mirror of
https://dev.iopsys.eu/system/sysmngr.git
synced 2025-12-10 08:14:38 +01:00
Update the handling of process Instances
This commit is contained in:
Amin Ben Romdhane
IOPSYS Dev
parent
f5dcef5463
commit
b7a44f16b3
5 changed files with 213 additions and 122 deletions
273
src/processes.c
273
src/processes.c
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@ -10,15 +10,9 @@
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*/
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#include "utils.h"
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#include "processes.h"
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extern struct list_head global_memhead;
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LIST_HEAD(process_list);
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static int process_count = 0;
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#define PROCPS_BUFSIZE 1024
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struct process_entry {
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typedef struct process_entry {
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struct list_head list;
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char command[256];
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@ -27,7 +21,7 @@ struct process_entry {
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char size[8];
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char priority[8];
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char cputime[8];
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};
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} process_entry;
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typedef struct jiffy_counts_t {
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unsigned long long usr, nic, sys, idle;
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@ -36,6 +30,16 @@ typedef struct jiffy_counts_t {
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unsigned long long busy;
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} jiffy_counts_t;
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typedef struct process_ctx {
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struct ubus_context *ubus_ctx;
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struct uloop_timeout instance_timer;
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struct list_head list;
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int refresh_interval;
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int process_num;
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} process_ctx;
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static process_ctx g_process_ctx = {0};
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/*************************************************************
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* COMMON FUNCTIONS
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**************************************************************/
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@ -90,28 +94,6 @@ static unsigned int get_cpu_usage(void)
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return get_cpu_load(&prev_jif, &cur_jif);
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}
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static bool is_update_process_allowed(void)
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{
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char *tr069_status = NULL;
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if (dmubus_object_method_exists("tr069")) {
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struct uci_section *s = NULL, *stmp = NULL;
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uci_path_foreach_sections_safe(varstate, "icwmp", "sess_status", stmp, s) {
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dmuci_get_value_by_section_string(s, "current_status", &tr069_status);
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}
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}
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if (tr069_status == NULL)
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goto end;
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if (strcmp(tr069_status, "running") == 0) {
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return false;
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}
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end:
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return true;
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}
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static char *get_proc_state(char state)
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{
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switch(state) {
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@ -132,48 +114,20 @@ static char *get_proc_state(char state)
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return "Idle";
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}
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static struct process_entry *check_entry_exists(const char *pid)
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{
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struct process_entry *entry = NULL;
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list_for_each_entry(entry, &process_list, list) {
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if (DM_STRCMP(entry->pid, pid) == 0)
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return entry;
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}
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return NULL;
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}
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static void check_killed_process(void)
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{
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struct process_entry *entry = NULL;
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struct process_entry *entry_tmp = NULL;
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char fstat[32];
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list_for_each_entry_safe(entry, entry_tmp, &process_list, list) {
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snprintf(fstat, sizeof(fstat), "/proc/%s/stat", entry->pid);
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if (file_exists(fstat))
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continue;
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list_del(&entry->list);
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dmfree(entry);
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}
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}
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static void procps_get_cmdline(char *buf, int bufsz, const char *pid, const char *comm)
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{
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int sz;
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char filename[270];
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char filename[270] = {0};
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snprintf(filename, sizeof(filename), "/proc/%s/cmdline", pid);
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sz = dm_file_to_buf(filename, buf, bufsz);
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int sz = dm_file_to_buf(filename, buf, bufsz);
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if (sz > 0) {
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const char *base;
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int comm_len;
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while (--sz >= 0 && buf[sz] == '\0')
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continue;
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/* Prevent basename("process foo/bar") = "bar" */
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strchrnul(buf, ' ')[0] = '\0';
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base = basename(buf); /* before we replace argv0's NUL with space */
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@ -182,6 +136,7 @@ static void procps_get_cmdline(char *buf, int bufsz, const char *pid, const char
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buf[sz] = ' ';
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sz--;
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}
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if (base[0] == '-') /* "-sh" (login shell)? */
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base++;
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@ -190,6 +145,7 @@ static void procps_get_cmdline(char *buf, int bufsz, const char *pid, const char
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*/
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if (!comm)
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return;
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comm_len = strlen(comm);
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/* Why compare up to comm_len?
