Add missing file.

OpenFilesScreen.c

@@ -0,0 +1,194 @@
+/*
+htop - OpenFilesScreen.c
+(C) 2005-2006 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "OpenFilesScreen.h"
+#include "ProcessList.h"
+#include "Process.h"
+#include "ListItem.h"
+#include "Panel.h"
+#include "FunctionBar.h"
+
+/*{
+
+typedef struct OpenFiles_ProcessData_ {
+   char* data[256];
+   struct OpenFiles_FileData_* files;
+   bool failed;
+} OpenFiles_ProcessData;
+
+typedef struct OpenFiles_FileData_ {
+   char* data[256];
+   struct OpenFiles_FileData_* next;
+} OpenFiles_FileData;
+
+typedef struct OpenFilesScreen_ {
+   Process* process;
+   Panel* display;
+   FunctionBar* bar;
+   bool tracing;
+} OpenFilesScreen;
+
+}*/
+
+static char* tbFunctions[] = {"Refresh", "Done   ", NULL};
+
+static char* tbKeys[] = {"F5", "Esc"};
+
+static int tbEvents[] = {KEY_F(5), 27};
+
+OpenFilesScreen* OpenFilesScreen_new(Process* process) {
+   OpenFilesScreen* this = (OpenFilesScreen*) malloc(sizeof(OpenFilesScreen));
+   this->process = process;
+   this->display = Panel_new(0, 1, COLS, LINES-3, LISTITEM_CLASS, true, ListItem_compare);
+   this->bar = FunctionBar_new(tbFunctions, tbKeys, tbEvents);
+   this->tracing = true;
+   return this;
+}
+
+void OpenFilesScreen_delete(OpenFilesScreen* this) {
+   Panel_delete((Object*)this->display);
+   FunctionBar_delete((Object*)this->bar);
+   free(this);
+}
+
+static void OpenFilesScreen_draw(OpenFilesScreen* this) {
+   attrset(CRT_colors[METER_TEXT]);
+   mvhline(0, 0, ' ', COLS);
+   mvprintw(0, 0, "Files open in process %d - %s", this->process->pid, this->process->comm);
+   attrset(CRT_colors[DEFAULT_COLOR]);
+   Panel_draw(this->display, true);
+   FunctionBar_draw(this->bar, NULL);
+}
+
+static OpenFiles_ProcessData* OpenFilesScreen_getProcessData(int pid) {
+   char command[1025];
+   snprintf(command, 1024, "lsof -p %d -F 2> /dev/null", pid);
+   FILE* fd = popen(command, "r");
+   OpenFiles_ProcessData* process = calloc(sizeof(OpenFiles_ProcessData), 1);
+   OpenFiles_FileData* file = NULL;
+   OpenFiles_ProcessData* item = process;
+   process->failed = true;
+   bool anyRead = false;
+   while (!feof(fd)) {
+      int cmd = fgetc(fd);
+      if (cmd == EOF && !anyRead) {
+         process->failed = true;
+         break;
+      }
+      anyRead = true;
+      process->failed = false;
+      char* entry = malloc(1024);
+      if (!fgets(entry, 1024, fd)) break;
+      char* newline = strrchr(entry, '\n');
+      *newline = '\0';
+      if (cmd == 'f') {
+         OpenFiles_FileData* nextFile = calloc(sizeof(OpenFiles_ProcessData), 1);
+         if (file == NULL) {
+            process->files = nextFile;
+         } else {
+            file->next = nextFile;
+         }
+         file = nextFile;
+         item = (OpenFiles_ProcessData*) file;
+      }
+      item->data[cmd] = entry;
+   }
+   pclose(fd);
+   return process;
+}
+
+static void OpenFilesScreen_scan(OpenFilesScreen* this) {
+   Panel* panel = this->display;
+   int index = MAX(Panel_getSelectedIndex(panel), 0);
+   Panel_prune(panel);
+   OpenFiles_ProcessData* process = OpenFilesScreen_getProcessData(this->process->pid);
+   if (process->failed) {
+      Panel_add(panel, (Object*) ListItem_new("Could not execute 'lsof'. Please make sure it is available in your $PATH.", 0));
+   } else {
+      OpenFiles_FileData* file = process->files;
+      while (file) {
+         char entry[1024];
+         sprintf(entry, "%5s %4s %10s %10s %10s %s",
+            file->data['f'] ? file->data['f'] : "",
+            file->data['t'] ? file->data['t'] : "",
+            file->data['D'] ? file->data['D'] : "",
+            file->data['s'] ? file->data['s'] : "",
+            file->data['i'] ? file->data['i'] : "",
+            file->data['n'] ? file->data['n'] : "");
+         Panel_add(panel, (Object*) ListItem_new(entry, 0));
+         for (int i = 0; i < 255; i++)
+            if (file->data[i])
+               free(file->data[i]);
+         OpenFiles_FileData* old = file;
+         file = file->next;
+         free(old);
+      }
+      for (int i = 0; i < 255; i++)
+         if (process->data[i])
+            free(process->data[i]);
+   }
+   free(process);
+   Vector_sort(panel->items);
+   Panel_setSelected(panel, index);
+}
+
+void OpenFilesScreen_run(OpenFilesScreen* this) {
+   Panel* panel = this->display;
+   Panel_setHeader(panel, "   FD TYPE     DEVICE       SIZE       NODE NAME");
+   OpenFilesScreen_scan(this);
+   OpenFilesScreen_draw(this);
+   //CRT_disableDelay();
+   
+   bool looping = true;
+   while (looping) {
+      Panel_draw(panel, true);
+      int ch = getch();
+      if (ch == KEY_MOUSE) {
+         MEVENT mevent;
+         int ok = getmouse(&mevent);
+         if (ok == OK)
+            if (mevent.y >= panel->y && mevent.y < LINES - 1) {
+               Panel_setSelected(panel, mevent.y - panel->y + panel->scrollV);
+               ch = 0;
+            } if (mevent.y == LINES - 1)
+               ch = FunctionBar_synthesizeEvent(this->bar, mevent.x);
+      }
+      switch(ch) {
+      case ERR:
+         continue;
+      case KEY_F(5):
+         clear();
+         OpenFilesScreen_scan(this);
+         OpenFilesScreen_draw(this);
+         break;
+      case '\014': // Ctrl+L
+         clear();
+         OpenFilesScreen_draw(this);
+         break;
+      case 'q':
+      case 27:
+         looping = false;
+         break;
+      case KEY_RESIZE:
+         Panel_resize(panel, COLS, LINES-2);
+         OpenFilesScreen_draw(this);
+         break;
+      default:
+         Panel_onKey(panel, ch);
+      }
+   }
+   //CRT_enableDelay();
+}