From 682f23e7bb4a52bedf46eff5c4859e1308eda124 Mon Sep 17 00:00:00 2001 From: Michał Cichoń Date: Tue, 25 Aug 2015 19:56:24 +0200 Subject: Update build ref --- libcurl/src/lib/nwlib.c | 325 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 325 insertions(+) create mode 100644 libcurl/src/lib/nwlib.c (limited to 'libcurl/src/lib/nwlib.c') diff --git a/libcurl/src/lib/nwlib.c b/libcurl/src/lib/nwlib.c new file mode 100644 index 0000000..bd3f27e --- /dev/null +++ b/libcurl/src/lib/nwlib.c @@ -0,0 +1,325 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2012, Daniel Stenberg, , 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 "curl_setup.h" + +#ifdef NETWARE /* Novell NetWare */ + +#ifdef __NOVELL_LIBC__ +/* For native LibC-based NLM we need to register as a real lib. */ +#include +#include +#include +#include +#include + +#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, + " 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; + + free(tenbytes); + free(data); + } + + return 0; +} + +void DisposeThreadData( void *data ) +{ + if(data) { + void *twentybytes = ((libthreaddata_t *) data)->twentybytes; + + free(twentybytes); + free(data); + } +} + +#else /* __NOVELL_LIBC__ */ +/* For native CLib-based NLM seems we can do a bit more simple. */ +#include + +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 */ -- cgit v1.2.3