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Respect "Show custom thread names" setting update

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Update merged command-line when started with "Show custom thread names"
disabled and enabling at runtime.

Also only consider showThreadNames when working on userland threads.
This commit is contained in:
Christian Göttsche 2021-08-08 16:04:26 +02:00 committed by cgzones
parent 2d1b6f4783
commit ce27f8379d
2 changed files with 14 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
Process.c
View File

@ -401,7 +401,7 @@ void Process_makeCommandStr(Process* this) {
return;
if (this->state == 'Z' && !this->mergedCommand.str)
return;
if (Process_isUserlandThread(this) && settings->showThreadNames)
if (Process_isUserlandThread(this) && settings->showThreadNames && (showThreadNames == mc->prevShowThreadNames))
return;
/* this->mergedCommand.str needs updating only if its state or contents changed.
@ -500,7 +500,7 @@ void Process_makeCommandStr(Process* this) {
assert(cmdlineBasenameStart <= (int)strlen(cmdline));
if (!showMergedCommand || !procExe || !procComm) { /* fall back to cmdline */
if (showMergedCommand && showThreadNames && !procExe && procComm && strlen(procComm)) { /* Prefix column with comm */
if (showMergedCommand && (!Process_isUserlandThread(this) || showThreadNames) && !procExe && procComm && strlen(procComm)) { /* Prefix column with comm */
if (strncmp(cmdline + cmdlineBasenameStart, procComm, MINIMUM(TASK_COMM_LEN - 1, strlen(procComm))) != 0) {
WRITE_HIGHLIGHT(0, strlen(procComm), commAttr, CMDLINE_HIGHLIGHT_FLAG_COMM);
str = stpcpy(str, procComm);
@ -524,7 +524,7 @@ void Process_makeCommandStr(Process* this) {
assert(exeBasenameOffset <= (int)strlen(procExe));
bool haveCommInExe = false;
if (procExe && procComm && showThreadNames) {
if (procExe && procComm && (!Process_isUserlandThread(this) || showThreadNames)) {
haveCommInExe = strncmp(procExe + exeBasenameOffset, procComm, TASK_COMM_LEN - 1) == 0;
}
@ -556,14 +556,14 @@ void Process_makeCommandStr(Process* this) {
/* Try to match procComm with procExe's basename: This is reliable (predictable) */
if (searchCommInCmdline) {
/* commStart/commEnd will be adjusted later along with cmdline */
haveCommInCmdline = showThreadNames && findCommInCmdline(procComm, cmdline, cmdlineBasenameStart, &commStart, &commEnd);
haveCommInCmdline = (!Process_isUserlandThread(this) || showThreadNames) && findCommInCmdline(procComm, cmdline, cmdlineBasenameStart, &commStart, &commEnd);
}
int matchLen = matchCmdlinePrefixWithExeSuffix(cmdline, cmdlineBasenameStart, procExe, exeBasenameOffset, exeBasenameLen);
bool haveCommField = false;
if (!haveCommInExe && !haveCommInCmdline && procComm && showThreadNames) {
if (!haveCommInExe && !haveCommInCmdline && procComm && (!Process_isUserlandThread(this) || showThreadNames)) {
WRITE_SEPARATOR;
WRITE_HIGHLIGHT(0, strlen(procComm), commAttr, CMDLINE_HIGHLIGHT_FLAG_COMM);
str = stpcpy(str, procComm);
@ -583,7 +583,7 @@ void Process_makeCommandStr(Process* this) {
WRITE_SEPARATOR;
}
if (!haveCommInExe && haveCommInCmdline && !haveCommField && showThreadNames)
if (!haveCommInExe && haveCommInCmdline && !haveCommField && (!Process_isUserlandThread(this) || showThreadNames))
WRITE_HIGHLIGHT(commStart, commEnd - commStart, commAttr, CMDLINE_HIGHLIGHT_FLAG_COMM);
/* Display cmdline if it hasn't been consumed by procExe */

19
linux/LinuxProcessList.c
View File

@ -1223,7 +1223,7 @@ static bool LinuxProcessList_readCmdlineFile(Process* process, openat_arg_t proc
if ((amtRead = xReadfileat(procFd, "comm", command, sizeof(command))) > 0) {
command[amtRead - 1] = '\0';
Process_updateComm(process, command);
} else if (process->procComm) {
} else {
Process_updateComm(process, NULL);
}
@ -1543,18 +1543,15 @@ static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, openat_arg_
LinuxProcessList_readAutogroup(lp, procFd);
}
if (proc->state == 'Z' && !proc->cmdline && statCommand[0]) {
if (!proc->cmdline && statCommand[0] &&
(proc->state == 'Z' || Process_isKernelThread(proc) || settings->showThreadNames)) {
Process_updateCmdline(proc, statCommand, 0, strlen(statCommand));
} else if (Process_isThread(proc)) {
if ((settings->showThreadNames || Process_isKernelThread(proc)) && statCommand[0]) {
Process_updateCmdline(proc, statCommand, 0, strlen(statCommand));
}
}
if (Process_isKernelThread(proc)) {
pl->kernelThreads++;
} else {
pl->userlandThreads++;
}
if (Process_isKernelThread(proc)) {
pl->kernelThreads++;
} else if (Process_isUserlandThread(proc)) {
pl->userlandThreads++;
}
/* Set at the end when we know if a new entry is a thread */