lib: Deprecate ouroboros_init and ourboros_fini

This commit deprecates ouroboros_init and ouroboros_fini and adds them
as a constructor or destructor, causing these function to be run
automatically when a program that links to the library calls and exits
main(). For this to fully work, the library had to be split so that we
can avoid the irmd calling these functions (the IRMd has to create the
shm structures on which these calls depend).

The library is split in 3 parts: libouroboros-dev, libouroboros-irm
and libouroboros-common. The latter is linked to the other two so that
including libouroboros-dev or libouroboros-irm will also link
libouroboros-common.

3 files changed, 3 insertions, 29 deletions

diff --git a/src/tools/echo/CMakeLists.txt b/src/tools/echo/CMakeLists.txt
index 7cecfe50..0cca8466 100644
--- a/src/tools/echo/CMakeLists.txt
+++ b/src/tools/echo/CMakeLists.txt
@@ -11,6 +11,6 @@ set(SOURCE_FILES
 
 add_executable(echo-app ${SOURCE_FILES})
 
-target_link_libraries(echo-app LINK_PUBLIC ouroboros)
+target_link_libraries(echo-app LINK_PUBLIC ouroboros-dev)
 
 install(TARGETS echo-app RUNTIME DESTINATION usr/bin)
diff --git a/src/tools/echo/echo.c b/src/tools/echo/echo.c
index d07d99a3..91ab552d 100644
--- a/src/tools/echo/echo.c
+++ b/src/tools/echo/echo.c
@@ -41,7 +41,6 @@ static void usage(void)
 int main(int argc, char ** argv)
 {
         int ret = -1;
-        char ** argv_dup = argv;
         bool server = false;
 
         argc--;
@@ -58,21 +57,10 @@ int main(int argc, char ** argv)
                 argv++;
         }
 
-        if (server) {
-                if (ouroboros_init(argv_dup[0])) {
-                        printf("Failed to init AP.\n");
-                        return -1;
-                }
+        if (server)
                 ret = server_main();
-        } else {
-                if (ouroboros_init(NULL)) {
-                        printf("Failed to init AP.\n");
-                        return -1;
-                }
+        else
                 ret = client_main();
-        }
-
-        ouroboros_fini();
 
         return ret;
 }
diff --git a/src/tools/echo/echo_server.c b/src/tools/echo/echo_server.c
index 1e57ed60..14e0aa58 100644
--- a/src/tools/echo/echo_server.c
+++ b/src/tools/echo/echo_server.c
@@ -27,14 +27,6 @@
 
 #include <ouroboros/dev.h>
 
-void shutdown_server(int signo)
-{
-        (void) signo;
-
-        ouroboros_fini();
-        exit(EXIT_SUCCESS);
-}
-
 int server_main(void)
 {
         int    fd = 0;
@@ -44,12 +36,6 @@ int server_main(void)
 
         printf("Starting the server.\n");
 
-        /* Manual cleanup is required for now */
-        if (signal(SIGINT, shutdown_server) == SIG_ERR) {
-                printf("Can't install signal handler.\n");
-                return -1;
-        }
-
         while (true) {
                 fd = flow_accept(&qs, NULL);
                 if (fd < 0) {