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-rw-r--r--libnetdata/os.c300
1 files changed, 0 insertions, 300 deletions
diff --git a/libnetdata/os.c b/libnetdata/os.c
deleted file mode 100644
index e4624be6..00000000
--- a/libnetdata/os.c
+++ /dev/null
@@ -1,300 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include "os.h"
-
-// ----------------------------------------------------------------------------
-// system functions
-// to retrieve settings of the system
-
-#define CPUS_FOR_COLLECTORS 0
-#define CPUS_FOR_NETDATA 1
-
-long get_system_cpus_with_cache(bool cache, bool for_netdata) {
- static long processors[2] = { 0, 0 };
-
- int index = for_netdata ? CPUS_FOR_NETDATA : CPUS_FOR_COLLECTORS;
-
- if(likely(cache && processors[index] > 0))
- return processors[index];
-
-#if defined(__APPLE__) || defined(__FreeBSD__)
-#if defined(__APPLE__)
-#define HW_CPU_NAME "hw.logicalcpu"
-#else
-#define HW_CPU_NAME "hw.ncpu"
-#endif
-
- int32_t tmp_processors;
- bool error = false;
-
- if (unlikely(GETSYSCTL_BY_NAME(HW_CPU_NAME, tmp_processors)))
- error = true;
- else
- processors[index] = tmp_processors;
-
- if(processors[index] < 1) {
- processors[index] = 1;
-
- if(error)
- netdata_log_error("Assuming system has %d processors.", processors[index]);
- }
-
- return processors[index];
-#else
-
- char filename[FILENAME_MAX + 1];
- snprintfz(filename, FILENAME_MAX, "%s/proc/stat",
- (!for_netdata && netdata_configured_host_prefix) ? netdata_configured_host_prefix : "");
-
- procfile *ff = procfile_open(filename, NULL, PROCFILE_FLAG_DEFAULT);
- if(!ff) {
- processors[index] = 1;
- netdata_log_error("Cannot open file '%s'. Assuming system has %ld processors.", filename, processors[index]);
- return processors[index];
- }
-
- ff = procfile_readall(ff);
- if(!ff) {
- processors[index] = 1;
- netdata_log_error("Cannot open file '%s'. Assuming system has %ld processors.", filename, processors[index]);
- return processors[index];
- }
-
- long tmp_processors = 0;
- unsigned int i;
- for(i = 0; i < procfile_lines(ff); i++) {
- if(!procfile_linewords(ff, i)) continue;
-
- if(strncmp(procfile_lineword(ff, i, 0), "cpu", 3) == 0)
- tmp_processors++;
- }
- procfile_close(ff);
-
- processors[index] = --tmp_processors;
-
- if(processors[index] < 1)
- processors[index] = 1;
-
- netdata_log_debug(D_SYSTEM, "System has %ld processors.", processors[index]);
- return processors[index];
-
-#endif /* __APPLE__, __FreeBSD__ */
-}
-
-pid_t pid_max = 32768;
-pid_t get_system_pid_max(void) {
-#ifdef __APPLE__
- // As we currently do not know a solution to query pid_max from the os
- // we use the number defined in bsd/sys/proc_internal.h in XNU sources
- pid_max = 99999;
- return pid_max;
-#elif __FreeBSD__
- int32_t tmp_pid_max;
-
- if (unlikely(GETSYSCTL_BY_NAME("kern.pid_max", tmp_pid_max))) {
- pid_max = 99999;
- netdata_log_error("Assuming system's maximum pid is %d.", pid_max);
- } else {
- pid_max = tmp_pid_max;
- }
-
- return pid_max;
-#else
-
- static char read = 0;
- if(unlikely(read)) return pid_max;
- read = 1;
-
- char filename[FILENAME_MAX + 1];
- snprintfz(filename, FILENAME_MAX, "%s/proc/sys/kernel/pid_max", netdata_configured_host_prefix?netdata_configured_host_prefix:"");
-
- unsigned long long max = 0;
- if(read_single_number_file(filename, &max) != 0) {
- netdata_log_error("Cannot open file '%s'. Assuming system supports %d pids.", filename, pid_max);
- return pid_max;
- }
-
- if(!max) {
- netdata_log_error("Cannot parse file '%s'. Assuming system supports %d pids.", filename, pid_max);
- return pid_max;
- }
-
- pid_max = (pid_t) max;
- return pid_max;
-
-#endif /* __APPLE__, __FreeBSD__ */
-}
-
-unsigned int system_hz;
-void get_system_HZ(void) {
- long ticks;
-
- if ((ticks = sysconf(_SC_CLK_TCK)) == -1) {
- netdata_log_error("Cannot get system clock ticks");
- }
-
- system_hz = (unsigned int) ticks;
-}
-
-static inline unsigned long cpuset_str2ul(char **s) {
- unsigned long n = 0;
