RE: tcp/ip sockets in apache module
I have a module that does this in Windows. I used code right off the MSDN site for a TCP/IP client. Did you remember to do wsastartup? -Original Message- From: Jeff Trawick [mailto:traw...@gmail.com] Sent: Friday, May 23, 2014 1:14 PM To: modules-dev@httpd.apache.org Subject: Re: tcp/ip sockets in apache module On Fri, May 23, 2014 at 1:58 PM, Jeremy Thompson jer...@warehousesports.com wrote: I'Ll give that a shot. I'Ve used source level debugging in IDE's but it looks like I'Ll be using GDB for this one. Thanks. Have a look at http://httpd.apache.org/dev/debugging.html On Windows, you can start httpd normally and attach to the httpd child process from the Visual Studio IDE in order to debug. On 5/23/14 10:41 , Jeff Trawick traw...@gmail.com wrote: On Fri, May 23, 2014 at 1:27 PM, Jeremy Thompson jer...@warehousesports.com wrote: I'm trying to write a module for apache. I've successfully compile in a test module that doesn't do a whole lot yet. I would like to be able to use tcp/ip sockets in the module to talk to another server. I added in some test code that should connect to my listening server and say hello whenever a request is made. I'm not getting any errors upon compiling the module with the sockets stuff added but its not actually doing anything. Basically its ignoring my connect and send code. Does anyone have a small working example of this or am I just way off base in using TCP/IP for external communication to a module. Thanks. ~Jeremy You need to know how to step through your code with a source level debugger so you can figure out these sorts of problems on your own. Do you know how to do that? Are you trying but it isn't stopping in your code? Is there some other issue with source level debugging? -- Born in Roswell... married an alien... http://emptyhammock.com/ http://edjective.org/ -- Born in Roswell... married an alien... http://emptyhammock.com/ http://edjective.org/
Re: tcp/ip sockets in apache module
On 23 May 2014, at 18:27, Jeremy Thompson wrote: I'm trying to write a module for apache. I've successfully compile in a test module that doesn't do a whole lot yet. I would like to be able to use tcp/ip sockets in the module to talk to another server. I added in some test code that should connect to my listening server and say hello whenever a request is made. I'm not getting any errors upon compiling the module with the sockets stuff added but its not actually doing anything. Basically its ignoring my connect and send code. Does anyone have a small working example of this or am I just way off base in using TCP/IP for external communication to a module. Thanks. Not that small, but: https://github.com/abligh/apache-websocket -- Alex Bligh
Re: tcp/ip sockets in apache module
On Fri, May 23, 2014 at 1:27 PM, Jeremy Thompson jer...@warehousesports.com wrote: I'm trying to write a module for apache. I've successfully compile in a test module that doesn't do a whole lot yet. I would like to be able to use tcp/ip sockets in the module to talk to another server. I added in some test code that should connect to my listening server and say hello whenever a request is made. I'm not getting any errors upon compiling the module with the sockets stuff added but its not actually doing anything. Basically its ignoring my connect and send code. Does anyone have a small working example of this or am I just way off base in using TCP/IP for external communication to a module. Thanks. ~Jeremy You need to know how to step through your code with a source level debugger so you can figure out these sorts of problems on your own. Do you know how to do that? Are you trying but it isn't stopping in your code? Is there some other issue with source level debugging? -- Born in Roswell... married an alien... http://emptyhammock.com/ http://edjective.org/
Re: tcp/ip sockets in apache module
