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Isolate portable and Linux-specific process fields.

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This commit is contained in:
Hisham Muhammad
2015-03-16 01:43:04 -03:00
parent bc928d7f47
commit be1700cf94
10 changed files with 602 additions and 454 deletions
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135
linux/LinuxProcessList.c
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@ -152,6 +152,7 @@ static ssize_t xread(int fd, void *buf, size_t count) {
}
static bool LinuxProcessList_readStatFile(Process *process, const char* dirname, const char* name, char* command) {
LinuxProcess* lp = (LinuxProcess*) process;
char filename[MAX_NAME+1];
snprintf(filename, MAX_NAME, "%s/%s/stat", dirname, name);
int fd = open(filename, O_RDONLY);
@ -194,19 +195,19 @@ static bool LinuxProcessList_readStatFile(Process *process, const char* dirname,
location += 1;
process->minflt = strtoull(location, &location, 10);
location += 1;
process->cminflt = strtoull(location, &location, 10);
lp->cminflt = strtoull(location, &location, 10);
location += 1;
process->majflt = strtoull(location, &location, 10);
location += 1;
process->cmajflt = strtoull(location, &location, 10);
lp->cmajflt = strtoull(location, &location, 10);
location += 1;
process->utime = strtoull(location, &location, 10);
lp->utime = strtoull(location, &location, 10);
location += 1;
process->stime = strtoull(location, &location, 10);
lp->stime = strtoull(location, &location, 10);
location += 1;
process->cutime = strtoull(location, &location, 10);
lp->cutime = strtoull(location, &location, 10);
location += 1;
process->cstime = strtoull(location, &location, 10);
lp->cstime = strtoull(location, &location, 10);
location += 1;
process->priority = strtol(location, &location, 10);
location += 1;
@ -218,7 +219,9 @@ static bool LinuxProcessList_readStatFile(Process *process, const char* dirname,
process->exit_signal = strtol(location, &location, 10);
location += 1;
assert(location != NULL);
process->processor = strtol(location, &location, 10);
lp->processor = strtol(location, &location, 10);
process->time = lp->utime + lp->stime;
return true;
}
@ -246,7 +249,7 @@ static bool LinuxProcessList_statProcessDir(Process* process, const char* dirnam
#ifdef HAVE_TASKSTATS
static void LinuxProcessList_readIoFile(Process* process, const char* dirname, char* name, unsigned long long now) {
static void LinuxProcessList_readIoFile(LinuxProcess* process, const char* dirname, char* name, unsigned long long now) {
char filename[MAX_NAME+1];
filename[MAX_NAME] = '\0';
@ -307,7 +310,7 @@ static void LinuxProcessList_readIoFile(Process* process, const char* dirname, c
static bool LinuxProcessList_readStatmFile(Process* process, const char* dirname, const char* name) {
static bool LinuxProcessList_readStatmFile(LinuxProcess* process, const char* dirname, const char* name) {
char filename[MAX_NAME+1];
snprintf(filename, MAX_NAME, "%s/%s/statm", dirname, name);
int fd = open(filename, O_RDONLY);
@ -320,8 +323,8 @@ static bool LinuxProcessList_readStatmFile(Process* process, const char* dirname
char *p = buf;
errno = 0;
process->m_size = strtol(p, &p, 10); if (*p == ' ') p++;
process->m_resident = strtol(p, &p, 10); if (*p == ' ') p++;
process->super.m_size = strtol(p, &p, 10); if (*p == ' ') p++;
process->super.m_resident = strtol(p, &p, 10); if (*p == ' ') p++;
process->m_share = strtol(p, &p, 10); if (*p == ' ') p++;
process->m_trs = strtol(p, &p, 10); if (*p == ' ') p++;
process->m_lrs = strtol(p, &p, 10); if (*p == ' ') p++;
