Re: cron limit
The script thats being ran by cron does a 'ps x |grep test.pl'. and prases the output from test.pl, but since cron is limiting the char length, its not parsing the output right. ps -xw ? -- Pieter ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Global / Cluster / Shared filesystem for FreeBSD?
Sean Kelly wrote: Hope this helps. I'd like to see FreeBSD get much better AFS and general clustering/internetworking support. For example, easier to configure LDAP and Kerberos. Must.. compete.. with.. Active.. Directory... This is something else I've been wanting to look at as well. In general I'd like to see many more file-systems supported in FreeBSD. Not as root devices, necessarily, but general kernel module support for them. I know someone was working on Reiser support, and I think that's great. -- Ryan Sommers [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Idea about 'skeleton jail
On Sunday 13 March 2005 14:24, Anish Mistry wrote: On Sunday 13 March 2005 01:23 pm, Chris Hodgins wrote: Samuel J. Greear wrote: Not a bad 'idea' at all, although I won't comment on semantics. I had something implemented using fs stacking (in a very hackish way, and I believe it's lost now, so don't ask to see it...) to implement per-jail quota's that seemed to work quite well. Sam Feel free to comment on the semantics. As I said before, I am not very knowledgable about filesystems and any insight or alternative implementation you can provide would be interesting I'm sure to everyone. Yeah, if there was jailfs that was setup automatically for the jails that supported quotas out of the box that would kill my major gripe about setting up jails. Chris, your concept looks reasonable to me. I think I would probably do something along those lines but borrow some idea's from my 'jail-build' script. It has the concept of both includes and excludes, but it also handles another directory for what I call overrides. My overrides directories are per-jail and typically include nothing more than config. files, but it works pretty handily. The overrides may best be implemented in a seperate layer... and I don't even know that I would call something like this a jailfs, more like a globfs or something... I can see potential uses beyond jails. The reasons that I never finished implementing my jailfs with quota support were primarily, that stackable filesystems seem to be somewhat of a black-art. Secondarily, I concluded that the time would be better spent implementing filesystem agnostic quota's in the vfs layer. A proper design should enable you to do a lot of fun things, I was thinking something along the lines of just a simple aggregator that a module could hand function pointers to and register interest in events, with options like.. just-notify-me and dont-continue-without-my-approval. Throw in some helpers for synchronizing module state to disk. The kernel side of this shouldn't really be very hard, but all of the userland quota utilities would need to be rewritten as they are tied to UFS at the block level. This all from about 3 years ago, and I haven't implemented any of it. I rock! Sam ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Idea about 'skeleton jail
On Monday 14 March 2005 10:15 am, Samuel J. Greear wrote: On Sunday 13 March 2005 14:24, Anish Mistry wrote: On Sunday 13 March 2005 01:23 pm, Chris Hodgins wrote: Samuel J. Greear wrote: Not a bad 'idea' at all, although I won't comment on semantics. I had something implemented using fs stacking (in a very hackish way, and I believe it's lost now, so don't ask to see it...) to implement per-jail quota's that seemed to work quite well. Sam Feel free to comment on the semantics. As I said before, I am not very knowledgable about filesystems and any insight or alternative implementation you can provide would be interesting I'm sure to everyone. Yeah, if there was jailfs that was setup automatically for the jails that supported quotas out of the box that would kill my major gripe about setting up jails. Chris, your concept looks reasonable to me. I think I would probably do something along those lines but borrow some idea's from my 'jail-build' script. It has the concept of both includes and excludes, but it also handles another directory for what I call overrides. My overrides directories are per-jail and typically include nothing more than config. files, but it works pretty handily. The overrides may best be implemented in a seperate layer... and I don't even know that I would call something like this a jailfs, more like a globfs or something... I can see potential uses beyond jails. The reasons that I never finished implementing my jailfs with quota support were primarily, that stackable filesystems seem to be somewhat of a black-art. Secondarily, I concluded that the time would be better spent implementing filesystem agnostic quota's in the vfs layer. A proper design should enable you