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authorzecke <zecke>2002-10-15 00:33:13 (UTC)
committer zecke <zecke>2002-10-15 00:33:13 (UTC)
commitb12b38a00c66ddc100f3fff75478539b8b797928 (patch) (side-by-side diff)
treea28bafdaf00c2d89e1ef9680e6a31ff66bcc8bde
parent06330eede01fa5082ec382045b63454b2262bba6 (diff)
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Temp disable the Error notifier this fixes the probs with exiting taking 90%+ of CPU time
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--noncore/apps/opie-console/MyPty.cpp22
-rw-r--r--noncore/apps/opie-console/procctl.cpp2
2 files changed, 18 insertions, 6 deletions
diff --git a/noncore/apps/opie-console/MyPty.cpp b/noncore/apps/opie-console/MyPty.cpp
index 10828b0..cacb4ce 100644
--- a/noncore/apps/opie-console/MyPty.cpp
+++ b/noncore/apps/opie-console/MyPty.cpp
@@ -37,263 +37,275 @@
One can create many instances of this class within a program.
As a side effect of using this class, a signal(2) handler is
installed on SIGCHLD.
\par FIXME
[NOTE: much of the technical stuff below will be replaced by forkpty.]
publish the SIGCHLD signal if not related to an instance.
clearify TEPty::done vs. TEPty::~TEPty semantics.
check if pty is restartable via run after done.
\par Pseudo terminals
Pseudo terminals are a unique feature of UNIX, and always come in form of
pairs of devices (/dev/ptyXX and /dev/ttyXX), which are connected to each
other by the operating system. One may think of them as two serial devices
linked by a null-modem cable. Being based on devices the number of
simultanous instances of this class is (globally) limited by the number of
those device pairs, which is 256.
Another technic are UNIX 98 PTY's. These are supported also, and prefered
over the (obsolete) predecessor.
There's a sinister ioctl(2), signal(2) and job control stuff
nessesary to make everything work as it should.
*/
#include <qapplication.h>
#include <qsocketnotifier.h>
#include <qstring.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <fcntl.h>
#include <unistd.h>
#include <termios.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/wait.h>
#ifdef HAVE_OPENPTY
#include <pty.h>
#endif
+#include "procctl.h"
#include "MyPty.h"
#undef VERBOSE_DEBUG
/* -------------------------------------------------------------------------- */
/*!
Informs the client program about the
actual size of the window.
*/
void MyPty::setSize(int lines, int columns)
{
struct winsize wsize;
wsize.ws_row = (unsigned short)lines;
wsize.ws_col = (unsigned short)columns;
if(m_fd < 0) return;
ioctl(m_fd,TIOCSWINSZ,(char *)&wsize);
}
void MyPty::donePty()
{
// This is code from the Qt DumbTerminal example
int status = 0;
::close(m_fd);
if (m_cpid) {
+ qWarning("killing!!!");
kill(m_cpid, SIGHUP);
waitpid(m_cpid, &status, 0);
}
- emit done(status);
+ m_cpid = 0;
+// emit done(status);
}
const char* MyPty::deviceName()
{
return m_ttynam;
}
void MyPty::error()
{
+ qWarning("error");
// This is code from the Qt DumbTerminal example
donePty();
}
void MyPty::start() {
char* cmd = "/bin/sh";
QStrList lis;
int r =run(cmd, lis, 0, 0);
r = r;
}
/*!
start the client program.
*/
int MyPty::run(const char* cmd, QStrList &, const char*, int)
{
// This is code from the Qt DumbTerminal example
m_cpid = fork();
if ( !m_cpid ) {
// child - exec shell on tty
for (int sig = 1; sig < NSIG; sig++) signal(sig,SIG_DFL);
int ttyfd = ::open(m_ttynam, O_RDWR);
dup2(ttyfd, STDIN_FILENO);
dup2(ttyfd, STDOUT_FILENO);
dup2(ttyfd, STDERR_FILENO);
// should be done with tty, so close it
::close(ttyfd);
static struct termios ttmode;
if ( setsid() < 0 )
perror( "failed to set process group" );
#if defined (TIOCSCTTY)
// grabbed from APUE by Stevens
ioctl(STDIN_FILENO, TIOCSCTTY, 0);
#endif
tcgetattr( STDIN_FILENO, &ttmode );
ttmode.c_cc[VINTR] = 3;
ttmode.c_cc[VERASE] = 8;
tcsetattr( STDIN_FILENO, TCSANOW, &ttmode );
setenv("TERM","vt100",1);
setenv("COLORTERM","0",1);
if (getuid() == 0) {
char msg[] = "WARNING: You are running this shell as root!\n";
write(ttyfd, msg, sizeof(msg));
}
execl(cmd, cmd, 0);
donePty();
exit(-1);
}
// parent - continue as a widget
QSocketNotifier* sn_r = new QSocketNotifier(m_fd,QSocketNotifier::Read,this);
- QSocketNotifier* sn_e = new QSocketNotifier(m_fd,QSocketNotifier::Exception,this);
+// QSocketNotifier* sn_e = new QSocketNotifier(m_fd,QSocketNotifier::Exception,this);
connect(sn_r,SIGNAL(activated(int)),this,SLOT(readPty()));
- connect(sn_e,SIGNAL(activated(int)),this,SLOT(error()));
+// connect(sn_e,SIGNAL(activated(int)),this,SLOT(error()));
return 0;
}
int MyPty::openPty()
{
// This is code from the Qt DumbTerminal example
int ptyfd = -1;
#ifdef HAVE_OPENPTY
int ttyfd;
if ( openpty(&ptyfd,&ttyfd,ttynam,0,0) )
ptyfd = -1;
else
close(ttyfd); // we open the ttynam ourselves.
