build-sys: Relocate library to library/

All the dependent programs needed to have their includes moved too Signed-off-by: Craig Small <csmall@dropbear.xyz>
2022-08-29 19:02:44 +10:00
parent 406b6d311c
commit 3d0871728b
55 changed files with 137 additions and 137 deletions
--- a/library/sysinfo.c
+++ b/library/sysinfo.c
@@ -0,0 +1,165 @@
+/*
+ * File for parsing top-level /proc entities.
+ * Copyright (C) 1992-1998 by Michael K. Johnson, johnsonm@redhat.com
+ * Copyright 1998-2003 Albert Cahalan
+ * June 2003, Fabian Frederick, slab info
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <locale.h>
+#include <errno.h>
+
+#include <unistd.h>
+#include <fcntl.h>
+#ifdef __CYGWIN__
+#include <sys/param.h>
+#endif
+#include "misc.h"
+#include "procps-private.h"
+
+
+#define LOADAVG_FILE "/proc/loadavg"
+
+/* evals 'x' twice */
+#define SET_IF_DESIRED(x,y) do{  if(x) *(x) = (y); }while(0)
+
+/* return minimum of two values */
+#ifndef __CYGWIN__
+#define MIN(x,y) ((x) < (y) ? (x) : (y))
+#endif
+
+/*
+ * procps_hertz_get:
+ *
+ *
+ * Some values in /proc are expressed in units of 1/HZ seconds, where HZ
+ * is the kernel clock tick rate. One of these units is called a jiffy.
+ * The HZ value used in the kernel may vary according to hacker desire.
+ *
+ * On some architectures, the kernel provides an ELF note to indicate
+ * HZ.
+ *
+ * Returns:
+ *  The discovered or assumed hertz value
+ */
+PROCPS_EXPORT long procps_hertz_get(void)
+{
+    long hz;
+
+#ifdef _SC_CLK_TCK
+    if ((hz = sysconf(_SC_CLK_TCK)) > 0)
+        return hz;
+#endif
+#ifdef HZ
+    return(HZ);
+#endif
+    /* Last resort, assume 100 */
+    return 100;
+}
+
+/*
+ * procps_loadavg:
+ * @av1: location to store 1 minute load average
+ * @av5: location to store 5 minute load average
+ * @av15: location to store 15 minute load average
+ *
+ * Find the 1,5 and 15 minute load average of the system
+ *
+ * Returns: 0 on success <0 on error
+ */
+PROCPS_EXPORT int procps_loadavg(
+        double *restrict av1,
+        double *restrict av5,
+        double *restrict av15)
+{
+    double avg_1=0, avg_5=0, avg_15=0;
+    locale_t tmplocale;
+    int retval=0;
+    FILE *fp;
+
+    if ((fp = fopen(LOADAVG_FILE, "r")) == NULL)
+        return -errno;
+
+    tmplocale = newlocale(LC_NUMERIC_MASK, "C", (locale_t)0);
+    uselocale(tmplocale);
+    if (fscanf(fp, "%lf %lf %lf", &avg_1, &avg_5, &avg_15) < 3)
+        retval = -ERANGE;
+
+    fclose(fp);
+    uselocale(LC_GLOBAL_LOCALE);
+    freelocale(tmplocale);
+    SET_IF_DESIRED(av1,  avg_1);
+    SET_IF_DESIRED(av5,  avg_5);
+    SET_IF_DESIRED(av15, avg_15);
+    return retval;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+
+#define PROCFS_PID_MAX "/proc/sys/kernel/pid_max"
+#define DEFAULT_PID_LENGTH 5
+
+/*
+ * procps_pid_length
+ *
+ * Return the length of the maximum possible pid.
+ *
+ * Returns either the strlen of PROCFS_PID_MAX or the
+ * best-guess DEFAULT_PID_LENGTH
+ */
+PROCPS_EXPORT unsigned int procps_pid_length(void)
+{
+    FILE *fp;
+    char pidbuf[24];
+    static __thread int pid_length=0;
+
+    if (pid_length)
+        return pid_length;
+
+    pid_length = DEFAULT_PID_LENGTH;
+    if ((fp = fopen(PROCFS_PID_MAX, "r")) != NULL) {
+        if (fgets(pidbuf, sizeof(pidbuf), fp) != NULL) {
+            pid_length = strlen(pidbuf);
+            if (pidbuf[pid_length-1] == '\n')
+                --pid_length;
+        }
+        fclose(fp);
+    }
+    return pid_length;
+}
+
+///////////////////////////////////////////////////////////////////////////
+
+/* procps_cpu_count:
+ *
+ * Returns the number of CPUs that are currently online.
+ *
+ */
+long procps_cpu_count(void)
+{
+    long cpus;
+
+    cpus = sysconf(_SC_NPROCESSORS_ONLN);
+    if (cpus < 1)
+        return 1;
+    return cpus;
+}
+