libcurl extracted to the separate lib

git-svn-id: http://svn.miranda-ng.org/main/trunk@14683 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

1 files changed, 329 insertions, 0 deletions

diff --git a/libs/libcurl/src/nwlib.c b/libs/libcurl/src/nwlib.c
new file mode 100644
index 0000000000..252bf11ec8
--- /dev/null
+++ b/libs/libcurl/src/nwlib.c
@@ -0,0 +1,329 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  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 "curl_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 */