File 3041-os_mon-Implement-cpu_sup-util-0-1-for-Open... of Package erlang

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File 3041-os_mon-Implement-cpu_sup-util-0-1-for-OpenBSD.patch of Package erlang (Revision 54461a2357af3de1f765489d2fd0ee14)

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From 259ef22b495fac794246c6cb5fc6b2aa8a65ba52 Mon Sep 17 00:00:00 2001
From: vlkrs <codeberg@schlecht.dev>
Date: Tue, 28 Mar 2023 20:48:11 +0200
Subject: [PATCH 1/2] os_mon: Implement cpu_sup:util/0,1 for OpenBSD

---
 lib/os_mon/c_src/cpu_sup.c        | 88 ++++++++++++++++++++++++++++++-
 lib/os_mon/doc/src/cpu_sup.xml    |  2 +-
 lib/os_mon/src/cpu_sup.erl        |  1 +
 lib/os_mon/test/cpu_sup_SUITE.erl |  2 +
 4 files changed, 90 insertions(+), 3 deletions(-)

diff --git a/lib/os_mon/c_src/cpu_sup.c b/lib/os_mon/c_src/cpu_sup.c
index 415168fc72..8e8e3a32f5 100644
--- a/lib/os_mon/c_src/cpu_sup.c
+++ b/lib/os_mon/c_src/cpu_sup.c
@@ -87,6 +87,11 @@ typedef struct {
 #define CU_BSD_VALUES (6)
 #endif
 
+#if defined(__OpenBSD__)
+#include <sys/types.h>
+#include <sys/sched.h>
+#define CU_OPENBSD_VALUES (6)
+#endif
 
 #define FD_IN		(0)
 #define FD_OUT		(1)
@@ -178,12 +183,17 @@ static int processors_online() {
 void getsysctl(const char *, void *, size_t);
 #endif
 
+#if defined(__OpenBSD__)
+static int getncpu(void);
+static int getncpuonline(void);
+#endif
+
 int main(int argc, char** argv) {
   char cmd;
   int rc;
   int sz;
   unsigned int *rv;
-#if defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) ||defined(__FreeBSD__)
+#if defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD__) || defined(__OpenBSD__)
   unsigned int no_of_cpus = 0;
 #endif
 
@@ -207,6 +217,15 @@ int main(int argc, char** argv) {
     }
 #endif
 
+#if defined(__OpenBSD__)
+    no_of_cpus = getncpu();
+    if ( no_of_cpus == -1 )
+      error("cpu_sup: sysctl error");
+
+    if ( (rv = (unsigned int*)malloc(sizeof(unsigned int)*(2 + 2*no_of_cpus*CU_OPENBSD_VALUES))) == NULL)
+      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) {
@@ -244,7 +263,7 @@ int main(int argc, char** argv) {
     case AVG5:		bsd_loadavg(1);					break;
     case AVG15:		bsd_loadavg(2);					break;
 #endif
-#if defined(__sun__) || defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD__)
+#if defined(__sun__) || defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD__) || defined(__OpenBSD__)
     case UTIL:		util_measure(&rv,&sz); sendv(rv, sz);		break;
 #endif
     case QUIT:		free((void*)rv); return 0;
@@ -712,6 +731,71 @@ static void util_measure(unsigned int **result_vec, int *result_sz) {
 }
 #endif
 
