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106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
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htop - ProcessLocksScreen.c
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(C) 2020 htop dev team
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Released under the GNU GPLv2+, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "config.h" // IWYU pragma: keep
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#include "ProcessLocksScreen.h"
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#include <inttypes.h>
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#include <limits.h>
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#include <stdlib.h>
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#include "Panel.h"
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#include "Platform.h"
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#include "ProvideCurses.h"
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#include "Vector.h"
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#include "XUtils.h"
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ProcessLocksScreen* ProcessLocksScreen_new(const Process* process) {
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ProcessLocksScreen* this = xMalloc(sizeof(ProcessLocksScreen));
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Object_setClass(this, Class(ProcessLocksScreen));
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if (Process_isThread(process))
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this->pid = process->tgid;
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else
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this->pid = process->pid;
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return (ProcessLocksScreen*) InfoScreen_init(&this->super, process, NULL, LINES - 2, " ID TYPE EXCLUSION READ/WRITE DEVICE:INODE START END FILENAME");
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}
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void ProcessLocksScreen_delete(Object* this) {
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free(InfoScreen_done((InfoScreen*)this));
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}
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static void ProcessLocksScreen_draw(InfoScreen* this) {
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InfoScreen_drawTitled(this, "Snapshot of file locks of process %d - %s", ((ProcessLocksScreen*)this)->pid, Process_getCommand(this->process));
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}
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static inline void FileLocks_Data_clear(FileLocks_Data* data) {
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free(data->locktype);
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free(data->exclusive);
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free(data->readwrite);
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free(data->filename);
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}
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static void ProcessLocksScreen_scan(InfoScreen* this) {
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Panel* panel = this->display;
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int idx = Panel_getSelectedIndex(panel);
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Panel_prune(panel);
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FileLocks_ProcessData* pdata = Platform_getProcessLocks(((ProcessLocksScreen*)this)->pid);
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if (!pdata) {
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InfoScreen_addLine(this, "This feature is not supported on your platform.");
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} else if (pdata->error) {
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InfoScreen_addLine(this, "Could not determine file locks.");
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} else {
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FileLocks_LockData* ldata = pdata->locks;
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if (!ldata) {
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InfoScreen_addLine(this, "No locks have been found for the selected process.");
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}
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while (ldata) {
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FileLocks_Data* data = &ldata->data;
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char entry[512];
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if (ULLONG_MAX == data->end) {
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xSnprintf(entry, sizeof(entry), "%10d %-10s %-10s %-10s %02x:%02x:%020"PRIu64" %20"PRIu64" %20s %s",
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data->id,
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data->locktype, data->exclusive, data->readwrite,
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data->dev[0], data->dev[1], data->inode,
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data->start, "<END OF FILE>",
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data->filename ? data->filename : "<N/A>"
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);
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} else {
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xSnprintf(entry, sizeof(entry), "%10d %-10s %-10s %-10s %02x:%02x:%020"PRIu64" %20"PRIu64" %20"PRIu64" %s",
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data->id,
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data->locktype, data->exclusive, data->readwrite,
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data->dev[0], data->dev[1], data->inode,
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data->start, data->end,
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data->filename ? data->filename : "<N/A>"
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);
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}
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InfoScreen_addLine(this, entry);
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FileLocks_Data_clear(&ldata->data);
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FileLocks_LockData* old = ldata;
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ldata = ldata->next;
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free(old);
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}
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}
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free(pdata);
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Vector_insertionSort(this->lines);
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Vector_insertionSort(panel->items);
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Panel_setSelected(panel, idx);
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}
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const InfoScreenClass ProcessLocksScreen_class = {
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.super = {
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.extends = Class(Object),
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.delete = ProcessLocksScreen_delete
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},
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.scan = ProcessLocksScreen_scan,
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.draw = ProcessLocksScreen_draw
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};
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