void crHashtableReplace( CRHashTable *h, unsigned long key, void *data,
CRHashtableCallback deleteFunc)
{
unsigned int index = crHash( key );
CRHashNode *temp;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&h->mutex);
#endif
for ( temp = h->buckets[index]; temp; temp = temp->next )
{
if ( temp->key == key )
break;
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&h->mutex);
#endif
if ( !temp )
{
crHashtableAdd( h, key, data );
return;
}
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&h->mutex);
#endif
if ( temp->data && deleteFunc )
{
(*deleteFunc)( temp->data );
}
temp->data = data;
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&h->mutex);
#endif
}
GLint FEEDBACKSPU_APIENTRY
feedbackspu_VBoxCreateContext( GLint con, const char *dpyName, GLint visual, GLint shareCtx )
{
GLint ctx, slot;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&feedback_spu.mutex);
#endif
ctx = feedback_spu.child.VBoxCreateContext(con, dpyName, visual, shareCtx);
/* find an empty context slot */
for (slot = 0; slot < feedback_spu.numContexts; slot++) {
if (!feedback_spu.context[slot].clientState) {
/* found empty slot */
break;
}
}
if (slot == feedback_spu.numContexts) {
feedback_spu.numContexts++;
}
feedback_spu.context[slot].clientState = crStateCreateContext(NULL, visual, NULL);
feedback_spu.context[slot].clientCtx = ctx;
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&feedback_spu.mutex);
#endif
return ctx;
}
static void ARRAYSPU_APIENTRY
arrayspu_DestroyContext( GLint ctx )
{
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&_ArrayMutex);
#endif
array_spu.child.DestroyContext(ctx);
if (ctx) {
int slot;
for (slot=0; slot<array_spu.numContexts; ++slot)
if (array_spu.context[slot].clientCtx == ctx) break;
CRASSERT(slot < array_spu.numContexts);
crStateDestroyContext(array_spu.context[slot].clientState);
array_spu.context[slot].clientState = NULL;
array_spu.context[slot].clientCtx = 0;
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&_ArrayMutex);
#endif
}
static void ARRAYSPU_APIENTRY
arrayspu_MakeCurrent( GLint window, GLint nativeWindow, GLint ctx )
{
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&_ArrayMutex);
#endif
array_spu.child.MakeCurrent(window, nativeWindow, ctx);
if (ctx) {
int slot;
for (slot=0; slot<array_spu.numContexts; ++slot)
if (array_spu.context[slot].clientCtx == ctx) break;
CRASSERT(slot < array_spu.numContexts);
crStateMakeCurrent(array_spu.context[slot].clientState);
}
else
{
crStateMakeCurrent(NULL);
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&_ArrayMutex);
#endif
}
static GLint ARRAYSPU_APIENTRY
arrayspu_CreateContext( const char *dpyName, GLint visual, GLint shareCtx )
{
GLint ctx, slot;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&_ArrayMutex);
#endif
ctx = array_spu.child.CreateContext(dpyName, visual, shareCtx);
/* find an empty context slot */
for (slot = 0; slot < array_spu.numContexts; slot++) {
if (!array_spu.context[slot].clientState) {
/* found empty slot */
break;
}
}
if (slot == array_spu.numContexts) {
array_spu.numContexts++;
}
array_spu.context[slot].clientState = crStateCreateContext(NULL, visual, NULL);
array_spu.context[slot].clientCtx = ctx;
#ifdef CR_ARB_vertex_buffer_object
array_spu.context[slot].clientState->bufferobject.retainBufferData = GL_TRUE;
#endif
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&_ArrayMutex);
#endif
return ctx;
}
GLuint PACKSPU_APIENTRY packspu_VBoxPackGetInjectID(GLint con)
{
GLuint ret;
crLockMutex(&_PackMutex);
{
ThreadInfo *thread = NULL;
if (CRPACKSPU_IS_WDDM_CRHGSMI())
{
if (!con)
{
crError("connection expected!");
return 0;
}
thread = GET_THREAD_VAL_ID(con);
}
else
{
CRASSERT(!con);
thread = GET_THREAD_VAL();
}
CRASSERT(thread && thread->netServer.conn && thread->netServer.conn->type==CR_VBOXHGCM);
ret = thread->netServer.conn->u32ClientID;
}
crUnlockMutex(&_PackMutex);
return ret;
}
static int
packSPUCleanup(void)
{
int i;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&_PackMutex);
#endif
for (i=0; i<MAX_THREADS; ++i)
{
if (pack_spu.thread[i].inUse && pack_spu.thread[i].packer)
{
crPackDeleteContext(pack_spu.thread[i].packer);
}
}
crFreeTSD(&_PackerTSD);
crFreeTSD(&_PackTSD);
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&_PackMutex);
# ifndef WINDOWS
crFreeMutex(&_PackMutex);
# endif
#endif
return 1;
}
static void
crSDPFree( CRConnection *conn, void *buf )
{
CRSDPBuffer *sdp_buffer = (CRSDPBuffer *) buf - 1;
CRASSERT( sdp_buffer->magic == CR_SDP_BUFFER_MAGIC );
conn->recv_credits += sdp_buffer->len;
switch ( sdp_buffer->kind )
{
case CRSDPMemory:
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&cr_sdp.mutex);
#endif
if (cr_sdp.bufpool) {
/* pool may have been deallocated just a bit earlier in response
* to a SIGPIPE (Broken Pipe) signal.
