* Re: [Linux-ia64] problem in sigtimedwait
2002-06-19 11:13 [Linux-ia64] problem in sigtimedwait kumar
@ 2002-06-19 16:41 ` David Mosberger
2002-06-20 6:52 ` kumar
2002-06-23 17:15 ` Fw: " kumar
2 siblings, 0 replies; 4+ messages in thread
From: David Mosberger @ 2002-06-19 16:41 UTC (permalink / raw)
To: linux-ia64
>>>>> On Wed, 19 Jun 2002 16:31:30 +0530, "kumar" <kumareshind@gmx.net> said:
Kumar> All, Do IA64 Linux release have complete support for RT
Kumar> Signals. Or which version has full support for RT signals.
There have not been any recent changes in this area.
Kumar> The problem we faced is that the : sigtimedwait call does not
Kumar> return siginfo_t's si_fd value.
Do you have a minimal test program that reproduces the issue?
--david
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Linux-ia64] problem in sigtimedwait
2002-06-19 11:13 [Linux-ia64] problem in sigtimedwait kumar
2002-06-19 16:41 ` David Mosberger
@ 2002-06-20 6:52 ` kumar
2002-06-23 17:15 ` Fw: " kumar
2 siblings, 0 replies; 4+ messages in thread
From: kumar @ 2002-06-20 6:52 UTC (permalink / raw)
To: linux-ia64
[-- Attachment #1: Type: text/plain, Size: 1030 bytes --]
Hello david,
I have attached the test program as you asked for testing "sigtimedwait".
whether it returns proper "si_fd" value.
Please try with this.
I have tested by the following way:
1)Compiled and run the program
2)In the other terminal, i have run the command "telnet localhost 5001".
3)You can view the results in the terminal where the test program is
running.
Thanks in advance.
Kumar.
> >>>>> On Wed, 19 Jun 2002 16:31:30 +0530, "kumar" <kumareshind@gmx.net>
said:
>
> Kumar> All, Do IA64 Linux release have complete support for RT
> Kumar> Signals. Or which version has full support for RT signals.
>
> There have not been any recent changes in this area.
>
> Kumar> The problem we faced is that the : sigtimedwait call does not
> Kumar> return siginfo_t's si_fd value.
>
> Do you have a minimal test program that reproduces the issue?
>
> --david
>
> _______________________________________________
> Linux-IA64 mailing list
> Linux-IA64@linuxia64.org
> http://lists.linuxia64.org/lists/listinfo/linux-ia64
[-- Attachment #2: rtsignaltest.c --]
[-- Type: application/octet-stream, Size: 3439 bytes --]
#include <stdio.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
static sigset_t signalset;
static siginfo_t siginfo;
#define F_SETSIG 10
void setCloseOnExec(int fd) {
int flags;
int dummy = 0;
if ((flags = fcntl(fd, F_GETFL, dummy)) < 0) {
printf("FD %d: fcntl F_GETFL: %s\n", fd, strerror(errno));
return;
}
if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) < 0)
printf("FD %d: set close-on-exec failed: %s\n", fd, strerror(errno));
}
void enable_rt_signal(int fd) {
int flags;
int err = 0;
flags = fcntl(fd, F_GETFL, err);
if (flags < 0) {
printf("enable_realtime_signals: Error getting flags FD %d\n", fd);
return;
}
err = fcntl(fd, F_SETFL, flags | O_ASYNC | O_RDWR);
if (err < 0) {
printf("enable_realtime_signals: Error setting ASYNC FD %d\n", fd);
return;
}
err = fcntl(fd, F_SETSIG, SIGRTMIN+10);
if (err < 0) {
printf("enable_realtime_signals: Error setting signum FD %d\n", fd);
return;
}
