Hi, Thanks! Thats great, im looking forward to it :-) Greetigns Manuel

Hi Manuel,

I will show you how to do it tomorrow the latest.

Best, John

...

Hi,

I would like to log to a standard container like std::list<std::string> or something similar, so i can send my logs to another program over network. But i have problems defining my own destination. For now it would be ok, to log just to a string. But i don't understand how to define my own destination in the right way. I looked at

http://torjo.com/log2/doc/html/namespaceboost_1_1logging_1_1manipulator.html...

...

but i don't understand the "sharing data" part well. Maybe someone can help me out here?

I have so far: struct to_string : boost::logging::destination::class_<to_string, boost::logging::destination::implement_op_equal::has_context> { std::string s; to_string(std::string s) : s(s) {}

bool operator==(const to_string& other) { return s == other.s; }

// param = const std::string& // (in other words, it's the arg_type from your destination base class) void operator()(param msg) const { // s.append(msg); }

But even that is not compiling. Any help would be appreciated! :-) Greetings Manuel Jung

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Hi John, thanks for the code. But im still missing one point. How do i access the data in the std::vector? I understand that it is in a shared pointer now. The context obeject is not accessible from outside. I have done this: to_string To_String; And than added this to my logger destinations: g_l()->writer().add_destination( To_String ); Is this right, or do i have to write g_l()->writer().add_destination( Bufferwriter.to_string() ); Greetings Manuel

Hi Manuel,

Sorry for the late reply. Here it is:

struct string_logger { std::vector<std::string> strs; };

struct to_string : boost::logging::destination::class_<to_string, boost::logging::destination::implement_op_equal::has_context>, boost::logging::destination::non_const_context<string_logger> {

bool operator==(const to_string& other) const { return &context() == &other.context(); } void operator()(param msg) const { context().strs.push_back(msg); } };

Best, John

...

Hi, Thanks! Thats great, im looking forward to it :-) Greetigns Manuel

Hi, Thank you ver much. This is working now :-). Maybe a nice addition to the documentation? Cheers, Manuel John Torjo wrote:

Manuel Jung wrote:

...

Hi John,

thanks for the code. But im still missing one point. How do i access the data in the std::vector? I understand that it is in a shared pointer now. The context obeject is not accessible from outside. I have done this:

to_string To_String;

And than added this to my logger destinations:

g_l()->writer().add_destination( To_String );

This is fine. To access the vector, just add a member function of to_string.

const std::vector<std::string> & strings() const { return context().strs; }

Best, John

Hey John, You said, you would show me the next day latest, but you didn't. Can i kindly ask, if you are still willing to help? Thanks, Manu

Hi Manuel,

I will show you how to do it tomorrow the latest.

Best, John

...

Hi,

I would like to log to a standard container like std::list<std::string> or something similar, so i can send my logs to another program over network. But i have problems defining my own destination. For now it would be ok, to log just to a string. But i don't understand how to define my own destination in the right way. I looked at

http://torjo.com/log2/doc/html/namespaceboost_1_1logging_1_1manipulator.html...

...

but i don't understand the "sharing data" part well. Maybe someone can help me out here?

I have so far: struct to_string : boost::logging::destination::class_<to_string, boost::logging::destination::implement_op_equal::has_context> { std::string s; to_string(std::string s) : s(s) {}

bool operator==(const to_string& other) { return s == other.s; }

// param = const std::string& // (in other words, it's the arg_type from your destination base class) void operator()(param msg) const { // s.append(msg); }

But even that is not compiling. Any help would be appreciated! :-) Greetings Manuel Jung

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