[PHP] Re: php sockets was Re: [PHP] socket_write eats data - solved
Probably your problems about i can send about seven messages per second may be relationed to OS's tcp connection stream buffering... try to flush every fd after write to it. I wrote a multi-threaded (pcntl_fork()) application in phpcli using many sockets and they worked well... array iterations are fast and easy too, as they have only one level... so I believe that this is really relationed to socket flushing stuffs...you can also use select() to determine when a fd is ready for write and implement a write spool... only a ideia, but probably will spent more time with the same results... well.. flush then may resolve it. Daniel Souza Raditha Dissanayake [EMAIL PROTECTED] escreveu na mensagem news:[EMAIL PROTECTED] Hi thomas, Thomas Weber wrote: IMAP? We were talking about IRC, Used imap as an example. the Internet Relay Chat. In detail, my problems doesn't even refer to IRC directly, as i am developing a server for a html-based webchat, but the server-structure and the messages are nearly the same. Yes my questions was how are you going to maintain the connection between two different connectsion. As far as i know sockets cannot be serialized in php4. Once you realize the basics of socket-multicasting, it is no problem to maintain hundreds of simultanous TCP-connects via arrays of sockets, also called descriptor-sets. PHP seems to directly use the underlying C- libraries, so everything you can imagine is possible. Thanx i am aware of it -- http://www.radinks.com/upload Drag and Drop File Uploader. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] socket_write eats data - solved
IMAP? We were talking about IRC, the Internet Relay Chat.
In detail, my problems doesn't even refer to IRC directly, as i am
developing a server for a html-based webchat, but the server-structure and
the messages are nearly the same.
Once you realize the basics of socket-multicasting, it is no problem to
maintain hundreds of simultanous TCP-connects via arrays of sockets, also
called descriptor-sets. PHP seems to directly use the underlying C-
libraries, so everything you can imagine is possible.
Anyway, the major drawback of PHP in this case is speed. Currently i can
send about seven messages per second (one send means socket-connect of a
input client, some simple processing of the message and sending it to all
connected listening clients) with a dozen listening clients, but only about
three messages per second with two hundred listening clients. As C-written
IRC-servers sometimes have thousands of connected clients, i can only
imagine that it is PHP which has some not so efficent array- or
resource-handling.
Thomas 'Neo' Weber
---
[EMAIL PROTECTED]
[EMAIL PROTECTED]
- Original Message -
From: Raditha Dissanayake [EMAIL PROTECTED]
Cc: PHP-List [EMAIL PROTECTED]
Sent: Sunday, September 14, 2003 7:26 AM
Subject: Re: [PHP] socket_write eats data - solved
Wouldn't this multiple connections be a problem for php? IMHO one of the
main draw backs of the PHP IMAP library is the fact that you have to
open and close and imap connection for each page. That issue is
multiplied ten fold in this scenario isn't it?
Thomas Weber wrote:
No, it's TCP and a very uncomplicated protocol, everything is sent in
clear
text. Major problem is the socket-multicasting to keep track of all
clients
simultanly.
- Original Message -
From: Raditha Dissanayake [EMAIL PROTECTED]
To: Thomas Weber [EMAIL PROTECTED]; PHP-List
[EMAIL PROTECTED]
Sent: Sunday, September 14, 2003 2:59 AM
Subject: Re: [PHP] socket_write eats data - solved
Is IRC UDP?
Thomas Weber wrote:
Hi,
i've checked a hundred things before posting this question, but i
forgot
the
most important thing, the buffer.
The 'eaten' writes were buffered by the network-kernel and sent as
bunch
of
data. If too much data for the buffer is sent, the write is broken up
and
completed in the next bunch-of-data.
My receive-script hasn't diplayed the raw output, but an unserialized
array,
fetched out of the received string.
Maybe this will will help someone in future.
Thomas 'Neo' Weber
---
[EMAIL PROTECTED]
[EMAIL PROTECTED]
- Original Message -
From: Thomas Weber [EMAIL PROTECTED]
To: PHP-List [EMAIL PROTECTED]
Sent: Saturday, September 13, 2003 9:15 PM
Subject: [PHP] socket_write eats data
Hi,
I am deveoping a chatserver in IRC-style in PHP. For communication it
uses
socket-multiplexing aka socket_select. So long so good, works
perfectly.
