Avoid full metrics computation with Update:FitCursor

[lyx.git] / src / Server.cpp

diff --git a/src/Server.cpp b/src/Server.cpp
index 1de758a5f46bd1b9507c9e2ad9b213d9a015c550..522060e91b6a70682b7ad0163ae9449cafbb240e 100644 (file)
--- a/src/Server.cpp
+++ b/src/Server.cpp
@@ -56,11 +56,15 @@
 #include "support/lstrings.h"
 #include "support/os.h"
 
-#include "support/bind.h"
+#include <iostream>
 
 #ifdef _WIN32
-#include <io.h>
-#include <QCoreApplication>
+# include <io.h>
+# include <QCoreApplication>
+#else
+# ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+# endif
 #endif
 #include <QThread>
 
@@ -116,7 +120,7 @@ string errormsg(DWORD const error)
        return message;
 }
 
-} // namespace anon
+} // namespace
 
 
 DWORD WINAPI pipeServerWrapper(void * arg)
@@ -136,14 +140,14 @@ DWORD WINAPI pipeServerWrapper(void * arg)
 
 
 LyXComm::LyXComm(string const & pip, Server * cli, ClientCallbackfct ccb)
-       : pipename_(pip), client_(cli), clientcb_(ccb), stopserver_(0)
+       : stopserver_(0),
+         ready_(false), pipename_(pip), client_(cli), clientcb_(ccb),
+         deferred_loading_(false)
 {
        for (int i = 0; i < MAX_PIPES; ++i) {
                event_[i] = 0;
                pipe_[i].handle = INVALID_HANDLE_VALUE;
        }
-       ready_ = false;
-       deferred_loading_ = false;
        openConnection();
 }
 
@@ -171,7 +175,7 @@ bool LyXComm::pipeServer()
 
                pipe_[i].overlap.hEvent = event_[i];
                pipe_[i].iobuf.erase();
-               pipe_[i].handle = CreateNamedPipe(pipename.c_str(),
+               pipe_[i].handle = CreateNamedPipeA(pipename.c_str(),
                                open_mode | FILE_FLAG_OVERLAPPED, PIPE_WAIT,
                                MAX_CLIENTS, PIPE_BUFSIZE, PIPE_BUFSIZE,
                                PIPE_TIMEOUT, NULL);
@@ -198,8 +202,8 @@ bool LyXComm::pipeServer()
        LYXERR(Debug::LYXSERVER, "LyXComm: Connection established");
        ready_ = true;
        outbuf_.erase();
-       DWORD status;
-       bool success;
+       DWORD status = 0;
+       bool success = false;
 
        while (!checkStopServer()) {
                // Indefinitely wait for the completion of an overlapped
@@ -209,7 +213,7 @@ bool LyXComm::pipeServer()
 
                // Determine which pipe instance completed the operation.
                i = wait - WAIT_OBJECT_0;
-               LASSERT(i >= 0 && i <= MAX_PIPES, /**/);
+               LASSERT(i <= MAX_PIPES, /**/);
 
                // Check whether we were waked up for stopping the pipe server.
                if (i == MAX_PIPES)
@@ -355,7 +359,7 @@ bool LyXComm::pipeServer()
 
                        error = GetLastError();
 
-                       if (success && error == ERROR_IO_PENDING) {
+                       if (success && (error == ERROR_IO_PENDING || error == NO_ERROR)) {
                                // The write operation is still pending.
                                // We get here when a reader is started
                                // well before a reply is ready, so delay
@@ -377,6 +381,9 @@ bool LyXComm::pipeServer()
                        if (!resetPipe(i, !success))
                                return false;
                        break;
+               case CONNECTING_STATE:
+                       LYXERR0("Wrong pipe state");
+                       break;
                }
        }
 
@@ -482,7 +489,7 @@ bool LyXComm::resetPipe(DWORD index, bool close_handle)
                CloseHandle(pipe_[index].handle);
 
                pipe_[index].iobuf.erase();
-               pipe_[index].handle = CreateNamedPipe(name.c_str(),
+               pipe_[index].handle = CreateNamedPipeA(name.c_str(),
                                open_mode | FILE_FLAG_OVERLAPPED, PIPE_WAIT,
                                MAX_CLIENTS, PIPE_BUFSIZE, PIPE_BUFSIZE,
                                PIPE_TIMEOUT, NULL);
@@ -520,7 +527,7 @@ void LyXComm::openConnection()
        }
 