to do a lot of fun things, I was thinking something along the lines of just a simple aggregator that a module could hand function pointers to and register interest in events, with options like.. just-notify-me and dont-continue-without-my-approval. Throw in some helpers for synchronizing module state to disk. The kernel side of this shouldn't really be very hard, but all of the userland quota utilities would need to be rewritten as they are tied to UFS at the block level. This all from about 3 years ago, and I haven't implemented any of it. I rock! Sam Would you be able to write up some design specs for getting all this done? This might be a prime example of something to try to get funding for development. -- Anish Mistry pgpyd3VJETqb2.pgp Description: PGP signature
Re: Idea about 'skeleton jail
Anish Mistry wrote: On Monday 14 March 2005 10:15 am, Samuel J. Greear wrote: On Sunday 13 March 2005 14:24, Anish Mistry wrote: On Sunday 13 March 2005 01:23 pm, Chris Hodgins wrote: Samuel J. Greear wrote: Not a bad 'idea' at all, although I won't comment on semantics. I had something implemented using fs stacking (in a very hackish way, and I believe it's lost now, so don't ask to see it...) to implement per-jail quota's that seemed to work quite well. Sam Feel free to comment on the semantics. As I said before, I am not very knowledgable about filesystems and any insight or alternative implementation you can provide would be interesting I'm sure to everyone. Yeah, if there was jailfs that was setup automatically for the jails that supported quotas out of the box that would kill my major gripe about setting up jails. Chris, your concept looks reasonable to me. I think I would probably do something along those lines but borrow some idea's from my 'jail-build' script. It has the concept of both includes and excludes, but it also handles another directory for what I call overrides. My overrides directories are per-jail and typically include nothing more than config. files, but it works pretty handily. The overrides may best be implemented in a seperate layer... and I don't even know that I would call something like this a jailfs, more like a globfs or something... I can see potential uses beyond jails. I like the idea of the overrides directory. That would work nicely. If you made the overrides directory the actual jail root that might make sense. Then when the [jail|glob]fs is mounted it will simply choose the file in the jail root directory instead of the one on the normal file system. If we implemented a sort of copy of write architecture we could add to the exceptions list on the fly. That is everything from the host (everything allowed by the config file that is) is available as a copy of the host system. When you edit a file, the filesystem simply creates its own copy for the overrides directory and we edit that. That would be very neat. Imagine that working on the ports system!! :) What do you think? The reasons that I never finished implementing my jailfs with quota support were primarily, that stackable filesystems seem to be somewhat of a black-art. Secondarily, I concluded that the time would be better spent implementing filesystem agnostic quota's in the vfs layer. A proper design should enable you to do a lot of fun things, I was thinking something along the lines of just a simple aggregator that a module could hand function pointers to and register interest in events, with options like.. just-notify-me and dont-continue-without-my-approval. Throw in some helpers for synchronizing module state to disk. The kernel side of this shouldn't really be very hard, but all of the userland quota utilities would need to be rewritten as they are tied to UFS at the block level. This all from about 3 years ago, and I haven't implemented any of it. I rock! Sounds, very interesting. Sam Would you be able to write up some design specs for getting all this done? This might be a prime example of something to try to get funding for development. I would be willing to donate some time to work on designing and building this. Especially if working with someone who knows a lot more about filesystems than me. :) Chris ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Idea about 'skeleton jail
