[mc] Page-level sparse snapshot: work-in-progress, working page_store

[simgrid.git] / src / mc / mc_global.c

diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c
index a3de319..e9520f6 100644 (file)
--- a/src/mc/mc_global.c
+++ b/src/mc/mc_global.c
@@ -29,6 +29,7 @@ e_mc_reduce_t mc_reduce_kind = e_mc_reduce_unset;
 
 int _sg_do_model_check = 0;
 int _sg_mc_checkpoint = 0;
+int _sg_mc_sparse_checkpoint = 0;
 char *_sg_mc_property_file = NULL;
 int _sg_mc_timeout = 0;
 int _sg_mc_hash = 0;
@@ -68,6 +69,13 @@ void _mc_cfg_cb_checkpoint(const char *name, int pos)
   _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
 }
 
+void _mc_cfg_cb_sparse_checkpoint(const char *name, int pos) {
+  if (_sg_cfg_init_status && !_sg_do_model_check) {
+    xbt_die("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+  }
+  _sg_mc_sparse_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name);
+}
+
 void _mc_cfg_cb_property(const char *name, int pos)
 {
   if (_sg_cfg_init_status && !_sg_do_model_check) {
@@ -220,9 +228,10 @@ static void MC_init_debug_info(void)
 }
 
 
+mc_model_checker_t mc_model_checker = NULL;
+
 void MC_init()
 {
-
   int raw_mem_set = (mmalloc_get_current_heap() == mc_heap);
 
   mc_time = xbt_new0(double, simix_process_maxpid);
@@ -232,6 +241,11 @@ void MC_init()
 
   MC_SET_MC_HEAP;
 
+  mc_model_checker = xbt_new0(s_mc_model_checker_t, 1);
+  mc_model_checker->pages = mc_pages_store_new();
+  mc_model_checker->fd_clear_refs = -1;
+  mc_model_checker->fd_pagemap = -1;
+
   mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1);
 
   /* Initialize statistics */
@@ -261,12 +275,16 @@ void MC_init()
     MC_ignore_local_variable("ctx", "*");
 
     MC_ignore_local_variable("self", "simcall_BODY_mc_snapshot");
-    MC_ignore_local_variable("next_context", "smx_ctx_sysv_suspend_serial");
+    MC_ignore_local_variable("next_cont"
+      "ext", "smx_ctx_sysv_suspend_serial");
     MC_ignore_local_variable("i", "smx_ctx_sysv_suspend_serial");
 
     /* Ignore local variable about time used for tracing */
     MC_ignore_local_variable("start_time", "*");
 
+    MC_ignore_global_variable("mc_model_checker");
+
+    // Mot of those things could be moved into mc_model_checker:
     MC_ignore_global_variable("compared_pointers");
     MC_ignore_global_variable("mc_comp_times");
     MC_ignore_global_variable("mc_snapshot_comparison_time");
@@ -277,6 +295,7 @@ void MC_init()
     MC_ignore_global_variable("maestro_stack_end");
     MC_ignore_global_variable("smx_total_comms");
 
+
     MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double));
 
     smx_process_t process;