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-rw-r--r--lib/os_mon/c_src/cpu_sup.c214
-rw-r--r--lib/os_mon/doc/src/cpu_sup.xml2
-rw-r--r--lib/os_mon/src/cpu_sup.erl89
-rw-r--r--lib/os_mon/test/cpu_sup_SUITE.erl2
-rw-r--r--lib/os_mon/vsn.mk2
5 files changed, 221 insertions, 88 deletions
diff --git a/lib/os_mon/c_src/cpu_sup.c b/lib/os_mon/c_src/cpu_sup.c
index e9fd75a32c..9e217db105 100644
--- a/lib/os_mon/c_src/cpu_sup.c
+++ b/lib/os_mon/c_src/cpu_sup.c
@@ -31,15 +31,28 @@
#include <unistd.h>
#include <string.h>
+#if (defined(__APPLE__) && defined(__MACH__)) || defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <limits.h>
+#include <fcntl.h>
+#endif
+#if defined(__FreeBSD__) || defined(__DragonFly__)
+#include <kvm.h>
+#include <sys/user.h>
+#endif
+
#if defined(__sun__)
#include <kstat.h>
#endif
-#include <sys/sysinfo.h>
#include <errno.h>
+#if defined(__sun__) || defined(__linux__)
+#include <sys/sysinfo.h>
+#endif
+
#if defined(__linux__)
-#include <string.h> /* strlen */
#define PROCSTAT "/proc/stat"
#define BUFFERSIZE (256)
@@ -59,6 +72,13 @@ typedef struct {
#endif
+#if defined(__FreeBSD__)
+#include <sys/resource.h>
+#include <sys/sysctl.h>
+#define CU_BSD_VALUES (6)
+#endif
+
+
#define FD_IN (0)
#define FD_OUT (1)
#define FD_ERR (2)
@@ -124,10 +144,15 @@ static void util_measure(unsigned int **result_vec, int *result_sz);
#if defined(__sun__)
static unsigned int misc_measure(char* name);
#endif
-static void send(unsigned int data);
+static void sendi(unsigned int data);
static void sendv(unsigned int data[], int ints);
static void error(char* err_msg);
+#if (defined(__APPLE__) && defined(__MACH__)) || defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
+static void bsd_count_procs(void);
+static void bsd_loadavg(int);
+#endif
+
#if defined(__sun__)
static kstat_ctl_t *kstat_ctl;
#endif
@@ -138,12 +163,16 @@ static int processors_online() {
}
#endif
+#if defined(__FreeBSD__)
+void getsysctl(const char *, void *, size_t);
+#endif
+
int main(int argc, char** argv) {
char cmd;
int rc;
int sz;
unsigned int *rv;
-#if defined(__linux__)
+#if defined(__linux__) || defined(__FreeBSD__)
unsigned int no_of_cpus = 0;
#endif
@@ -156,7 +185,14 @@ int main(int argc, char** argv) {
#if defined(__linux__)
no_of_cpus = processors_online();
if ( (rv = (unsigned int*)malloc(sizeof(unsigned int)*(2 + 2*no_of_cpus*CU_VALUES))) == NULL) {
- error("cpu_cup: malloc error");
+ error("cpu_sup: malloc error");
+ }
+#endif
+
+#if defined(__FreeBSD__)
+ getsysctl("hw.ncpu", &no_of_cpus, sizeof(int));
+ if ( (rv = (unsigned int*)malloc(sizeof(unsigned int)*(2 + 2*no_of_cpus*CU_BSD_VALUES))) == NULL) {
+ error("cpu_sup: malloc error");
}
#endif
@@ -173,20 +209,104 @@ int main(int argc, char** argv) {
error("Erlang has closed");
switch(cmd) {
- case PING: send(4711); break;
+ case PING: sendi(4711); break;
#if defined(__sun__)
- case NPROCS: send(misc_measure("nproc")); break;
- case AVG1: send(misc_measure("avenrun_1min")); break;
- case AVG5: send(misc_measure("avenrun_5min")); break;
- case AVG15: send(misc_measure("avenrun_15min")); break;
+ case NPROCS: sendi(misc_measure("nproc")); break;
+ case AVG1: sendi(misc_measure("avenrun_1min")); break;
+ case AVG5: sendi(misc_measure("avenrun_5min")); break;
+ case AVG15: sendi(misc_measure("avenrun_15min")); break;
+#elif defined(__OpenBSD__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD__) || defined(__DragonFly__)