*/
crBufferPoolPush( cr_sdp.bufpool, sdp_buffer, sdp_buffer->allocated );
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&cr_sdp.mutex);
#endif
break;
case CRSDPMemoryBig:
crFree( sdp_buffer );
break;
default:
crError( "Weird buffer kind trying to free in crSDPFree: %d", sdp_buffer->kind );
}
}
static void *
crSDPAlloc( CRConnection *conn )
{
CRSDPBuffer *buf;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&cr_sdp.mutex);
#endif
buf = (CRSDPBuffer *) crBufferPoolPop( cr_sdp.bufpool, conn->buffer_size );
if ( buf == NULL )
{
crDebug( "Buffer pool %p was empty, so I allocated %d bytes.\n\tI did so from the buffer: %p",
cr_sdp.bufpool,
(unsigned int)sizeof(CRSDPBuffer) + conn->buffer_size, &cr_sdp.bufpool );
buf = (CRSDPBuffer *)
crAlloc( sizeof(CRSDPBuffer) + conn->buffer_size );
buf->magic = CR_SDP_BUFFER_MAGIC;
buf->kind = CRSDPMemory;
buf->pad = 0;
buf->allocated = conn->buffer_size;
}
else {
CRASSERT(buf->magic == CR_SDP_BUFFER_MAGIC);
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&cr_sdp.mutex);
#endif
return (void *)( buf + 1 );
}
static void
crFileFree( CRConnection *conn, void *buf )
{
CRFileBuffer *file_buffer = (CRFileBuffer *) buf - 1;
CRASSERT( file_buffer->magic == CR_FILE_BUFFER_MAGIC );
conn->recv_credits += file_buffer->len;
switch ( file_buffer->kind )
{
case CRFileMemory:
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&cr_file.mutex);
#endif
crBufferPoolPush( cr_file.bufpool, file_buffer, conn->buffer_size );
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&cr_file.mutex);
#endif
break;
case CRFileMemoryBig:
crFree( file_buffer );
break;
default:
crError( "Weird buffer kind trying to free in crFileFree: %d", file_buffer->kind );
}
}
/**
* Add a message node to the end of the message list.
* \param list the message list
* \param msg points to start of message buffer
* \param len length of message, in bytes
* \param conn connection associated with message (may be NULL)
*/
void
crEnqueueMessage(CRMessageList *list, CRMessage *msg, unsigned int len,
CRConnection *conn)
{
CRMessageListNode *node;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&list->lock);
#endif
node = (CRMessageListNode *) crAlloc(sizeof(CRMessageListNode));
node->mesg = msg;
node->len = len;
node->conn = conn;
node->next = NULL;
/* insert at tail */
if (list->tail)
list->tail->next = node;
else
list->head = node;
list->tail = node;
list->numMessages++;
#ifdef CHROMIUM_THREADSAFE
crSignalCondition(&list->nonEmpty);
crUnlockMutex(&list->lock);
#endif
}
/**
* Simple logging. This will be called by either thread whenever an
* interesting event occurs.
