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+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#include "setup.h"
+
+#ifdef NETWARE /* Novell NetWare */
+
+#ifdef __NOVELL_LIBC__
+/* For native LibC-based NLM we need to register as a real lib. */
+#include <library.h>
+#include <netware.h>
+#include <screen.h>
+#include <nks/thread.h>
+#include <nks/synch.h>
+
+#include "curl_memory.h"
+/* The last #include file should be: */
+#include "memdebug.h"
+
+typedef struct
+{
+ int _errno;
+ void *twentybytes;
+} libthreaddata_t;
+
+typedef struct
+{
+ int x;
+ int y;
+ int z;
+ void *tenbytes;
+ NXKey_t perthreadkey; /* if -1, no key obtained... */
+ NXMutex_t *lock;
+} libdata_t;
+
+int gLibId = -1;
+void *gLibHandle = (void *) NULL;
+rtag_t gAllocTag = (rtag_t) NULL;
+NXMutex_t *gLibLock = (NXMutex_t *) NULL;
+
+/* internal library function prototypes... */
+int DisposeLibraryData( void * );
+void DisposeThreadData( void * );
+int GetOrSetUpData( int id, libdata_t **data, libthreaddata_t **threaddata );
+
+
+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);
+
+#ifndef __GNUC__
+#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)
+#endif
+
+ /*
+ * 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;
+}
+
+/*
+ * Here we clean up any resources we allocated. Resource tags is a big part
+ * of what we created, but NetWare doesn't ask us to free those.
+ */
+void _NonAppStop( void )
+{
+ (void) unregister_library(gLibId);
+ NXMutexFree(gLibLock);
+}
+
+/*
+ * This function cannot be the first in the file for if the file is linked
+ * first, then the check-unload function's offset will be nlmname.nlm+0
+ * which is how to tell that there isn't one. When the check function is
+ * first in the linked objects, it is ambiguous. For this reason, we will
+ * put it inside this file after the stop function.
+ *
+ * Here we check to see if it's alright to ourselves to be unloaded. If not,
+ * we return a non-zero value. Right now, there isn't any reason not to allow
+ * it.
+ */
+int _NonAppCheckUnload( void )
+{
+ return 0;
+}
+
+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 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;
+}
+
+int DisposeLibraryData( void *data )
+{
+ if(data) {
+ void *tenbytes = ((libdata_t *) data)->tenbytes;
+
+ if(tenbytes)
+ free(tenbytes);
+
+ free(data);
+ }
+
+ return 0;
+}
+
+void DisposeThreadData( void *data )
+{
+ if(data) {
+ void *twentybytes = ((libthreaddata_t *) data)->twentybytes;
+
+ if(twentybytes)
+ free(twentybytes);
+
+ free(data);
+ }
+}
+
+#else /* __NOVELL_LIBC__ */
+/* For native CLib-based NLM seems we can do a bit more simple. */
+#include <nwthread.h>
+
+int main ( void )
+{
+ /* initialize any globals here... */
+
+ /* do this if any global initializing was done
+ SynchronizeStart();
+ */
+ ExitThread (TSR_THREAD, 0);
+ return 0;
+}
+
+#endif /* __NOVELL_LIBC__ */
+
+#else /* NETWARE */
+
+#ifdef __POCC__
+# pragma warn(disable:2024) /* Disable warning #2024: Empty input file */
+#endif
+
+#endif /* NETWARE */
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