// -*- C++ -*-
/* This file is part of
- * ======================================================
+ * ======================================================
*
* LyX, The Document Processor
*
* Copyright 1995 Matthias Ettrich
- * Copyright 1995-1998 The LyX Team.
+ * Copyright 1995-2001 The LyX Team.
*
- * ======================================================*/
+ * ====================================================== */
/**
Docu : To use the lyxserver define the name of the pipe in your
#include <config.h>
-#include <cstring>
-#include <cstdio>
+//#include <cstring>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#endif
#include "lyxserver.h"
-#include "lyxfunc.h"
#include "lyx_main.h"
-#include "error.h"
+#include "debug.h"
+#include "LyXAction.h"
+#include "lyxfunc.h"
#include "support/lstrings.h"
+#include "support/lyxlib.h"
#ifdef __EMX__
#include <cstdlib>
#include "os2_errortable.h"
#endif
+using std::endl;
+
// provide an empty mkfifo() if we do not have one. This disables the
// lyxserver.
#ifndef HAVE_MKFIFO
-int mkfifo( char *__path, mode_t __mode ) {
- return 0;
+int mkfifo(char const * __path, mode_t __mode) {
+ return 0;
}
#endif
extern LyXAction lyxaction;
+// C wrapper
+extern "C" void C_LyXComm_callback(int fd, void *v);
+
+
// LyXComm class
// Open pipes
void LyXComm::openConnection() {
- lyxerr.debug("LyXComm: Opening connection", Error::LYXSERVER);
+ lyxerr[Debug::LYXSERVER] << "LyXComm: Opening connection" << endl;
// If we are up, that's an error
if (ready) {
- lyxerr.print("LyXComm: Already connected");
+ lyxerr << "LyXComm: Already connected" << endl;
return;
}
// We assume that we don't make it
NP_NOWAIT|0x01, 0600, 0600, 0);
if (rc == ERROR_PIPE_BUSY) {
#else
- if (access(tmp.c_str(), F_OK) == 0) {
+ if (::access(tmp.c_str(), F_OK) == 0) {
#endif
- lyxerr.print("LyXComm: Pipe " + tmp + " already exists.");
- lyxerr.print("If no other LyX program is active, please delete"
- " the pipe by hand and try again.");
- pipename = string();
+ lyxerr << "LyXComm: Pipe " << tmp << " already exists.\n"
+ << "If no other LyX program is active, please delete"
+ " the pipe by hand and try again." << endl;
+ pipename.erase();
return;
}
#ifndef __EMX__
- if (mkfifo(tmp.c_str(), 0600) < 0) {
- lyxerr.print("LyXComm: Could not create pipe " + tmp);
- lyxerr.print(strerror(errno));
+ if (::mkfifo(tmp.c_str(), 0600) < 0) {
+ lyxerr << "LyXComm: Could not create pipe " << tmp << '\n'
+ << strerror(errno) << endl;
return;
};
- infd = open(tmp.c_str(), O_RDONLY|O_NONBLOCK);
+ infd = ::open(tmp.c_str(), O_RDONLY|O_NONBLOCK);
#else
if (rc != NO_ERROR) {
errnum = TranslateOS2Error(rc);
- lyxerr.print("LyXComm: Could not create pipe " + tmp);
- lyxerr.print(strerror(errnum));
+ lyxerr <<"LyXComm: Could not create pipe " << tmp
+ << strerror(errnum) << endl;
return;
};
// Listen to it.