err = fcntl(fd, F_SETOWN, getpid());
if (err < 0) {
printf("enable_realtime_signals: Error setting pid FD %d\n", fd);
return;
}
}
void
commSetNonBlocking(int fd)
{
int flags;
int dummy = 0;
if ((flags = fcntl(fd, F_GETFL, dummy)) < 0) {
printf("FD %d: fcntl F_GETFL: %s\n", fd, strerror(errno));
return;
}
if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
printf("commSetNonBlocking: FD %d: %s\n", fd, strerror(errno));
return;
}
}
int main() {
int listenfd;
int fd;
int ret_val;
struct sockaddr_in addr;
short port = 5001;
sigemptyset(&signalset);
sigaddset(&signalset, SIGRTMIN+10);
sigaddset(&signalset, SIGIO);
sigprocmask(SIG_BLOCK, &signalset, NULL);
fd = socket(AF_INET, SOCK_STREAM, 0);
if(fd <= 0) {
printf("Socket creation failed : %s\n",strerror(errno));
return 1;
}
/* Set signal, pid etc */
setCloseOnExec(fd);
commSetNonBlocking(fd);
enable_rt_signal(fd);
/* Bind to port 5001 */
memset(&addr, '\0', sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
// addr.sin_addr = in_addr;
ret_val = bind(fd, (struct sockaddr *)&addr, sizeof(addr));
if(ret_val < 0) {
printf("Bind failed : %s\n",strerror(errno));
return 1;
}
/* Listen */
ret_val = listen(fd, 5);
if(ret_val < 0) {
printf("Listen failed : %s\n",strerror(errno));
return 1;
}
printf("Listening FD is %d\n",fd);
/* we will be here ..always */
while(1) {
int signum;
struct timespec ts;
ts.tv_sec = 2;
ts.tv_nsec = (100 % 1000) * 1000;
signum = sigtimedwait(&signalset, &siginfo, &ts);
if(signum == -1 && errno == EINTR) {
printf("Timeout\n");
continue;
}
printf("Signum : %d : %s\n",signum,strerror(errno));
if(signum != SIGRTMIN+10) {
printf("Unknown signal \n");
}
if(signum == SIGRTMIN+10) {
/* Print siginfo values */
printf("Signum : %d\n",siginfo.si_signo);
printf("FD : %d\n",siginfo.si_fd);
printf("BAND : %d\n",siginfo.si_band);
printf("Code : %d\n",siginfo.si_code);
}
}
return 0;
}
^ permalink raw reply [flat|nested] 4+ messages in thread* Fw: [Linux-ia64] problem in sigtimedwait
2002-06-19 11:13 [Linux-ia64] problem in sigtimedwait kumar
2002-06-19 16:41 ` David Mosberger
2002-06-20 6:52 ` kumar
@ 2002-06-23 17:15 ` kumar
2 siblings, 0 replies; 4+ messages in thread
From: kumar @ 2002-06-23 17:15 UTC (permalink / raw)
To: linux-ia64
[-- Attachment #1: Type: text/plain, Size: 1131 bytes --]
If somebody else have some idea, please post it asap.
Hello david,
I have attached the test program as you asked for testing
"sigtimedwait".whether it returns proper "si_fd" value.
Please try with this.
I have tested by the following way:
1)Compiled and run the program
2)In the other terminal, i have run the command "telnet localhost 5001".
3)You can view the results in the terminal where the test program is
running.
Thanks in advance.
Kumar.
> > >>>>> On Wed, 19 Jun 2002 16:31:30 +0530, "kumar" <kumareshind@gmx.net>
> said:
> >
> > Kumar> All, Do IA64 Linux release have complete support for RT
> > Kumar> Signals. Or which version has full support for RT signals.
> >
> > There have not been any recent changes in this area.
> >
> > Kumar> The problem we faced is that the : sigtimedwait call does not
> > Kumar> return siginfo_t's si_fd value.
> >
> > Do you have a minimal test program that reproduces the issue?
