Changeset b9641ee in mainline for uspace/lib/libc/include/psthread.h

Timestamp:

2007-06-27T23:12:25Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

bc1f1c2

Parents:

72381f1

Message:

1. Implement simple joining of pseudo threads. Only one pseudo thread is allowed to join another pseudo

thread. The restriction is that both pseudo threads must be from the same thread (this is to simplify
synchronization). The joiner doesn't free anything from the joinee. It only gets its return value. Not
tested thoroughly yet.

2. Cleanup of a dead pseudo thread is done by the next scheduled pseudo thread. Not tested thoroughly yet.

File:

• uspace/lib/libc/include/psthread.h (modified) (3 diffs)

uspace/lib/libc/include/psthread.h

@@ -50 +50 @@
 
 typedef enum {
+        PS_SLEEP,
+        PS_PREEMPT,
         PS_TO_MANAGER,
         PS_FROM_MANAGER,
-        PS_PREEMPT,
         PS_FROM_DEAD
 } pschange_type;
@@ -66 +67 @@
         tcb_t *tcb;
 
-        struct psthread_data *waiter;
-        int finished;
+        struct psthread_data *clean_after_me;
+        struct psthread_data *joiner;
+        int joinee_retval;
         int retval;
         int flags;
@@ -88 +90 @@
 void psthread_dec_sercount(void);
 
-static inline int psthread_schedule_next() {
+static inline int psthread_schedule_next(void) {
         return psthread_schedule_next_adv(PS_PREEMPT);
 }
-
 
 #endif