begin conversion of lua contextes to sysv ones to ensure that we can yield C code

[simgrid.git] / src / simix / smx_context_private.h

diff --git a/src/simix/smx_context_private.h b/src/simix/smx_context_private.h
index 57a77fd..5c561c1 100644 (file)
--- a/src/simix/smx_context_private.h
+++ b/src/simix/smx_context_private.h
@@ -44,7 +44,25 @@ void smx_ctx_base_free(smx_context_t context);
 void smx_ctx_base_stop(smx_context_t context);
 
 /* Functions of sysv context mecanism: lua inherites them */
-smx_context_t
+#include "portable.h"
+#ifdef CONTEXT_UCONTEXT
+
+/* lower this if you want to reduce the memory consumption  */
+#ifndef CONTEXT_STACK_SIZE /* allow lua to override this */
+#define CONTEXT_STACK_SIZE 128*1024
+#endif /*CONTEXT_STACK_SIZE */
+
+#include "context_sysv_config.h"        /* loads context system definitions */
+#include <ucontext.h>           /* context relative declarations */
+
+typedef struct s_smx_ctx_sysv {
+  s_smx_ctx_base_t super;       /* Fields of super implementation */
+  ucontext_t uc;                /* the thread that execute the code */
+  char stack[CONTEXT_STACK_SIZE];       /* the thread stack size */
+#ifdef HAVE_VALGRIND_VALGRIND_H
+  unsigned int valgrind_stack_id;       /* the valgrind stack id */
+#endif
+} s_smx_ctx_sysv_t, *smx_ctx_sysv_t;smx_context_t
 smx_ctx_sysv_create_context_sized(size_t size,
     xbt_main_func_t code, int argc, char** argv,
     void_f_pvoid_t cleanup_func, void* cleanup_arg);
@@ -52,6 +70,7 @@ void smx_ctx_sysv_free(smx_context_t context);
 void smx_ctx_sysv_stop(smx_context_t context);
 void smx_ctx_sysv_suspend(smx_context_t context);
 void smx_ctx_sysv_resume(smx_context_t new_context);
+#endif
 
 SG_END_DECL()
 #endif /* !_XBT_CONTEXT_PRIVATE_H */