diff options
Diffstat (limited to 'libs/pbd/semutils.cc')
| -rw-r--r-- | libs/pbd/semutils.cc | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/libs/pbd/semutils.cc b/libs/pbd/semutils.cc index 48fdd249f6..cf7b54d30e 100644 --- a/libs/pbd/semutils.cc +++ b/libs/pbd/semutils.cc @@ -23,7 +23,12 @@ using namespace PBD; ProcessSemaphore::ProcessSemaphore (const char* name, int val) { -#ifdef __APPLE__ +#ifdef PLATFORM_WINDOWS + if ((_sem = CreateSemaphore(NULL, val, 32767, name)) == NULL) { + throw failed_constructor (); + } + +#elif __APPLE__ if ((_sem = sem_open (name, O_CREAT, 0600, val)) == (sem_t*) SEM_FAILED) { throw failed_constructor (); } @@ -45,7 +50,28 @@ ProcessSemaphore::ProcessSemaphore (const char* name, int val) ProcessSemaphore::~ProcessSemaphore () { -#ifdef __APPLE__ +#ifdef PLATFORM_WINDOWS + CloseHandle(_sem); +#elif __APPLE__ sem_close (ptr_to_sem()); #endif } + +#ifdef PLATFORM_WINDOWS + +int +ProcessSemaphore::signal () +{ + // non-zero on success, opposite to posix + return !ReleaseSemaphore(_sem, 1, NULL); +} + +int +ProcessSemaphore::wait () +{ + DWORD result = 0; + result = WaitForSingleObject(_sem, INFINITE); + return (result == WAIT_OBJECT_0); +} + +#endif |