        // Check whether the pipe name is being used by some other instance.
-       if (!stopserver_ && WaitNamedPipe(inPipeName().c_str(), 0)) {
+       if (!stopserver_ && WaitNamedPipeA(inPipeName().c_str(), 0)) {
                // Tell the running instance to load the files
                if (run_mode == USE_REMOTE && loadFilesInOtherInstance()) {
                        deferred_loading_ = true;
@@ -729,10 +736,10 @@ void LyXComm::send(string const & msg)
 #else // defined (HAVE_MKFIFO)
 
 LyXComm::LyXComm(string const & pip, Server * cli, ClientCallbackfct ccb)
-       : pipename_(pip), client_(cli), clientcb_(ccb)
+       : infd_(-1), outfd_(-1),
+         ready_(false), pipename_(pip), client_(cli), clientcb_(ccb),
+         deferred_loading_(false)
 {
-       ready_ = false;
-       deferred_loading_ = false;
        openConnection();
 }
 
@@ -857,8 +864,12 @@ int LyXComm::startPipe(string const & file, bool write)
        }
 
        if (!write) {
-               theApp()->registerSocketCallback(fd,
-                       bind(&LyXComm::read_ready, this));
+               // Make sure not to call read_ready after destruction.
+               weak_ptr<void> tracker = tracker_.p();
+               theApp()->registerSocketCallback(fd, [this, tracker](){
+                               if (!tracker.expired())
+                                       read_ready();
+                       });
        }
 
        return fd;
@@ -878,7 +889,7 @@ void LyXComm::endPipe(int & fd, string const & filename, bool write)
                       << '\n' << strerror(errno) << endl;
        }
 
-       if (FileName(filename).removeFile() < 0) {
+       if (!FileName(filename).removeFile()) {
                lyxerr << "LyXComm: Could not remove pipe " << filename
                       << '\n' << strerror(errno) << endl;
        }
@@ -992,14 +1003,30 @@ struct Sleep : QThread
        }
 };
 
-} // namespace anon
+} // namespace
 
 
-bool LyXComm::loadFilesInOtherInstance()
+bool LyXComm::loadFilesInOtherInstance() const
 {
        int pipefd;
-       int loaded_files = 0;
        FileName const pipe(inPipeName());
+
+       if (theFilesToLoad().empty()) {
+               LYXERR0("LyX is already running in another instance\n"
+                       "and 'use single instance' is active.");
+               // Wait a while for the other instance to reset the connection
+               Sleep::millisec(200);
+               pipefd = ::open(pipe.toFilesystemEncoding().c_str(), O_WRONLY);
+               if (pipefd >= 0) {
+                       string const cmd = "LYXCMD:pipe:window-raise\n";
+                       if (::write(pipefd, cmd.c_str(), cmd.length()) < 0)
+                               LYXERR0("Cannot communicate with running instance!");
+                       ::close(pipefd);
+               }
+               return true;
+       }
+
+       int loaded_files = 0;
        vector<string>::iterator it = theFilesToLoad().begin();
        while (it != theFilesToLoad().end()) {
                FileName fname = fileSearch(string(), os::internal_path(*it),
@@ -1157,7 +1184,7 @@ void Server::callback(string const & msg)
                                                << client << " said goodbye");
                                } else {
                                        LYXERR(Debug::LYXSERVER,
-                                               "Server: ignoring bye messge from unregistered client" << client);
+                                               "Server: ignoring bye message from unregistered client" << client);
                                }
                        } else {
                                LYXERR0("Server: Undefined server command " << cmd << '.');
@@ -1173,7 +1200,7 @@ void Server::callback(string const & msg)
                        // connect to the lyxfunc in the single GuiView we
                        // support currently. (Lgb)
 
-                       FuncRequest fr(lyxaction.lookupFunc(cmd), arg);
+                       FuncRequest fr(lyxaction.lookupFunc(cmd), from_utf8(arg));
                        fr.setOrigin(FuncRequest::LYXSERVER);
                        DispatchResult dr;
                        theApp()->dispatch(fr, dr);