+ case NPROCS: bsd_count_procs(); break;
+ case AVG1: bsd_loadavg(0); break;
+ case AVG5: bsd_loadavg(1); break;
+ case AVG15: bsd_loadavg(2); break;
#endif
+#if defined(__sun__) || defined(__linux__) || defined(__FreeBSD__)
case UTIL: util_measure(&rv,&sz); sendv(rv, sz); break;
+#endif
case QUIT: free((void*)rv); return 0;
default: error("Bad command"); break;
}
}
- return 0; /* supress warnings */
+ return 0; /* suppress warnings */
+}
+
+/* ---------------------------- *
+ * BSD stat functions *
+ * ---------------------------- */
+#if defined(__OpenBSD__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD__) || defined(__DragonFly__)
+
+static void bsd_loadavg(int idx) {
+ double avgs[3];
+ if (getloadavg(avgs, 3) < 0) {
+ error(strerror(errno));
+ return;
+ }
+ sendi((unsigned int)(avgs[idx] * 256));
+}
+
+#endif
+
+#if defined(__OpenBSD__)
+
+static void bsd_count_procs(void) {
+ int err, nproc;
+ size_t len = sizeof(nproc);
+ int mib[] = { CTL_KERN, KERN_NPROCS };
+
+ err = sysctl(mib, sizeof(mib) / sizeof(mib[0]), &nproc, &len, NULL, 0);
+ if (err) {
+ error(strerror(errno));
+ return;
+ }
+
+ sendi((unsigned int)nproc);
+}
+
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
+
+static void bsd_count_procs(void) {
+ kvm_t *kd;
+ struct kinfo_proc *kp;
+ char err[_POSIX2_LINE_MAX];
+ int cnt = 0;
+
+ if ((kd = kvm_open(NULL, "/dev/null", NULL, O_RDONLY, err)) == NULL) {
+ error(err);
+ return;
+ }
+
+#if defined(KERN_PROC_PROC)
+ if ((kp = kvm_getprocs(kd, KERN_PROC_PROC, 0, &cnt)) == NULL) {
+#else
+ if ((kp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &cnt)) == NULL) {
+#endif
+ error(strerror(errno));
+ return;
+ }
+
+ (void)kvm_close(kd);
+ sendi((unsigned int)cnt);
}
+
+#elif (defined(__APPLE__) && defined(__MACH__))
+
+static void bsd_count_procs(void) {
+ int err;
+ size_t len = 0;
+ int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL };
+
+ err = sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &len, NULL, 0);
+ if (err) {
+ error(strerror(errno));
+ return;
+ }
+
+ sendi((unsigned int)(len / sizeof(struct kinfo_proc)));
+}
+
+#endif
+
/* ---------------------------- *
* Linux stat functions *
* ---------------------------- */
@@ -417,10 +537,75 @@ static void util_measure(unsigned int **result_vec, int *result_sz) {
#endif
/* ---------------------------- *
+ * FreeBSD stat functions *
+ * ---------------------------- */
+
+#if defined(__FreeBSD__)
+
+#define EXIT_WITH(msg) (rich_error(msg, __FILE__, __LINE__))
+#define RICH_BUFLEN (213) /* left in error(char*) */
+
+void rich_error(const char *reason, const char *file, const int line) {
+ char buf[RICH_BUFLEN];
+ snprintf(buf, RICH_BUFLEN, "%s (%s:%i)", reason, file, line);
+ error(buf);
+}
+#undef RICH_BUFLEN
+
+static void util_measure(unsigned int **result_vec, int *result_sz) {
+ int no_of_cpus;
+ size_t size_cpu_times;
+ unsigned long *cpu_times;
+ unsigned int *rv = NULL;
+ int i;
+
+ getsysctl("hw.ncpu", &no_of_cpus, sizeof(int));
+ /* Header constant CPUSTATES = #long values per cpu. */
+ size_cpu_times = sizeof(long) * CPUSTATES * no_of_cpus;
+ cpu_times = malloc(size_cpu_times);
+ if (!cpu_times) {
+ EXIT_WITH("badalloc");
+ }
+ getsysctl("kern.cp_times", cpu_times, size_cpu_times);
+
+ rv = *result_vec;
+ rv[0] = no_of_cpus;
+ rv[1] = CU_BSD_VALUES;
+ ++rv; /* first value is number of cpus */
+ ++rv; /* second value is number of entries */
+
+ for (i = 0; i < no_of_cpus; ++i) {
