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[mc] Do not execute MCer code in MCed mode in MC_remove_ignore_heap()
[simgrid.git] / src / mc / mc_process.h
index b8c5514..d10a28c 100644 (file)
 #include <sys/types.h>
 
 #include "simgrid_config.h"
-
 #include <sys/types.h>
 
 #include <xbt/mmalloc.h>
+
+#ifdef HAVE_MC
 #include "xbt/mmalloc/mmprivate.h"
+#endif
 
+#include <simgrid/simix.h>
 #include "simix/popping_private.h"
+#include "simix/smx_private.h"
 
 #include "mc_forward.h"
 #include "mc_mmalloc.h" // std_heap
 #include "mc_memory_map.h"
 #include "mc_address_space.h"
+#include "mc_protocol.h"
 
 SG_BEGIN_DECL()
 
 int MC_process_vm_open(pid_t pid, int flags);
 
-typedef enum {
-  MC_PROCESS_NO_FLAG = 0,
-  MC_PROCESS_SELF_FLAG = 1,
-} e_mc_process_flags_t;
+typedef int mc_process_flags_t;
+#define MC_PROCESS_NO_FLAG 0
+#define MC_PROCESS_SELF_FLAG 1
 
 // Those flags are used to track down which cached information
 // is still up to date and which information needs to be updated.
-typedef enum {
-  MC_PROCESS_CACHE_FLAG_HEAP = 1,
-  MC_PROCESS_CACHE_FLAG_MALLOC_INFO = 2,
-} e_mc_process_cache_flags_t ;
+typedef int mc_process_cache_flags_t;
+#define MC_PROCESS_CACHE_FLAG_NONE 0
+#define MC_PROCESS_CACHE_FLAG_HEAP 1
+#define MC_PROCESS_CACHE_FLAG_MALLOC_INFO 2
+#define MC_PROCESS_CACHE_FLAG_SIMIX_PROCESSES 4
+
+typedef struct s_mc_smx_process_info s_mc_smx_process_info_t, *mc_smx_process_info_t;
 
 /** Representation of a process
  */
 struct s_mc_process {
   s_mc_address_space_t address_space;
-  e_mc_process_flags_t process_flags;
+  mc_process_flags_t process_flags;
   pid_t pid;
   int socket;
   int status;
@@ -57,13 +64,22 @@ struct s_mc_process {
   size_t object_infos_size;
   int memory_file;
 
-  // Cache: don't use those fields directly but with the getters
-  // which ensure that proper synchronisation has been done.
-
-  e_mc_process_cache_flags_t cache_flags;
+  /** Copy of `simix_global->process_list`
+   *
+   *  See mc_smx.c.
+   */
+  xbt_dynar_t smx_process_infos;
 
-  /** Address of the heap structure in the target process.
+  /** Copy of `simix_global->process_to_destroy`
+   *
+   *  See mc_smx.c.
    */
+  xbt_dynar_t smx_old_process_infos;
+
+  /** State of the cache (which variables are up to date) */
+  mc_process_cache_flags_t cache_flags;
+
+  /** Address of the heap structure in the MCed process. */
   void* heap_address;
 
   /** Copy of the heap structure of the process
@@ -102,6 +118,8 @@ struct s_mc_process {
   /** The corresponding context
    */
   void* unw_underlying_context;
+
+  xbt_dynar_t checkpoint_ignore;
 };
 
 bool MC_is_process(mc_address_space_t p);
@@ -139,10 +157,17 @@ bool MC_process_is_self(mc_process_t process)
  *  @param len     data size
  */
 const void* MC_process_read(mc_process_t process,
-  e_adress_space_read_flags_t flags,
+  adress_space_read_flags_t flags,
   void* local, const void* remote, size_t len,
   int process_index);
 
+// Simplified versions/wrappers (whould be moved in mc_address_space):
+const void* MC_process_read_simple(mc_process_t process,
+  void* local, const void* remote, size_t len);
+const void* MC_process_read_dynar_element(mc_process_t process,
+  void* local, const void* remote_dynar, size_t i, size_t len);
+unsigned long MC_process_read_dynar_length(mc_process_t process, const void* remote_dynar);
+
 /** Write data to a process memory
  *
  *  @param process the process
@@ -162,6 +187,9 @@ mc_object_info_t MC_process_find_object_info_rw(mc_process_t process, const void
 
 dw_frame_t MC_process_find_function(mc_process_t process, const void* ip);
 
+void MC_process_read_variable(mc_process_t process, const char* name, void* target, size_t size);
+char* MC_process_read_string(mc_process_t, void* address);
+
 static inline xbt_mheap_t MC_process_get_heap(mc_process_t process)
 {
   if (MC_process_is_self(process))
@@ -184,6 +212,8 @@ static inline malloc_info* MC_process_get_malloc_info(mc_process_t process)
  */
 dw_variable_t MC_process_find_variable_by_name(mc_process_t process, const char* name);
 
+void MC_invalidate_cache(void);
+
 SG_END_DECL()
 
 #endif