*/
void
vncspuLog(int threadNum, const char *msg, int i)
{
#if SIMPLE_LOGGING
static FILE *logFile = NULL;
char tb[32];
int k;
struct timeval tv;
if (!logFile) {
/* one time init */
logFile = fopen("/tmp/vncspu.log", "w");
crInitMutex(&vnc_spu.logLock);
}
crLockMutex(&vnc_spu.logLock);
gettimeofday(&tv, NULL);
tv.tv_sec = tv.tv_sec % 10;
sprintf(tb, "%2u.%06u ", (unsigned) tv.tv_sec, (unsigned) tv.tv_usec);
fputs(tb, logFile);
for (k = 0; k < threadNum; k++)
fputs(" ", logFile);
fprintf(logFile, msg, i);
fputs("\n", logFile);
crUnlockMutex(&vnc_spu.logLock);
#endif
}
static void _crVBoxHGSMIFree(CRConnection *conn, void *buf)
{
CRVBOXHGSMIBUFFER *hgsmi_buffer = (CRVBOXHGSMIBUFFER *) buf - 1;
CRASSERT(hgsmi_buffer->magic == CR_VBOXHGSMI_BUFFER_MAGIC);
if (hgsmi_buffer->bIsBuf)
{
PVBOXUHGSMI_BUFFER pBuf = hgsmi_buffer->pBuffer;
PCRVBOXHGSMI_CLIENT pClient = (PCRVBOXHGSMI_CLIENT)pBuf->pvUserData;
pBuf->pfnUnlock(pBuf);
_crVBoxHGSMIBufFree(pClient, pBuf);
}
else
{
/*@todo wrong len for redir buffers*/
conn->recv_credits += hgsmi_buffer->u32Len;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&g_crvboxhgsmi.mutex);
#endif
crBufferPoolPush(g_crvboxhgsmi.mempool, hgsmi_buffer, hgsmi_buffer->cbLock);
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&g_crvboxhgsmi.mutex);
#endif
}
}
static void stubCheckWindowsState(void)
{
ContextInfo *context = stubGetCurrentContext();
CRASSERT(stub.trackWindowSize || stub.trackWindowPos);
if (!context)
return;
#if defined(WINDOWS) && defined(VBOX_WITH_WDDM)
if (stub.bRunningUnderWDDM)
return;
#endif
#if defined(CR_NEWWINTRACK) && !defined(WINDOWS)
crLockMutex(&stub.mutex);
#endif
stubCheckWindowState(context->currentDrawable, GL_TRUE);
crHashtableWalk(stub.windowTable, stubCheckWindowsCB, context);
#if defined(CR_NEWWINTRACK) && !defined(WINDOWS)
crUnlockMutex(&stub.mutex);
#endif
}
GLboolean crHashtableGetDataKey(CRHashTable *pHash, void *pData, unsigned long *pKey)
{
int i;
CRHashNode *entry;
GLboolean rc = GL_FALSE;
if (!pHash)
return rc;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&pHash->mutex);
#endif
for (i = 0; i<CR_NUM_BUCKETS && !rc; i++)
{
entry = pHash->buckets[i];
while (entry)
{
if (entry->data == pData) {
if (pKey)
*pKey = entry->key;
rc = GL_TRUE;
break;
}
entry = entry->next;
}
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&pHash->mutex);
#endif
return rc;
}
void FEEDBACKSPU_APIENTRY
feedbackspu_MakeCurrent( GLint window, GLint nativeWindow, GLint ctx )
{
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&feedback_spu.mutex);
#endif
feedback_spu.child.MakeCurrent(window, nativeWindow, ctx);
if (ctx) {
int slot;
GLint oldmode;
for (slot=0; slot<feedback_spu.numContexts; ++slot)
if (feedback_spu.context[slot].clientCtx == ctx) break;
CRASSERT(slot < feedback_spu.numContexts);
crStateMakeCurrent(feedback_spu.context[slot].clientState);
crStateGetIntegerv(GL_RENDER_MODE, &oldmode);
if (oldmode!=feedback_spu.render_mode)
{
feedback_spu.self.RenderMode(oldmode);
}
}
else
{
crStateMakeCurrent(NULL);
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&feedback_spu.mutex);
#endif
}
void FEEDBACKSPU_APIENTRY
feedbackspu_DestroyContext( GLint ctx )
{
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&feedback_spu.mutex);
#endif
feedback_spu.child.DestroyContext(ctx);
if (ctx) {
int slot;
for (slot=0; slot<feedback_spu.numContexts; ++slot)
