src/lib/ecore_file/ecore_file_monitor.c

   1 #ifdef HAVE_CONFIG_H
   2 # include <config.h>
   3 #endif
   4
   5 #include "ecore_file_private.h"
   6
   7 typedef enum {
   8      ECORE_FILE_MONITOR_TYPE_NONE,
   9 #ifdef HAVE_INOTIFY
  10      ECORE_FILE_MONITOR_TYPE_INOTIFY,
  11 #endif
  12 #ifdef HAVE_NOTIFY_WIN32
  13      ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32,
  14 #endif
  15 #ifdef HAVE_POLL
  16      ECORE_FILE_MONITOR_TYPE_POLL
  17 #endif
  18 } Ecore_File_Monitor_Type;
  19
  20 static Ecore_File_Monitor_Type monitor_type = ECORE_FILE_MONITOR_TYPE_NONE;
  21
  22 int
  23 ecore_file_monitor_init(void)
  24 {
  25 #ifdef HAVE_INOTIFY
  26    monitor_type = ECORE_FILE_MONITOR_TYPE_INOTIFY;
  27    if (ecore_file_monitor_inotify_init())
  28      return 1;
  29 #endif
  30 #ifdef HAVE_NOTIFY_WIN32
  31    monitor_type = ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32;
  32    if (ecore_file_monitor_win32_init())
  33      return 1;
  34 #endif
  35 #ifdef HAVE_POLL
  36    monitor_type = ECORE_FILE_MONITOR_TYPE_POLL;
  37    if (ecore_file_monitor_poll_init())
  38      return 1;
  39 #endif
  40    monitor_type = ECORE_FILE_MONITOR_TYPE_NONE;
  41    return 0;
  42 }
  43
  44 void
  45 ecore_file_monitor_shutdown(void)
  46 {
  47    switch (monitor_type)
  48      {
  49       case ECORE_FILE_MONITOR_TYPE_NONE:
  50          break;
  51 #ifdef HAVE_INOTIFY
  52       case ECORE_FILE_MONITOR_TYPE_INOTIFY:
  53          ecore_file_monitor_inotify_shutdown();
  54          break;
  55 #endif
  56 #ifdef HAVE_NOTIFY_WIN32
  57       case ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32:
  58          ecore_file_monitor_win32_shutdown();
  59          break;
  60 #endif
  61 #ifdef HAVE_POLL
  62       case ECORE_FILE_MONITOR_TYPE_POLL:
  63          ecore_file_monitor_poll_shutdown();
  64          break;
  65 #endif
  66      }
  67 }
  68
  69 /**
  70  * Monitor a path using inotify or polling
  71  * @param  path The path to monitor
  72  * @param  func The function to call on changes
  73  * @param  data The data passed to func
  74  * @return An Ecore_File_Monitor pointer or NULL on failure
  75  */
  76 EAPI Ecore_File_Monitor *
  77 ecore_file_monitor_add(const char *path,
  78                        void      (*func) (void               *data,
  79                                           Ecore_File_Monitor *em,
  80                                           Ecore_File_Event    event,
  81                                           const char         *path),
  82                        void       *data)
  83 {
  84    switch (monitor_type)
  85      {
  86       case ECORE_FILE_MONITOR_TYPE_NONE:
  87          return NULL;
  88 #ifdef HAVE_INOTIFY
  89       case ECORE_FILE_MONITOR_TYPE_INOTIFY:
  90          return ecore_file_monitor_inotify_add(path, func, data);
  91 #endif
  92 #ifdef HAVE_NOTIFY_WIN32
  93       case ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32:
  94          return ecore_file_monitor_win32_add(path, func, data);
  95 #endif
  96 #ifdef HAVE_POLL
  97       case ECORE_FILE_MONITOR_TYPE_POLL:
  98          return ecore_file_monitor_poll_add(path, func, data);
  99 #endif
 100      }
 101    return NULL;
 102 }
 103
 104 /**
 105  * Stop monitoring a path
 106  * @param  em The Ecore_File_Monitor to stop
 107  */
 108 EAPI void
 109 ecore_file_monitor_del(Ecore_File_Monitor *em)
 110 {
 111    switch (monitor_type)
 112      {
 113       case ECORE_FILE_MONITOR_TYPE_NONE:
 114          break;
 115 #ifdef HAVE_INOTIFY
 116       case ECORE_FILE_MONITOR_TYPE_INOTIFY:
 117          ecore_file_monitor_inotify_del(em);
 118          break;
 119 #endif
 120 #ifdef HAVE_NOTIFY_WIN32
 121       case ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32:
 122          ecore_file_monitor_win32_del(em);
 123          break;
 124 #endif
 125 #ifdef HAVE_POLL
 126       case ECORE_FILE_MONITOR_TYPE_POLL:
 127          ecore_file_monitor_poll_del(em);
 128          break;
 129 #endif
 130      }
 131 }
 132
 133 /**
 134  * Get the monitored path
 135  * @param  em The Ecore_File_Monitor to query
 136  * @return The path that is monitored by @p em
 137  */
 138 EAPI const char *
 139 ecore_file_monitor_path_get(Ecore_File_Monitor *em)
 140 {
 141    return em->path;
 142 }