rc = DosConnectNPipe(fd);
if (rc != NO_ERROR && rc != ERROR_PIPE_NOT_CONNECTED) {
errnum = TranslateOS2Error(rc);
- lyxerr.print("LyXComm: Could not create pipe " + tmp);
- lyxerr.print(strerror(errnum));
+ lyxerr <<"LyXComm: Could not create pipe " << tmp
+ << strerror(errnum) << endl;
return;
};
// Imported handles can be used both with OS/2 APIs and emx
infd = _imphandle(fd);
#endif
if (infd < 0) {
- lyxerr.print("LyXComm: Could not open pipe " + tmp);
- lyxerr.print(strerror(errno));
+ lyxerr << "LyXComm: Could not open pipe " << tmp << '\n'
+ << strerror(errno) << endl;
return;
}
- fl_add_io_callback(infd, FL_READ, callback, (void*)this);
+ fl_add_io_callback(infd, FL_READ, C_LyXComm_callback, this);
// --- prepare output pipe ---------------------------------------
tmp = pipename + ".out";
#ifndef __EMX__
- if (access(tmp.c_str(), F_OK) == 0) {
+ if (::access(tmp.c_str(), F_OK) == 0) {
#else
rc = DosCreateNPipe(tmp.c_str(), &fd, NP_ACCESS_DUPLEX,
NP_NOWAIT|0x01, 0600, 0600, 0);
if (rc == ERROR_PIPE_BUSY) {
#endif
- lyxerr.print("LyXComm: Pipe " + tmp + " already exists.");
- lyxerr.print("If no other LyX program is active, please delete"
- " the pipe by hand and try again.");
- pipename = string();
+ lyxerr << "LyXComm: Pipe " << tmp << " already exists.\n"
+ << "If no other LyX program is active, please delete"
+ " the pipe by hand and try again." << endl;
+ pipename.erase();
return;
}
#ifndef __EMX__
- if (mkfifo(tmp.c_str(), 0600) < 0) {
- lyxerr.print("LyXComm: Could not create pipe " + tmp);
- lyxerr.print(strerror(errno));
+ if (::mkfifo(tmp.c_str(), 0600) < 0) {
+ lyxerr << "LyXComm: Could not create pipe " << tmp << '\n'
+ << strerror(errno) << endl;
return;
};
- if (access(tmp.c_str(), F_OK) != 0) {
- lyxerr.print("LyXComm: Pipe " + tmp + " does not exist");
+ if (::access(tmp.c_str(), F_OK) != 0) {
+ lyxerr << "LyXComm: Pipe " << tmp
+ << " does not exist" << endl;
return;
}
- outfd = open(tmp.c_str(), O_RDWR);
+ outfd = ::open(tmp.c_str(), O_RDWR);
#else
if (rc != NO_ERROR) {
errnum = TranslateOS2Error(rc);
- lyxerr.print("LyXComm: Could not create pipe " + tmp);
- lyxerr.print(strerror(errnum));
+ lyxerr << "LyXComm: Could not create pipe " << tmp << '\n'
+ << strerror(errnum) << endl;
return;
}
rc = DosConnectNPipe(fd);
if (rc == ERROR_BAD_PIPE) {
- lyxerr.print("LyXComm: Pipe " + tmp + " does not exist");
+ lyxerr << "LyXComm: Pipe " << tmp
+ << " does not exist" << endl;
return;
}
if (rc != NO_ERROR && rc != ERROR_PIPE_NOT_CONNECTED) {
errnum = TranslateOS2Error(rc);
- lyxerr.print("LyXComm: Could not create pipe " + tmp);
- lyxerr.print(strerror(errnum));
+ lyxerr << "LyXComm: Could not create pipe " << tmp << '\n'
+ << strerror(errnum) << endl;
return;
}
outfd = _imphandle(fd);
#endif
if (outfd < 0) {
- lyxerr.print("LyXComm: Could not open pipe " + tmp);
- lyxerr.print(strerror(errno));
+ lyxerr << "LyXComm: Could not open pipe " << tmp << '\n'
+ << strerror(errno) << endl;
return;
}
if (fcntl(outfd, F_SETFL, O_NONBLOCK) < 0) {
- lyxerr.print("LyXComm: Could not set flags on pipe " + tmp);
- lyxerr.print(strerror(errno));
+ lyxerr << "LyXComm: Could not set flags on pipe " << tmp
+ << '\n' << strerror(errno) << endl;
return;
};
// We made it!