The problem is, than when i make several socket_write's to the same
client
without waiting about 0.1sec after each write, the written data gets
lost
somewhere. socket_write does NOT throw any error, the data seams just
sended, but the clients never receives it.
Small example of the used code:
-
var $clients // array of 'client'-objects, each object has it's own
socket-descriptor in the object-variable $socket
function write_to_clients ($text) {
for ($i = 0; $i count ($this-clients); $i++) {
socket_write ($this-clients[$i]-socket, $text);
}
// usleep (1); if this is uncommented, all write are received by
all
clients
}
for ($i = 0; $i 10; $i++) {
$this-write_to_clients (test .$i);
}
-
Okay, this doesn't check the client-sockets for readiness to write,
but
even
if I check (via socket_select), ALL clients are ready to write and
writes
get lost too. It can't be the network-connection, because the tests
run
with
standalone PHP-clients on the same machine.
Is there any possibility to make fast writes without waiting after
each
write? The wait limits the server to max. 10 writes per second, wich
isn't
really enaugh for a good chatserver.
Thanks for your help!
Thomas 'Neo' Weber
---
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[PHP] php sockets was Re: [PHP] socket_write eats data - solved
Hi thomas, Thomas Weber wrote: IMAP? We were talking about IRC, Used imap as an example. the Internet Relay Chat. In detail, my problems doesn't even refer to IRC directly, as i am developing a server for a html-based webchat, but the server-structure and the messages are nearly the same. Yes my questions was how are you going to maintain the connection between two different connectsion. As far as i know sockets cannot be serialized in php4. Once you realize the basics of socket-multicasting, it is no problem to maintain hundreds of simultanous TCP-connects via arrays of sockets, also called descriptor-sets. PHP seems to directly use the underlying C- libraries, so everything you can imagine is possible. Thanx i am aware of it -- http://www.radinks.com/upload Drag and Drop File Uploader. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] socket_write eats data
Hi,
I am deveoping a chatserver in IRC-style in PHP. For communication it uses
socket-multiplexing aka socket_select. So long so good, works perfectly.
The problem is, than when i make several socket_write's to the same client
without waiting about 0.1sec after each write, the written data gets lost
somewhere. socket_write does NOT throw any error, the data seams just
sended, but the clients never receives it.
Small example of the used code:
-
var $clients // array of 'client'-objects, each object has it's own
socket-descriptor in the object-variable $socket
function write_to_clients ($text) {
for ($i = 0; $i count ($this-clients); $i++) {
socket_write ($this-clients[$i]-socket, $text);
}
// usleep (1); if this is uncommented, all write are received by all
clients
}
for ($i = 0; $i 10; $i++) {
$this-write_to_clients (test .$i);
}
-
Okay, this doesn't check the client-sockets for readiness to write, but even
if I check (via socket_select), ALL clients are ready to write and writes
get lost too. It can't be the network-connection, because the tests run with
standalone PHP-clients on the same machine.
Is there any possibility to make fast writes without waiting after each
write? The wait limits the server to max. 10 writes per second, wich isn't
really enaugh for a good chatserver.
Thanks for your help!
Thomas 'Neo' Weber
---
[EMAIL PROTECTED]
[EMAIL PROTECTED]
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Re: [PHP] socket_write eats data - solved
Hi,
i've checked a hundred things before posting this question, but i forgot the
most important thing, the buffer.
The 'eaten' writes were buffered by the network-kernel and sent as bunch of
data. If too much data for the buffer is sent, the write is broken up and
completed in the next bunch-of-data.
My receive-script hasn't diplayed the raw output, but an unserialized array,
fetched out of the received string.
Maybe this will will help someone in future.
Thomas 'Neo' Weber
---
[EMAIL PROTECTED]
[EMAIL PROTECTED]
- Original Message -
From: Thomas Weber [EMAIL PROTECTED]
To: PHP-List [EMAIL PROTECTED]
Sent: Saturday, September 13, 2003 9:15 PM
Subject: [PHP] socket_write eats data
Hi,
I am deveoping a chatserver in IRC-style in PHP. For communication it uses
socket-multiplexing aka socket_select. So long so good, works perfectly.