@ -360,7 +363,7 @@ static void LinuxProcessList_readOpenVZData(ProcessList* this, Process* process,
#ifdef HAVE_CGROUP
static void LinuxProcessList_readCGroupFile(Process* process, const char* dirname, const char* name) {
static void LinuxProcessList_readCGroupFile(LinuxProcess* process, const char* dirname, const char* name) {
char filename[MAX_NAME+1];
snprintf(filename, MAX_NAME, "%s/%s/cgroup", dirname, name);
FILE* file = fopen(filename, "r");
@ -390,7 +393,7 @@ static void LinuxProcessList_readCGroupFile(Process* process, const char* dirnam
#ifdef HAVE_VSERVER
static void LinuxProcessList_readVServerData(Process* process, const char* dirname, const char* name) {
static void LinuxProcessList_readVServerData(LinuxProcess* process, const char* dirname, const char* name) {
char filename[MAX_NAME+1];
snprintf(filename, MAX_NAME, "%s/%s/status", dirname, name);
FILE* file = fopen(filename, "r");
@ -423,7 +426,7 @@ static void LinuxProcessList_readVServerData(Process* process, const char* dirna
#ifdef HAVE_OOM
static void LinuxProcessList_readOomData(Process* process, const char* dirname, const char* name) {
static void LinuxProcessList_readOomData(LinuxProcess* process, const char* dirname, const char* name) {
char filename[MAX_NAME+1];
snprintf(filename, MAX_NAME, "%s/%s/oom_score", dirname, name);
FILE* file = fopen(filename, "r");
@ -514,95 +517,97 @@ static bool LinuxProcessList_processEntries(LinuxProcessList* this, const char*
if (pid <= 0)
continue;
Process* process = NULL;
Process* existingProcess = (Process*) Hashtable_get(this->super.processTable, pid);
Process* proc = NULL;
Process* existingProc = (Process*) Hashtable_get(this->super.processTable, pid);
if (existingProcess) {
assert(Vector_indexOf(this->processes, existingProcess, Process_pidCompare) != -1);
process = existingProcess;
assert(process->pid == pid);
if (existingProc) {
assert(Vector_indexOf(this->processes, existingProc, Process_pidCompare) != -1);
proc = existingProc;
assert(proc->pid == pid);
} else {
process = (Process*) LinuxProcess_new(settings);
assert(process->comm == NULL);
process->pid = pid;
process->tgid = parent ? parent->pid : pid;
proc = (Process*) LinuxProcess_new(settings);
assert(proc->comm == NULL);
proc->pid = pid;
proc->tgid = parent ? parent->pid : pid;
}
LinuxProcess* lp = (LinuxProcess*) proc;
char subdirname[MAX_NAME+1];
snprintf(subdirname, MAX_NAME, "%s/%s/task", dirname, name);
LinuxProcessList_processEntries(this, subdirname, process, period, tv);
LinuxProcessList_processEntries(this, subdirname, proc, period, tv);
#ifdef HAVE_TASKSTATS
if (settings->flags & PROCESS_FLAG_IO)
LinuxProcessList_readIoFile(process, dirname, name, now);
LinuxProcessList_readIoFile(lp, dirname, name, now);
#endif
if (! LinuxProcessList_readStatmFile(process, dirname, name))
if (! LinuxProcessList_readStatmFile(lp, dirname, name))
goto errorReadingProcess;
process->show = ! ((hideKernelThreads && Process_isKernelThread(process)) || (hideUserlandThreads && Process_isUserlandThread(process)));
proc->show = ! ((hideKernelThreads && Process_isKernelThread(proc)) || (hideUserlandThreads && Process_isUserlandThread(proc)));
char command[MAX_NAME+1];
unsigned long long int lasttimes = (process->utime + process->stime);
if (! LinuxProcessList_readStatFile(process, dirname, name, command))
unsigned long long int lasttimes = (lp->utime + lp->stime);
if (! LinuxProcessList_readStatFile(proc, dirname, name, command))
goto errorReadingProcess;
if (settings->flags & PROCESS_FLAG_LINUX_IOPRIO)
LinuxProcess_updateIOPriority((LinuxProcess*)process);
float percent_cpu = (process->utime + process->stime - lasttimes) / period * 100.0;
