Eldbus
Date
2012 (created)

Table of Contents

Introduction

Eldbus is a wrapper around the dbus library, which is a message bus system. It also implements a set of specifications using dbus as interprocess communication.

Modules

How to compile

Eldbus is a library your application links to. The procedure for this is very simple. You simply have to compile your application with the appropriate compiler flags that the pkg-config script outputs. For example:

Compiling C or C++ files into object files:

gcc -c -o main.o main.c `pkg-config --cflags eldbus`

Linking object files into a binary executable:

gcc -o my_application main.o `pkg-config --libs eldbus`

See pkgconfig

Next Steps

After you understood what Eldbus is and installed it in your system you should proceed understanding the programming interface.

Recommended reading:

Introductory Example

//Compile with:
// gcc -o ofono-dial ofono-dial.c `pkg-config --cflags --libs eldbus ecore`
#include "Eldbus.h"
#include <Ecore.h>
static void
on_dial(void *data EINA_UNUSED, const Eldbus_Message *msg, Eldbus_Pending *pending EINA_UNUSED)
{
const char *errname, *errmsg;
const char *call_path;
if (eldbus_message_error_get(msg, &errname, &errmsg))
{
fprintf(stderr, "Error: %s %s\n", errname, errmsg);
return;
}
if (!eldbus_message_arguments_get(msg, "o", &call_path))
{
fprintf(stderr, "Error: could not get call path\n");
return;
}
printf("dialed! call path: %s\n", call_path);
}
int
main(int argc, char *argv[])
{
Eldbus_Proxy *manager;
Eldbus_Pending *pending;
const char *number, *hide_callerid;
if (argc < 2)
{
fprintf(stderr, "Usage:\n\t%s <number> [hide_callerid]\n", argv[0]);
return EXIT_FAILURE;
}
number = argv[1];
hide_callerid = (argc > 2) ? argv[2] : "";
conn = eldbus_connection_get(ELDBUS_CONNECTION_TYPE_SYSTEM);
if (!conn)
{
fprintf(stderr, "Error: could not get system bus\n");
return EXIT_FAILURE;
}
obj = eldbus_object_get(conn, "org.ofono", "/");
if (!obj)
{
fprintf(stderr, "Error: could not get object\n");
return EXIT_FAILURE;
}
manager = eldbus_proxy_get(obj, "org.ofono.Manager");
if (!manager)
{
fprintf(stderr, "Error: could not get proxy\n");
return EXIT_FAILURE;
}
pending = eldbus_proxy_call(manager, "Dial", on_dial, NULL,
-1, "ss", number, hide_callerid);
if (!pending)
{
fprintf(stderr, "Error: could not call\n");
return EXIT_FAILURE;
}
return 0;
}

More examples can be found at Eldbus Examples.