On Fri, May 23, 2014 at 1:58 PM, Jeremy Thompson jer...@warehousesports.com wrote: I'Ll give that a shot. I'Ve used source level debugging in IDE's but it looks like I'Ll be using GDB for this one. Thanks. Have a look at http://httpd.apache.org/dev/debugging.html On Windows, you can start httpd normally and attach to the httpd child process from the Visual Studio IDE in order to debug. On 5/23/14 10:41 , Jeff Trawick traw...@gmail.com wrote: On Fri, May 23, 2014 at 1:27 PM, Jeremy Thompson jer...@warehousesports.com wrote: I'm trying to write a module for apache. I've successfully compile in a test module that doesn't do a whole lot yet. I would like to be able to use tcp/ip sockets in the module to talk to another server. I added in some test code that should connect to my listening server and say hello whenever a request is made. I'm not getting any errors upon compiling the module with the sockets stuff added but its not actually doing anything. Basically its ignoring my connect and send code. Does anyone have a small working example of this or am I just way off base in using TCP/IP for external communication to a module. Thanks. ~Jeremy You need to know how to step through your code with a source level debugger so you can figure out these sorts of problems on your own. Do you know how to do that? Are you trying but it isn't stopping in your code? Is there some other issue with source level debugging? -- Born in Roswell... married an alien... http://emptyhammock.com/ http://edjective.org/ -- Born in Roswell... married an alien... http://emptyhammock.com/ http://edjective.org/
RE: [EXTERNAL] Re: tcp/ip sockets in apache module
Also since there is no reason AFAIK that what you are attempting shouldn't work in your debugging make extra sure that the apache hook you are using is actually being called in your test requests, and that understand the order that hooks are called in - for example if set up the socket in one hook then expect to use in another - make sure that the socket isn't NULL or worse set to a random memory value in the second call.Also you can use a lot of ap_log_rerror entries in your code to help in debugging. http://ci.apache.org/projects/httpd/trunk/doxygen/group__APACHE__CORE__LOG.html#ga7b7009cfaad5a84be316e523d7ef1236 -Topher -Original Message- From: Jeff Trawick [mailto:traw...@gmail.com] Sent: Friday, May 23, 2014 1:14 PM To: modules-dev@httpd.apache.org Subject: [EXTERNAL] Re: tcp/ip sockets in apache module On Fri, May 23, 2014 at 1:58 PM, Jeremy Thompson jer...@warehousesports.com wrote: I'Ll give that a shot. I'Ve used source level debugging in IDE's but it looks like I'Ll be using GDB for this one. Thanks. Have a look at http://httpd.apache.org/dev/debugging.html On Windows, you can start httpd normally and attach to the httpd child process from the Visual Studio IDE in order to debug. On 5/23/14 10:41 , Jeff Trawick traw...@gmail.com wrote: On Fri, May 23, 2014 at 1:27 PM, Jeremy Thompson jer...@warehousesports.com wrote: I'm trying to write a module for apache. I've successfully compile in a test module that doesn't do a whole lot yet. I would like to be able to use tcp/ip sockets in the module to talk to another server. I added in some test code that should connect to my listening server and say hello whenever a request is made. I'm not getting any errors upon compiling the module with the sockets stuff added but its not actually doing anything. Basically its ignoring my connect and send code. Does anyone have a small working example of this or am I just way off base in using TCP/IP for external communication to a module. Thanks. ~Jeremy You need to know how to step through your code with a source level debugger so you can figure out these sorts of problems on your own. Do you know how to do that? Are you trying but it isn't stopping in your code? Is there some other issue with source level debugging? -- Born in Roswell... married an alien... http://emptyhammock.com/ http://edjective.org/ -- Born in Roswell... married an alien... http://emptyhammock.com/ http://edjective.org/
Re: tcp/ip sockets in apache module
On Fri, 2014-05-23 at 10:27 -0700, Jeremy Thompson wrote: I'm trying to write a module for apache. I've successfully compile in a test module that doesn't do a whole lot yet. I would like to be able to use tcp/ip sockets in the module to talk to another server. This may or may not make sense in your application, but have you considered using the proxy framework? That might involve a mod_proxy_yourprotocol to handle the tcp requirements. Your main module would then create a proxy subrequest when it needs a connection. See mod_include for an example, where !--#include virtual ... uses a proxy subrequest to make an HTTP connection. -- Nick Kew