ready = true;
- lyxerr.debug("LyXComm: Connection established", Error::LYXSERVER);
+ lyxerr[Debug::LYXSERVER] << "LyXComm: Connection established" << endl;
}
/// Close pipes
APIRET rc;
int errnum;
#endif
- lyxerr.debug("LyXComm: Closing connection", Error::LYXSERVER);
+ lyxerr[Debug::LYXSERVER] << "LyXComm: Closing connection" << endl;
if (pipename.empty()) {
return;
}
if (!ready) {
- lyxerr.print("LyXComm: Already disconnected");
+ lyxerr << "LyXComm: Already disconnected" << endl;
return;
}
- if(infd > -1) {
- fl_remove_io_callback(infd, FL_READ, callback);
+ if (infd > -1) {
+ fl_remove_io_callback(infd, FL_READ, C_LyXComm_callback);
string tmp = pipename + ".in";
#ifdef __EMX__ // Notify the operating system.
rc = DosDisConnectNPipe(infd);
if (rc != NO_ERROR) {
errnum = TranslateOS2Error(rc);
- lyxerr.print("LyXComm: Could not disconnect pipe " + tmp);
- lyxerr.print(strerror(errnum));
+ lyxerr << "LyXComm: Could not disconnect pipe " << tmp
+ << '\n' << strerror(errnum) << endl;
return;
}
#endif
if (close(infd) < 0) {
- lyxerr.print("LyXComm: Could not close pipe " + tmp);
- lyxerr.print(strerror(errno));
+ lyxerr << "LyXComm: Could not close pipe " << tmp
+ << '\n' << strerror(errno) << endl;
}
#ifndef __EMX__ // OS/2 named pipes will be automatically removed.
- if (unlink(tmp.c_str()) < 0){
- lyxerr.print("LyXComm: Could not remove pipe " + tmp);
- lyxerr.print(strerror(errno));
+ if (lyx::unlink(tmp) < 0){
+ lyxerr << "LyXComm: Could not remove pipe " << tmp
+ << '\n' << strerror(errno) << endl;
};
#endif
}
- if(outfd > -1) {
+ if (outfd > -1) {
string tmp = pipename + ".out";
#ifdef __EMX__
rc = DosDisConnectNPipe(outfd);
if (rc != NO_ERROR) {
errnum = TranslateOS2Error(rc);
- lyxerr.print("LyXComm: Could not disconnect pipe " + tmp);
- lyxerr.print(strerror(errnum));
+ lyxerr << "LyXComm: Could not disconnect pipe " << tmp
+ << '\n' << strerror(errnum) << endl;
return;
}
#endif
- if (close(outfd) < 0) {
- lyxerr.print("LyXComm: Could not close pipe " + tmp);
- lyxerr.print(strerror(errno));
+ if (::close(outfd) < 0) {
+ lyxerr << "LyXComm: Could not close pipe " << tmp
+ << '\n' << strerror(errno) << endl;
}
#ifndef __EMX__
- if (unlink(tmp.c_str()) < 0){
- lyxerr.print("LyXComm: Could not remove pipe " + tmp);
- lyxerr.print(strerror(errno));
+ if (lyx::unlink(tmp) < 0){
+ lyxerr << "LyXComm: Could not remove pipe " << tmp
+ << '\n' << strerror(errno) << endl;
};
#endif
}
// Receives messages and sends then to client
void LyXComm::callback(int fd, void *v)
{
- LyXComm * c = (LyXComm *) v;
+ LyXComm * c = static_cast<LyXComm*>(v);
- if (lyxerr.debugging(Error::LYXSERVER)) {
- lyxerr.print(string("LyXComm: Receiving from fd ") + tostr(fd));
+ if (lyxerr.debugging(Debug::LYXSERVER)) {
+ lyxerr << "LyXComm: Receiving from fd " << fd << endl;
}
const int CMDBUFLEN = 100;
errno = 0;
int status;
// the single = is intended here.
