diff options
| author | midipix <writeonce@midipix.org> | 2020-12-03 22:12:17 +0000 |
|---|---|---|
| committer | midipix <writeonce@midipix.org> | 2020-12-04 13:24:16 +0000 |
| commit | 4a5679eb2c3e36feb5af04b717949e41ec4b5d91 (patch) | |
| tree | bef0155b5c78f9b56cfdfbe8f13daef69b97150a | |
| parent | cc20b3d7478519676a573055015528d7a6c47d45 (diff) | |
| download | ntapi-4a5679eb2c3e36feb5af04b717949e41ec4b5d91.tar.bz2 ntapi-4a5679eb2c3e36feb5af04b717949e41ec4b5d91.tar.xz | |
__ntapi_tt_fork_v1(): obtain atomic lock via loop as needed.
| -rw-r--r-- | src/process/ntapi_tt_fork_v1.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/process/ntapi_tt_fork_v1.c b/src/process/ntapi_tt_fork_v1.c index eeee49b..74e0b7e 100644 --- a/src/process/ntapi_tt_fork_v1.c +++ b/src/process/ntapi_tt_fork_v1.c @@ -166,15 +166,20 @@ intptr_t __fastcall __ntapi_tt_fork_v1( timeout.quad = (-1) * 10 * 1000 * __NT_FORK_CHILD_WAIT_MILLISEC; htty_connected = 0; - if (at_locked_cas(&__internals->hlock,0,1)) - return (intptr_t)(-1); + while (at_locked_cas(&__internals->hlock,0,1)) + __ntapi->zw_delay_execution( + NT_SYNC_NON_ALERTABLE, + &(nt_timeout){{0,0}}); - if (hport_session && *hport_session) + if (hport_session && *hport_session) { if (__ntapi_tt_create_inheritable_event( &htty_connected, NT_NOTIFICATION_EVENT, - NT_EVENT_NOT_SIGNALED)) + NT_EVENT_NOT_SIGNALED)) { + at_store(&__internals->hlock,0); return (intptr_t)(-1); + } + } pid = __tt_fork_v1(); |