diff options
Diffstat (limited to 'lib/getloadavg.c')
| -rw-r--r-- | lib/getloadavg.c | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/lib/getloadavg.c b/lib/getloadavg.c index 4e7eb0d2338..08c14efcfce 100644 --- a/lib/getloadavg.c +++ b/lib/getloadavg.c @@ -1,6 +1,6 @@ /* Get the system load averages. - Copyright (C) 1985-1989, 1991-1995, 1997, 1999-2000, 2003-2018 Free Software + Copyright (C) 1985-1989, 1991-1995, 1997, 1999-2000, 2003-2019 Free Software Foundation, Inc. NOTE: The canonical source of this file is maintained with gnulib. @@ -47,8 +47,8 @@ N_NAME_POINTER The nlist n_name element is a pointer, not an array. HAVE_STRUCT_NLIST_N_UN_N_NAME 'n_un.n_name' is member of 'struct nlist'. - LINUX_LDAV_FILE [__linux__, __CYGWIN__]: File containing - load averages. + LINUX_LDAV_FILE [__linux__, __ANDROID__, __CYGWIN__]: File + containing load averages. Specific system predefines this file uses, aside from setting default values if not emacs: @@ -65,7 +65,7 @@ UMAX4_3 VMS _WIN32 Native Windows (possibly also defined on Cygwin) - __linux__ Linux: assumes /proc file system mounted. + __linux__, __ANDROID__ Linux: assumes /proc file system mounted. Support from Michael K. Johnson. __CYGWIN__ Cygwin emulates linux /proc/loadavg. __NetBSD__ NetBSD: assumes /kern file system mounted. @@ -263,7 +263,7 @@ # ifdef LOAD_AVE_TYPE # ifndef __VMS -# ifndef __linux__ +# if !(defined __linux__ || defined __ANDROID__) # ifndef NLIST_STRUCT # include <a.out.h> # else /* NLIST_STRUCT */ @@ -286,7 +286,7 @@ # ifndef LDAV_SYMBOL # define LDAV_SYMBOL "_avenrun" # endif /* LDAV_SYMBOL */ -# endif /* __linux__ */ +# endif /* __linux__ || __ANDROID__ */ # else /* __VMS */ @@ -359,7 +359,8 @@ # include <sys/dg_sys_info.h> # endif -# if (defined __linux__ || defined __CYGWIN__ || defined SUNOS_5 \ +# if (defined __linux__ || defined __ANDROID__ \ + || defined __CYGWIN__ || defined SUNOS_5 \ || (defined LOAD_AVE_TYPE && ! defined __VMS)) # include <fcntl.h> # endif @@ -388,7 +389,7 @@ static bool getloadavg_initialized; /* Offset in kmem to seek to read load average, or 0 means invalid. */ static long offset; -# if ! defined __VMS && ! defined sgi && ! defined __linux__ +# if ! defined __VMS && ! defined sgi && ! (defined __linux__ || defined __ANDROID__) static struct nlist name_list[2]; # endif @@ -423,17 +424,17 @@ getloadavg (double loadavg[], int nelem) int saved_errno; kc = kstat_open (); - if (kc == 0) + if (kc == NULL) return -1; ksp = kstat_lookup (kc, "unix", 0, "system_misc"); - if (ksp == 0) + if (ksp == NULL) return -1; if (kstat_read (kc, ksp, 0) == -1) return -1; kn = kstat_data_lookup (ksp, "avenrun_1min"); - if (kn == 0) + if (kn == NULL) { /* Return -1 if no load average information is available. */ nelem = 0; @@ -446,14 +447,14 @@ getloadavg (double loadavg[], int nelem) if (nelem >= 2) { kn = kstat_data_lookup (ksp, "avenrun_5min"); - if (kn != 0) + if (kn != NULL) { loadavg[elem++] = (double) kn->value.ul / FSCALE; if (nelem >= 3) { kn = kstat_data_lookup (ksp, "avenrun_15min"); - if (kn != 0) + if (kn != NULL) loadavg[elem++] = (double) kn->value.ul / FSCALE; } } @@ -498,8 +499,8 @@ getloadavg (double loadavg[], int nelem) } # endif -# if !defined (LDAV_DONE) && (defined (__linux__) || defined (__CYGWIN__)) - /* Linux without glibc, Cygwin */ +# if !defined (LDAV_DONE) && (defined __linux__ || defined __ANDROID__ || defined __CYGWIN__) + /* Linux without glibc, Android, Cygwin */ # define LDAV_DONE # undef LOAD_AVE_TYPE @@ -554,7 +555,7 @@ getloadavg (double loadavg[], int nelem) return elem; -# endif /* __linux__ || __CYGWIN__ */ +# endif /* __linux__ || __ANDROID__ || __CYGWIN__ */ # if !defined (LDAV_DONE) && defined (__NetBSD__) /* NetBSD < 0.9 */ # define LDAV_DONE @@ -894,7 +895,7 @@ getloadavg (double loadavg[], int nelem) /* We pass 0 for the kernel, corefile, and swapfile names to use the currently running kernel. */ kd = kvm_open (0, 0, 0, O_RDONLY, 0); - if (kd != 0) + if (kd != NULL) { /* nlist the currently running kernel. */ kvm_nlist (kd, name_list); |