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OpenBSD: add COMM column and use merged command line helpers

This commit is contained in:
Christian Göttsche 2021-05-18 23:00:30 +02:00 committed by BenBE
parent 4da618030c
commit d445676f09
2 changed files with 26 additions and 12 deletions
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7
openbsd/OpenBSDProcess.c
View File

@ -181,6 +181,13 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
.flags = 0,
.pidColumn = true,
},
[PROC_COMM] = {
.name = "COMM",
.title = "COMM ",
.description = "comm string of the process",
.flags = 0,
},
};
Process* OpenBSDProcess_new(const Settings* settings) {

31
openbsd/OpenBSDProcessList.c
View File

@ -171,15 +171,17 @@ static void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
}
}
static char* OpenBSDProcessList_readProcessName(kvm_t* kd, const struct kinfo_proc* kproc, int* basenameEnd) {
static void OpenBSDProcessList_updateProcessName(kvm_t* kd, const struct kinfo_proc* kproc, Process* proc) {
Process_updateComm(proc, kproc->p_comm);
/*
* Like OpenBSD's top(1), we try to fall back to the command name
* (argv[0]) if we fail to construct the full command.
*/
char** arg = kvm_getargv(kd, kproc, 500);
if (arg == NULL || *arg == NULL) {
*basenameEnd = strlen(kproc->p_comm);
return xStrdup(kproc->p_comm);
Process_updateCmdline(proc, kproc->p_comm, 0, strlen(kproc->p_comm));
return;
}
size_t len = 0;
@ -190,22 +192,30 @@ static char* OpenBSDProcessList_readProcessName(kvm_t* kd, const struct kinfo_pr
/* don't use xMalloc here - we want to handle huge argv's gracefully */
char* s;
if ((s = malloc(len)) == NULL) {
*basenameEnd = strlen(kproc->p_comm);
return xStrdup(kproc->p_comm);
Process_updateCmdline(proc, kproc->p_comm, 0, strlen(kproc->p_comm));
return;
}
*s = '\0';
int start = 0;
int end = 0;
for (int i = 0; arg[i] != NULL; i++) {
size_t n = strlcat(s, arg[i], len);
if (i == 0) {
*basenameEnd = MINIMUM(n, len - 1);
end = MINIMUM(n, len - 1);
/* check if cmdline ended earlier, e.g 'kdeinit5: Running...' */
for (int j = end; j > 0; j--) {
if (arg[0][j] == ' ' && arg[0][j-1] != '\\') {
end = (arg[0][j-1] == ':') ? (j-1) : j;
}
}
}
/* the trailing space should get truncated anyway */
strlcat(s, " ", len);
}
return s;
Process_updateCmdline(proc, s, start, end);
}
/*
@ -260,8 +270,7 @@ static void OpenBSDProcessList_scanProcs(OpenBSDProcessList* this) {
proc->user = UsersTable_getRef(this->super.usersTable, proc->st_uid);
ProcessList_add(&this->super, proc);
proc->cmdline = OpenBSDProcessList_readProcessName(this->kd, kproc, &proc->cmdlineBasenameEnd);
proc->mergedCommand.cmdlineChanged = true;
OpenBSDProcessList_updateProcessName(this->kd, kproc, proc);
proc->tty_nr = kproc->p_tdev;
const char* name = ((dev_t)kproc->p_tdev != NODEV) ? devname(kproc->p_tdev, S_IFCHR) : NULL;
@ -273,9 +282,7 @@ static void OpenBSDProcessList_scanProcs(OpenBSDProcessList* this) {
}
} else {
if (settings->updateProcessNames) {
free(proc->cmdline);
proc->cmdline = OpenBSDProcessList_readProcessName(this->kd, kproc, &proc->cmdlineBasenameEnd);
proc->mergedCommand.cmdlineChanged = true;
OpenBSDProcessList_updateProcessName(this->kd, kproc, proc);
}
}