Anish Mistry wrote: On Monday 14 March 2005 10:15 am, Samuel J. Greear wrote: On Sunday 13 March 2005 14:24, Anish Mistry wrote: On Sunday 13 March 2005 01:23 pm, Chris Hodgins wrote: Samuel J. Greear wrote: Not a bad 'idea' at all, although I won't comment on semantics. I had something implemented using fs stacking (in a very hackish way, and I believe it's lost now, so don't ask to see it...) to implement per-jail quota's that seemed to work quite well. Sam Feel free to comment on the semantics. As I said before, I am not very knowledgable about filesystems and any insight or alternative implementation you can provide would be interesting I'm sure to everyone. Yeah, if there was jailfs that was setup automatically for the jails that supported quotas out of the box that would kill my major gripe about setting up jails. Chris, your concept looks reasonable to me. I think I would probably do something along those lines but borrow some idea's from my 'jail-build' script. It has the concept of both includes and excludes, but it also handles another directory for what I call overrides. My overrides directories are per-jail and typically include nothing more than config. files, but it works pretty handily. The overrides may best be implemented in a seperate layer... and I don't even know that I would call something like this a jailfs, more like a globfs or something... I can see potential uses beyond jails. The reasons that I never finished implementing my jailfs with quota support were primarily, that stackable filesystems seem to be somewhat of a black-art. Secondarily, I concluded that the time would be better spent implementing filesystem agnostic quota's in the vfs layer. A proper design should enable you to do a lot of fun things, I was thinking something along the lines of just a simple aggregator that a module could hand function pointers to and register interest in events, with options like.. just-notify-me and dont-continue-without-my-approval. Throw in some helpers for synchronizing module state to disk. The kernel side of this shouldn't really be very hard, but all of the userland quota utilities would need to be rewritten as they are tied to UFS at the block level. This all from about 3 years ago, and I haven't implemented any of it. I rock! Sam Would you be able to write up some design specs for getting all this done? This might be a prime example of something to try to get funding for development. I seem to have stopped receiving mail from the mailing lists. Would it be possible for someone to forward any replies on this thread for the last few hours to [EMAIL PROTECTED] If it would be possible for any further emails to be cc'd there as well that would be brilliant. :) Thanks Chris ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
memory leak in inflate.c
Hi, I am trying to debug a memory leak in executing gzipped binaries when the parameter list is too long. The function in question is inflate_dynamic(). /* decompress until an end-of-block code */ if (inflate_codes(glbl, tl, td, bl, bd)) return 1; /* free the decoding tables, return */ huft_free(glbl, tl); huft_free(glbl, td); return 0; Should this be re-written as: i = inflate_codes(glbl, tl, td, bl, bd) ? 1 : 0; /* free the decoding tables, return */ huft_free(glbl, tl); huft_free(glbl, td); return (i); so that the Huffman tables are always freed. Comments appreciated. br vijay ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Freebsd 5.3 problem
HI all, I am running FreeBSd 5.3-REL Today my system simply locked up. There was no error sent to console, to any logs, nor the monitor screen. It was totally unresponsive to network, serial console, or keyboard. After 4 power-cycles, we were unable to get past the BIOS as it was reporting RAM R/W error. I have a screen shot of this from the serial port console, but it is the same as the one from before. If I hit the F1 key to continue, FreeBSD seemingly reports ACPI-0277: *** Warning: Invalid checksum in table [APIC] (98, sum 84 is not zero) just before booting. It is after the boot screen, but before the copyright is displayed by the kernel. Finally, I turned the machine off for about 2 minutes, then turned it back on. It was able to get through the BIOS RAM test and reboot cleanly, and the file systems cleaned themselves up and the database did so as well, and it appears to be running fine. Any ideas what is going on. Thanks A ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Freebsd 5.3 problem
On Mon, Mar 14, 2005 at 12:23:59PM -0800, Amandeep Pannu wrote: HI all, I am running FreeBSd 5.3-REL Today my system simply locked up. There was no error sent to console, to any logs, nor the monitor screen. It was totally unresponsive to network, serial console, or keyboard. After 4 power-cycles, we were unable to get past the BIOS as it was reporting RAM R/W error. I have a screen shot of this from the serial port console, but it is the same as the one from before. If I hit the F1 Looks like hardware failure. Kris -- In God we Trust -- all others must submit an X.509 certificate. -- Charles Forsythe [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Freebsd 5.3 problem