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* Well, some processes rewrite argv, and use _spaces_ there
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@ -212,39 +168,54 @@ static void procps_get_cmdline(char *buf, int bufsz, const char *pid, const char
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}
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}
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static void init_processes(void)
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static void broadcast_add_del_event(int diff)
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{
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DIR *dir = NULL;
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struct dirent *entry = NULL;
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struct stat stats = {0};
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char buf[PROCPS_BUFSIZE];
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char fstat[288];
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char command[256];
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char comm[32];
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char bsize[32];
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char cputime[32];
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char priori[32];
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char *comm1 = NULL;
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char *comm2 = NULL;
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char state;
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unsigned long stime;
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unsigned long utime;
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unsigned long vsize;
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int priority, n;
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int curr_process_idx = 0;
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struct blob_buf bb = {0};
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char method_name[64] = {0};
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if (!is_update_process_allowed())
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// On the first run, add and delete events are managed by the instance refresh mechanism defined in bbfdm
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if (g_process_ctx.process_num == 0)
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return;
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check_killed_process();
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memset(&bb, 0, sizeof(struct blob_buf));
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blob_buf_init(&bb, 0);
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void *a = blobmsg_open_array(&bb, "instances");
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for (int i = 0; i < abs(diff); i++) {
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char obj_path[256] = {0};
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snprintf(obj_path, sizeof(obj_path), "Device.DeviceInfo.ProcessStatus.Process.%d", (diff > 0) ? g_process_ctx.process_num + i + 1 : g_process_ctx.process_num - i);
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blobmsg_add_string(&bb, NULL, obj_path);
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BBF_DEBUG("#%s:: %s #", (diff > 0) ? "Add" : "Del", obj_path);
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}
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blobmsg_close_array(&bb, a);
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snprintf(method_name, sizeof(method_name), "%s.%s", "bbfdm", (diff > 0) ? "AddObj" : "DelObj");
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ubus_send_event(g_process_ctx.ubus_ctx, method_name, bb.head);
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blob_buf_free(&bb);
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}
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static void init_process_list(void)
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{
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struct dirent *entry = NULL;
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DIR *dir = NULL;
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unsigned int cur_process_num = 0;
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dir = opendir("/proc");
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if (dir == NULL)
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return;
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BBF_INFO("Init process list");
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while ((entry = readdir(dir)) != NULL) {
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struct process_entry *pentry = NULL;
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struct process_entry *pentry_exits = NULL;
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struct stat stats = {0};
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char buf[1024], fstat[288], command[256], comm[32];
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char bsize[32], cputime[32], priori[32], state;
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unsigned long stime, utime, vsize;
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int priority, n;
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int digit = entry->d_name[0] - '0';
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if (digit < 0 || digit > 9)
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@ -254,16 +225,16 @@ static void init_processes(void)
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if (stat(fstat, &stats))
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continue;
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n = dm_file_to_buf(fstat, buf, PROCPS_BUFSIZE);
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n = dm_file_to_buf(fstat, buf, sizeof(buf));
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if (n < 0)
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continue;
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comm2 = strrchr(buf, ')'); /* split into "PID (cmd" and "<rest>" */
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char *comm2 = strrchr(buf, ')'); /* split into "PID (cmd" and "<rest>" */
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if (!comm2) /* sanity check */
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continue;
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comm2[0] = '\0';
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comm1 = strchr(buf, '(');
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char *comm1 = strchr(buf, '(');
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if (!comm1) /* sanity check */
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continue;
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@ -290,23 +261,19 @@ static void init_processes(void)
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continue;
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procps_get_cmdline(command, sizeof(command), entry->d_name, comm);
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curr_process_idx++;
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snprintf(cputime, sizeof(cputime), "%lu", ((stime / sysconf(_SC_CLK_TCK)) + (utime / sysconf(_SC_CLK_TCK))) * 1000);
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snprintf(bsize, sizeof(bsize), "%lu", vsize >> 10);
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snprintf(priori, sizeof(priori), "%u", (unsigned)round((priority + 100) * 99 / 139));
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if (process_count == 0 || !(pentry_exits = check_entry_exists(entry->d_name))) {
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pentry = dm_dynamic_calloc(&global_memhead, 1, sizeof(struct process_entry));
