedef void(tr2_tgt_evt_data_json_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute,
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uint64_t us_elapsed_region,
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const char *category,
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const struct repository *repo,
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const char *key,
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const struct json_writer *value);
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typedef void(tr2_tgt_evt_printf_va_fl_t)(const char *file, int line,
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uint64_t us_elapsed_absolute,
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const char *fmt, va_list ap);
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/*
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* "vtable" for a TRACE2 target. Use NULL if a target does not want
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* to emit that message.
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*/
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/* clang-format off */
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struct tr2_tgt {
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struct tr2_dst *pdst;
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tr2_tgt_init_t *pfn_init;
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tr2_tgt_term_t *pfn_term;
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tr2_tgt_evt_version_fl_t *pfn_version_fl;
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tr2_tgt_evt_start_fl_t *pfn_start_fl;
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tr2_tgt_evt_exit_fl_t *pfn_exit_fl;
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tr2_tgt_evt_signal_t *pfn_signal;
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tr2_tgt_evt_atexit_t *pfn_atexit;
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tr2_tgt_evt_error_va_fl_t *pfn_error_va_fl;
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tr2_tgt_evt_command_path_fl_t *pfn_command_path_fl;
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tr2_tgt_evt_command_ancestry_fl_t *pfn_command_ancestry_fl;
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tr2_tgt_evt_command_name_fl_t *pfn_command_name_fl;
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tr2_tgt_evt_command_mode_fl_t *pfn_command_mode_fl;
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tr2_tgt_evt_alias_fl_t *pfn_alias_fl;
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tr2_tgt_evt_child_start_fl_t *pfn_child_start_fl;
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tr2_tgt_evt_child_exit_fl_t *pfn_child_exit_fl;
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tr2_tgt_evt_child_ready_fl_t *pfn_child_ready_fl;
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tr2_tgt_evt_thread_start_fl_t *pfn_thread_start_fl;
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tr2_tgt_evt_thread_exit_fl_t *pfn_thread_exit_fl;
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tr2_tgt_evt_exec_fl_t *pfn_exec_fl;
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tr2_tgt_evt_exec_result_fl_t *pfn_exec_result_fl;
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tr2_tgt_evt_param_fl_t *pfn_param_fl;
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tr2_tgt_evt_repo_fl_t *pfn_repo_fl;
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tr2_tgt_evt_region_enter_printf_va_fl_t *pfn_region_enter_printf_va_fl;
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tr2_tgt_evt_region_leave_printf_va_fl_t *pfn_region_leave_printf_va_fl;
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tr2_tgt_evt_data_fl_t *pfn_data_fl;
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tr2_tgt_evt_data_json_fl_t *pfn_data_json_fl;
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tr2_tgt_evt_printf_va_fl_t *pfn_printf_va_fl;
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};
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/* clang-format on */
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extern struct tr2_tgt tr2_tgt_event;
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extern struct tr2_tgt tr2_tgt_normal;
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extern struct tr2_tgt tr2_tgt_perf;
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#endif /* TR2_TGT_H */
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