Hi Kris, I had this problem before and I changed the MB and the memory and today it did the same thing it did before. memtest doesnt give any errors. Thanks A On Mon, Mar 14, 2005 at 12:23:59PM -0800, Amandeep Pannu wrote: HI all, I am running FreeBSd 5.3-REL Today my system simply locked up. There was no error sent to console, to any logs, nor the monitor screen. It was totally unresponsive to network, serial console, or keyboard. After 4 power-cycles, we were unable to get past the BIOS as it was reporting RAM R/W error. I have a screen shot of this from the serial port console, but it is the same as the one from before. If I hit the F1 Looks like hardware failure. Kris -- In God we Trust -- all others must submit an X.509 certificate. -- Charles Forsythe [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED] -- Amandeep.S [EMAIL PROTECTED] http://aman.chamkila.org ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Freebsd 5.3 problem
On Mon, Mar 14, 2005 at 12:34:59PM -0800, Amandeep Pannu wrote: Hi Kris, I had this problem before and I changed the MB and the memory and today it did the same thing it did before. Continue to check power supply, CPU cooling, cabling, etc. memtest doesnt give any errors. OK, that doesn't prove they don't exist though. Kris ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: memory leak in inflate.c
On Mon, 14 Mar 2005 [EMAIL PROTECTED] wrote: Hi, I am trying to debug a memory leak in executing gzipped binaries when the parameter list is too long. The function in question is inflate_dynamic(). /* decompress until an end-of-block code */ if (inflate_codes(glbl, tl, td, bl, bd)) return 1; /* free the decoding tables, return */ huft_free(glbl, tl); huft_free(glbl, td); return 0; Should this be re-written as: i = inflate_codes(glbl, tl, td, bl, bd) ? 1 : 0; /* free the decoding tables, return */ huft_free(glbl, tl); huft_free(glbl, td); return (i); so that the Huffman tables are always freed. _If_ I remember correctly, if inflate_dynamic() returns a non-zero code it means that the decompression failed and the program itself quits right away, no memory leak. Or am I missing something? marco -- Very graphic, classical but efficient. ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Idea about 'skeleton jail
Not sure if this has already made it to the mailing list or not. My uni email account has started blocking email inbound and outbound to the freebsd servers. If I have missed anything since the post I am replying to I would appreciate if it could be forwarded on to me at this address...thanks :) A few more comments below. :) Anish Mistry wrote: On Monday 14 March 2005 10:15 am, Samuel J. Greear wrote: On Sunday 13 March 2005 14:24, Anish Mistry wrote: On Sunday 13 March 2005 01:23 pm, Chris Hodgins wrote: Samuel J. Greear wrote: Not a bad 'idea' at all, although I won't comment on semantics. I had something implemented using fs stacking (in a very hackish way, and I believe it's lost now, so don't ask to see it...) to implement per-jail quota's that seemed to work quite well. Sam Feel free to comment on the semantics. As I said before, I am not very knowledgable about filesystems and any insight or alternative implementation you can provide would be interesting I'm sure to everyone. Yeah, if there was jailfs that was setup automatically for the jails that supported quotas out of the box that would kill my major gripe about setting up jails. Chris, your concept looks reasonable to me. I think I would probably do something along those lines but borrow some idea's from my 'jail-build' script. It has the concept of both includes and excludes, but it also handles another directory for what I call overrides. My overrides directories are per-jail and typically include nothing more than config. files, but it works pretty handily. The overrides may best be implemented in a seperate layer... and I don't even know that I would call something like this a jailfs, more like a globfs or something... I can see potential uses beyond jails. I like the idea of the overrides directory. That would work nicely. If you made the overrides directory the actual jail root that might make sense. Then when the [jail|glob]fs is mounted it will simply choose the file in the jail root directory instead of the one on the normal file system. If we implemented a sort of copy of write architecture we could add to the exceptions list on the fly. That is everything from the host (everything allowed by the config file that is) is available as a copy of the host system. When you edit a file, the filesystem simply creates its own copy for the overrides directory and we edit that. That would be very neat. Imagine that working on the ports system!! :) What do you think? The reasons that I never finished implementing my jailfs with quota support were primarily, that stackable filesystems seem to be somewhat of a black-art. Secondarily, I concluded that the time would be better spent implementing filesystem agnostic quota's in the vfs layer. A proper design should enable you to do a lot of fun things, I was thinking something along the lines of just a simple aggregator that a module could hand function pointers to and register interest in events, with options like.. just-notify-me and dont-continue-without-my-approval. Throw in some helpers for synchronizing module state to disk. The kernel side of this shouldn't really be very hard, but all of the userland quota utilities would need to be rewritten as they are tied to UFS at the block level. This all from about 3 years ago, and I haven't implemented any of it. I rock! Sounds, very interesting. Sam Would you be able to write up some design specs for getting all this done? This might be a prime example of something to try to get funding for development. I would be willing to donate some time to work on designing and building this. Especially if working with someone who knows a lot more about filesystems than me. :) Chris ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Freebsd 5.3 problem
