Function prof_dump_filename

app/redis-6.2.6/deps/jemalloc/src/prof.c:1722–1738

#define DUMP_FILENAME_BUFSIZE	(PATH_MAX + 1)
#define VSEQ_INVALID		UINT64_C(0xffffffffffffffff)
static void
prof_dump_filename(char *filename, char v, uint64_t vseq) {
	cassert(config_prof);

	if (vseq != VSEQ_INVALID) {
	        /* "<prefix>.<pid>.<seq>.v<vseq>.heap" */
		malloc_snprintf(filename, DUMP_FILENAME_BUFSIZE,
		    "%s.%d.%"FMTu64".%c%"FMTu64".heap",
		    opt_prof_prefix, prof_getpid(), prof_dump_seq, v, vseq);
	} else {
	        /* "<prefix>.<pid>.<seq>.<v>.heap" */
		malloc_snprintf(filename, DUMP_FILENAME_BUFSIZE,
		    "%s.%d.%"FMTu64".%c.heap",
		    opt_prof_prefix, prof_getpid(), prof_dump_seq, v);
	}
	prof_dump_seq++;
}

static void
prof_fdump(void) {