#else
for (const char* c0 = "pqrstuvwxyzabcde"; ptyfd < 0 && *c0 != 0; c0++) {
for (const char* c1 = "0123456789abcdef"; ptyfd < 0 && *c1 != 0; c1++) {
sprintf(m_ptynam,"/dev/pty%c%c",*c0,*c1);
sprintf(m_ttynam,"/dev/tty%c%c",*c0,*c1);
if ((ptyfd = ::open(m_ptynam,O_RDWR)) >= 0) {
if (geteuid() != 0 && !access(m_ttynam,R_OK|W_OK) == 0) {
::close(ptyfd);
ptyfd = -1;
}
}
}
}
#endif
if ( ptyfd < 0 ) {
qApp->exit(1);
return -1;
}
return ptyfd;
}
/*!
Create an instance.
*/
MyPty::MyPty(const Profile&) : m_cpid(0)
{
m_fd = openPty();
+ ProcCtl* ctl = ProcCtl::self();
}
/*!
Destructor.
Note that the related client program is not killed
(yet) when a instance is deleted.
*/
MyPty::~MyPty()
{
donePty();
}
QString MyPty::identifier()const {
return QString::fromLatin1("term");
}
QString MyPty::name()const{
return identifier();
}
bool MyPty::open() {
start();
return true;
}
void MyPty::close() {
donePty();
}
void MyPty::reload( const Profile& ) {
}
/*! sends len bytes through the line */
void MyPty::send(const QByteArray& ar)
{
-
+ qWarning("sending!");
#ifdef VERBOSE_DEBUG
// verbose debug
printf("sending bytes:\n");
for (uint i = 0; i < ar.count(); i++)
printf("%c", ar[i]);
printf("\n");
#endif
::write(m_fd, ar.data(), ar.count());
}
/*! indicates that a block of data is received */
void MyPty::readPty()
{
+ qWarning("read");
QByteArray buf(4096);
int len = ::read( m_fd, buf.data(), 4096 );
- if (len == -1)
+ if (len == -1 || len == 0) {
+ qWarning("donePty!!! now!");
donePty();
+ qWarning("return %s", sender()->className() );
+ delete sender();
+ return;
+ }
if (len < 0)
return;
+
buf.resize(len);
emit received(buf);
#ifdef VERBOSE_DEBUG
// verbose debug
printf("read bytes:\n");
for (uint i = 0; i < buf.count(); i++)
printf("%c", buf[i]);
printf("\n");
#endif
}
diff --git a/noncore/apps/opie-console/procctl.cpp b/noncore/apps/opie-console/procctl.cpp
index b0b6846..d1cfaf6 100644
--- a/noncore/apps/opie-console/procctl.cpp
+++ b/noncore/apps/opie-console/procctl.cpp
@@ -26,72 +26,72 @@ void ProcCtl::add(pid_t pi, int fd ) {
con->status = 0;
con->prev = m_last;
m_last = con;
}
void ProcCtl::remove( pid_t pi ) {
/*
* We first check if the last item
* is equal to pi the we
*
*/
ProcContainer* con;
if (m_last->pid == pi ) {
con = m_last;
m_last = con->prev;
delete con;
return;
}
con = m_last;
ProcContainer* forw = 0l;
while (con ) {
/* remove it */
if ( pi == con->pid ) {
forw->prev = con->prev;
delete con;
return;
}
forw = con;
con = con->prev;
}
}
void ProcCtl::remove( ProcContainer con ) {
remove( con.pid );
}
int ProcCtl::status(pid_t pid )const{
ProcContainer *con = m_last;
while (con) {
if (con->pid == pid )
return con->status;
con = con->prev;
}
return -1;
}
void ProcCtl::signal_handler(int) {
- qWarning("signal handler");
+ qWarning("signal handler in ProcCtl");
int status;
signal( SIGCHLD, signal_handler );
pid_t pi = waitpid( -1, &status, WNOHANG );
/*
* find the container for pid
*
*/
if ( pi < 0 ) {
return;
}
ProcContainer* con = m_last;
while (con) {
if ( con->pid == pi ) {
con->status = status;
char result = 1;
/* give a 'signal' */
::write(con->fd, &result, 1 );
}
con = con->prev;
}
}