if (feedback_spu.context[slot].clientCtx == ctx) break;
CRASSERT(slot < feedback_spu.numContexts);
crStateDestroyContext(feedback_spu.context[slot].clientState);
feedback_spu.context[slot].clientState = NULL;
feedback_spu.context[slot].clientCtx = 0;
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&feedback_spu.mutex);
#endif
}
void crHashtableWalk( CRHashTable *hash, CRHashtableWalkCallback walkFunc , void *dataPtr2)
{
int i;
CRHashNode *entry, *next;
if (!hash)
return;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&hash->mutex);
#endif
for (i = 0; i < CR_NUM_BUCKETS; i++)
{
entry = hash->buckets[i];
while (entry)
{
/* save next ptr here, in case walkFunc deletes this entry */
next = entry->next;
if (entry->data && walkFunc) {
(*walkFunc)( entry->key, entry->data, dataPtr2 );
}
entry = next;
}
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&hash->mutex);
#endif
}
static void
*crFileAlloc( CRConnection *conn )
{
CRFileBuffer *buf;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&cr_file.mutex);
#endif
buf = (CRFileBuffer *) crBufferPoolPop( cr_file.bufpool, conn->buffer_size );
if ( buf == NULL )
{
crDebug( "Buffer pool was empty, so I allocated %d bytes",
(int)(sizeof(CRFileBuffer) + conn->buffer_size) );
buf = (CRFileBuffer *)
crAlloc( sizeof(CRFileBuffer) + conn->buffer_size );
buf->magic = CR_FILE_BUFFER_MAGIC;
buf->kind = CRFileMemory;
buf->pad = 0;
buf->allocated = conn->buffer_size;
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&cr_file.mutex);
#endif
return (void *)( buf + 1 );
}
static void
crSDPSend( CRConnection *conn, void **bufp,
const void *start, unsigned int len )
{
CRSDPBuffer *sdp_buffer;
unsigned int *lenp;
if ( !conn || conn->type == CR_NO_CONNECTION )
return;
if ( bufp == NULL )
{
/* we are doing synchronous sends from user memory, so no need
* to get fancy. Simply write the length & the payload and
* return. */
const int sendable_len = conn->swap ? SWAP32(len) : len;
crSDPWriteExact( conn, &sendable_len, sizeof(len) );
if ( !conn || conn->type == CR_NO_CONNECTION) return;
crSDPWriteExact( conn, start, len );
return;
}
sdp_buffer = (CRSDPBuffer *)(*bufp) - 1;
CRASSERT( sdp_buffer->magic == CR_SDP_BUFFER_MAGIC );
/* All of the buffers passed to the send function were allocated
* with crSDPAlloc(), which includes a header with a 4 byte
* length field, to insure that we always have a place to write
* the length field, even when start == *bufp. */
lenp = (unsigned int *) start - 1;
if (conn->swap)
{
*lenp = SWAP32(len);
}
else
{
*lenp = len;
}
if ( __sdp_write_exact( conn->sdp_socket, lenp, len + sizeof(int) ) < 0 )
{
__sdp_dead_connection( conn );
}
/* reclaim this pointer for reuse and try to keep the client from
accidentally reusing it directly */
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&cr_sdp.mutex);
#endif
crBufferPoolPush( cr_sdp.bufpool, sdp_buffer, sdp_buffer->allocated );
/* Since the buffer's now in the 'free' buffer pool, the caller can't
* use it any more. Setting bufp to NULL will make sure the caller
* doesn't try to re-use the buffer.
*/
*bufp = NULL;
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&cr_sdp.mutex);
#endif
}
/*
* Allocate a new ThreadInfo structure, setup a connection to the
* server, allocate/init a packer context, bind this ThreadInfo to
* the calling thread with crSetTSD().
* We'll always call this function at least once even if we're not
* using threads.
