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lib/util: add process_set_title()

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Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This commit is contained in:
Ralph Boehme 2022-12-02 15:17:20 +01:00 committed by Jeremy Allison
parent 987cba9057
commit 19c82c19c0
2 changed files with 42 additions and 3 deletions
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32
lib/util/util_process.c
View File

@ -26,16 +26,42 @@
#include <sys/prctl.h>
#endif
int prctl_set_comment(const char *comment_format, ...)
void process_set_title(const char *short_format, const char *long_format, ...)
{
#if defined(HAVE_PRCTL) && defined(PR_SET_NAME)
if (short_format != NULL) {
char short_comment[16] = {0,};
va_list ap;
va_start(ap, long_format);
vsnprintf(short_comment, sizeof(short_comment), short_format, ap);
va_end(ap);
prctl(PR_SET_NAME, (unsigned long) short_comment, 0, 0, 0);
}
#endif
if (long_format != NULL) {
char long_comment[256] = {0,};
va_list ap;
va_start(ap, long_format);
vsnprintf(long_comment, sizeof(long_comment), long_format, ap);
va_end(ap);
setproctitle("%s", long_comment);
}
}
int prctl_set_comment(const char *comment_format, ...)
{
char comment[16];
va_list ap;
va_start(ap, comment_format);
vsnprintf(comment, sizeof(comment), comment_format, ap);
va_end(ap);
return prctl(PR_SET_NAME, (unsigned long) comment, 0, 0, 0);
#endif
process_set_title("%s", "%s", comment);
return 0;
}

13
lib/util/util_process.h
View File

@ -34,4 +34,17 @@
*/
int prctl_set_comment(const char *comment_format, ...) PRINTF_ATTRIBUTE(1,2);
/**
* @brief Set the process comment name and longname
*
* @param[in] short_format The comment to set which shouldn't be longer than 16
* 16 characters (including \0).
* @param[in] long_format The format string and arguments to produce the long
* form of the process name.
*
* @return -1 on error, 0 on success.
*/
void process_set_title(const char *short_format, const char *long_format, ...)
PRINTF_ATTRIBUTE(1,3) PRINTF_ATTRIBUTE(2,3);
#endif