This patch addresses a need to enable using common mainloop for the
ell-based apps that desire to use common bluetooth fuctionality
(e.g., bt_shell).
Note: A bit awkward callback handling there is due to the discrepancy
in the arg type for signo (signal number).
src/shared/mainloop.h:
typedef void (*mainloop_signal_func) (int signum, void *user_data)
and ell/main.h:
typedef void (*l_main_signal_cb_t) (uint32_t signo, void *user_data)
My guess is that ell derives the unsigned int type from <sys/signalfd.h>,
where ssi_signo is defined as uint32_t. BlueZ is probably following the
standard Linux signal handling, where signal is represented as an int.
Inga Stotland (1):
shared/mainloop: Add ell-based mainloop implementation
Makefile.am | 11 +++-
src/shared/mainloop-ell.c | 129 ++++++++++++++++++++++++++++++++++++++
2 files changed, 137 insertions(+), 3 deletions(-)
create mode 100644 src/shared/mainloop-ell.c
--
2.21.0
This adds implementation of wrapper mainloop functions to interact with
ell main APIs, enabling support for the applications that link with ell
library and use mainloop functionality.
---
Makefile.am | 11 +++-
src/shared/mainloop-ell.c | 129 ++++++++++++++++++++++++++++++++++++++
2 files changed, 137 insertions(+), 3 deletions(-)
create mode 100644 src/shared/mainloop-ell.c
diff --git a/Makefile.am b/Makefile.am
index 9d25a815b..0fccc2e72 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -162,6 +162,10 @@ CLEANFILES += $(ell_built_sources)
noinst_LTLIBRARIES += src/libshared-glib.la src/libshared-mainloop.la
+if LIBSHARED_ELL
+noinst_LTLIBRARIES += src/libshared-ell.la
+endif
+
shared_sources = src/shared/io.h src/shared/timeout.h \
src/shared/queue.h src/shared/queue.c \
src/shared/util.h src/shared/util.c \
@@ -206,10 +210,10 @@ src_libshared_mainloop_la_SOURCES = $(shared_sources) \
src/shared/mainloop-notify.c
if LIBSHARED_ELL
-noinst_LTLIBRARIES += src/libshared-ell.la
-
src_libshared_ell_la_SOURCES = $(shared_sources) \
- src/shared/io-ell.c
+ src/shared/io-ell.c \
+ src/shared/mainloop.h \
+ src/shared/mainloop-ell.c
endif
attrib_sources = attrib/att.h attrib/att-database.h attrib/att.c \
diff --git a/src/shared/mainloop-ell.c b/src/shared/mainloop-ell.c
new file mode 100644
index 000000000..027c8a0ef
--- /dev/null
+++ b/src/shared/mainloop-ell.c
@@ -0,0 +1,129 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2019 Intel Corporation
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include <ell/ell.h>
+
+#include "mainloop.h"
+
+static bool is_initialized;
+static int exit_status;
+static mainloop_signal_func sig_func;
+
+static void l_sig_func(uint32_t signo, void *user_data)
+{
+ if (sig_func)
+ sig_func(signo, user_data);
+}
+
+void mainloop_init(void)
+{
+ is_initialized = l_main_init();
+}
+
+void mainloop_quit(void)
+{
+ l_main_quit();
+}
+
+void mainloop_exit_success(void)
+{
+ exit_status = EXIT_SUCCESS;
+ l_main_quit();
+}
+
+void mainloop_exit_failure(void)
+{
+ exit_status = EXIT_FAILURE;
+ l_main_quit();
+}
+
+int mainloop_run(void)
+{
+ if (!is_initialized)
+ return -EINVAL;
+
+ l_main_run();
+
+ is_initialized = false;
+ sig_func = NULL;
+
+ return exit_status;
+}
+
+int mainloop_run_with_signal(mainloop_signal_func func, void *user_data)
+{
+ if (!is_initialized || !func)
+ return -EINVAL;
+
+ /* Workaround for sign discrepancy in ell and bluez */
+ sig_func = func;
+
+ return l_main_run_with_signal(l_sig_func, user_data);
+}
+
+int mainloop_add_fd(int fd, uint32_t events, mainloop_event_func callback,
+ void *user_data, mainloop_destroy_func destroy)
+{
+ return -ENOSYS;
+}
+
+int mainloop_modify_fd(int fd, uint32_t events)
+{
+ return -ENOSYS;
+}
+
+int mainloop_remove_fd(int fd)
+{
+ return -ENOSYS;
+}
+
+int mainloop_add_timeout(unsigned int msec, mainloop_timeout_func callback,
+ void *user_data, mainloop_destroy_func destroy)
+{
+ return -ENOSYS;
+}
+
+int mainloop_modify_timeout(int fd, unsigned int msec)
+{
+ return -ENOSYS;
+}
+
+int mainloop_remove_timeout(int id)
+{
+ return -ENOSYS;
+}
+
+int mainloop_set_signal(sigset_t *mask, mainloop_signal_func callback,
+ void *user_data, mainloop_destroy_func destroy)
+{
+ return -ENOSYS;
+}
--
2.21.0