+ int offset = i * CPUSTATES;
+ rv[ 0] = CU_CPU_ID; rv[ 1] = i;
+ rv[ 2] = CU_USER; rv[ 3] = cpu_times[CP_USER + offset];
+ rv[ 4] = CU_NICE_USER; rv[ 5] = cpu_times[CP_NICE + offset];
+ rv[ 6] = CU_KERNEL; rv[ 7] = cpu_times[CP_SYS + offset];
+ rv[ 8] = CU_IDLE; rv[ 9] = cpu_times[CP_IDLE + offset];
+ rv[10] = CU_HARD_IRQ; rv[11] = cpu_times[CP_INTR + offset];
+ rv += CU_BSD_VALUES*2;
+ }
+
+ *result_sz = 2 + 2*CU_BSD_VALUES * no_of_cpus;
+}
+
+void getsysctl(const char *name, void *ptr, size_t len)
+{
+ size_t gotlen = len;
+ if (sysctlbyname(name, ptr, &gotlen, NULL, 0) != 0) {
+ EXIT_WITH("sysctlbyname failed");
+ }
+ if (gotlen != len) {
+ EXIT_WITH("sysctlbyname: unexpected length");
+ }
+}
+#endif
+
+
+/* ---------------------------- *
* Generic functions *
* ---------------------------- */
-static void send(unsigned int data) { sendv(&data, 1); }
+static void sendi(unsigned int data) { sendv(&data, 1); }
static void sendv(unsigned int data[], int ints) {
static unsigned char *buf = NULL;
@@ -474,8 +659,7 @@ static void error(char* err_msg) {
buffer[i++] = '\n';
/* try to use one write only */
- if(write(FD_ERR, buffer, i));
+ if(write(FD_ERR, buffer, i))
+ ;
exit(-1);
}
-
-
diff --git a/lib/os_mon/doc/src/cpu_sup.xml b/lib/os_mon/doc/src/cpu_sup.xml
index 59da876208..4a8f5bffa0 100644
--- a/lib/os_mon/doc/src/cpu_sup.xml
+++ b/lib/os_mon/doc/src/cpu_sup.xml
@@ -34,7 +34,7 @@
and CPU utilization. It is part of the OS_Mon application, see
<seealso marker="os_mon_app">os_mon(6)</seealso>. Available for Unix,
although CPU utilization values (<c>util/0,1</c>) are only
- available for Solaris and Linux.</p>
+ available for Solaris, Linux and FreeBSD.</p>
<p>The load values are proportional to how long time a runnable
Unix process has to spend in the run queue before it is scheduled.
Accordingly, higher values mean more system load. The returned
diff --git a/lib/os_mon/src/cpu_sup.erl b/lib/os_mon/src/cpu_sup.erl
index 66e7973e7e..d8cfd845bc 100644
--- a/lib/os_mon/src/cpu_sup.erl
+++ b/lib/os_mon/src/cpu_sup.erl
@@ -121,7 +121,7 @@ util(Args) when is_list (Args) ->
util(_) ->
erlang:error(badarg).
--spec util() -> float().
+-spec util() -> float() | {'error', any()}.
util() ->
case util([]) of
@@ -160,7 +160,8 @@ handle_call(?quit, _From, State) ->
handle_call({?util, D, PC}, {Client, _Tag},
#state{os_type = {unix, Flavor}} = State)
when Flavor == sunos;
- Flavor == linux ->
+ Flavor == linux;
+ Flavor == freebsd ->
case measurement_server_call(State#state.server, {?util, D, PC, Client}) of
{error, Reason} ->
{ reply,
@@ -217,8 +218,6 @@ code_change(_OldVsn, State, _Extra) ->
%% internal functions
%%----------------------------------------------------------------------
-get_uint32_measurement(Request, #internal{port = P, os_type = {unix, sunos}}) ->
- port_server_call(P, Request);
get_uint32_measurement(Request, #internal{os_type = {unix, linux}}) ->
{ok,F} = file:open("/proc/loadavg",[read,raw]),
{ok,D} = file:read_line(F),
@@ -231,67 +230,13 @@ get_uint32_measurement(Request, #internal{os_type = {unix, linux}}) ->
?ping -> 4711;
?nprocs -> PTotal
end;
-get_uint32_measurement(Request, #internal{os_type = {unix, freebsd}}) ->
- D = os:cmd("/sbin/sysctl -n vm.loadavg") -- "\n",
- {ok,[Load1,Load5,Load15],_} = io_lib:fread("{ ~f ~f ~f }", D),
- %% We could count the lines from the ps command as well
- case Request of
- ?avg1 -> sunify(Load1);
- ?avg5 -> sunify(Load5);
