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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla IPC.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "prlog.h"
#include "prio.h"
#include "ipcConfig.h"
#include "ipcLog.h"
#include "ipcMessage.h"
#include "ipcClient.h"
#include "ipcModuleReg.h"
#include "ipcModule.h"
#include "ipcCommandModule.h"
#include "ipcdPrivate.h"
#include "ipcd.h"
//-----------------------------------------------------------------------------
void
IPC_NotifyParent()
{
PRFileDesc *fd = PR_GetInheritedFD(IPC_STARTUP_PIPE_NAME);
if (fd) {
char c = IPC_STARTUP_PIPE_MAGIC;
PR_Write(fd, &c, 1);
PR_Close(fd);
}
}
//-----------------------------------------------------------------------------
PRStatus
IPC_DispatchMsg(ipcClient *client, const ipcMessage *msg)
{
PR_ASSERT(client);
PR_ASSERT(msg);
// remember if client is expecting SYNC_REPLY. we'll add that flag to the
// next message sent to the client.
if (msg->TestFlag(IPC_MSG_FLAG_SYNC_QUERY)) {
PR_ASSERT(client->GetExpectsSyncReply() == PR_FALSE);
// XXX shouldn't we remember the TargetID as well, and only set the
// SYNC_REPLY flag on the next message sent to the same TargetID?
client->SetExpectsSyncReply(PR_TRUE);
}
if (msg->Target().Equals(IPCM_TARGET)) {
IPCM_HandleMsg(client, msg);
return PR_SUCCESS;
}
return IPC_DispatchMsg(client, msg->Target(), msg->Data(), msg->DataLen());
}
PRStatus
IPC_SendMsg(ipcClient *client, ipcMessage *msg)
{
PR_ASSERT(msg);
if (client == NULL) {
//
// broadcast
//
for (int i=0; i<ipcClientCount; ++i)
IPC_SendMsg(&ipcClients[i], msg->Clone());
delete msg;
return PR_SUCCESS;
}
// add SYNC_REPLY flag to message if client is expecting...
if (client->GetExpectsSyncReply()) {
msg->SetFlag(IPC_MSG_FLAG_SYNC_REPLY);
client->SetExpectsSyncReply(PR_FALSE);
}
if (client->HasTarget(msg->Target()))
return IPC_PlatformSendMsg(client, msg);
LOG((" no registered message handler\n"));
return PR_FAILURE;
}
void
IPC_NotifyClientUp(ipcClient *client)
{
LOG(("IPC_NotifyClientUp: clientID=%d\n", client->ID()));
// notify modules before other clients
IPC_NotifyModulesClientUp(client);
for (int i=0; i<ipcClientCount; ++i) {
if (&ipcClients[i] != client)
IPC_SendMsg(&ipcClients[i],
new ipcmMessageClientState(client->ID(), IPCM_CLIENT_STATE_UP));
}
}
void
IPC_NotifyClientDown(ipcClient *client)
{
LOG(("IPC_NotifyClientDown: clientID=%d\n", client->ID()));
// notify modules before other clients
IPC_NotifyModulesClientDown(client);
for (int i=0; i<ipcClientCount; ++i) {
if (&ipcClients[i] != client)
IPC_SendMsg(&ipcClients[i],
new ipcmMessageClientState(client->ID(), IPCM_CLIENT_STATE_DOWN));
}
}
//-----------------------------------------------------------------------------
// IPC daemon methods
//-----------------------------------------------------------------------------
PRStatus
IPC_SendMsg(ipcClient *client, const nsID &target, const void *data, PRUint32 dataLen)
{
return IPC_SendMsg(client, new ipcMessage(target, (const char *) data, dataLen));
}
ipcClient *
IPC_GetClientByID(PRUint32 clientID)
{
// linear search OK since number of clients should be small
for (int i = 0; i < ipcClientCount; ++i) {
if (ipcClients[i].ID() == clientID)
return &ipcClients[i];
}
return NULL;
}
ipcClient *
IPC_GetClientByName(const char *name)
{
// linear search OK since number of clients should be small
for (int i = 0; i < ipcClientCount; ++i) {
if (ipcClients[i].HasName(name))
return &ipcClients[i];
}
return NULL;
}
void
IPC_EnumClients(ipcClientEnumFunc func, void *closure)
{
PR_ASSERT(func);
for (int i = 0; i < ipcClientCount; ++i) {
if (func(closure, &ipcClients[i], ipcClients[i].ID()) == PR_FALSE)
break;
}
}
PRUint32
IPC_GetClientID(ipcClient *client)
{
PR_ASSERT(client);
return client->ID();
}
PRBool
IPC_ClientHasName(ipcClient *client, const char *name)
{
PR_ASSERT(client);
PR_ASSERT(name);
return client->HasName(name);
}
PRBool
IPC_ClientHasTarget(ipcClient *client, const nsID &target)
{
PR_ASSERT(client);
return client->HasTarget(target);
}
void
IPC_EnumClientNames(ipcClient *client, ipcClientNameEnumFunc func, void *closure)
{
PR_ASSERT(client);
PR_ASSERT(func);
const ipcStringNode *node = client->Names();
while (node) {
if (func(closure, client, node->Value()) == PR_FALSE)
break;
node = node->mNext;
}
}
void
IPC_EnumClientTargets(ipcClient *client, ipcClientTargetEnumFunc func, void *closure)
{
PR_ASSERT(client);
PR_ASSERT(func);
const ipcIDNode *node = client->Targets();
while (node) {
if (func(closure, client, node->Value()) == PR_FALSE)
break;
node = node->mNext;
}
}
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