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Add a PID_T_FORMAT for writing pids to logs

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This is based on code by yayooo for 7260, but:

 - It allows for SIZEOF_PID_T == SIZEOF_SHORT

 - It addresses some additional cases where we weren't getting any
   warnings only because we were casting pid_t to int.
This commit is contained in:
Nick Mathewson 2012-11-02 14:03:38 -04:00
parent 5e096b6770
commit 07656d70ed
1 changed files with 25 additions and 12 deletions
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37
src/common/procmon.c
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@ -27,9 +27,19 @@
#include <windows.h>
#endif
#if 0 == SIZEOF_PID_T
/* Windows does not define pid_t, but _getpid() returns an int. */
#if (0 == SIZEOF_PID_T) && defined(_WIN32)
/* Windows does not define pid_t sometimes, but _getpid() returns an int.
* Everybody else needs to have a pid_t. */
typedef int pid_t;
#define PID_T_FORMAT "%d"
#elif (SIZEOF_PID_T == SIZEOF_INT) || (SIZEOF_PID_T == SIZEOF_SHORT)
#define PID_T_FORMAT "%d"
#elif (SIZEOF_PID_T == SIZEOF_LONG)
#define PID_T_FORMAT "%ld"
#elif (SIZEOF_PID_T == SIZEOF_INT64_T)
#define PID_T_FORMAT I64_FORMAT
#else
#error Unknown: SIZEOF_PID_T
#endif
/* Define to 1 if process-termination monitors on this OS and Libevent
@ -206,15 +216,17 @@ tor_process_monitor_new(struct event_base *base,
if (procmon->hproc != NULL) {
procmon->poll_hproc = 1;
log_info(procmon->log_domain, "Successfully opened handle to process %d; "
log_info(procmon->log_domain, "Successfully opened handle to process "
PID_T_FORMAT"; "
"monitoring it.",
(int)(procmon->pid));
procmon->pid);
} else {
/* If we couldn't get a handle to the process, we'll try again the
* first time we poll. */
log_info(procmon->log_domain, "Failed to open handle to process %d; will "
log_info(procmon->log_domain, "Failed to open handle to process "
PID_T_FORMAT"; will "
"try again later.",
(int)(procmon->pid));
procmon->pid);
}
#endif
@ -259,7 +271,8 @@ tor_process_monitor_poll_cb(evutil_socket_t unused1, short unused2,
if (!GetExitCodeProcess(procmon->hproc, &exit_code)) {
char *errmsg = format_win32_error(GetLastError());
log_warn(procmon->log_domain, "Error \"%s\" occurred while polling "
"handle for monitored process %d; assuming it's dead.",
"handle for monitored process "PID_T_FORMAT"; assuming "
"it's dead.",
errmsg, procmon->pid);
tor_free(errmsg);
its_dead_jim = 1;
@ -275,7 +288,7 @@ tor_process_monitor_poll_cb(evutil_socket_t unused1, short unused2,
if (procmon->hproc != NULL) {
log_info(procmon->log_domain, "Successfully opened handle to monitored "
"process %d.",
"process "PID_T_FORMAT".",
procmon->pid);
its_dead_jim = 0;
procmon->poll_hproc = 1;
@ -294,8 +307,8 @@ tor_process_monitor_poll_cb(evutil_socket_t unused1, short unused2,
if (!its_dead_jim)
log_info(procmon->log_domain, "Failed to open handle to monitored "
"process %d, and error code %lu (%s) is not 'invalid "
"parameter' -- assuming the process is still alive.",
"process "PID_T_FORMAT", and error code %lu (%s) is not "
"'invalid parameter' -- assuming the process is still alive.",
procmon->pid,
err_code, errmsg);
@ -309,8 +322,8 @@ tor_process_monitor_poll_cb(evutil_socket_t unused1, short unused2,
#endif
log(its_dead_jim ? LOG_NOTICE : LOG_INFO,
procmon->log_domain, "Monitored process %d is %s.",
(int)procmon->pid,
procmon->log_domain, "Monitored process "PID_T_FORMAT" is %s.",
procmon->pid,
its_dead_jim ? "dead" : "still alive");
if (its_dead_jim) {