On 03/14/05 15:34:59, Amandeep Pannu wrote: Hi Kris, I had this problem before and I changed the MB and the memory and today it did the same thing it did before. memtest doesnt give any errors. Thanks A Memtest86 right? There is another that you run in an os like any other program. Did you leave memtest86 running over night or the weekend? How are your temps under load? Do you use a ups? On Mon, Mar 14, 2005 at 12:23:59PM -0800, Amandeep Pannu wrote: HI all, I am running FreeBSd 5.3-REL Today my system simply locked up. There was no error sent to console, to any logs, nor the monitor screen. It was totally unresponsive to network, serial console, or keyboard. After 4 power-cycles, we were unable to get past the BIOS as it was reporting RAM R/W error. I have a screen shot of this from the serial port console, but it is the same as the one from before. If I hit the F1 Looks like hardware failure. Kris -- In God we Trust -- all others must submit an X.509 certificate. -- Charles Forsythe [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers- [EMAIL PROTECTED] -- Amandeep.S [EMAIL PROTECTED] http://aman.chamkila.org ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers- [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
cvsup can't work
hi all, I installed FreeBSD5.3REL on my PC, and I want to update the source tree and ports collection using cvsup. To do that I copy the stable-supfile to /etc directory and set its default host tag to the nearest mirror, and also set only the ports that I want to update to save bandwith. Everything is work fine except when I run the command # cvsup /etc/stable-supfile the response from the mirror server is like this : [EMAIL PROTECTED] root]# cvsup /etc/stable-supfile Cannot connect to cvsup.id.FreeBSD.org: Connection refused Will retry at 09:31:28 I use netstat to look what happen inside those error message, and I found this one : [EMAIL PROTECTED] cakra]$ netstat Active Internet connections Proto Recv-Q Send-Q Local Address Foreign Address(state) tcp4 0 0 192.100.40.14.53875mirror.cbn.net.i.cvsup SYN_SENT The PC never ESTABLISHED the connection to the server it's only do the SYN_SENT. Why it happen? Is cvsup using certain ports so I can make some proper change on my firewall? ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: cvsup can't work
On Monday 14 March 2005 06:33 pm, wanakahalugi wrote: hi all, I installed FreeBSD5.3REL on my PC, and I want to update the source tree and ports collection using cvsup. To do that I copy the stable-supfile to /etc directory and set its default host tag to the nearest mirror, and also set only the ports that I want to update to save bandwith. Everything is work fine except when I run the command # cvsup /etc/stable-supfile the response from the mirror server is like this : [EMAIL PROTECTED] root]# cvsup /etc/stable-supfile Cannot connect to cvsup.id.FreeBSD.org: Connection refused Will retry at 09:31:28 I use netstat to look what happen inside those error message, and I found this one : [EMAIL PROTECTED] cakra]$ netstat Active Internet connections Proto Recv-Q Send-Q Local Address Foreign Address (state) tcp4 0 0 192.100.40.14.53875 mirror.cbn.net.i.cvsup SYN_SENT The PC never ESTABLISHED the connection to the server it's only do the SYN_SENT. Why it happen? Is cvsup using certain ports so I can make some proper change on my firewall? ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED] It uses port 5999 see /etc/services -Mike ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
poll or select for ppi?
Is it possible to use poll or select to detect a change in the status
bits of the parallel port? I tried something like this, and took bits
5 and 6 of the status register low and nothing seemed to happen. Is
what I am trying to do even possible, or I am supposed to take a
certain bit low to cause a read event? Any help is appreciated.
int ppi_fd;
char port[] = /dev/ppi0;
ppi_fd = open(port, O_RDWR);
fd_set rfds;
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 10;
while(1) {
FD_ZERO( rfds );
FD_SET( ppi_fd, rfds );
if ( select(1, rfds, NULL, NULL, tv) ) {
printf(hi\n);
}
}
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Re: poll or select for ppi?
