Dynamic library example
Hi, i've programmed a simple dynamic library system for menuet. the principe is that the mdl (menuet dynamic library) is a binary file, loaded as a normal file), it containt in the header the adress from each function. The function parameter are pushed in the stack before you call the function. and the returned value is placed in the stack you can resolve the function adress with the macro: mdl_get_fn_addr fn_num , fn_ptr the example code is a implementation of the IPC system from menuet the function in the library are dd get_pid ( dword get_pid (char* proc_name_ptr) ) dd send ( dword send(dword pid,char * msg_data_ptr, dword msg_len) ) dd init ( void init() ) dd receive ( ipc_message* receive() ) get_pid return the pid from the procces that the name is in proc_name_ptr send is for sending a message to a process identified with the pid, you must specify the message len init initialize the ipc - message area return the adress of the received ipc-message ipc_message* is the adress of a ipc_message that contain : +0 dd sender pid +4 dd message len +8 db message data the file contain: client source code (.asm) server source code (.asm) library source code (.asm) mdl implementation include file (.inc) client binary file server binary file library binary file (.mdl) (you must copy this file in /hd0/1/kolibri/lib Download IPC2.ZIP => http://stephaneweg.cabspace.com/files/ipc2.zip
Hi, i've programmed a simple dynamic library system for menuet. the principe is that the mdl (menuet dynamic library) is a binary file, loaded as a normal file), it containt in the header the adress from each function. The function parameter are pushed in the stack before you call the function. and the returned value is placed in the stack you can resolve the function adress with the macro: mdl_get_fn_addr fn_num , fn_ptr the example code is a implementation of the IPC system from menuet the function in the library are dd get_pid ( dword get_pid (char* proc_name_ptr) ) dd send ( dword send(dword pid,char * msg_data_ptr, dword msg_len) ) dd init ( void init() ) dd receive ( ipc_message* receive() ) get_pid return the pid from the procces that the name is in proc_name_ptr send is for sending a message to a process identified with the pid, you must specify the message len init initialize the ipc - message area return the adress of the received ipc-message ipc_message* is the adress of a ipc_message that contain : +0 dd sender pid +4 dd message len +8 db message data the file contain: client source code (.asm) server source code (.asm) library source code (.asm) mdl implementation include file (.inc) client binary file server binary file library binary file (.mdl) (you must copy this file in /hd0/1/kolibri/lib Download IPC2.ZIP => http://stephaneweg.cabspace.com/files/ipc2.zip