diff options
Diffstat (limited to 'opentrack-compat/shm.cpp')
| -rw-r--r-- | opentrack-compat/shm.cpp | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/opentrack-compat/shm.cpp b/opentrack-compat/shm.cpp index a26b808b..fffb3709 100644 --- a/opentrack-compat/shm.cpp +++ b/opentrack-compat/shm.cpp @@ -36,7 +36,7 @@ struct secattr pACL = nullptr; } - secattr() : success(true), pSD(nullptr), pEveryoneSID(nullptr), pACL(nullptr) + secattr(DWORD perms) : success(true), pSD(nullptr), pEveryoneSID(nullptr), pACL(nullptr) { SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY; EXPLICIT_ACCESS ea; @@ -52,7 +52,7 @@ struct secattr memset(&ea, 0, sizeof(ea)); - ea.grfAccessPermissions = KEY_READ; + ea.grfAccessPermissions = perms; ea.grfAccessMode = SET_ACCESS; ea.grfInheritance = NO_INHERITANCE; ea.Trustee.TrusteeForm = TRUSTEE_IS_SID; @@ -109,9 +109,14 @@ cleanup: PortableLockedShm::PortableLockedShm(const char* shmName, const char* mutexName, int mapSize) { - secattr sa; + secattr sa(GENERIC_ALL|SYNCHRONIZE); hMutex = CreateMutexA(sa.success ? &sa.attrs : nullptr, false, mutexName); + if (!hMutex) + { + fprintf(stderr, "CreateMutexA: %d\n", (int) GetLastError()); + fflush(stderr); + } hMapFile = CreateFileMappingA( INVALID_HANDLE_VALUE, sa.success ? &sa.attrs : nullptr, @@ -119,11 +124,21 @@ PortableLockedShm::PortableLockedShm(const char* shmName, const char* mutexName, 0, mapSize, shmName); + if (!hMapFile) + { + fprintf(stderr, "CreateFileMappingA: %d\n", (int) GetLastError()); + fflush(stderr); + } mem = MapViewOfFile(hMapFile, FILE_MAP_WRITE, 0, 0, mapSize); + if (!mem) + { + fprintf(stderr, "MapViewOfFile: %d\n", (int) GetLastError()); + fflush(stderr); + } } PortableLockedShm::~PortableLockedShm() |