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execute: automatically record start/exit timestamps for forked processes

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This commit is contained in:
Lennart Poettering 2010-04-10 05:03:14 +02:00
parent 302e8c4c4c
commit 9fb867204f
2 changed files with 50 additions and 4 deletions
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48
execute.c
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@ -447,7 +447,7 @@ static int enforce_user(const ExecContext *context, uid_t uid) {
return 0;
}
int exec_spawn(const ExecCommand *command,
int exec_spawn(ExecCommand *command,
const ExecContext *context,
int *fds, unsigned n_fds,
bool apply_permissions,
@ -698,6 +698,9 @@ int exec_spawn(const ExecCommand *command,
log_debug("Forked %s as %llu", command->path, (unsigned long long) pid);
command->exec_status.pid = pid;
command->exec_status.start_timestamp = now(CLOCK_REALTIME);
*ret = pid;
return 0;
}
@ -925,9 +928,41 @@ void exec_status_fill(ExecStatus *s, pid_t pid, int code, int status) {
assert(s);
s->pid = pid;
s->exit_timestamp = now(CLOCK_REALTIME);
s->code = code;
s->status = status;
s->timestamp = now(CLOCK_REALTIME);
}
void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix) {
char buf[FORMAT_TIMESTAMP_MAX];
assert(s);
assert(f);
if (!prefix)
prefix = "";
if (s->pid <= 0)
return;
fprintf(f,
"%sPID: %llu\n",
prefix, (unsigned long long) s->pid);
if (s->start_timestamp > 0)
fprintf(f,
"%sStart Timestamp: %s\n",
prefix, format_timestamp(buf, sizeof(buf), s->start_timestamp));
if (s->exit_timestamp > 0)
fprintf(f,
"%sExit Timestamp: %s\n"
"%sExit Code: %s\n"
"%sExit Status: %i\n",
prefix, format_timestamp(buf, sizeof(buf), s->exit_timestamp),
prefix, sigchld_code_to_string(s->code),
prefix, s->status);
}
char *exec_command_line(ExecCommand *c) {
@ -971,6 +1006,9 @@ char *exec_command_line(ExecCommand *c) {
}
void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix) {
char *p2;
const char *prefix2;
char *cmd;
assert(c);
@ -978,6 +1016,8 @@ void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix) {
if (!prefix)
prefix = "";
p2 = strappend(prefix, "\t");
prefix2 = p2 ? p2 : prefix;
cmd = exec_command_line(c);
@ -986,6 +1026,10 @@ void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix) {
prefix, cmd ? cmd : strerror(ENOMEM));
free(cmd);
exec_status_dump(&c->exec_status, f, prefix2);
free(p2);
}
void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix) {

6
execute.h
View File

@ -59,7 +59,8 @@ typedef enum ExecInput {
struct ExecStatus {
pid_t pid;
usec_t timestamp;
usec_t start_timestamp;
usec_t exit_timestamp;
int code; /* as in siginfo_t::si_code */
int status; /* as in sigingo_t::si_status */
};
@ -153,7 +154,7 @@ typedef enum ExitStatus {
EXIT_SETSID
} ExitStatus;
int exec_spawn(const ExecCommand *command,
int exec_spawn(ExecCommand *command,
const ExecContext *context,
int *fds, unsigned n_fds,
bool apply_permissions,
@ -174,6 +175,7 @@ void exec_context_done(ExecContext *c);
void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
void exec_status_fill(ExecStatus *s, pid_t pid, int code, int status);
void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
const char* exec_output_to_string(ExecOutput i);
int exec_output_from_string(const char *s);