*/
ThreadInfo *replicatespuNewThread( CRthread id )
{
ThreadInfo *thread;
#ifdef CHROMIUM_THREADSAFE_notyet
crLockMutex(&_ReplicateMutex);
#else
CRASSERT(replicate_spu.numThreads == 0);
#endif
CRASSERT(replicate_spu.numThreads < MAX_THREADS);
thread = &(replicate_spu.thread[replicate_spu.numThreads]);
thread->id = id;
thread->currentContext = NULL;
/* connect to the server */
thread->server.name = crStrdup( replicate_spu.name );
thread->server.buffer_size = replicate_spu.buffer_size;
if (replicate_spu.numThreads == 0) {
replicatespuConnectToServer( &(thread->server) );
CRASSERT(thread->server.conn);
replicate_spu.swap = thread->server.conn->swap;
}
else {
/* a new pthread */
replicatespuFlushAll( &(replicate_spu.thread[0]) );
crNetNewClient( replicate_spu.thread[0].server.conn, &(thread->server));
CRASSERT(thread->server.conn);
}
/* packer setup */
CRASSERT(thread->packer == NULL);
thread->packer = crPackNewContext( replicate_spu.swap );
CRASSERT(thread->packer);
crPackInitBuffer( &(thread->buffer), crNetAlloc(thread->server.conn),
thread->server.conn->buffer_size, thread->server.conn->mtu );
thread->buffer.canBarf = thread->server.conn->Barf ? GL_TRUE : GL_FALSE;
crPackSetBuffer( thread->packer, &thread->buffer );
crPackFlushFunc( thread->packer, replicatespuFlush );
crPackFlushArg( thread->packer, (void *) thread );
crPackSendHugeFunc( thread->packer, replicatespuHuge );
crPackSetContext( thread->packer );
#ifdef CHROMIUM_THREADSAFE_notyet
crSetTSD(&_ReplicateTSD, thread);
#endif
replicate_spu.numThreads++;
#ifdef CHROMIUM_THREADSAFE_notyet
crUnlockMutex(&_ReplicateMutex);
#endif
return thread;
}
void PACKSPU_APIENTRY packspu_VBoxPackSetInjectID(GLuint id)
{
crLockMutex(&_PackMutex);
{
GET_THREAD(thread);
CRASSERT(thread && thread->netServer.conn && thread->netServer.conn->type==CR_VBOXHGCM && thread->bInjectThread);
thread->netServer.conn->u32InjectClientID = id;
}
crUnlockMutex(&_PackMutex);
}
GLboolean crHashtableAllocRegisterKey( CRHashTable *h, GLuint key)
{
GLboolean fAllocated;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&h->mutex);
#endif
fAllocated = crHashIdPoolAllocId (h->idPool, key);
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&h->mutex);
#endif
return fAllocated;
}
void PACKSPU_APIENTRY packspu_Flush( void )
{
GET_THREAD(thread);
int writeback=1;
int found=0;
if (!thread->bInjectThread)
{
crPackFlush();
if (packspuSyncOnFlushes())
{
crPackWriteback(&writeback);
packspuFlush( (void *) thread );
while (writeback)
crNetRecv();
}
}
else
{
int i;
crLockMutex(&_PackMutex);
/*Make sure we process commands in order they should appear, so flush other threads first*/
for (i=0; i<MAX_THREADS; ++i)
{
if (pack_spu.thread[i].inUse
&& (thread != &pack_spu.thread[i]) && pack_spu.thread[i].netServer.conn
&& pack_spu.thread[i].packer && pack_spu.thread[i].packer->currentBuffer)
{
packspuFlush((void *) &pack_spu.thread[i]);
if (pack_spu.thread[i].netServer.conn->u32ClientID == thread->netServer.conn->u32InjectClientID)
{
found=1;
}
}
}
if (!found)
{
/*Thread we're supposed to inject commands for has been detached,
so there's nothing to sync with and we should just pass commands through our own connection.
*/
thread->netServer.conn->u32InjectClientID=0;
}
packspuFlush((void *) thread);
crUnlockMutex(&_PackMutex);
}
}
GLuint PACKSPU_APIENTRY packspu_VBoxPackGetInjectID(void)
{
GLuint ret;
crLockMutex(&_PackMutex);
{
GET_THREAD(thread);
CRASSERT(thread && thread->netServer.conn && thread->netServer.conn->type==CR_VBOXHGCM);
ret = thread->netServer.conn->u32ClientID;
}
crUnlockMutex(&_PackMutex);
return ret;
}
void PACKSPU_APIENTRY packspu_VBoxPackSetInjectThread(void)
{
crLockMutex(&_PackMutex);
{
int i;
GET_THREAD(thread);
CRASSERT(!thread);
CRASSERT((pack_spu.numThreads>0) && (pack_spu.numThreads<MAX_THREADS));
for (i=0; i<MAX_THREADS; ++i)
{
if (!pack_spu.thread[i].inUse)
{
thread = &pack_spu.thread[i];
break;
}
}
CRASSERT(thread);
thread->inUse = GL_TRUE;
thread->id = crThreadID();
thread->currentContext = NULL;
thread->bInjectThread = GL_TRUE;
