diff options
Diffstat (limited to 'nonportable.c')
-rw-r--r-- | nonportable.c | 149 |
1 files changed, 70 insertions, 79 deletions
diff --git a/nonportable.c b/nonportable.c index 49548dd..e6b6995 100644 --- a/nonportable.c +++ b/nonportable.c @@ -27,27 +27,85 @@ #include "implement.h" /* - * pthread_mutexattr_setforcecs_np() + * pthread_mutexattr_setkind_np() + */ +int pthread_mutexattr_setkind_np(pthread_mutexattr_t * attr, int kind) +{ + return pthread_mutexattr_settype( attr, kind ); +} + +/* + * pthread_mutexattr_getkind_np() + */ +int pthread_mutexattr_getkind_np(pthread_mutexattr_t * attr, int *kind) +{ + return pthread_mutexattr_gettype( attr, kind ); +} + + +/* + * pthread_mutex_setdefaultkind_np -- + * + * Sets the default type to be given to all + * POSIX mutexes initialised after the function + * is called. Any of the following type values + * can be made the default type: + * + * PTHREAD_MUTEX_NORMAL + * PTHREAD_MUTEX_ERRORCHECK + * PTHREAD_MUTEX_RECURSIVE + * PTHREAD_MUTEX_DEFAULT + * + * Any mutex initialised with kind PTHREAD_MUTEX_DEFAULT + * will be set to the mapped type instead. Previously + * initialised mutexes are not changed. * - * Allows an application to force the library to use - * critical sections rather than win32 mutexes as - * the basis for any mutexes that use "attr". + * When set to PTHREAD_MUTEX_DEFAULT (the initial + * value), mutexes will behave as for the + * PTHREAD_MUTEX_RECURSIVE kind. * - * Values for "forcecs" are defined in pthread.h */ int -pthread_mutexattr_setforcecs_np(pthread_mutexattr_t *attr, - int forcecs) +pthread_mutex_setdefaultkind_np (int kind ) { - if (attr == NULL || *attr == NULL) + int result = 0; + + switch (kind) { - /* This is disallowed. */ - return EINVAL; + case PTHREAD_MUTEX_FAST_NP: + case PTHREAD_MUTEX_RECURSIVE_NP: + case PTHREAD_MUTEX_ERRORCHECK_NP: + ptw32_mutex_default_kind = kind; + break; + default: + result = EINVAL; } - (*attr)->forcecs = forcecs; + return result; +} + +/* + * pthread_mutex_getdefaultkind_np -- + * + * Return the default kind for all mutexes + * + */ +int +pthread_mutex_getdefaultkind_np (int *kind) +{ + int result = 0; + + if (kind != NULL) + { + *kind = ptw32_mutex_default_kind; + } - return 0; + else + { + result = EINVAL; + } + + return result; } /* @@ -141,75 +199,13 @@ pthread_delay_np (struct timespec * interval) } -/* - * Handle to kernel32.dll - */ -static HINSTANCE ptw32_h_kernel32; - - BOOL pthread_win32_process_attach_np () { BOOL result = TRUE; - /* - * We use this to double-check that TryEnterCriticalSection works. - */ - CRITICAL_SECTION cs; - result = ptw32_processInitialize (); - /* - * Load KERNEL32 and try to get address of TryEnterCriticalSection - */ - ptw32_h_kernel32 = LoadLibrary(TEXT("KERNEL32.DLL")); - ptw32_try_enter_critical_section = (BOOL (PT_STDCALL *)(LPCRITICAL_SECTION)) - -#if defined(NEED_UNICODE_CONSTS) - GetProcAddress(ptw32_h_kernel32, - (const TCHAR *)TEXT("TryEnterCriticalSection")); -#else - GetProcAddress(ptw32_h_kernel32, - (LPCSTR) "TryEnterCriticalSection"); -#endif - - if (ptw32_try_enter_critical_section != NULL) - { - InitializeCriticalSection(&cs); - if ((*ptw32_try_enter_critical_section)(&cs)) - { - LeaveCriticalSection(&cs); - } - else - { - /* - * Not really supported (Win98?). - */ - ptw32_try_enter_critical_section = NULL; - } - DeleteCriticalSection(&cs); - } - - if (ptw32_try_enter_critical_section == NULL) - { - /* - * If TryEnterCriticalSection is not being used, then free - * the kernel32.dll handle now, rather than leaving it until - * DLL_PROCESS_DETACH. - * - * Note: this is not a pedantic exercise in freeing unused - * resources! It is a work-around for a bug in Windows 95 - * (see microsoft knowledge base article, Q187684) which - * does Bad Things when FreeLibrary is called within - * the DLL_PROCESS_DETACH code, in certain situations. - * Since w95 just happens to be a platform which does not - * provide TryEnterCriticalSection, the bug will be - * effortlessly avoided. - */ - (void) FreeLibrary(ptw32_h_kernel32); - ptw32_h_kernel32 = 0; - } - return result; } @@ -235,11 +231,6 @@ pthread_win32_process_detach_np () * The DLL is being unmapped into the process's address space */ ptw32_processTerminate (); - - if (ptw32_h_kernel32) - { - (void) FreeLibrary(ptw32_h_kernel32); - } } return TRUE; |