add mi_process_done to the api

Author: daanx

include/mimalloc.h

@@ -153,16 +153,20 @@ mi_decl_export void mi_stats_reset(void)      mi_attr_noexcept;
 mi_decl_export void mi_stats_merge(void)      mi_attr_noexcept;
 mi_decl_export void mi_stats_print(void* out) mi_attr_noexcept;  // backward compatibility: `out` is ignored and should be NULL
 mi_decl_export void mi_stats_print_out(mi_output_fun* out, void* arg) mi_attr_noexcept;
+mi_decl_export void mi_thread_stats_print_out(mi_output_fun* out, void* arg) mi_attr_noexcept;
 mi_decl_export void mi_options_print(void)    mi_attr_noexcept;
 
+mi_decl_export void mi_process_info(size_t* elapsed_msecs, size_t* user_msecs, size_t* system_msecs,
+                                    size_t* current_rss, size_t* peak_rss,
+                                    size_t* current_commit, size_t* peak_commit, size_t* page_faults) mi_attr_noexcept;
+
+
+// Generally do not use the following as these are usually called automatically
 mi_decl_export void mi_process_init(void)     mi_attr_noexcept;
+mi_decl_export void mi_cdecl mi_process_done(void) mi_attr_noexcept;
 mi_decl_export void mi_thread_init(void)      mi_attr_noexcept;
 mi_decl_export void mi_thread_done(void)      mi_attr_noexcept;
-mi_decl_export void mi_thread_stats_print_out(mi_output_fun* out, void* arg) mi_attr_noexcept;
 
-mi_decl_export void mi_process_info(size_t* elapsed_msecs, size_t* user_msecs, size_t* system_msecs,
-                                    size_t* current_rss, size_t* peak_rss,
-                                    size_t* current_commit, size_t* peak_commit, size_t* page_faults) mi_attr_noexcept;
 
 // -------------------------------------------------------------------------------------
 // Aligned allocation

src/init.c

@@ -642,7 +642,11 @@ void mi_process_init(void) mi_attr_noexcept {
   }
 }
 
-// Called when the process is done (through `at_exit`)
+void mi_cdecl mi_process_done(void) mi_attr_noexcept {
+  _mi_process_done();
+}
+
+// Called when the process is done (cdecl as it is used with `at_exit` on some platforms)
 void mi_cdecl _mi_process_done(void) {
   // only shutdown if we were initialized
   if (!_mi_process_is_initialized) return;