The problem is, than when i make several socket_write's to the same client
without waiting about 0.1sec after each write, the written data gets lost
somewhere. socket_write does NOT throw any error, the data seams just
sended, but the clients never receives it.
Small example of the used code:
-
var $clients // array of 'client'-objects, each object has it's own
socket-descriptor in the object-variable $socket
function write_to_clients ($text) {
for ($i = 0; $i count ($this-clients); $i++) {
socket_write ($this-clients[$i]-socket, $text);
}
// usleep (1); if this is uncommented, all write are received by all
clients
}
for ($i = 0; $i 10; $i++) {
$this-write_to_clients (test .$i);
}
-
Okay, this doesn't check the client-sockets for readiness to write, but
even
if I check (via socket_select), ALL clients are ready to write and writes
get lost too. It can't be the network-connection, because the tests run
with
standalone PHP-clients on the same machine.
Is there any possibility to make fast writes without waiting after each
write? The wait limits the server to max. 10 writes per second, wich isn't
really enaugh for a good chatserver.
Thanks for your help!
Thomas 'Neo' Weber
---
[EMAIL PROTECTED]
[EMAIL PROTECTED]
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Re: [PHP] socket_write eats data - solved
Is IRC UDP?
Thomas Weber wrote:
Hi,
i've checked a hundred things before posting this question, but i forgot the
most important thing, the buffer.
The 'eaten' writes were buffered by the network-kernel and sent as bunch of
data. If too much data for the buffer is sent, the write is broken up and
completed in the next bunch-of-data.
My receive-script hasn't diplayed the raw output, but an unserialized array,
fetched out of the received string.
Maybe this will will help someone in future.
Thomas 'Neo' Weber
---
[EMAIL PROTECTED]
[EMAIL PROTECTED]
- Original Message -
From: Thomas Weber [EMAIL PROTECTED]
To: PHP-List [EMAIL PROTECTED]
Sent: Saturday, September 13, 2003 9:15 PM
Subject: [PHP] socket_write eats data
Hi,
I am deveoping a chatserver in IRC-style in PHP. For communication it uses
socket-multiplexing aka socket_select. So long so good, works perfectly.
The problem is, than when i make several socket_write's to the same client
without waiting about 0.1sec after each write, the written data gets lost
somewhere. socket_write does NOT throw any error, the data seams just
sended, but the clients never receives it.
Small example of the used code:
-
var $clients // array of 'client'-objects, each object has it's own
socket-descriptor in the object-variable $socket
function write_to_clients ($text) {
for ($i = 0; $i count ($this-clients); $i++) {
socket_write ($this-clients[$i]-socket, $text);
}
// usleep (1); if this is uncommented, all write are received by all
clients
}
for ($i = 0; $i 10; $i++) {
$this-write_to_clients (test .$i);
}
-
Okay, this doesn't check the client-sockets for readiness to write, but
even
if I check (via socket_select), ALL clients are ready to write and writes
get lost too. It can't be the network-connection, because the tests run
with
standalone PHP-clients on the same machine.
Is there any possibility to make fast writes without waiting after each
write? The wait limits the server to max. 10 writes per second, wich isn't
really enaugh for a good chatserver.
Thanks for your help!
Thomas 'Neo' Weber
---
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Re: [PHP] socket_write eats data - solved
No, it's TCP and a very uncomplicated protocol, everything is sent in clear
text. Major problem is the socket-multicasting to keep track of all clients
simultanly.
- Original Message -
From: Raditha Dissanayake [EMAIL PROTECTED]
To: Thomas Weber [EMAIL PROTECTED]; PHP-List
[EMAIL PROTECTED]
Sent: Sunday, September 14, 2003 2:59 AM
Subject: Re: [PHP] socket_write eats data - solved
Is IRC UDP?
Thomas Weber wrote:
Hi,
i've checked a hundred things before posting this question, but i forgot
the
most important thing, the buffer.
The 'eaten' writes were buffered by the network-kernel and sent as bunch
of
data. If too much data for the buffer is sent, the write is broken up and
completed in the next bunch-of-data.
My receive-script hasn't diplayed the raw output, but an unserialized
array,
fetched out of the received string.
Maybe this will will help someone in future.