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if (!pentry)
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process_entry *pentry = (process_entry *)calloc(1, sizeof(process_entry));
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if (!pentry) {
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BBF_ERR("failed to allocate memory for process entry");
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return;
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list_add_tail(&pentry->list, &process_list);
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}
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if (pentry_exits)
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pentry = pentry_exits;
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list_add_tail(&pentry->list, &g_process_ctx.list);
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cur_process_num++;
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DM_STRNCPY(pentry->pid, entry->d_name, sizeof(pentry->pid));
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DM_STRNCPY(pentry->command, command, sizeof(pentry->command));
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@ -317,11 +284,90 @@ static void init_processes(void)
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}
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closedir(dir);
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process_count = curr_process_idx;
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int diff = cur_process_num - g_process_ctx.process_num;
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if (diff) {
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broadcast_add_del_event(diff);
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g_process_ctx.process_num = cur_process_num;
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}
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}
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static void free_process_list(void)
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{
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process_entry *entry = NULL, *tmp = NULL;
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BBF_INFO("Free process list");
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list_for_each_entry_safe(entry, tmp, &g_process_ctx.list, list) {
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list_del(&entry->list);
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FREE(entry);
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}
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}
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static int get_instance_refresh_interval(void)
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{
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char buf[8] = {0};
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sysmngr_uci_get("sysmngr", "process", "instance_refresh_interval", "0", buf, sizeof(buf));
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return (int)strtol(buf, NULL, 10);
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}
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static void run_refresh_process_list(void)
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{
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free_process_list();
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init_process_list();
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if (g_process_ctx.refresh_interval > 0) {
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BBF_INFO("Scheduling process list update after %d sec...", g_process_ctx.refresh_interval);
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uloop_timeout_set(&g_process_ctx.instance_timer, g_process_ctx.refresh_interval * 1000);
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}
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}
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static void ubus_call_complete_cb(struct ubus_request *req, int ret)
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{
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BBF_DEBUG("'tr069' ubus callback completed");
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run_refresh_process_list();
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FREE(req);
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}
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static void process_refresh_instance_timer(struct uloop_timeout *timeout)
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{
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struct blob_buf bb = {0};
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memset(&bb, 0, sizeof(struct blob_buf));
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blob_buf_init(&bb, 0);
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int res = sysmngr_ubus_invoke_async(g_process_ctx.ubus_ctx, "tr069", "status", bb.head, NULL, ubus_call_complete_cb);
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blob_buf_free(&bb);
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if (res) {
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BBF_DEBUG("Update process list: 'tr069' ubus object not found");
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run_refresh_process_list();
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} else {
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BBF_DEBUG("Process list will be updated after 'tr069' ubus session completes");
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}
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}
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/*************************************************************
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* EXTERNAL APIS
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**************************************************************/
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void sysmngr_process_init(struct ubus_context *ubus_ctx)
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{
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g_process_ctx.ubus_ctx = ubus_ctx;
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g_process_ctx.refresh_interval = get_instance_refresh_interval();
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g_process_ctx.instance_timer.cb = process_refresh_instance_timer;
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INIT_LIST_HEAD(&g_process_ctx.list);
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g_process_ctx.process_num = 0;
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run_refresh_process_list();
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}
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void sysmngr_process_clean(struct ubus_context *ubus_ctx)
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{
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free_process_list();
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uloop_timeout_cancel(&g_process_ctx.instance_timer);
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}
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/*************************************************************
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* ENTRY METHOD
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@ -333,8 +379,12 @@ static int browseProcessEntriesInst(struct dmctx *dmctx, DMNODE *parent_node, vo
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char *inst = NULL;
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int id = 0;
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init_processes();
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list_for_each_entry(entry, &process_list, list) {
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if (g_process_ctx.refresh_interval <= 0) {
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BBF_INFO("Scheduling process list update after 2 sec...");
