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| author | midipix <writeonce@midipix.org> | 2015-08-25 22:27:04 -0400 |
|---|---|---|
| committer | midipix <writeonce@midipix.org> | 2015-09-26 11:19:26 -0400 |
| commit | c0bd29170fa3a71a9856e0a2cd75f4ad0b3854c2 (patch) | |
| tree | 06f0b86fd5ebb70aeb1acc62f1605a6ca2012d2c /src/sync | |
| parent | 44c078a60d01e02ac5834212ad31276e909ea344 (diff) | |
| download | ntapi-c0bd29170fa3a71a9856e0a2cd75f4ad0b3854c2.tar.bz2 ntapi-c0bd29170fa3a71a9856e0a2cd75f4ad0b3854c2.tar.xz | |
__ntapi_tt_sync_block_unlock(): construct the 64-bit comparison value by way of a union.
Diffstat (limited to 'src/sync')
| -rw-r--r-- | src/sync/ntapi_tt_sync_block.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/sync/ntapi_tt_sync_block.c b/src/sync/ntapi_tt_sync_block.c index e52dd77..b28d56e 100644 --- a/src/sync/ntapi_tt_sync_block.c +++ b/src/sync/ntapi_tt_sync_block.c @@ -219,17 +219,20 @@ int32_t __stdcall __ntapi_tt_sync_block_server_lock( int32_t __stdcall __ntapi_tt_sync_block_unlock( __in nt_sync_block * sync_block) { - int64_t cmp; + union { + int64_t i64; + nt_large_integer nti64; + } cmp; if (sync_block->invalid) return NT_STATUS_INVALID_HANDLE; - cmp = (int64_t)(pe_get_current_process_id()) << 32; - cmp += pe_get_current_thread_id(); + cmp.nti64.ihigh = pe_get_current_process_id(); + cmp.nti64.ulow = pe_get_current_thread_id(); - if (cmp != at_locked_cas_64( + if (cmp.i64 != at_locked_cas_64( (int64_t *)&sync_block->tid, - cmp,0)) + cmp.i64,0)) return NT_STATUS_RESOURCE_NOT_OWNED; return NT_STATUS_SUCCESS; |