1 files changed, 67 insertions, 0 deletions
diff --git a/libnetdata/os.h b/libnetdata/os.h
new file mode 100644
index 0000000..67abf0b
--- /dev/null
+++ b/libnetdata/os.h
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_OS_H
+#define NETDATA_OS_H
+
+#include "libnetdata.h"
+
+// =====================================================================================================================
+// FreeBSD
+
+#if __FreeBSD__
+
+#include <sys/sysctl.h>
+
+#define GETSYSCTL_BY_NAME(name, var) getsysctl_by_name(name, &(var), sizeof(var))
+int getsysctl_by_name(const char *name, void *ptr, size_t len);
+
+#define GETSYSCTL_MIB(name, mib) getsysctl_mib(name, mib, sizeof(mib)/sizeof(int))
+
+int getsysctl_mib(const char *name, int *mib, size_t len);
+
+#define GETSYSCTL_SIMPLE(name, mib, var) getsysctl_simple(name, mib, sizeof(mib)/sizeof(int), &(var), sizeof(var))
+#define GETSYSCTL_WSIZE(name, mib, var, size) getsysctl_simple(name, mib, sizeof(mib)/sizeof(int), var, size)
+
+int getsysctl_simple(const char *name, int *mib, size_t miblen, void *ptr, size_t len);
+
+#define GETSYSCTL_SIZE(name, mib, size) getsysctl(name, mib, sizeof(mib)/sizeof(int), NULL, &(size))
+#define GETSYSCTL(name, mib, var, size) getsysctl(name, mib, sizeof(mib)/sizeof(int), &(var), &(size))
+
+int getsysctl(const char *name, int *mib, size_t miblen, void *ptr, size_t *len);
+
+#endif
+
+// =====================================================================================================================
+// MacOS
+
+#if __APPLE__
+
+#include <sys/sysctl.h>
+
+#define GETSYSCTL_BY_NAME(name, var) getsysctl_by_name(name, &(var), sizeof(var))
+int getsysctl_by_name(const char *name, void *ptr, size_t len);
+
+#endif
+
+// =====================================================================================================================
+// common defs for Apple/FreeBSD/Linux
+
+extern const char *os_type;
+
+extern int processors;
+long get_system_cpus(void);
+
+extern pid_t pid_max;
+pid_t get_system_pid_max(void);
+
+extern unsigned int system_hz;
+void get_system_HZ(void);
+
+#include <sys/timex.h>
+#if defined(__FreeBSD__) || defined(__APPLE__)
+#define ADJUST_TIMEX(x) ntp_adjtime(x)
+#else
+#define ADJUST_TIMEX(x) adjtimex(x)
+#endif
+
+#endif //NETDATA_OS_H