From 21e44c45d994798d50df9fa77c905465a38a4675 Mon Sep 17 00:00:00 2001
From: Yinan Zhang <zyn8950@gmail.com>
Date: Tue, 17 Mar 2020 19:57:06 -0700
Subject: [PATCH] Make maps file opening replaceable in test

---
 include/jemalloc/internal/prof_externs.h | 2 ++
 src/prof_data.c                          | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/jemalloc/internal/prof_externs.h b/include/jemalloc/internal/prof_externs.h
index 2f9f2c95..e5d6ff7b 100644
--- a/include/jemalloc/internal/prof_externs.h
+++ b/include/jemalloc/internal/prof_externs.h
@@ -98,6 +98,8 @@ typedef int (prof_dump_open_file_t)(const char *, int);
 extern prof_dump_open_file_t *JET_MUTABLE prof_dump_open_file;
 typedef bool (prof_dump_header_t)(tsdn_t *, bool, const prof_cnt_t *);
 extern prof_dump_header_t *JET_MUTABLE prof_dump_header;
+typedef int (prof_dump_open_maps_t)();
+extern prof_dump_open_maps_t *JET_MUTABLE prof_dump_open_maps;
 void prof_cnt_all(uint64_t *curobjs, uint64_t *curbytes, uint64_t *accumobjs,
     uint64_t *accumbytes);
 
diff --git a/src/prof_data.c b/src/prof_data.c
index 62b650ca..b9b211d4 100644
--- a/src/prof_data.c
+++ b/src/prof_data.c
@@ -942,7 +942,7 @@ prof_open_maps_internal(const char *format, ...) {
 #endif
 
 static int
-prof_dump_open_maps() {
+prof_dump_open_maps_impl() {
 	int mfd;
 
 	cassert(config_prof);
@@ -960,6 +960,8 @@ prof_dump_open_maps() {
 #endif
 	return mfd;
 }
+prof_dump_open_maps_t *JET_MUTABLE prof_dump_open_maps =
+    prof_dump_open_maps_impl;
 
 static bool
 prof_dump_maps(bool propagate_err) {