> >
> > --david
> >
> > _______________________________________________
> > Linux-IA64 mailing list
> > Linux-IA64@linuxia64.org
> > http://lists.linuxia64.org/lists/listinfo/linux-ia64
>
[-- Attachment #2: rtsignaltest.c --]
[-- Type: application/octet-stream, Size: 3439 bytes --]
#include <stdio.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
static sigset_t signalset;
static siginfo_t siginfo;
#define F_SETSIG 10
void setCloseOnExec(int fd) {
int flags;
int dummy = 0;
if ((flags = fcntl(fd, F_GETFL, dummy)) < 0) {
printf("FD %d: fcntl F_GETFL: %s\n", fd, strerror(errno));
return;
}
if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) < 0)
printf("FD %d: set close-on-exec failed: %s\n", fd, strerror(errno));
}
void enable_rt_signal(int fd) {
int flags;
int err = 0;
flags = fcntl(fd, F_GETFL, err);
if (flags < 0) {
printf("enable_realtime_signals: Error getting flags FD %d\n", fd);
return;
}
err = fcntl(fd, F_SETFL, flags | O_ASYNC | O_RDWR);
if (err < 0) {
printf("enable_realtime_signals: Error setting ASYNC FD %d\n", fd);
return;
}
err = fcntl(fd, F_SETSIG, SIGRTMIN+10);
if (err < 0) {
printf("enable_realtime_signals: Error setting signum FD %d\n", fd);
return;
}
err = fcntl(fd, F_SETOWN, getpid());
if (err < 0) {
printf("enable_realtime_signals: Error setting pid FD %d\n", fd);
return;
}
}
void
commSetNonBlocking(int fd)
{
int flags;
int dummy = 0;
if ((flags = fcntl(fd, F_GETFL, dummy)) < 0) {
printf("FD %d: fcntl F_GETFL: %s\n", fd, strerror(errno));
return;
}
if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
printf("commSetNonBlocking: FD %d: %s\n", fd, strerror(errno));
return;
}
}
int main() {
int listenfd;
int fd;
int ret_val;
struct sockaddr_in addr;
short port = 5001;
sigemptyset(&signalset);
sigaddset(&signalset, SIGRTMIN+10);
sigaddset(&signalset, SIGIO);
sigprocmask(SIG_BLOCK, &signalset, NULL);
fd = socket(AF_INET, SOCK_STREAM, 0);
if(fd <= 0) {
printf("Socket creation failed : %s\n",strerror(errno));
return 1;
}
/* Set signal, pid etc */
setCloseOnExec(fd);
commSetNonBlocking(fd);
enable_rt_signal(fd);
/* Bind to port 5001 */
memset(&addr, '\0', sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
// addr.sin_addr = in_addr;
ret_val = bind(fd, (struct sockaddr *)&addr, sizeof(addr));
if(ret_val < 0) {
printf("Bind failed : %s\n",strerror(errno));
return 1;
}
/* Listen */
ret_val = listen(fd, 5);
if(ret_val < 0) {
printf("Listen failed : %s\n",strerror(errno));
return 1;
}
printf("Listening FD is %d\n",fd);
/* we will be here ..always */
while(1) {
int signum;
struct timespec ts;
ts.tv_sec = 2;
ts.tv_nsec = (100 % 1000) * 1000;
signum = sigtimedwait(&signalset, &siginfo, &ts);
if(signum == -1 && errno == EINTR) {
printf("Timeout\n");
continue;
}
printf("Signum : %d : %s\n",signum,strerror(errno));
if(signum != SIGRTMIN+10) {
printf("Unknown signal \n");
}
if(signum == SIGRTMIN+10) {
/* Print siginfo values */
printf("Signum : %d\n",siginfo.si_signo);
printf("FD : %d\n",siginfo.si_fd);
printf("BAND : %d\n",siginfo.si_band);
printf("Code : %d\n",siginfo.si_code);
}
}
return 0;
}
^ permalink raw reply [flat|nested] 4+ messages in thread