x86: Poll and discard console devices during setup

[akaros.git] / kern / include / process.h

diff --git a/kern/include/process.h b/kern/include/process.h
index 6c2537e..bae8b7b 100644 (file)
--- a/kern/include/process.h
+++ b/kern/include/process.h
@@ -30,6 +30,13 @@
  *   a while.  Possibly even using its local APIC timer.
  * - A process in an _M state will be informed about changes to its state, e.g.,
  *   will have a handler run in the event of a page fault
+ *
+ * DYING vs. DYING_ABORT:
+ * - DYING is the initial stage when a process is dying, but before all of its
+ * syscalls should abort.  At this point, we start closing FDs and blocking
+ * certain new operations.
+ * - DYING_ABORT is after all FDs were closed and all outstanding syscalls are
+ * aborted.
  */
 
 #define PROC_CREATED                   0x01
@@ -37,22 +44,29 @@
 #define PROC_RUNNING_S                 0x04
 #define PROC_WAITING                   0x08 // can split out to INT and UINT
 #define PROC_DYING                             0x10
-#define PROC_RUNNABLE_M                        0x20
-#define PROC_RUNNING_M                 0x40
-
-#define procstate2str(state) ((state)==PROC_CREATED    ? "CREATED"    : \
-                              (state)==PROC_RUNNABLE_S ? "RUNNABLE_S" : \
-                              (state)==PROC_RUNNING_S  ? "RUNNING_S"  : \
-                              (state)==PROC_WAITING    ? "WAITING"    : \
-                              (state)==PROC_DYING      ? "DYING"      : \
-                              (state)==PROC_RUNNABLE_M ? "RUNNABLE_M" : \
-                              (state)==PROC_RUNNING_M  ? "RUNNING_M"  : \
-                                                         "UNKNOWN")
+#define PROC_DYING_ABORT               0x20
+#define PROC_RUNNABLE_M                        0x40
+#define PROC_RUNNING_M                 0x80
+
+#define procstate2str(state) ((state) == PROC_CREATED     ? "CREATED"     : \
+                              (state) == PROC_RUNNABLE_S  ? "RUNNABLE_S"  : \
+                              (state) == PROC_RUNNING_S   ? "RUNNING_S"   : \
+                              (state) == PROC_WAITING     ? "WAITING"     : \
+                              (state) == PROC_DYING       ? "DYING"       : \
+                              (state) == PROC_DYING_ABORT ? "DYING_ABORT" : \
+                              (state) == PROC_RUNNABLE_M  ? "RUNNABLE_M"  : \
+                              (state) == PROC_RUNNING_M   ? "RUNNING_M"   : \
+                                                            "UNKNOWN")
 
 #define DEFAULT_PROGNAME ""
 
 #include <env.h>
 
+static bool proc_is_dying(struct proc *p)
+{
+       return (p->state == PROC_DYING) || (p->state == PROC_DYING_ABORT);
+}
+
 struct process_set {
        size_t num_processes;
        size_t size;
@@ -65,6 +79,8 @@ extern spinlock_t pid_hash_lock;
 
 /* Initialization */
 void proc_init(void);
+void proc_set_username(struct proc *p, char *name);
+void proc_inherit_parent_username(struct proc *child, struct proc *parent);
 void proc_set_progname(struct proc *p, char *name);
 void proc_replace_binary_path(struct proc *p, char *path);
 void proc_init_procinfo(struct proc* p);
@@ -161,7 +177,8 @@ void proc_init_ctx(struct user_context *ctx, uint32_t vcoreid, uintptr_t entryp,
                    uintptr_t stack_top, uintptr_t tls_desc);
 void proc_secure_ctx(struct user_context *ctx);
 void __abandon_core(void);
+void __clear_owning_proc(uint32_t coreid);
 
 /* Degubbing */
 void print_allpids(void);
-void print_proc_info(pid_t pid);
+void print_proc_info(pid_t pid, int verbosity);