-/* This file is part of
- * ======================================================
- *
- * LyX, The Document Processor
+/**
+ * \file lyxserver.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
*
- * Copyright 1995 Matthias Ettrich
- * Copyright 1995-2001 The LyX Team.
+ * \author Lars Gullik Bjønnes
+ * \author Jean-Marc Lasgouttes
+ * \author Angus Leeming
+ * \author John Levon
*
- * ====================================================== */
+ * Full author contact details are available in file CREDITS.
+ */
/**
Docu : To use the lyxserver define the name of the pipe in your
#include <config.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <cerrno>
-#include FORMS_H_LOCATION
-
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
#include "lyxserver.h"
-#include "lyx_main.h"
#include "debug.h"
+#include "funcrequest.h"
+#include "LyXAction.h"
#include "lyxfunc.h"
+#include "frontends/Application.h"
+
+#include "support/filename.h"
#include "support/lstrings.h"
#include "support/lyxlib.h"
-#include "frontends/lyx_gui.h"
-
-#ifdef __EMX__
-#include <cstdlib>
-#include <io.h>
-#define OS2EMX_PLAIN_CHAR
-#define INCL_DOSNMPIPES
-#define INCL_DOSERRORS
-#include <os2.h>
-#include "support/os2_errortable.h"
+
+#include <boost/bind.hpp>
+
+#include <cerrno>
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
#endif
+#include <fcntl.h>
+
+
+namespace lyx {
+
+using support::compare;
+using support::FileName;
+using support::rtrim;
+using support::split;
+using support::unlink;
using std::endl;
+using std::string;
+
+
+#if !defined (HAVE_MKFIFO)
+// We provide a stub class that disables the lyxserver.
+
+void LyXComm::openConnection()
+{}
-// provide an empty mkfifo() if we do not have one. This disables the
-// lyxserver.
-#ifndef HAVE_MKFIFO
-int mkfifo(char const * __path, mode_t __mode) {
- return 0;
+
+void LyXComm::closeConnection()
+{}
+
+
+int LyXComm::startPipe(string const & filename, bool write)
+{
+ return -1;
}
-#endif
+
+
+void LyXComm::endPipe(int & fd, string const & filename, bool write)
+{}
+
+
+void LyXComm::emergencyCleanup()
+{}
+
+void LyXComm::read_ready()
+{}
+
+
+void LyXComm::send(string const & msg)
+{}
+
+
+#else // defined (HAVE_MKFIFO)
void LyXComm::openConnection()
ready = false;
}
-int LyXComm::startPipe(string const & filename, bool write)
-{
- int fd;
-
-#ifdef __EMX__
- HPIPE os2fd;
- APIRET rc;
- int errnum;
- // Try create one instance of named pipe with the mode O_RDONLY|O_NONBLOCK.
- // The current emx implementation of access() won't work with pipes.
- rc = DosCreateNPipe(filename.c_str(), &os2fd, NP_ACCESS_INBOUND,
- NP_NOWAIT|0x01, 0600, 0600, 0);
- if (rc == ERROR_PIPE_BUSY) {
- lyxerr << "LyXComm: Pipe " << filename << " already exists.\n"
- << "If no other LyX program is active, please delete"
- " the pipe by hand and try again." << endl;
- pipename.erase();
- return -1;
- }
- if (rc != NO_ERROR) {
- errnum = TranslateOS2Error(rc);
- lyxerr <<"LyXComm: Could not create pipe " << filename
- << strerror(errnum) << endl;
- return -1;
- };
- // Listen to it.
- rc = DosConnectNPipe(os2fd);
- if (rc != NO_ERROR && rc != ERROR_PIPE_NOT_CONNECTED) {
- errnum = TranslateOS2Error(rc);
- lyxerr <<"LyXComm: Could not create pipe " << filename
- << strerror(errnum) << endl;
- return -1;
- };
- // Imported handles can be used both with OS/2 APIs and emx
- // library functions.
- fd = _imphandle(os2fd);
-#else
- if (::access(filename.c_str(), F_OK) == 0) {
+int LyXComm::startPipe(string const & file, bool write)
+{
+ FileName const filename(file);
+ if (::access(filename.toFilesystemEncoding().c_str(), F_OK) == 0) {
lyxerr << "LyXComm: Pipe " << filename << " already exists.\n"
<< "If no other LyX program is active, please delete"
" the pipe by hand and try again." << endl;
return -1;
}
- if (::mkfifo(filename.c_str(), 0600) < 0) {
+ if (::mkfifo(filename.toFilesystemEncoding().c_str(), 0600) < 0) {
lyxerr << "LyXComm: Could not create pipe " << filename << '\n'
<< strerror(errno) << endl;
return -1;
};
- fd = ::open(filename.c_str(), write ? (O_RDWR) : (O_RDONLY|O_NONBLOCK));
-#endif
+ int const fd = ::open(filename.toFilesystemEncoding().c_str(),
+ write ? (O_RDWR) : (O_RDONLY|O_NONBLOCK));
if (fd < 0) {
lyxerr << "LyXComm: Could not open pipe " << filename << '\n'
<< strerror(errno) << endl;
- lyx::unlink(filename);
+ unlink(filename);
return -1;
}
if (!write) {
- lyx_gui::set_read_callback(fd, this);
+ theApp()->registerSocketCallback(fd,
+ boost::bind(&LyXComm::read_ready, this));
}
return fd;
return;
if (!write) {
- lyx_gui::remove_read_callback(fd);
+ theApp()->unregisterSocketCallback(fd);
}
-
-#ifdef __EMX__
- APIRET rc;
- int errnum;
-
- rc = DosDisConnectNPipe(fd);
- if (rc != NO_ERROR) {
- errnum = TranslateOS2Error(rc);
- lyxerr << "LyXComm: Could not disconnect pipe " << filename
- << '\n' << strerror(errnum) << endl;
- return;
- }
-#endif
if (::close(fd) < 0) {
lyxerr << "LyXComm: Could not close pipe " << filename
<< '\n' << strerror(errno) << endl;
}
-// OS/2 pipes are deleted automatically
-#ifndef __EMX__
- if (lyx::unlink(filename) < 0) {
+ if (unlink(FileName(filename)) < 0) {
lyxerr << "LyXComm: Could not remove pipe " << filename
<< '\n' << strerror(errno) << endl;
};
-#endif
fd = -1;
}
// Receives messages and sends then to client
void LyXComm::read_ready()
{
- if (lyxerr.debugging(Debug::LYXSERVER)) {
- lyxerr << "LyXComm: Receiving from fd " << infd << endl;
- }
+ // nb! make read_buffer_ a class-member for multiple sessions
+ static string read_buffer_;
+ read_buffer_.erase();
- int const CMDBUFLEN = 100;
- char charbuf[CMDBUFLEN];
- string cmd;
-// nb! make lsbuf a class-member for multiple sessions
- static string lsbuf;
+ int const charbuf_size = 100;
+ char charbuf[charbuf_size];
errno = 0;
int status;
// the single = is intended here.
