int _NonAppStart ( void *NLMHandle, void *errorScreen, const char *cmdLine, const char *loadDirPath, size_t uninitializedDataLength, void *NLMFileHandle, int (*readRoutineP)( int conn, void *fileHandle, size_t offset, size_t nbytes, size_t *bytesRead, void *buffer ), size_t customDataOffset, size_t customDataSize, int messageCount, const char **messages ) { NX_LOCK_INFO_ALLOC(liblock, "Per-Application Data Lock", 0); #pragma unused(cmdLine) #pragma unused(loadDirPath) #pragma unused(uninitializedDataLength) #pragma unused(NLMFileHandle) #pragma unused(readRoutineP) #pragma unused(customDataOffset) #pragma unused(customDataSize) #pragma unused(messageCount) #pragma unused(messages) /* Here we process our command line, post errors (to the error screen), * perform initializations and anything else we need to do before being able * to accept calls into us. If we succeed, we return non-zero and the NetWare * Loader will leave us up, otherwise we fail to load and get dumped. */ /** gAllocTag = AllocateResourceTag(NLMHandle, "<library-name> memory allocations", AllocSignature); if (!gAllocTag) { OutputToScreen(errorScreen, "Unable to allocate resource tag for " "library memory allocations.\n"); return -1; } **/ gLibId = register_library(DisposeLibraryData); if (gLibId == -1) { OutputToScreen(errorScreen, "Unable to register library with kernel.\n"); return -1; } gLibHandle = NLMHandle; gLibLock = NXMutexAlloc(0, 0, &liblock); if (!gLibLock) { OutputToScreen(errorScreen, "Unable to allocate library data lock.\n"); return -1; } return 0; }
int _NonAppStart ( void *NLMHandle, void *errorScreen, const char *cmdLine, const char *loadDirPath, size_t uninitializedDataLength, void *NLMFileHandle, int (*readRoutineP)( int conn, void *fileHandle, size_t offset, size_t nbytes, size_t *bytesRead, void *buffer ), size_t customDataOffset, size_t customDataSize, int messageCount, const char **messages ) { WSADATA wsaData; apr_status_t status; NX_LOCK_INFO_ALLOC(liblock, "Per-Application Data Lock", 0); #pragma unused(cmdLine) #pragma unused(loadDirPath) #pragma unused(uninitializedDataLength) #pragma unused(NLMFileHandle) #pragma unused(readRoutineP) #pragma unused(customDataOffset) #pragma unused(customDataSize) #pragma unused(messageCount) #pragma unused(messages) gLibId = register_library(DisposeLibraryData); if (gLibId < -1) { OutputToScreen(errorScreen, "Unable to register library with kernel.\n"); return -1; } gLibHandle = NLMHandle; gLibLock = NXMutexAlloc(0, 0, &liblock); if (!gLibLock) { OutputToScreen(errorScreen, "Unable to allocate library data lock.\n"); return -1; } apr_netware_setup_time(); if ((status = apr_pool_initialize()) != APR_SUCCESS) return status; return WSAStartup((WORD) MAKEWORD(2, 0), &wsaData); }
int GetOrSetUpData(int id, libdata_t **appData, libthreaddata_t **threadData ) { int err; libdata_t *app_data; libthreaddata_t *thread_data; NXKey_t key; NX_LOCK_INFO_ALLOC(liblock, "Application Data Lock", 0); err = 0; thread_data = (libthreaddata_t *) NULL; /* ** Attempt to get our data for the application calling us. This is where we ** store whatever application-specific information we need to carry in support ** of calling applications. */ app_data = (libdata_t *) get_app_data(id); if(!app_data) { /* ** This application hasn't called us before; set up application AND per-thread ** data. Of course, just in case a thread from this same application is calling ** us simultaneously, we better lock our application data-creation mutex. We ** also need to recheck for data after we acquire the lock because WE might be ** that other thread that was too late to create the data and the first thread ** in will have created it. */ NXLock(gLibLock); if(!(app_data = (libdata_t *) get_app_data(id))) { app_data = malloc(sizeof(libdata_t)); if(app_data) { memset(app_data, 0, sizeof(libdata_t)); app_data->tenbytes = malloc(10); app_data->lock = NXMutexAlloc(0, 0, &liblock); if(!app_data->tenbytes || !app_data->lock) { if(app_data->lock) NXMutexFree(app_data->lock); free(app_data); app_data = (libdata_t *) NULL; err = ENOMEM; } if(app_data) { /* ** Here we burn in the application data that we were trying to get by calling ** get_app_data(). Next time we call the first function, we'll get this data ** we're just now setting. We also go on here to establish the per-thread data ** for the calling thread, something we'll have to do on each application ** thread the first time it calls us. */ err = set_app_data(gLibId, app_data); if(err) { free(app_data); app_data = (libdata_t *) NULL; err = ENOMEM; } else { /* create key for thread-specific data... */ err = NXKeyCreate(DisposeThreadData, (void *) NULL, &key); if(err) /* (no more keys left?) */ key = -1; app_data->perthreadkey = key; } } } } NXUnlock(gLibLock); } if(app_data) { key = app_data->perthreadkey; if(key != -1 /* couldn't create a key? no thread data */ && !(err = NXKeyGetValue(key, (void **) &thread_data)) && !thread_data) { /* ** Allocate the per-thread data for the calling thread. Regardless of whether ** there was already application data or not, this may be the first call by a ** a new thread. The fact that we allocation 20 bytes on a pointer is not very ** important, this just helps to demonstrate that we can have arbitrarily ** complex per-thread data. */ thread_data = malloc(sizeof(libthreaddata_t)); if(thread_data) { thread_data->_errno = 0; thread_data->twentybytes = malloc(20); if(!thread_data->twentybytes) { free(thread_data); thread_data = (libthreaddata_t *) NULL; err = ENOMEM; } if((err = NXKeySetValue(key, thread_data))) { free(thread_data->twentybytes); free(thread_data); thread_data = (libthreaddata_t *) NULL; } } } } if(appData) *appData = app_data; if(threadData) *threadData = thread_data; return err; }