- while((status = read(fd,charbuf,CMDBUFLEN-1)))
+ while((status = read(fd, charbuf, CMDBUFLEN-1)))
{// break and return in loop
- if(status > 0) // got something
+ if (status > 0) // got something
{
- charbuf[status]='\0'; // turn it into a c string
+ charbuf[status]= '\0'; // turn it into a c string
lsbuf += strip(charbuf, '\r');
// commit any commands read
while(lsbuf.find('\n') != string::npos) // while still
{
// split() grabs the entire string if
// the delim /wasn't/ found. ?:-P
- lsbuf=split(lsbuf, cmd,'\n');
- lyxerr.debug(string("LyXComm: status:")
- + tostr(status) + ", lsbuf:" + lsbuf
- + ", cmd:" + cmd,
- Error::LYXSERVER);
- if(!cmd.empty())
+ lsbuf= split(lsbuf, cmd,'\n');
+ lyxerr[Debug::LYXSERVER]
+ << "LyXComm: status:" << status
+ << ", lsbuf:" << lsbuf
+ << ", cmd:" << cmd << endl;
+ if (!cmd.empty())
c->clientcb(c->client, cmd);
//\n or not \n?
}
}
- if(errno == EAGAIN)
+ if (errno == EAGAIN)
{ // EAGAIN is not really an error , it means we're
// only reading too fast for the writing process on
// the other end of the pipe.
errno = 0;
return; // up to libforms select-loop (*crunch*)
}
- if(errno != 0 )
+ if (errno != 0 )
{
- lyxerr.print(string("LyXComm: ") + strerror(errno));
- if(!lsbuf.empty())
+ lyxerr << "LyXComm: " << strerror(errno) << endl;
+ if (!lsbuf.empty())
{
- lyxerr.print("LyxComm: truncated command: "
- + lsbuf);
+ lyxerr << "LyxComm: truncated command: "
+ << lsbuf << endl;
lsbuf.erase();
}
break; // reset connection
}
c->closeConnection();
c->openConnection();
- errno=0;
+ errno= 0;
}
+
+extern "C" void C_LyXComm_callback(int fd, void *v)
+{
+ LyXComm::callback(fd, v);
+}
+
void LyXComm::send(string const & msg) {
if (msg.empty()) {
- lyxerr.print("LyXComm: Request to send empty string. Ignoring.");
+ lyxerr << "LyXComm: Request to send empty string. Ignoring."
+ << endl;
return;
}
- if (lyxerr.debugging(Error::LYXSERVER)) {
- lyxerr.print("LyXComm: Sending '" + msg + '\'');
+ if (lyxerr.debugging(Debug::LYXSERVER)) {
+ lyxerr << "LyXComm: Sending '" << msg << '\'' << endl;
}
if (pipename.empty()) return;
if (!ready) {
- lyxerr.print("LyXComm: Pipes are closed. Could not send "+ msg);
- } else if (write(outfd, msg.c_str(), msg.length()) < 0) {
- lyxerr.print("LyXComm: Error sending message: " + msg);
- lyxerr.print(strerror(errno));
- lyxerr.print("LyXComm: Resetting connection");
+ lyxerr << "LyXComm: Pipes are closed. Could not send "
+ << msg << endl;
+ } else if (::write(outfd, msg.c_str(), msg.length()) < 0) {
+ lyxerr << "LyXComm: Error sending message: " << msg
+ << '\n' << strerror(errno)
+ << "\nLyXComm: Resetting connection" << endl;
closeConnection();
openConnection();
}
rc = DosResetBuffer(outfd); // To avoid synchronization problems.
if (rc != NO_ERROR) {
errnum = TranslateOS2Error(rc);
- lyxerr.print("LyXComm: Message could not be flushed: " +msg);
- lyxerr.print(strerror(errnum));
+ lyxerr << "LyXComm: Message could not be flushed: " << msg
+ << '\n' << strerror(errnum) << endl;
}
#endif
}
// modified june 1999 by stefano@zool.su.se to send as many bye
// messages as there are clients, each with client's name.