thread->netServer.name = crStrdup(pack_spu.name);
thread->netServer.buffer_size = 64 * 1024;
crNetNewClient(pack_spu.thread[pack_spu.idxThreadInUse].netServer.conn, &(thread->netServer));
CRASSERT(thread->netServer.conn);
CRASSERT(thread->packer == NULL);
thread->packer = crPackNewContext( pack_spu.swap );
CRASSERT(thread->packer);
crPackInitBuffer(&(thread->buffer), crNetAlloc(thread->netServer.conn),
thread->netServer.conn->buffer_size, thread->netServer.conn->mtu);
thread->buffer.canBarf = thread->netServer.conn->Barf ? GL_TRUE : GL_FALSE;
crPackSetBuffer( thread->packer, &thread->buffer );
crPackFlushFunc( thread->packer, packspuFlush );
crPackFlushArg( thread->packer, (void *) thread );
crPackSendHugeFunc( thread->packer, packspuHuge );
crPackSetContext( thread->packer );
crSetTSD(&_PackTSD, thread);
pack_spu.numThreads++;
}
crUnlockMutex(&_PackMutex);
}
void crHashtableDelete( CRHashTable *h, unsigned long key, CRHashtableCallback deleteFunc )
{
unsigned int index = crHash( key );
CRHashNode *temp, *beftemp = NULL;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&h->mutex);
#endif
for ( temp = h->buckets[index]; temp; temp = temp->next )
{
if ( temp->key == key )
break;
beftemp = temp;
}
if ( !temp ) {
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&h->mutex);
#endif
return; /* not an error */
}
if ( beftemp )
beftemp->next = temp->next;
else
h->buckets[index] = temp->next;
h->num_elements--;
if (temp->data && deleteFunc) {
(*deleteFunc)( temp->data );
}
crFree( temp );
crHashIdPoolFreeBlock( h->idPool, key, 1 );
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&h->mutex);
#endif
}
void crHashtableAdd( CRHashTable *h, unsigned long key, void *data )
{
CRHashNode *node = (CRHashNode *) crCalloc( sizeof( CRHashNode ) );
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&h->mutex);
#endif
node->key = key;
node->data = data;
node->next = h->buckets[crHash( key )];
h->buckets[ crHash( key ) ] = node;
h->num_elements++;
crHashIdPoolAllocId (h->idPool, key);
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&h->mutex);
#endif
}
static void
crFileSend( CRConnection *conn, void **bufp, const void *start, unsigned int len )
{
CRFileBuffer *file_buffer;
unsigned int *lenp;
if ( bufp == NULL )
{
/* we are doing synchronous sends from user memory, so no need
* to get fancy. Simply write the length & the payload and
* return. */
if (conn->swap)
{
len = SWAP32(len);
}
crFileWriteExact( conn, &len, sizeof(len) );
crFileWriteExact( conn, start, len );
return;
}
file_buffer = (CRFileBuffer *)(*bufp) - 1;
CRASSERT( file_buffer->magic == CR_FILE_BUFFER_MAGIC );
/* All of the buffers passed to the send function were allocated
* with crFileAlloc(), which includes a header with a 4 byte
* length field, to insure that we always have a place to write
* the length field, even when start == *bufp. */
lenp = (unsigned int *) start - 1;
*lenp = len;
crFileWriteExact(conn, lenp, len + sizeof(int) );
/* reclaim this pointer for reuse and try to keep the client from
accidentally reusing it directly */
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&cr_file.mutex);
#endif
crBufferPoolPush( cr_file.bufpool, file_buffer, conn->buffer_size );
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&cr_file.mutex);
#endif
*bufp = NULL;
}
/**
* Remove first message node from message list and return it.
* Don't block.
* \return 1 if message was dequeued, 0 otherwise.
*/
static int
crDequeueMessageNoBlock(CRMessageList *list, CRMessage **msg,
unsigned int *len, CRConnection **conn)
{
int retval;
#ifdef CHROMIUM_THREADSAFE
crLockMutex(&list->lock);
#endif
if (list->head) {
CRMessageListNode *node = list->head;
/* unlink the node */
list->head = node->next;
if (!list->head) {
/* empty list */
list->tail = NULL;
}
*msg = node->mesg;
*len = node->len;
if (conn)
*conn = node->conn;
list->numMessages--;
crFree(node);
retval = 1;
}
else {
*msg = NULL;
*len = 0;
retval = 0;
}
#ifdef CHROMIUM_THREADSAFE
crUnlockMutex(&list->lock);
#endif
return retval;
}