+/* ---------------------------- *
+ *     OpenBSD stat functions 	*
+ * ---------------------------- */
+
+#if defined(__OpenBSD__)
+static int getncpu(void) {
+    const int mib[] = { CTL_HW, HW_NCPU };
+    int numcpu;
+    size_t size = sizeof(numcpu);
+
+    if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), &numcpu, &size, NULL, 0) == -1)
+        error("cpu_sup: sysctl error");
+
+    return(numcpu);
+}
+
+static int getncpuonline(void) {
+    const int mib[] = { CTL_HW, HW_NCPUONLINE };
+    int numcpu;
+    size_t size = sizeof(numcpu);
+
+    if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), &numcpu, &size, NULL, 0) == -1)
+        error("cpu_sup: sysctl error");
+
+    return(numcpu);
+}
+
+static void util_measure(unsigned int **result_vec, int *result_sz) {
+    static int mib[] = { CTL_KERN, KERN_CPTIME2, 0 };
+    size_t size_cpu_times;
+    int64_t *cpu_times;
+    unsigned int *rv = NULL;
+    int i;
+    int ncpuonline = getncpuonline();
+
+    size_cpu_times = sizeof(int64_t) * CPUSTATES;
+    cpu_times = malloc(size_cpu_times);
+    if (!cpu_times)
+        error("cpu_sup: malloc error");
+
+    rv = *result_vec;
+    rv[0] = ncpuonline;
+    rv[1] = CU_OPENBSD_VALUES;
+    ++rv; /* first value is number of cpus */
+    ++rv; /* second value is number of entries */
+
+    for (i = 0; i < ncpuonline; ++i) {
+        mib[2] = i;
+        if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), cpu_times, &size_cpu_times, NULL, 0) == -1)
+            error("cpu_sup: sysctl error");
+
+        rv[ 0] = CU_CPU_ID;    rv[ 1] = i;
+        rv[ 2] = CU_USER;      rv[ 3] = (unsigned int)cpu_times[CP_USER];
+        rv[ 4] = CU_NICE_USER; rv[ 5] = (unsigned int)cpu_times[CP_NICE];
+        rv[ 6] = CU_KERNEL;    rv[ 7] = (unsigned int)cpu_times[CP_SYS];
+        rv[ 8] = CU_IDLE;      rv[ 9] = (unsigned int)cpu_times[CP_IDLE];
+        rv[10] = CU_HARD_IRQ;  rv[11] = (unsigned int)cpu_times[CP_INTR];
+        rv += CU_OPENBSD_VALUES*2;
+    }
+    free((void*) cpu_times);
+
+    *result_sz = 2 + 2*CU_OPENBSD_VALUES * ncpuonline;
+}
+#endif
+
 
 /* ---------------------------- *
  *	 Generic functions 	*
diff --git a/lib/os_mon/doc/src/cpu_sup.xml b/lib/os_mon/doc/src/cpu_sup.xml
index e9dd930cf1..e79b3038b3 100644
--- a/lib/os_mon/doc/src/cpu_sup.xml
+++ b/lib/os_mon/doc/src/cpu_sup.xml
@@ -35,7 +35,7 @@
       and CPU utilization. It is part of the OS_Mon application, see
       <seeapp marker="os_mon_app">os_mon(6)</seeapp>. Available for Unix,
       although CPU utilization values (<c>util/0,1</c>) are only
-      available for Solaris, Linux and FreeBSD.</p>
+      available for Solaris, Linux, FreeBSD and OpenBSD.</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 be917021e7..522ffe5830 100644
--- a/lib/os_mon/src/cpu_sup.erl
+++ b/lib/os_mon/src/cpu_sup.erl
@@ -163,6 +163,7 @@ handle_call({?util, D, PC}, {Client, _Tag},
 	when Flavor == sunos;
 	     Flavor == linux;
 	     Flavor == freebsd;
+	     Flavor == openbsd;
 	     Flavor == darwin ->
     case measurement_server_call(State#state.server, {?util, D, PC, Client}) of
 	{error, Reason} -> 
diff --git a/lib/os_mon/test/cpu_sup_SUITE.erl b/lib/os_mon/test/cpu_sup_SUITE.erl
index e719963ea9..f3494da860 100644
--- a/lib/os_mon/test/cpu_sup_SUITE.erl
+++ b/lib/os_mon/test/cpu_sup_SUITE.erl
@@ -63,6 +63,8 @@ all() ->
             [load_api, util_api, util_values, port, unavailable];
         {unix, freebsd} ->
             [load_api, util_api, util_values, port, unavailable];
+        {unix, openbsd} ->
+            [load_api, util_api, util_values, port, unavailable];
         {unix, darwin} ->
             [load_api, util_api, util_values, port, unavailable];
         {unix, netbsd} -> [unavailable];
-- 
2.35.3

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File 3041-os_mon-Implement-cpu_sup-util-0-1-for-OpenBSD.patch of Package erlang (Revision 54461a2357af3de1f765489d2fd0ee14)

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