- ?avg15 -> sunify(Load15);
- ?ping -> 4711;
- ?nprocs ->
- Ps = os:cmd("/bin/ps -ax | /usr/bin/wc -l"),
- {ok, [N], _} = io_lib:fread("~d", Ps),
- N-1
- end;
-get_uint32_measurement(Request, #internal{os_type = {unix, dragonfly}}) ->
- D = os:cmd("/sbin/sysctl -n vm.loadavg") -- "\n",
- {ok,[Load1,Load5,Load15],_} = io_lib:fread("{ ~f ~f ~f }", D),
- %% We could count the lines from the ps command as well
- case Request of
- ?avg1 -> sunify(Load1);
- ?avg5 -> sunify(Load5);
- ?avg15 -> sunify(Load15);
- ?ping -> 4711;
- ?nprocs ->
- Ps = os:cmd("/bin/ps -ax | /usr/bin/wc -l"),
- {ok, [N], _} = io_lib:fread("~d", Ps),
- N-1
- end;
-get_uint32_measurement(Request, #internal{os_type = {unix, openbsd}}) ->
- D = os:cmd("/sbin/sysctl -n vm.loadavg") -- "\n",
- {ok, [L1, L5, L15], _} = io_lib:fread("~f ~f ~f", D),
- case Request of
- ?avg1 -> sunify(L1);
- ?avg5 -> sunify(L5);
- ?avg15 -> sunify(L15);
- ?ping -> 4711;
- ?nprocs ->
- Ps = os:cmd("/bin/ps -ax | /usr/bin/wc -l"),
- {ok, [N], _} = io_lib:fread("~d", Ps),
- N-1
- end;
-get_uint32_measurement(Request, #internal{os_type = {unix, darwin}}) ->
- %% Get the load average using uptime, overriding Locale setting.
- D = os:cmd("LANG=C LC_ALL=C uptime") -- "\n",
- %% Here is a sample uptime string from Mac OS 10.3.8 (C Locale):
- %% "11:17 up 12 days, 20:39, 2 users, load averages: 1.07 0.95 0.66"
- %% The safest way to extract the load averages seems to be grab everything
- %% after the last colon and then do an fread on that.
- Avg = lists:reverse(hd(string:tokens(lists:reverse(D), ":"))),
- {ok,[L1,L5,L15],_} = io_lib:fread("~f ~f ~f", Avg),
-
- case Request of
- ?avg1 -> sunify(L1);
- ?avg5 -> sunify(L5);
- ?avg15 -> sunify(L15);
- ?ping -> 4711;
- ?nprocs ->
- Ps = os:cmd("/bin/ps -ax | /usr/bin/wc -l"),
- {ok, [N], _} = io_lib:fread("~d", Ps),
- N-1
- end;
+get_uint32_measurement(Request, #internal{port = P, os_type = {unix, Sys}}) when
+ Sys == sunos;
+ Sys == dragonfly;
+ Sys == openbsd;
+ Sys == freebsd;
+ Sys == darwin ->
+ port_server_call(P, Request);
get_uint32_measurement(Request, #internal{os_type = {unix, Sys}}) when Sys == irix64;
Sys == irix ->
%% Get the load average using uptime.
@@ -541,14 +486,16 @@ measurement_server_init() ->
process_flag(trap_exit, true),
OS = os:type(),
Server = case OS of
- {unix, Flavor} when Flavor==sunos;
- Flavor==linux ->
- {ok, Pid} = port_server_start_link(),
- Pid;
- {unix, Flavor} when Flavor==darwin;
+ {unix, Flavor} when
+ Flavor==sunos;
+ Flavor==linux;
+ Flavor==darwin;
Flavor==freebsd;
Flavor==dragonfly;
- Flavor==openbsd;
+ Flavor==openbsd ->
+ {ok, Pid} = port_server_start_link(),
+ Pid;
+ {unix, Flavor} when
Flavor==irix64;
Flavor==irix ->
not_used;
diff --git a/lib/os_mon/test/cpu_sup_SUITE.erl b/lib/os_mon/test/cpu_sup_SUITE.erl
index 9f58e043db..7da819379c 100644
--- a/lib/os_mon/test/cpu_sup_SUITE.erl
+++ b/lib/os_mon/test/cpu_sup_SUITE.erl
@@ -64,6 +64,8 @@ all() ->
[load_api, util_api, util_values, port, unavailable];
{unix, linux} ->
[load_api, util_api, util_values, port, unavailable];
+ {unix, freebsd} ->
+ [load_api, util_api, util_values, port, unavailable];
{unix, _OSname} -> [load_api];
_OS -> [unavailable]
end.
diff --git a/lib/os_mon/vsn.mk b/lib/os_mon/vsn.mk
index 833e855e0e..7f2667e40a 100644
--- a/lib/os_mon/vsn.mk
+++ b/lib/os_mon/vsn.mk
@@ -1 +1 @@
-OS_MON_VSN = 2.3.1
+OS_MON_VSN = 2.4
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-29 21:44:45 +0000