- while ((status = read(infd, charbuf, CMDBUFLEN - 1))) {
- int rerrno = errno;
-
+ while ((status = ::read(infd, charbuf, charbuf_size - 1))) {
+
if (status > 0) {
- charbuf[status]= '\0'; // turn it into a c string
- lsbuf += rtrim(charbuf, "\r");
+ charbuf[status] = '\0'; // turn it into a c string
+ read_buffer_ += rtrim(charbuf, "\r");
// commit any commands read
- while (lsbuf.find('\n') != string::npos) {
+ while (read_buffer_.find('\n') != string::npos) {
// split() grabs the entire string if
// the delim /wasn't/ found. ?:-P
- lsbuf= split(lsbuf, cmd,'\n');
+ string cmd;
+ read_buffer_= split(read_buffer_, cmd,'\n');
lyxerr[Debug::LYXSERVER]
<< "LyXComm: status:" << status
- << ", lsbuf:" << lsbuf
+ << ", read_buffer_:" << read_buffer_
<< ", cmd:" << cmd << endl;
if (!cmd.empty())
clientcb(client, cmd);
//\n or not \n?
}
}
- if (rerrno == EAGAIN) {
+ if (errno == EAGAIN) {
errno = 0;
return;
}
- if (rerrno != 0) {
- lyxerr << "LyXComm: " << strerror(rerrno) << endl;
- if (!lsbuf.empty()) {
+ if (errno != 0) {
+ lyxerr << "LyXComm: " << strerror(errno) << endl;
+ if (!read_buffer_.empty()) {
lyxerr << "LyXComm: truncated command: "
- << lsbuf << endl;
- lsbuf.erase();
+ << read_buffer_ << endl;
+ read_buffer_.erase();
}
break; // reset connection
}
}
+
+ // The connection gets reset in errno != EAGAIN
+ // Why does it need to be reset if errno == 0?
closeConnection();
openConnection();
- errno= 0;
+ errno = 0;
}
closeConnection();
openConnection();
}
-#ifdef __EMX__
- APIRET rc;
- int errnum;
- rc = DosResetBuffer(outfd); // To avoid synchronization problems.
- if (rc != NO_ERROR) {
- errnum = TranslateOS2Error(rc);
- lyxerr << "LyXComm: Message could not be flushed: " << msg
- << '\n' << strerror(errnum) << endl;
- }
-#endif
+}
+
+#endif // defined (HAVE_MKFIFO)
+
+
+string const LyXComm::inPipeName() const
+{
+ return pipename + string(".in");
+}
+
+
+string const LyXComm::outPipeName() const
+{
+ return pipename + string(".out");
}
if (compare(p, "LYXSRV:", 7) == 0) {
server_only = true;
} else if (0 != compare(p, "LYXCMD:", 7)) {
- lyxerr << "LyXServer: Unknown request \"" << p << "\"" << endl;
+ lyxerr << "LyXServer: Unknown request \""
+ << p << '"' << endl;
return;
}
p += 7;
}
} else {
lyxerr <<"LyXServer: Undefined server command "
- << cmd << "." << endl;
+ << cmd << '.' << endl;
}
return;
}
// support currently. (Lgb)
- serv->func->dispatch(cmd + ' ' + arg);
- string const rval = serv->func->getMessage();
+ serv->func->dispatch(FuncRequest(lyxaction.lookupFunc(cmd), arg));
+ string const rval = to_utf8(serv->func->getMessage());
//modified june 1999 stefano@zool.su.se:
//all commands produce an INFO or ERROR message
buf = "ERROR:";
else
buf = "INFO:";
- buf += client + ":" + cmd + ":" + rval + "\n";
+ buf += client + ':' + cmd + ':' + rval + '\n';
serv->pipes.send(buf);
// !!! we don't do any error checking -
string buf = string("NOTIFY:") + s + "\n";
pipes.send(buf);
}
+
+
+} // namespace lyx
projects / lyx.git / blobdiff