src/lib/ecore_file/ecore_file_monitor.c

   1 /*
   2  * vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
   3  */
   4
   5 #ifdef HAVE_CONFIG_H
   6 # include <config.h>
   7 #endif
   8
   9 #include "ecore_file_private.h"
  10
  11 typedef enum {
  12      ECORE_FILE_MONITOR_TYPE_NONE,
  13 #ifdef HAVE_INOTIFY
  14      ECORE_FILE_MONITOR_TYPE_INOTIFY,
  15 #endif
  16 #ifdef HAVE_NOTIFY_WIN32
  17      ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32,
  18 #endif
  19 #ifdef HAVE_POLL
  20      ECORE_FILE_MONITOR_TYPE_POLL
  21 #endif
  22 } Ecore_File_Monitor_Type;
  23
  24 static Ecore_File_Monitor_Type monitor_type = ECORE_FILE_MONITOR_TYPE_NONE;
  25
  26 int
  27 ecore_file_monitor_init(void)
  28 {
  29 #ifdef HAVE_INOTIFY
  30    monitor_type = ECORE_FILE_MONITOR_TYPE_INOTIFY;
  31    if (ecore_file_monitor_inotify_init())
  32      return 1;
  33 #endif
  34 #ifdef HAVE_NOTIFY_WIN32
  35    monitor_type = ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32;
  36    if (ecore_file_monitor_win32_init())
  37      return 1;
  38 #endif
  39 #ifdef HAVE_POLL
  40    monitor_type = ECORE_FILE_MONITOR_TYPE_POLL;
  41    if (ecore_file_monitor_poll_init())
  42      return 1;
  43 #endif
  44    monitor_type = ECORE_FILE_MONITOR_TYPE_NONE;
  45    return 0;
  46 }
  47
  48 void
  49 ecore_file_monitor_shutdown(void)
  50 {
  51    switch (monitor_type)
  52      {
  53       case ECORE_FILE_MONITOR_TYPE_NONE:
  54          break;
  55 #ifdef HAVE_INOTIFY
  56       case ECORE_FILE_MONITOR_TYPE_INOTIFY:
  57          ecore_file_monitor_inotify_shutdown();
  58          break;
  59 #endif
  60 #ifdef HAVE_NOTIFY_WIN32
  61       case ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32:
  62          ecore_file_monitor_win32_shutdown();
  63          break;
  64 #endif
  65 #ifdef HAVE_POLL
  66       case ECORE_FILE_MONITOR_TYPE_POLL:
  67          ecore_file_monitor_poll_shutdown();
  68          break;
  69 #endif
  70      }
  71 }
  72
  73 /**
  74  * Monitor a path using inotify or polling
  75  * @param  path The path to monitor
  76  * @param  func The function to call on changes
  77  * @param  data The data passed to func
  78  * @return An Ecore_File_Monitor pointer or NULL on failure
  79  */
  80 EAPI Ecore_File_Monitor *
  81 ecore_file_monitor_add(const char *path,
  82                        void      (*func) (void               *data,
  83                                           Ecore_File_Monitor *em,
  84                                           Ecore_File_Event    event,
  85                                           const char         *path),
  86                        void       *data)
  87 {
  88    switch (monitor_type)
  89      {
  90       case ECORE_FILE_MONITOR_TYPE_NONE:
  91          return NULL;
  92 #ifdef HAVE_INOTIFY
  93       case ECORE_FILE_MONITOR_TYPE_INOTIFY:
  94          return ecore_file_monitor_inotify_add(path, func, data);
  95 #endif
  96 #ifdef HAVE_NOTIFY_WIN32
  97       case ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32:
  98          return ecore_file_monitor_win32_add(path, func, data);
  99 #endif
 100 #ifdef HAVE_POLL
 101       case ECORE_FILE_MONITOR_TYPE_POLL:
 102          return ecore_file_monitor_poll_add(path, func, data);
 103 #endif
 104      }
 105    return NULL;
 106 }
 107
 108 /**
 109  * Stop monitoring a path
 110  * @param  em The Ecore_File_Monitor to stop
 111  */
 112 EAPI void
 113 ecore_file_monitor_del(Ecore_File_Monitor *em)
 114 {
 115    switch (monitor_type)
 116      {
 117       case ECORE_FILE_MONITOR_TYPE_NONE:
 118          break;
 119 #ifdef HAVE_INOTIFY
 120       case ECORE_FILE_MONITOR_TYPE_INOTIFY:
 121          ecore_file_monitor_inotify_del(em);
 122          break;
 123 #endif
 124 #ifdef HAVE_NOTIFY_WIN32
 125       case ECORE_FILE_MONITOR_TYPE_NOTIFY_WIN32:
 126          ecore_file_monitor_win32_del(em);
 127          break;
 128 #endif
 129 #ifdef HAVE_POLL
 130       case ECORE_FILE_MONITOR_TYPE_POLL:
 131          ecore_file_monitor_poll_del(em);
 132          break;
 133 #endif
 134      }
 135 }
 136
 137 /**
 138  * Get the monitored path
 139  * @param  em The Ecore_File_Monitor to query
 140  * @return The path that is monitored by @p em
 141  */
 142 EAPI const char *
 143 ecore_file_monitor_path_get(Ecore_File_Monitor *em)
 144 {
 145    return em->path;
 146 }