1999-02-02 Martin Hunt <hunt@cygnus.com>

[deliverable/binutils-gdb.git] / gdb / gdbthread.h

diff --git a/gdb/gdbthread.h b/gdb/gdbthread.h
index c298b1d288dd0d8586562e960ac1175b172b3e61..653dd65c16a15318934a832678f5b23b1fb6ea69 100644 (file)
--- a/gdb/gdbthread.h
+++ b/gdb/gdbthread.h
@@ -23,6 +23,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #ifndef GDBTHREAD_H
 #define GDBTHREAD_H
 
+/* For bpstat */
+#include "breakpoint.h"
+
 extern void init_thread_list PARAMS ((void));
 
 extern void add_thread PARAMS ((int pid));
@@ -40,16 +43,79 @@ extern int valid_thread_id PARAMS ((int thread));
 extern void load_infrun_state PARAMS ((int, CORE_ADDR *, CORE_ADDR *, char **,
                                       int *, struct breakpoint **,
                                       struct breakpoint **, CORE_ADDR *,
-                                      CORE_ADDR *, CORE_ADDR *, int *, int *));
+                                      CORE_ADDR *, CORE_ADDR *, int *, int *,
+                                       int *, bpstat *, int *));
 
 extern void save_infrun_state PARAMS ((int, CORE_ADDR, CORE_ADDR, char *,
                                       int, struct breakpoint *,
                                       struct breakpoint *, CORE_ADDR,
-                                      CORE_ADDR, CORE_ADDR, int, int));
+                                      CORE_ADDR, CORE_ADDR, int, int,
+                                       int, bpstat, int));
 
 /* Commands with a prefix of `thread'.  */
 extern struct cmd_list_element *thread_cmd_list;
 
-extern void _initialize_thread PARAMS ((void));
+/* Support for external (remote) systems with threads (processes) */
+/* For example real time operating systems */
+ 
+#define OPAQUETHREADBYTES 8
+/* a 64 bit opaque identifier */
+typedef unsigned char threadref[OPAQUETHREADBYTES] ;
+/* WARNING: This threadref data structure comes from the remote O.S., libstub
+   protocol encoding, and remote.c. it is not particularly changable */
+
+/* Right now, the internal structure is int. We want it to be bigger.
+   Plan to fix this.
+   */
+typedef int gdb_threadref ; /* internal GDB thread reference */
+
+/*  gdb_ext_thread_info is an internal GDB data structure which is
+   equivalint to the reply of the remote threadinfo packet */
+
+struct gdb_ext_thread_info
+{
+  threadref threadid ; /* External form of thread reference */
+  int active ;         /* Has state interesting to GDB? , regs, stack */
+  char display[256] ;  /* Brief state display, name, blocked/syspended */
+  char shortname[32] ; /* To be used to name threads */
+  char more_display[256] ; /* Long info, statistics, queue depth, whatever */
+} ;
+
+/* The volume of remote transfers can be limited by submitting
+   a mask containing bits specifying the desired information.
+   Use a union of these values as the 'selection' parameter to
+   get_thread_info. FIXME: Make these TAG names more thread specific.
+   */
+#define TAG_THREADID 1
+#define TAG_EXISTS 2
+#define TAG_DISPLAY 4
+#define TAG_THREADNAME 8
+#define TAG_MOREDISPLAY 16 
+
+/* Always initialize an instance of this structure using run time assignments */
+/* Because we are likely to add entrtries to it. */
+/* Alternatly, WE COULD ADD THESE TO THE TARGET VECTOR */
+  
+struct target_thread_vector
+{
+  int (*find_new_threads)PARAMS((void)) ;
+  int (*get_thread_info) PARAMS((
+                        gdb_threadref * ref,
+                        int selection,
+                        struct gdb_ext_thread_info * info
+                        )) ;
+  /* to_thread_alive - Already in the target vector */
+  /* to_switch_thread - Done via select frame */
+} ;
+
+extern void bind_target_thread_vector PARAMS((struct target_thread_vector * vec)) ;
+
+extern struct target_thread_vector * unbind_target_thread_vector PARAMS ((void)) ;
+
+extern int target_get_thread_info PARAMS((
+                                 gdb_threadref * ref,
+                                 int selection,
+                                 struct gdb_ext_thread_info * info)) ;
+
 
 #endif /* GDBTHREAD_H */