string message;
- for (int i=0; i<numclients; i++) {
+ for (int i= 0; i<numclients; ++i) {
message = "LYXSRV:" + clients[i] + ":bye\n";
pipes.send(message);
}
void LyXServer::callback(LyXServer * serv, string const & msg)
{
- lyxerr.debug("LyXServer: Received: '" + msg + '\'', Error::LYXSERVER);
+ lyxerr[Debug::LYXSERVER] << "LyXServer: Received: '"
+ << msg << '\'' << endl;
- char const *p = msg.c_str();
+ char const * p = msg.c_str();
// --- parse the string --------------------------------------------
//
bool server_only = false;
while(*p) {
// --- 1. check 'header' ---
- if (strncmp(p, "LYXSRV:", 7)==0) {
+
+ if (compare(p, "LYXSRV:", 7) == 0) {
server_only = true;
- } else if(0!=strncmp(p, "LYXCMD:", 7)) {
- lyxerr.print("LyXServer: Unknown request");
+ } else if (0 != compare(p, "LYXCMD:", 7)) {
+ lyxerr << "LyXServer: Unknown request" << endl;
return;
}
p += 7;
string client;
while(*p && *p != ':')
client += char(*p++);
- if(*p == ':') p++;
- if(!*p) return;
+ if (*p == ':') ++p;
+ if (!*p) return;
// --- 3. get function name ---
string cmd;
// --- 4. parse the argument ---
string arg;
- if(!server_only && *p == ':' && *(++p)) {
+ if (!server_only && *p == ':' && *(++p)) {
while(*p && *p != '\n')
arg += char(*p++);
- if(*p) p++;
+ if (*p) ++p;
}
- lyxerr.debug("LyXServer: Client: '" + client + "' Command: '" + cmd + "' Argument: '" + arg + '\'', Error::LYXSERVER);
+ lyxerr[Debug::LYXSERVER]
+ << "LyXServer: Client: '" << client
+ << "' Command: '" << cmd
+ << "' Argument: '" << arg << '\'' << endl;
// --- lookup and exec the command ------------------
// we are listening.
if (cmd == "hello") {
// One more client
- if(serv->numclients==MAX_CLIENTS){ //paranoid check
- lyxerr.debug("LyXServer: too many clients...", Error::LYXSERVER);
+ if (serv->numclients == MAX_CLIENTS){ //paranoid check
+ lyxerr[Debug::LYXSERVER]
+ << "LyXServer: too many clients..."
+ << endl;
return;
}
- int i=0; //find place in clients[]
+ int i= 0; //find place in clients[]
while (!serv->clients[i].empty()
&& i<serv->numclients)
- i++;
+ ++i;
serv->clients[i] = client;
serv->numclients++;
buf = "LYXSRV:" + client + ":hello\n";
- lyxerr.debug("LyXServer: Greeting " + client, Error::LYXSERVER);
+ lyxerr[Debug::LYXSERVER]
+ << "LyXServer: Greeting "
+ << client << endl;
serv->pipes.send(buf);
} else if (cmd == "bye") {
- // If clients==0 maybe we should reset the pipes
+ // If clients == 0 maybe we should reset the pipes
// to prevent fake callbacks
- int i; //look if client is registered
- for (i=0; i<serv->numclients; i++) {
+ int i = 0; //look if client is registered
+ for (; i < serv->numclients; ++i) {
if (serv->clients[i] == client) break;
}
- if (i<serv->numclients) {
+ if (i < serv->numclients) {
serv->numclients--;
serv->clients[i].erase();
- lyxerr.debug("LyXServer: Client " + client + " said goodbye",
- Error::LYXSERVER);
+ lyxerr[Debug::LYXSERVER]
+ << "LyXServer: Client "
+ << client << " said goodbye"
+ << endl;
} else {
- lyxerr.debug("LyXServer: ignoring bye messge from unregistered client" +
- client + "\n", Error::LYXSERVER);
+ lyxerr[Debug::LYXSERVER]
+ << "LyXServer: ignoring bye messge from unregistered client"
+ << client << endl;
}
} else {
- lyxerr.print("LyXServer: Undefined server command " + cmd + ".");
+ lyxerr <<"LyXServer: Undefined server command "
+ << cmd << "." << endl;
}
return;
}
// connect to the lyxfunc in the single LyXView we
// support currently. (Lgb)
- int action = lyxaction.LookupFunc(cmd.c_str());
+ int action = lyxaction.LookupFunc(cmd);
//int action = -1;
string rval, buf;
- if (action>=0) {
- rval = serv->func->Dispatch(action, arg.c_str());
+ if (action>= 0) {
+ rval = serv->func->Dispatch(action, arg);
} else {
rval = "Unknown command";
}
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