maintain virtual machine status

1 files changed, 21 insertions, 10 deletions

diff --git a/mixlib/mix_vm.h b/mixlib/mix_vm.h
index d3f4e3f..b7412bf 100644
--- a/mixlib/mix_vm.h
+++ b/mixlib/mix_vm.h
@@ -153,25 +153,33 @@ mix_vm_get_lineno_address (const mix_vm_t *vm, guint lineno);
 
 /* continue execution of instructions in memory */
 /* Possible outcomes */
-enum {
-  MIX_VM_ERROR,		/* error executing instructions */
-  MIX_VM_BREAK,		/* breakpoint found */
-  MIX_VM_COND_BREAK,    /* conditional breakpoint found */
-  MIX_VM_HALT,		/* end of execution */
-  MIX_VM_OK		/* successful instruction execution */
-};
-
-extern int
+typedef enum {
+  MIX_VM_ERROR,			/* error executing instructions */
+  MIX_VM_BREAK,			/* breakpoint found */
+  MIX_VM_COND_BREAK,		/* conditional breakpoint found */
+  MIX_VM_HALT,			/* end of execution */
+  MIX_VM_RUNNING,		/* successful instruction execution */
+  MIX_VM_LOADED,		/* program loaded */
+  MIX_VM_EMPTY			/* no program loaded */
+} mix_vm_status_t;
+
+/* run until next breakpoint or end of execution */
+extern mix_vm_status_t
 mix_vm_run (mix_vm_t *vm);
 
 /* execute next memory instruction */
-extern int
+extern mix_vm_status_t
 mix_vm_exec_next (mix_vm_t *vm);
 
+/* get the current execution status */
+extern mix_vm_status_t
+mix_vm_get_run_status (const mix_vm_t *vm);
+
 /* get the line no. of the last break or 0 if not found */
 extern gulong
 mix_vm_get_break_lineno (const mix_vm_t *vm);
 
+
 /* Breakpoints */
 /* possible error outcomes */
 enum {
@@ -210,6 +218,9 @@ mix_vm_clear_conditional_breakpoint (mix_vm_t *vm, mix_predicate_t *pred);
 extern const gchar *
 mix_vm_get_last_breakpoint_message (const mix_vm_t *vm);
 
+extern mix_predicate_type_t
+mix_vm_get_last_conditional_breakpoint_type (const mix_vm_t *vm);
+
 /* Get the vm uptime, defined as the time spent executing instructions */
 extern mix_time_t
 mix_vm_get_uptime (const mix_vm_t *vm);