/**
* Read all processes to initialize the information tree.
* @param reference reference of ProcessTree
* @return treesize>0 if succeeded otherwise =0.
*/
int initprocesstree_sysdep(ProcessTree_T ** reference) {
int treesize;
size_t size = sizeof(maxslp);
char buf[_POSIX2_LINE_MAX];
int mib_proc2[6] = {CTL_KERN, KERN_PROC2, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc2), 0};
static int mib_maxslp[] = {CTL_VM, VM_MAXSLP};
ProcessTree_T *pt;
kvm_t *kvm_handle;
static struct kinfo_proc2 *pinfo;
if (sysctl(mib_maxslp, 2, &maxslp, &size, NULL, 0) < 0) {
LogError("system statistic error -- vm.maxslp failed");
return FALSE;
}
if (sysctl(mib_proc2, 6, NULL, &size, NULL, 0) == -1) {
LogError("system statistic error -- kern.proc2 #1 failed");
return FALSE;
}
size *= 2; // Add reserve for new processes which were created between calls of sysctl
pinfo = CALLOC(1, size);
mib_proc2[5] = (int)(size / sizeof(struct kinfo_proc2));
if (sysctl(mib_proc2, 6, pinfo, &size, NULL, 0) == -1) {
FREE(pinfo);
LogError("system statistic error -- kern.proc2 #2 failed");
return FALSE;
}
treesize = (int)(size / sizeof(struct kinfo_proc2));
pt = CALLOC(sizeof(ProcessTree_T), treesize);
if (! (kvm_handle = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, buf))) {
LogError("system statistic error -- kvm_openfiles failed: %s", buf);
return FALSE;
}
for (int i = 0; i < treesize; i++) {
pt[i].pid = pinfo[i].p_pid;
pt[i].ppid = pinfo[i].p_ppid;
pt[i].starttime = pinfo[i].p_ustart_sec;
pt[i].cputime = (long)((pinfo[i].p_rtime_sec * 10) + (pinfo[i].p_rtime_usec / 100000));
pt[i].cpu_percent = 0;
pt[i].mem_kbyte = (unsigned long)(pinfo[i].p_vm_rssize * pagesize_kbyte);
if (pinfo[i].p_stat == SZOMB)
pt[i].status_flag |= PROCESS_ZOMBIE;
pt[i].time = get_float_time();
char **args;
if ((args = kvm_getargv2(kvm_handle, &pinfo[i], 0))) {
StringBuffer_T cmdline = StringBuffer_create(64);
for (int j = 0; args[j]; j++)
StringBuffer_append(cmdline, args[j + 1] ? "%s " : "%s", args[j]);
pt[i].cmdline = Str_dup(StringBuffer_toString(StringBuffer_trim(cmdline)));
StringBuffer_free(&cmdline);
}
if (! pt[i].cmdline || ! *pt[i].cmdline)
pt[i].cmdline = Str_dup(pinfo[i].p_comm);
}
FREE(pinfo);
kvm_close(kvm_handle);
*reference = pt;
return treesize;
}
/**
* Read all processes to initialize the information tree.
* @param reference reference of ProcessTree
* @param pflags Process engine flags
* @return treesize > 0 if succeeded otherwise 0
*/
int initprocesstree_sysdep(ProcessTree_T **reference, ProcessEngine_Flags pflags) {
size_t size = sizeof(maxslp);
static int mib_maxslp[] = {CTL_VM, VM_MAXSLP};
if (sysctl(mib_maxslp, 2, &maxslp, &size, NULL, 0) < 0) {
LogError("system statistic error -- vm.maxslp failed\n");
return 0;
}
int mib_proc2[6] = {CTL_KERN, KERN_PROC2, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc2), 0};
if (sysctl(mib_proc2, 6, NULL, &size, NULL, 0) == -1) {
LogError("system statistic error -- kern.proc2 #1 failed\n");
return 0;
}
size *= 2; // Add reserve for new processes which were created between calls of sysctl
struct kinfo_proc2 *pinfo = CALLOC(1, size);
mib_proc2[5] = (int)(size / sizeof(struct kinfo_proc2));
if (sysctl(mib_proc2, 6, pinfo, &size, NULL, 0) == -1) {
FREE(pinfo);
LogError("system statistic error -- kern.proc2 #2 failed\n");
return 0;
}
int treesize = (int)(size / sizeof(struct kinfo_proc2));
ProcessTree_T *pt = CALLOC(sizeof(ProcessTree_T), treesize);
char buf[_POSIX2_LINE_MAX];
kvm_t *kvm_handle = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, buf);
if (! kvm_handle) {
FREE(pinfo);
FREE(pt);
LogError("system statistic error -- kvm_openfiles failed: %s\n", buf);
return 0;
}
StringBuffer_T cmdline = NULL;
if (pflags & ProcessEngine_CollectCommandLine)
cmdline = StringBuffer_create(64);
for (int i = 0; i < treesize; i++) {
pt[i].pid = pinfo[i].p_pid;
pt[i].ppid = pinfo[i].p_ppid;
pt[i].cred.uid = pinfo[i].p_ruid;
pt[i].cred.euid = pinfo[i].p_uid;
pt[i].cred.gid = pinfo[i].p_rgid;
pt[i].threads = pinfo[i].p_nlwps;
pt[i].uptime = systeminfo.time / 10. - pinfo[i].p_ustart_sec;
pt[i].cpu.time = pinfo[i].p_rtime_sec * 10 + (double)pinfo[i].p_rtime_usec / 100000.;
pt[i].memory.usage = (uint64_t)pinfo[i].p_vm_rssize * (uint64_t)pagesize;
pt[i].zombie = pinfo[i].p_stat == SZOMB ? true : false;
if (pflags & ProcessEngine_CollectCommandLine) {
char **args = kvm_getargv2(kvm_handle, &pinfo[i], 0);
if (args) {
StringBuffer_clear(cmdline);
for (int j = 0; args[j]; j++)
StringBuffer_append(cmdline, args[j + 1] ? "%s " : "%s", args[j]);
if (StringBuffer_length(cmdline))
pt[i].cmdline = Str_dup(StringBuffer_toString(StringBuffer_trim(cmdline)));
}
if (! pt[i].cmdline || ! *pt[i].cmdline) {
FREE(pt[i].cmdline);
pt[i].cmdline = Str_dup(pinfo[i].p_comm);
}
}
}
if (pflags & ProcessEngine_CollectCommandLine)
StringBuffer_free(&cmdline);
FREE(pinfo);
kvm_close(kvm_handle);
*reference = pt;
return treesize;
}
