Not needed after ldap_int_thread_userctx_t.ltu_id was added and
_pool_wrapper took care not to update thread_keys[] during pauses.
Fix bogus thread_keys[].ctx comment.
- Move problematic mutex_unlock()-mutex_lock() into the unused #ifdef
LDAP_PVT_THREAD_POOL_SEM_LOAD_CONTROL and add a FIXME comment inside.
- Delay ltp_starting--; until pool_wrapper(). Nonzero value could otherwise
no longer be exposed when !defined LDAP_PVT_THREAD_POOL_SEM_LOAD_CONTROL.
(setkey/getkey expected that, but purgekey could set a NULL in the middle.)
Added some checks for input key!=NULL.
API changes, need review - I'm not sure what's indented here:
- setkey(data=NULL, kfree!=NULL) searched as if intended to reset
the key, but updated by setting the key. Now always updates.
- setkey(key=<not found>, data=NULL) could return either success or
failure. Now succeeds iff (data == NULL && kfree == NULL).
ldap_pvt_thread_pool_purgekey() which may only be called during pauses.
Thus, also wait for pauses to finish before accessing thread_keys in
ldap_int_thread_pool_wrapper(). This may prevent pending tasks from
being started when a pause had been requested, which seems to have been
possible. If that was a feature, we can split ltp_pause==1 in 2 states:
in pause (causes wait), and pause requested.
Also move 'thread_keys[].id = <thread id>' from pool_submit to
pool_wrapper. Until pool_wrapper set the ctx as well, thread context
lookup would just return NULL anyway.
so a pause will work during states FINISHING and STOPPING.
Add missing waits and signals, and move waits in pool_wrapper().
Replace if(test) with while(test) when waiting for the multi-purpose
condition variable ltp_cond.
In ldap_pvt_thread_pool_submit(), when backing out of thread creation:
ltp_pending_count '++' -> '--'. Signal if there are no more threads.
In ldap_int_thread_pool_wrapper():
if() -> assert() where false would result in eternal loop.
- Avoid buffer overrun when too many readers.
- When remoinv reader ID, move one ID instead of all later IDs in array.
- assert(correct lock owner) before unlocking a write lock.
Expand usage struct with magic numbers and state info.
Add options "noreinit", "nosync", "nomem", "threadID". Remove "dupinit".
Detect address changes. Turn off thread ID tracking by default.