- char c;
- for(c = **s; c >= '0' && c <= '9' ; c = *(++*s)) {
- n *= 10;
- n += c - '0';
- }
- return n;
-}
-
-unsigned long read_cpuset_cpus(const char *filename, long system_cpus) {
- static char *buf = NULL;
- static size_t buf_size = 0;
-
- if(!buf) {
- buf_size = 100U + 6 * system_cpus; // taken from kernel/cgroup/cpuset.c
- buf = mallocz(buf_size + 1);
- }
-
- int ret = read_file(filename, buf, buf_size);
-
- if(!ret) {
- char *s = buf;
- unsigned long ncpus = 0;
-
- // parse the cpuset string and calculate the number of cpus the cgroup is allowed to use
- while (*s) {
- if (isspace(*s)) {
- s++;
- continue;
- }
- unsigned long n = cpuset_str2ul(&s);
- ncpus++;
- if(*s == ',') {
- s++;
- continue;
- }
- if(*s == '-') {
- s++;
- unsigned long m = cpuset_str2ul(&s);
- ncpus += m - n; // calculate the number of cpus in the region
- }
- s++;
- }
-
- if(!ncpus)
- return 0;
-
- return ncpus;
- }
-
- return 0;
-}
-
-// =====================================================================================================================
-// FreeBSD
-
-#if __FreeBSD__
-
-const char *os_type = "freebsd";
-
-int getsysctl_by_name(const char *name, void *ptr, size_t len) {
- size_t nlen = len;
-
- if (unlikely(sysctlbyname(name, ptr, &nlen, NULL, 0) == -1)) {
- netdata_log_error("FREEBSD: sysctl(%s...) failed: %s", name, strerror(errno));
- return 1;
- }
- if (unlikely(nlen != len)) {
- netdata_log_error("FREEBSD: sysctl(%s...) expected %lu, got %lu", name, (unsigned long)len, (unsigned long)nlen);
- return 1;
- }
- return 0;
-}
-
-int getsysctl_simple(const char *name, int *mib, size_t miblen, void *ptr, size_t len) {
- size_t nlen = len;
-
- if (unlikely(!mib[0]))
- if (unlikely(getsysctl_mib(name, mib, miblen)))
- return 1;
-
- if (unlikely(sysctl(mib, miblen, ptr, &nlen, NULL, 0) == -1)) {
- netdata_log_error("FREEBSD: sysctl(%s...) failed: %s", name, strerror(errno));
- return 1;
- }
- if (unlikely(nlen != len)) {
- netdata_log_error("FREEBSD: sysctl(%s...) expected %lu, got %lu", name, (unsigned long)len, (unsigned long)nlen);
- return 1;
- }
-
- return 0;
-}
-
-int getsysctl(const char *name, int *mib, size_t miblen, void *ptr, size_t *len) {
- size_t nlen = *len;
-
- if (unlikely(!mib[0]))
- if (unlikely(getsysctl_mib(name, mib, miblen)))
- return 1;
-
- if (unlikely(sysctl(mib, miblen, ptr, len, NULL, 0) == -1)) {
- netdata_log_error("FREEBSD: sysctl(%s...) failed: %s", name, strerror(errno));
- return 1;
- }
- if (unlikely(ptr != NULL && nlen != *len)) {
- netdata_log_error("FREEBSD: sysctl(%s...) expected %lu, got %lu", name, (unsigned long)*len, (unsigned long)nlen);
- return 1;
- }
-
- return 0;
-}
-
-int getsysctl_mib(const char *name, int *mib, size_t len) {
- size_t nlen = len;
-
- if (unlikely(sysctlnametomib(name, mib, &nlen) == -1)) {
- netdata_log_error("FREEBSD: sysctl(%s...) failed: %s", name, strerror(errno));
- return 1;
- }
- if (unlikely(nlen != len)) {
- netdata_log_error("FREEBSD: sysctl(%s...) expected %lu, got %lu", name, (unsigned long)len, (unsigned long)nlen);
- return 1;
- }
- return 0;
-}
-
-
-#endif
-
-
-// =====================================================================================================================
-// MacOS
-
-#if __APPLE__
-
-const char *os_type = "macos";
-
-int getsysctl_by_name(const char *name, void *ptr, size_t len) {
- size_t nlen = len;
-
- if (unlikely(sysctlbyname(name, ptr, &nlen, NULL, 0) == -1)) {
- netdata_log_error("MACOS: sysctl(%s...) failed: %s", name, strerror(errno));
- return 1;
- }
- if (unlikely(nlen != len)) {
- netdata_log_error("MACOS: sysctl(%s...) expected %lu, got %lu", name, (unsigned long)len, (unsigned long)nlen);
- return 1;
- }
- return 0;
-}
-
-#endif
-
-// =====================================================================================================================
-// Linux
-
-#if __linux__
-
-const char *os_type = "linux";
-
-#endif
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