Add a function, cgroup_version(), that returns the current
version of the libcgroup library.
Signed-off-by: Tom Hromatka <tom.hroma...@oracle.com>
---
configure.ac | 1 +
include/libcgroup/.gitignore | 1 +
include/libcgroup/{init.h => init.h.in} | 19 +++++++++++++++++++
src/api.c | 11 +++++++++++
src/libcgroup.map | 1 +
5 files changed, 33 insertions(+)
create mode 100644 include/libcgroup/.gitignore
rename include/libcgroup/{init.h => init.h.in} (80%)
diff --git a/configure.ac b/configure.ac
index 7b43a9ec16b6..2d10a527c1d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -201,6 +201,7 @@ AC_CONFIG_FILES([Makefile
scripts/init.d/cgred
samples/Makefile
include/Makefile
+ include/libcgroup/init.h
doc/Makefile
doc/man/Makefile
dist/Makefile
diff --git a/include/libcgroup/.gitignore b/include/libcgroup/.gitignore
new file mode 100644
index 000000000000..6d7255a8ce8a
--- /dev/null
+++ b/include/libcgroup/.gitignore
@@ -0,0 +1 @@
+init.h
diff --git a/include/libcgroup/init.h b/include/libcgroup/init.h.in
similarity index 80%
rename from include/libcgroup/init.h
rename to include/libcgroup/init.h.in
index ea2dcc98bc60..9c63e684ada6 100644
--- a/include/libcgroup/init.h
+++ b/include/libcgroup/init.h.in
@@ -13,6 +13,25 @@
extern "C" {
#endif
+#define CGROUP_VER_MAJOR @LIBRARY_VERSION_MAJOR@
+#define CGROUP_VER_MINOR @LIBRARY_VERSION_MINOR@
+#define CGROUP_VER_RELEASE @LIBRARY_VERSION_RELEASE@
+
+struct cgroup_library_version {
+ unsigned int major;
+ unsigned int minor;
+ unsigned int release;
+};
+
+/**
+ * Query the library version information
+ *
+ * This function returns a pointer to a populated cgroup_library_version
+ * struct. The caller does not need to free the structure when finished.
+ *
+ */
+const struct cgroup_library_version *cgroup_version(void);
+
/**
* @defgroup group_init 1. Initialization
* @{
diff --git a/src/api.c b/src/api.c
index bd77b54da7d5..91f4615a2f43 100644
--- a/src/api.c
+++ b/src/api.c
@@ -50,6 +50,12 @@
#include <linux/un.h>
#include <grp.h>
+const struct cgroup_library_version library_version = {
+ .major = CGROUP_VER_MAJOR,
+ .minor = CGROUP_VER_MINOR,
+ .release = CGROUP_VER_RELEASE,
+};
+
/*
* The errno which happend the last time (have to be thread specific)
*/
@@ -5680,3 +5686,8 @@ int cgroup_get_controller_version(const char * const
controller,
return ECGROUPNOTEXIST;
}
+
+const struct cgroup_library_version *cgroup_version(void)
+{
+ return &library_version;
+}
diff --git a/src/libcgroup.map b/src/libcgroup.map
index 3ce7e1b00c58..99788ac56f45 100644
--- a/src/libcgroup.map
+++ b/src/libcgroup.map
@@ -144,4 +144,5 @@ CGROUP_3.0 {
cgroup_convert_cgroup;
cgroup_cgxget;
cgroup_cgxset;
+ cgroup_version;
} CGROUP_2.0;
--
2.31.1
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