process->percent_cpu = MAX(MIN(percent_cpu, cpus*100.0), 0.0);
if (isnan(process->percent_cpu)) process->percent_cpu = 0.0;
process->percent_mem = (process->m_resident * PAGE_SIZE_KB) / (double)(this->totalMem) * 100.0;
LinuxProcess_updateIOPriority(lp);
float percent_cpu = (lp->utime + lp->stime - lasttimes) / period * 100.0;
proc->percent_cpu = MAX(MIN(percent_cpu, cpus*100.0), 0.0);
if (isnan(proc->percent_cpu)) proc->percent_cpu = 0.0;
proc->percent_mem = (proc->m_resident * PAGE_SIZE_KB) / (double)(this->totalMem) * 100.0;
if(!existingProcess) {
if(!existingProc) {
if (! LinuxProcessList_statProcessDir(process, dirname, name, curTime))
if (! LinuxProcessList_statProcessDir(proc, dirname, name, curTime))
goto errorReadingProcess;
process->user = UsersTable_getRef(this->super.usersTable, process->st_uid);
proc->user = UsersTable_getRef(this->super.usersTable, proc->st_uid);
#ifdef HAVE_OPENVZ
LinuxProcessList_readOpenVZData(this, process, dirname, name);
LinuxProcessList_readOpenVZData(this, lp, dirname, name);
#endif
#ifdef HAVE_VSERVER
if (settings->flags & PROCESS_FLAG_LINUX_VSERVER)
LinuxProcessList_readVServerData(process, dirname, name);
LinuxProcessList_readVServerData(lp, dirname, name);
#endif
if (! LinuxProcessList_readCmdlineFile(process, dirname, name))
if (! LinuxProcessList_readCmdlineFile(proc, dirname, name))
goto errorReadingProcess;
ProcessList_add((ProcessList*)this, process);
ProcessList_add((ProcessList*)this, proc);
} else {
if (settings->updateProcessNames) {
if (! LinuxProcessList_readCmdlineFile(process, dirname, name))
if (! LinuxProcessList_readCmdlineFile(proc, dirname, name))
goto errorReadingProcess;
}
}
#ifdef HAVE_CGROUP
if (settings->flags & PROCESS_FLAG_LINUX_CGROUP)
LinuxProcessList_readCGroupFile(process, dirname, name);
LinuxProcessList_readCGroupFile(lp, dirname, name);
#endif
#ifdef HAVE_OOM
LinuxProcessList_readOomData(process, dirname, name);
LinuxProcessList_readOomData(lp, dirname, name);
#endif
if (process->state == 'Z') {
free(process->comm);
process->basenameOffset = -1;
process->comm = strdup(command);
} else if (Process_isThread(process)) {
if (settings->showThreadNames || Process_isKernelThread(process) || process->state == 'Z') {
free(process->comm);
process->basenameOffset = -1;
process->comm = strdup(command);
if (proc->state == 'Z') {
free(proc->comm);
proc->basenameOffset = -1;
proc->comm = strdup(command);
} else if (Process_isThread(proc)) {
if (settings->showThreadNames || Process_isKernelThread(proc) || proc->state == 'Z') {
free(proc->comm);
proc->basenameOffset = -1;
proc->comm = strdup(command);
} else if (settings->showThreadNames) {
if (! LinuxProcessList_readCmdlineFile(process, dirname, name))
if (! LinuxProcessList_readCmdlineFile(proc, dirname, name))
goto errorReadingProcess;
}
if (Process_isKernelThread(process)) {
if (Process_isKernelThread(proc)) {
this->kernelThreads++;
} else {
this->userlandThreads++;
@ -610,23 +615,23 @@ static bool LinuxProcessList_processEntries(LinuxProcessList* this, const char*
}
this->totalTasks++;
if (process->state == 'R')
if (proc->state == 'R')
this->runningTasks++;
process->updated = true;
proc->updated = true;
continue;
// Exception handler.
errorReadingProcess: {
if (process->comm) {
free(process->comm);
process->basenameOffset = -1;
process->comm = NULL;
if (proc->comm) {
free(proc->comm);
proc->basenameOffset = -1;
proc->comm = NULL;
}
if (existingProcess)
ProcessList_remove((ProcessList*)this, process);
if (existingProc)
ProcessList_remove((ProcessList*)this, proc);
else
LinuxProcess_delete((Object*)process);
Process_delete((Object*)proc);
}
}
closedir(dir);