Thomas 'Neo' Weber
---
[EMAIL PROTECTED]
[EMAIL PROTECTED]
- Original Message -
From: Thomas Weber [EMAIL PROTECTED]
To: PHP-List [EMAIL PROTECTED]
Sent: Saturday, September 13, 2003 9:15 PM
Subject: [PHP] socket_write eats data
Hi,
I am deveoping a chatserver in IRC-style in PHP. For communication it
uses
socket-multiplexing aka socket_select. So long so good, works perfectly.
The problem is, than when i make several socket_write's to the same
client
without waiting about 0.1sec after each write, the written data gets
lost
somewhere. socket_write does NOT throw any error, the data seams just
sended, but the clients never receives it.
Small example of the used code:
-
var $clients // array of 'client'-objects, each object has it's own
socket-descriptor in the object-variable $socket
function write_to_clients ($text) {
for ($i = 0; $i count ($this-clients); $i++) {
socket_write ($this-clients[$i]-socket, $text);
}
// usleep (1); if this is uncommented, all write are received by
all
clients
}
for ($i = 0; $i 10; $i++) {
$this-write_to_clients (test .$i);
}
-
Okay, this doesn't check the client-sockets for readiness to write, but
even
if I check (via socket_select), ALL clients are ready to write and
writes
get lost too. It can't be the network-connection, because the tests run
with
standalone PHP-clients on the same machine.
Is there any possibility to make fast writes without waiting after each
write? The wait limits the server to max. 10 writes per second, wich
isn't
really enaugh for a good chatserver.
Thanks for your help!
Thomas 'Neo' Weber
---
[EMAIL PROTECTED]
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Re: [PHP] socket_write eats data - solved
Wouldn't this multiple connections be a problem for php? IMHO one of the
main draw backs of the PHP IMAP library is the fact that you have to
open and close and imap connection for each page. That issue is
multiplied ten fold in this scenario isn't it?
Thomas Weber wrote:
No, it's TCP and a very uncomplicated protocol, everything is sent in clear
text. Major problem is the socket-multicasting to keep track of all clients
simultanly.
- Original Message -
From: Raditha Dissanayake [EMAIL PROTECTED]
To: Thomas Weber [EMAIL PROTECTED]; PHP-List
[EMAIL PROTECTED]
Sent: Sunday, September 14, 2003 2:59 AM
Subject: Re: [PHP] socket_write eats data - solved
Is IRC UDP?
Thomas Weber wrote:
Hi,
i've checked a hundred things before posting this question, but i forgot
the
most important thing, the buffer.
The 'eaten' writes were buffered by the network-kernel and sent as bunch
of
data. If too much data for the buffer is sent, the write is broken up and
completed in the next bunch-of-data.
My receive-script hasn't diplayed the raw output, but an unserialized
array,
fetched out of the received string.
Maybe this will will help someone in future.
Thomas 'Neo' Weber
---
[EMAIL PROTECTED]
[EMAIL PROTECTED]
- Original Message -
From: Thomas Weber [EMAIL PROTECTED]
To: PHP-List [EMAIL PROTECTED]
Sent: Saturday, September 13, 2003 9:15 PM
Subject: [PHP] socket_write eats data
Hi,
I am deveoping a chatserver in IRC-style in PHP. For communication it
uses
socket-multiplexing aka socket_select. So long so good, works perfectly.
The problem is, than when i make several socket_write's to the same
client
without waiting about 0.1sec after each write, the written data gets
lost
somewhere. socket_write does NOT throw any error, the data seams just
sended, but the clients never receives it.
Small example of the used code:
-
var $clients // array of 'client'-objects, each object has it's own
socket-descriptor in the object-variable $socket
function write_to_clients ($text) {
for ($i = 0; $i count ($this-clients); $i++) {
socket_write ($this-clients[$i]-socket, $text);
}
// usleep (1); if this is uncommented, all write are received by
all
clients
}
for ($i = 0; $i 10; $i++) {
$this-write_to_clients (test .$i);
}
-
Okay, this doesn't check the client-sockets for readiness to write, but
even
if I check (via socket_select), ALL clients are ready to write and
writes
get lost too. It can't be the network-connection, because the tests run
with
standalone PHP-clients on the same machine.
Is there any possibility to make fast writes without waiting after each
write? The wait limits the server to max. 10 writes per second, wich
isn't
really enaugh for a good chatserver.
Thanks for your help!
Thomas 'Neo' Weber
---
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