2 * filewatcher.c: File System Watcher internal calls
5 * Gonzalo Paniagua Javier (gonzalo@ximian.com)
7 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
14 #include <mono/metadata/appdomain.h>
15 #include <mono/metadata/exception.h>
16 #include <mono/metadata/filewatcher.h>
17 #include <mono/metadata/marshal.h>
18 #include <mono/utils/mono-dl.h>
19 #include <mono/utils/mono-io-portability.h>
24 * We use the managed watcher on windows, so the code inside this #if is never used
27 ves_icall_System_IO_FSW_SupportsFSW (void)
33 ves_icall_System_IO_FAMW_InternalFAMNextEvent (gpointer conn,
34 MonoString **filename,
43 static int (*FAMNextEvent) (gpointer, gpointer);
46 ves_icall_System_IO_FSW_SupportsFSW (void)
52 int lib_used = 4; /* gamin */
59 inotify_instance = ves_icall_System_IO_InotifyWatcher_GetInotifyInstance ();
60 if (inotify_instance != -1) {
61 close (inotify_instance);
62 return 5; /* inotify */
66 fam_module = mono_dl_open ("libgamin-1.so", MONO_DL_LAZY, NULL);
67 if (fam_module == NULL) {
68 lib_used = 2; /* FAM */
70 fam_module = mono_dl_open ("libfam.so", MONO_DL_LAZY, NULL);
73 if (fam_module == NULL)
76 err = mono_dl_symbol (fam_module, "FAMNextEvent", (gpointer *) &FAMNextEvent);
78 if (FAMNextEvent == NULL)
85 /* Almost copied from fam.h. Weird, I know */
90 typedef struct FAMEvent {
94 gchar filename [PATH_MAX];
100 ves_icall_System_IO_FAMW_InternalFAMNextEvent (gpointer conn,
101 MonoString **filename,
109 if (FAMNextEvent (conn, &ev) == 1) {
110 *filename = mono_string_new (mono_domain_get (), ev.filename);
112 *reqnum = ev.fr.reqnum;
120 #if defined(__linux__) && defined(HAVE_SYS_SYSCALL_H) && !defined(__NR_inotify_init)
121 # if defined(__i386__)
122 # define __NR_inotify_init 291
123 # elif defined(__x86_64__)
124 # define __NR_inotify_init 253
125 # elif defined(__ppc__) || defined(__powerpc__) || defined(__powerpc64__)
126 # define __NR_inotify_init 275
127 # elif defined (__s390__) || defined (__s390x__)
128 # define __NR_inotify_init 284
129 # elif defined(__sparc__) || defined (__sparc64__)
130 # define __NR_inotify_init 151
131 # elif defined (__ia64__)
132 # define __NR_inotify_init 1277
133 # elif defined (__arm__)
134 # define __NR_inotify_init 316
135 # elif defined(__alpha__)
136 # define __NR_inotify_init 444
138 #ifdef __NR_inotify_init
139 # ifndef __NR_inotify_add_watch
140 # define __NR_inotify_add_watch (__NR_inotify_init + 1)
142 # ifndef __NR_inotify_rm_watch
143 # define __NR_inotify_rm_watch (__NR_inotify_init + 2)
148 #if !defined(__linux__) || !defined(__NR_inotify_init)
149 int ves_icall_System_IO_InotifyWatcher_GetInotifyInstance ()
154 int ves_icall_System_IO_InotifyWatcher_AddWatch (int fd, MonoString *directory, gint32 mask)
159 int ves_icall_System_IO_InotifyWatcher_RemoveWatch (int fd, gint32 watch_descriptor)
167 ves_icall_System_IO_InotifyWatcher_GetInotifyInstance ()
169 return syscall (__NR_inotify_init);
173 ves_icall_System_IO_InotifyWatcher_AddWatch (int fd, MonoString *name, gint32 mask)
183 str = mono_string_to_utf8 (name);
184 path = mono_portability_find_file (str, TRUE);
188 retval = syscall (__NR_inotify_add_watch, fd, path, mask);
192 errno = ERROR_ACCESS_DENIED;
195 errno = ERROR_INVALID_HANDLE;
198 errno = ERROR_INVALID_ACCESS;
201 errno = ERROR_INVALID_DATA;
204 errno = ERROR_NOT_ENOUGH_MEMORY;
207 errno = ERROR_TOO_MANY_OPEN_FILES;
210 errno = ERROR_GEN_FAILURE;
213 mono_marshal_set_last_error ();
222 ves_icall_System_IO_InotifyWatcher_RemoveWatch (int fd, gint32 watch_descriptor)
224 return syscall (__NR_inotify_rm_watch, fd, watch_descriptor);