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uloop_timeout_set(&g_process_ctx.instance_timer, 2 * 1000);
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}
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list_for_each_entry(entry, &g_process_ctx.list, list) {
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curr_data.additional_data = entry;
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@ -343,13 +393,10 @@ static int browseProcessEntriesInst(struct dmctx *dmctx, DMNODE *parent_node, vo
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if (DM_LINK_INST_OBJ(dmctx, parent_node, &curr_data, inst) == DM_STOP)
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break;
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}
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return 0;
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}
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/*************************************************************
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* GET & SET PARAM
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**************************************************************/
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@ -402,19 +449,6 @@ static int get_process_state(char* refparam, struct dmctx *ctx, void *data, char
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return 0;
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}
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/**********************************************************************************************************************************
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* OBJ & LEAF DEFINITION
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***********************************************************************************************************************************/
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@ -443,6 +477,3 @@ DMLEAF tDeviceInfoProcessStatusParams[] = {
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{"ProcessNumberOfEntries", &DMREAD, DMT_UNINT, get_process_number_of_entries, NULL, BBFDM_BOTH},
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{0}
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};
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@ -15,4 +15,7 @@
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extern DMOBJ tDeviceInfoProcessStatusObj[];
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extern DMLEAF tDeviceInfoProcessStatusParams[];
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void sysmngr_process_init(struct ubus_context *ubus_ctx);
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void sysmngr_process_clean(struct ubus_context *ubus_ctx);
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#endif //__PROCESSES_H
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@ -20,6 +20,10 @@
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#include "reboots.h"
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#endif
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#ifdef SYSMNGR_REBOOTS
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#include "processes.h"
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#endif
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extern DM_MAP_OBJ tDynamicObj[];
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static void usage(char *prog)
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@ -64,6 +68,10 @@ int main(int argc, char **argv)
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sysmngr_reboots_init();
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#endif
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#ifdef SYSMNGR_PROCESS_STATUS
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sysmngr_process_init(&bbfdm_ctx.ubus_ctx);
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#endif
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if (bbfdm_ubus_regiter_init(&bbfdm_ctx))
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goto out;
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@ -71,6 +79,11 @@ int main(int argc, char **argv)
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out:
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bbfdm_ubus_regiter_free(&bbfdm_ctx);
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#ifdef SYSMNGR_PROCESS_STATUS
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sysmngr_process_clean(&bbfdm_ctx.ubus_ctx);
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#endif
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closelog();
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return 0;
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38
src/utils.c
38
src/utils.c
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@ -229,6 +229,44 @@ int sysmngr_uci_delete(struct uci_context *uci_ctx, const char *package, const c
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return 0;
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}
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int sysmngr_ubus_invoke_async(struct ubus_context *ubus_ctx, const char *obj, const char *method, struct blob_attr *msg,
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sysmngr_ubus_cb data_callback, sysmngr_ubus_async_cb complete_callback)
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{
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struct ubus_request *req = NULL;
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uint32_t id;
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|
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if (ubus_ctx == NULL) {
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BBF_ERR("Failed to connect with ubus, error: '%d'", errno);
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return -1;
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}
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if (ubus_lookup_id(ubus_ctx, obj, &id)) {
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BBF_ERR("Failed to lookup ubus object: '%s'", obj);
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return -1;
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}
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||||
|
||||
req = (struct ubus_request *)calloc(1, sizeof(struct ubus_request));
|
||||
if (req == NULL) {
|
||||
BBF_ERR("failed to allocate memory for ubus request");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (ubus_invoke_async(ubus_ctx, id, method, msg, req)) {
|
||||
BBF_ERR("ubus async call failed for object: '%s', method: '%s'", obj, method);
|
||||
FREE(req);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (data_callback)
|
||||
req->data_cb = data_callback;
|
||||
|
||||
if (complete_callback)
|
||||
req->complete_cb = complete_callback;
|
||||
|
||||
ubus_complete_request_async(ubus_ctx, req);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sysmngr_get_uptime(void)
|
||||
{
|
||||
// cppcheck-suppress cert-MSC24-C
|
||||
|
|
|
|||
|
|
@ -25,6 +25,12 @@ int sysmngr_uci_get(const char *package, const char *section, const char *option
|
|||
int sysmngr_uci_set(const char *package, const char *section, const char *option, const char *value);
|
||||
int sysmngr_uci_delete(struct uci_context *uci_ctx, const char *package, const char *section);
|
||||
|
||||
typedef void (*sysmngr_ubus_cb)(struct ubus_request *req, int type, struct blob_attr *msg);
|
||||
typedef void (*sysmngr_ubus_async_cb)(struct ubus_request *req, int ret);
|
||||
|
||||
int sysmngr_ubus_invoke_async(struct ubus_context *ubus_ctx, const char *obj, const char *method, struct blob_attr *msg,
|
||||
sysmngr_ubus_cb data_callback, sysmngr_ubus_async_cb complete_callback);
|
||||
|
||||
int sysmngr_get_uptime(void);
|
||||
|
||||
#endif //__UTILS_H
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue