example: create calculator server app
Change-Id: Ie2ad4ff00208056c48c0d596053b20b82f1fb3a1
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/Makefile.am b/Makefile.am
index 2a24517..288b0a8 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -43,4 +43,4 @@
pkgconfiglib_DATA = sdbusplus.pc
endif
-SUBDIRS = test tools
+SUBDIRS = . tools example test
diff --git a/configure.ac b/configure.ac
index 493ca4f..d2156ab 100644
--- a/configure.ac
+++ b/configure.ac
@@ -86,6 +86,7 @@
# Create configured output
AC_CONFIG_FILES([Makefile test/Makefile tools/Makefile tools/setup.py])
+AC_CONFIG_FILES([example/Makefile])
AC_CONFIG_FILES([sdbusplus.pc])
AC_CONFIG_FILES([sdbusplus/bus.hpp])
AC_CONFIG_FILES([sdbusplus/server.hpp])
diff --git a/example/Makefile.am b/example/Makefile.am
new file mode 100644
index 0000000..c9fb907
--- /dev/null
+++ b/example/Makefile.am
@@ -0,0 +1,44 @@
+noinst_PROGRAMS = calculator-server
+
+calculator_server_generated_files = \
+ net/poettering/Calculator/server.hpp \
+ net/poettering/Calculator/server.cpp \
+ net/poettering/Calculator/error.hpp \
+ net/poettering/Calculator/error.cpp
+
+calculator_markdown_generated_files = \
+ calculator.md
+
+calculator_server_SOURCES = \
+ calculator-server.cpp $(calculator_server_generated_files)
+calculator_server_CXXFLAGS = $(SYSTEMD_CFLAGS)
+calculator_server_LDADD = $(SYSTEMD_LIBS) ../libsdbusplus.la
+
+BUILT_SOURCES = \
+ $(calculator_server_generated_files) \
+ $(calculator_markdown_generated_files)
+CLEANFILES = \
+ $(calculator_server_generated_files) \
+ $(calculator_markdown_generated_files)
+
+net/poettering/Calculator/server.hpp:
+ @top_srcdir@/tools/sdbus++ -r . \
+ interface server-header net.poettering.Calculator > $@
+
+net/poettering/Calculator/server.cpp:
+ @top_srcdir@/tools/sdbus++ -r . \
+ interface server-cpp net.poettering.Calculator > $@
+
+net/poettering/Calculator/error.hpp:
+ @top_srcdir@/tools/sdbus++ -r . \
+ error exception-header net.poettering.Calculator > $@
+
+net/poettering/Calculator/error.cpp:
+ @top_srcdir@/tools/sdbus++ -r . \
+ error exception-cpp net.poettering.Calculator > $@
+
+calculator.md:
+ @top_srcdir@/tools/sdbus++ -r . \
+ interface markdown net.poettering.Calculator > $@
+ @top_srcdir@/tools/sdbus++ -r . \
+ error markdown net.poettering.Calculator >> $@
diff --git a/example/calculator-server.cpp b/example/calculator-server.cpp
new file mode 100644
index 0000000..e72c493
--- /dev/null
+++ b/example/calculator-server.cpp
@@ -0,0 +1,72 @@
+#include <iostream>
+#include <sdbusplus/server.hpp>
+#include <net/poettering/Calculator/server.hpp>
+#include <net/poettering/Calculator/error.hpp>
+
+using Calculator_inherit = sdbusplus::server::object_t<
+ sdbusplus::net::poettering::server::Calculator>;
+
+/** Example implementation of net.poettering.Calculator */
+struct Calculator : Calculator_inherit
+{
+ /** Constructor */
+ Calculator(sdbusplus::bus::bus& bus, const char* path) :
+ Calculator_inherit(bus, path) { }
+
+ /** Multiply (x*y), update lastResult */
+ int64_t multiply(int64_t x, int64_t y) override
+ {
+ return lastResult(x*y);
+ }
+
+ /** Divide (x/y), update lastResult
+ *
+ * Throws DivisionByZero on error.
+ */
+ int64_t divide(int64_t x, int64_t y) override
+ {
+ using sdbusplus::net::poettering::Calculator::Error::DivisionByZero;
+ if (y == 0)
+ {
+ status(State::Error);
+ throw DivisionByZero();
+ }
+
+ return lastResult(x/y);
+ }
+
+ /** Clear lastResult, broadcast 'Cleared' signal */
+ void clear() override
+ {
+ auto v = lastResult();
+ lastResult(0);
+ cleared(v);
+ return;
+ }
+};
+
+int main()
+{
+ // Define a dbus path location to place the object.
+ constexpr auto path = "/net/poettering/calculator";
+
+ // Create a new bus and affix an object manager for the subtree path we
+ // intend to place objects at..
+ auto b = sdbusplus::bus::new_default();
+ sdbusplus::server::manager_t m{b, path};
+
+ // Reserve the dbus service name : net.poettering.Calculator
+ b.request_name("net.poettering.Calculator");
+
+ // Create a calculator object at /net/poettering/calculator
+ Calculator c1{b, path};
+
+ // Handle dbus processing forever.
+ while(1)
+ {
+ b.process_discard(); // discard any unhandled messages
+ b.wait();
+ }
+
+ return 0;
+}