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/* Copyright libuv project contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "uv.h"
#include "internal.h"
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/time.h>
#include <unistd.h>
#include <fcntl.h>
#include <utmp.h>
#include <libgen.h>
#include <sys/protosw.h>
#include <procinfo.h>
#include <sys/proc.h>
#include <sys/procfs.h>
#include <ctype.h>
#include <sys/mntctl.h>
#include <sys/vmount.h>
#include <limits.h>
#include <strings.h>
#include <sys/vnode.h>
#include <as400_protos.h>
typedef struct {
int bytes_available;
int bytes_returned;
char current_date_and_time[8];
char system_name[8];
char elapsed_time[6];
char restricted_state_flag;
char reserved;
int percent_processing_unit_used;
int jobs_in_system;
int percent_permanent_addresses;
int percent_temporary_addresses;
int system_asp;
int percent_system_asp_used;
int total_auxiliary_storage;
int current_unprotected_storage_used;
int maximum_unprotected_storage_used;
int percent_db_capability;
int main_storage_size;
int number_of_partitions;
int partition_identifier;
int reserved1;
int current_processing_capacity;
char processor_sharing_attribute;
char reserved2[3];
int number_of_processors;
int active_jobs_in_system;
int active_threads_in_system;
int maximum_jobs_in_system;
int percent_temporary_256mb_segments_used;
int percent_temporary_4gb_segments_used;
int percent_permanent_256mb_segments_used;
int percent_permanent_4gb_segments_used;
int percent_current_interactive_performance;
int percent_uncapped_cpu_capacity_used;
int percent_shared_processor_pool_used;
long main_storage_size_long;
} SSTS0200;
static int get_ibmi_system_status(SSTS0200* rcvr) {
/* rcvrlen is input parameter 2 to QWCRSSTS */
unsigned int rcvrlen = sizeof(*rcvr);
/* format is input parameter 3 to QWCRSSTS ("SSTS0200" in EBCDIC) */
unsigned char format[] = {0xE2, 0xE2, 0xE3, 0xE2, 0xF0, 0xF2, 0xF0, 0xF0};
/* reset_status is input parameter 4 to QWCRSSTS ("*NO " in EBCDIC) */
unsigned char reset_status[] = {
0x5C, 0xD5, 0xD6, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40
};
/* errcode is input parameter 5 to QWCRSSTS */
struct _errcode {
int bytes_provided;
int bytes_available;
char msgid[7];
} errcode;
/* qwcrssts_pointer is the 16-byte tagged system pointer to QWCRSSTS */
ILEpointer __attribute__((aligned(16))) qwcrssts_pointer;
/* qwcrssts_argv is the array of argument pointers to QWCRSSTS */
void* qwcrssts_argv[6];
/* Set the IBM i pointer to the QSYS/QWCRSSTS *PGM object */
int rc = _RSLOBJ2(&qwcrssts_pointer, RSLOBJ_TS_PGM, "QWCRSSTS", "QSYS");
if (rc != 0)
return rc;
/* initialize the QWCRSSTS returned info structure */
memset(rcvr, 0, sizeof(*rcvr));
/* initialize the QWCRSSTS error code structure */
memset(&errcode, 0, sizeof(errcode));
errcode.bytes_provided = sizeof(errcode);
/* initialize the array of argument pointers for the QWCRSSTS API */
qwcrssts_argv[0] = rcvr;
qwcrssts_argv[1] = &rcvrlen;
qwcrssts_argv[2] = &format;
qwcrssts_argv[3] = &reset_status;
qwcrssts_argv[4] = &errcode;
qwcrssts_argv[5] = NULL;
/* Call the IBM i QWCRSSTS API from PASE */
rc = _PGMCALL(&qwcrssts_pointer, (void**)&qwcrssts_argv, 0);
return rc;
}
uint64_t uv_get_free_memory(void) {
SSTS0200 rcvr;
if (get_ibmi_system_status(&rcvr))
return 0;
/* The amount of main storage, in kilobytes, in the system. */
uint64_t main_storage_size = rcvr.main_storage_size;
/* The current amount of storage in use for temporary objects.
* in millions (M) of bytes.
*/
uint64_t current_unprotected_storage_used =
rcvr.current_unprotected_storage_used * 1024ULL;
uint64_t free_storage_size =
(main_storage_size - current_unprotected_storage_used) * 1024ULL;
return free_storage_size < 0 ? 0 : free_storage_size;
}
uint64_t uv_get_total_memory(void) {
SSTS0200 rcvr;
if (get_ibmi_system_status(&rcvr))
return 0;
return (uint64_t)rcvr.main_storage_size * 1024ULL;
}
uint64_t uv_get_constrained_memory(void) {
return 0; /* Memory constraints are unknown. */
}
void uv_loadavg(double avg[3]) {
SSTS0200 rcvr;
if (get_ibmi_system_status(&rcvr)) {
avg[0] = avg[1] = avg[2] = 0;
return;
}
/* The average (in tenths) of the elapsed time during which the processing
* units were in use. For example, a value of 411 in binary would be 41.1%.
* This percentage could be greater than 100% for an uncapped partition.
*/
double processing_unit_used_percent =
rcvr.percent_processing_unit_used / 1000.0;
avg[0] = avg[1] = avg[2] = processing_unit_used_percent;
}
int uv_resident_set_memory(size_t* rss) {
*rss = 0;
return 0;
}
int uv_uptime(double* uptime) {
return UV_ENOSYS;
}
int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
unsigned int numcpus, idx = 0;
uv_cpu_info_t* cpu_info;
*cpu_infos = NULL;
*count = 0;
numcpus = sysconf(_SC_NPROCESSORS_ONLN);
*cpu_infos = uv__malloc(numcpus * sizeof(uv_cpu_info_t));
if (!*cpu_infos) {
return UV_ENOMEM;
}
cpu_info = *cpu_infos;
for (idx = 0; idx < numcpus; idx++) {
cpu_info->speed = 0;
cpu_info->model = uv__strdup("unknown");
cpu_info->cpu_times.user = 0;
cpu_info->cpu_times.sys = 0;
cpu_info->cpu_times.idle = 0;
cpu_info->cpu_times.irq = 0;
cpu_info->cpu_times.nice = 0;
cpu_info++;
}
*count = numcpus;
return 0;
}