On Tue, 15 Mar 2005 13:35, Matt Kory wrote: Is it possible to use poll or select to detect a change in the status bits of the parallel port? I tried something like this, and took bits 5 and 6 of the status register low and nothing seemed to happen. Is what I am trying to do even possible, or I am supposed to take a certain bit low to cause a read event? Any help is appreciated. PPI doesn't support select/poll. I don't think ere is any support for interrupt based notifications.. The only thing interrupts appear to be used for is for IEE1284 state changes. ie you're stuck with polling :( -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au The nice thing about standards is that there are so many of them to choose from. -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C pgpd8dWRD2quR.pgp Description: PGP signature
Re: poll or select for ppi?
On Mon, Mar 14, 2005 at 10:05:34PM -0500, Matt Kory wrote: Is it possible to use poll or select to detect a change in the status bits of the parallel port? I tried something like this, and took bits 5 and 6 of the status register low and nothing seemed to happen. Is what I am trying to do even possible, or I am supposed to take a certain bit low to cause a read event? Any help is appreciated. Disclaimer: I'm no expert on the parallel port. The man page for ppi(4) says that all I/O is via ioctl(), which isn't covered by the select() mechanism. You'd either have to poll PPIGSTATUS from userland on a timer, or perhaps hack the driver to use a kevent. Considering there's probably no way to get a hardware interrupt for the status change directly via ppi(4), you might need to consider writing a set of custom ppbus microsequences and a driver for your application. Regards, BMS ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
threads question
Hi, I've just reached a point in a program I'm writing where I'd like to do threading. When I try to start a thread like this: pthread_create(thread, attr, MGPMrUpgrade, property ); where property is a structure of many variables it doesn't get passed to the function. If I do this: pthread_create(thread, attr, MGPMrUpgrade( property ), NULL ); It works, but just seems wrong. Can anyone point me to a source file, preferably in /usr/src somewhere that passes a structure to a function being run as a thread so I may study the proper way to do this? Thank you. -Mike ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: threads question
On Mon, 14 Mar 2005, Michael C. Shultz wrote:
Hi, I've just reached a point in a program I'm writing where I'd like to
do threading.
When I try to start a thread like this:
pthread_create(thread, attr, MGPMrUpgrade, property );
property
You should compile with -Wall and get rid of any warnings.
where property is a structure of many variables it doesn't get passed
to the function. If I do this:
pthread_create(thread, attr, MGPMrUpgrade( property ), NULL );
That looks like it will actuall call MGPMrUpgrade() and use its
return value as the function pointer.
It works, but just seems wrong.
Can anyone point me to a source file, preferably in /usr/src somewhere
that passes a structure to a function being run as a thread so I may
study the proper way to do this?
src/lib/libpthread/test/sem_d.c
src/lib/libpthread/test/mutex_d.c
src/lib/libpthread/test/sigwait_d.c
I'd suggest getting Butenhof's Programming with POSIX Threads book.
--
DE
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Re: threads question
On Monday 14 March 2005 08:57 pm, Daniel Eischen wrote: On Mon, 14 Mar 2005, Michael C. Shultz wrote: Hi, I've just reached a point in a program I'm writing where I'd like to do threading. When I try to start a thread like this: pthread_create(thread, attr, MGPMrUpgrade, property ); property You should compile with -Wall and get rid of any warnings. where property is a structure of many variables it doesn't get passed to the function. If I do this: pthread_create(thread, attr, MGPMrUpgrade( property ), NULL ); That looks like it will actuall call MGPMrUpgrade() and use its return value as the function pointer. It works, but just seems wrong. Can anyone point me to a source file, preferably in /usr/src somewhere that passes a structure to a function being run as a thread so I may study the proper way to do this? src/lib/libpthread/test/sem_d.c src/lib/libpthread/test/mutex_d.c src/lib/libpthread/test/sigwait_d.c Great! I'd suggest getting Butenhof's Programming with POSIX Threads book. I did a google on Programming with POSIX Threads and this site popped up first. I remember this guy's stuff from way back when on signals I think, it was great for a beginner so maybe this one is worth looking at too. http://users.actcom.co.il/~choo/lupg/tutorials/multi-thread/multi-thread.html; I found the book at Amazon, thanks for the tip! Many thanks! -Mike ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
