-rw-r--r-- | libopie2/opiecore/ofilenotify.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/libopie2/opiecore/ofilenotify.cpp b/libopie2/opiecore/ofilenotify.cpp index 270570e..5f2a1cc 100644 --- a/libopie2/opiecore/ofilenotify.cpp +++ b/libopie2/opiecore/ofilenotify.cpp | |||
@@ -34,97 +34,97 @@ using namespace Opie::Core; | |||
34 | /* QT */ | 34 | /* QT */ |
35 | #include <qobject.h> | 35 | #include <qobject.h> |
36 | #include <qsignal.h> | 36 | #include <qsignal.h> |
37 | #include <qintdict.h> | 37 | #include <qintdict.h> |
38 | #include <qdir.h> | 38 | #include <qdir.h> |
39 | 39 | ||
40 | /* STD */ | 40 | /* STD */ |
41 | #include <sys/types.h> | 41 | #include <sys/types.h> |
42 | #include <sys/stat.h> | 42 | #include <sys/stat.h> |
43 | #include <assert.h> | 43 | #include <assert.h> |
44 | #include <fcntl.h> | 44 | #include <fcntl.h> |
45 | #include <string.h> | 45 | #include <string.h> |
46 | #include <errno.h> | 46 | #include <errno.h> |
47 | #include <unistd.h> | 47 | #include <unistd.h> |
48 | 48 | ||
49 | static QIntDict<OFileNotification> notification_list; | 49 | static QIntDict<OFileNotification> notification_list; |
50 | 50 | ||
51 | namespace Opie { | 51 | namespace Opie { |
52 | namespace Core { | 52 | namespace Core { |
53 | 53 | ||
54 | OFileNotification::OFileNotification( QObject* parent, const char* name ) | 54 | OFileNotification::OFileNotification( QObject* parent, const char* name ) |
55 | :QObject( parent, name ), _active( false ) | 55 | :QObject( parent, name ), _active( false ) |
56 | { | 56 | { |
57 | qDebug( "OFileNotification::OFileNotification()" ); | 57 | qDebug( "OFileNotification::OFileNotification()" ); |
58 | } | 58 | } |
59 | 59 | ||
60 | 60 | ||
61 | OFileNotification::~OFileNotification() | 61 | OFileNotification::~OFileNotification() |
62 | { | 62 | { |
63 | qDebug( "OFileNotification::~OFileNotification()" ); | 63 | qDebug( "OFileNotification::~OFileNotification()" ); |
64 | } | 64 | } |
65 | 65 | ||
66 | 66 | ||
67 | bool OFileNotification::isActive() const | 67 | bool OFileNotification::isActive() const |
68 | { | 68 | { |
69 | return _active; | 69 | return _active; |
70 | } | 70 | } |
71 | 71 | ||
72 | 72 | ||
73 | int OFileNotification::start( const QString& path, bool sshot, OFileNotificationType type ) | 73 | int OFileNotification::start( const QString& path, bool sshot, OFileNotificationType type ) |
74 | { | 74 | { |
75 | _path = QString::null; | 75 | _path = QString::null; |
76 | _fd = 0; | 76 | _fd = 0; |
77 | if ( _active ) stop(); | 77 | if ( _active ) stop(); |
78 | QString dirpath; | 78 | QString dirpath; |
79 | 79 | ||
80 | // check if path exists and whether it is a file or a directory, if it exists at all | 80 | // check if path exists and whether it is a file or a directory, if it exists at all |
81 | int result = ::stat( (const char*) path, &_stat ); | 81 | int result = ::stat( (const char*) path, &_stat ); |
82 | if ( result == -1 ) | 82 | if ( !(type & Create) && result == -1 ) |
83 | { | 83 | { |
84 | qWarning( "OFileNotification::start(): Can't stat '%s': %s.", (const char*) path, strerror( errno ) ); | 84 | qWarning( "OFileNotification::start(): Can't stat '%s': %s.", (const char*) path, strerror( errno ) ); |
85 | return -1; | 85 | return -1; |
86 | } | 86 | } |
87 | 87 | ||
88 | // if it is not a directory, we need to find out in which directory the file is | 88 | // if it is not a directory, we need to find out in which directory the file is |
89 | bool isDirectory = S_ISDIR( _stat.st_mode ); | 89 | bool isDirectory = S_ISDIR( _stat.st_mode ); |
90 | if ( !isDirectory ) | 90 | if ( !isDirectory ) |
91 | { | 91 | { |
92 | int slashpos; | 92 | int slashpos; |
93 | slashpos = path.findRev( '/' ); | 93 | slashpos = path.findRev( '/' ); |
94 | if ( slashpos > 0 ) | 94 | if ( slashpos > 0 ) |
95 | { | 95 | { |
96 | _path = path; | 96 | _path = path; |
97 | dirpath = path.left( slashpos ); | 97 | dirpath = path.left( slashpos ); |
98 | } | 98 | } |
99 | } | 99 | } |
100 | else /* isDirectory */ | 100 | else /* isDirectory */ |
101 | { | 101 | { |
102 | qWarning( "FIXME FIXME FIXME = Directory Notification Not Yet Implemented!" ); | 102 | qWarning( "FIXME FIXME FIXME = Directory Notification Not Yet Implemented!" ); |
103 | _path = path; | 103 | _path = path; |
104 | dirpath = path; | 104 | dirpath = path; |
105 | assert( 0 ); | 105 | assert( 0 ); |
106 | } | 106 | } |
107 | 107 | ||
108 | int fd = ::open( (const char*) dirpath, O_RDONLY ); | 108 | int fd = ::open( (const char*) dirpath, O_RDONLY ); |
109 | if ( fd != -1 ) | 109 | if ( fd != -1 ) |
110 | { | 110 | { |
111 | if ( notification_list.isEmpty() ) | 111 | if ( notification_list.isEmpty() ) |
112 | { | 112 | { |
113 | OFileNotification::registerSignalHandler(); | 113 | OFileNotification::registerSignalHandler(); |
114 | } | 114 | } |
115 | 115 | ||
116 | result = ::fcntl( fd, F_SETSIG, SIGRTMIN ); | 116 | result = ::fcntl( fd, F_SETSIG, SIGRTMIN ); |
117 | if ( result == -1 ) | 117 | if ( result == -1 ) |
118 | { | 118 | { |
119 | qWarning( "OFileNotification::start(): Can't subscribe to '%s': %s.", (const char*) dirpath, strerror( errno ) ); | 119 | qWarning( "OFileNotification::start(): Can't subscribe to '%s': %s.", (const char*) dirpath, strerror( errno ) ); |
120 | return -1; | 120 | return -1; |
121 | } | 121 | } |
122 | if ( !sshot ) (int) type |= (int) Multi; | 122 | if ( !sshot ) (int) type |= (int) Multi; |
123 | result = ::fcntl( fd, F_NOTIFY, type ); | 123 | result = ::fcntl( fd, F_NOTIFY, type ); |
124 | if ( result == -1 ) | 124 | if ( result == -1 ) |
125 | { | 125 | { |
126 | qWarning( "OFileNotification::start(): Can't subscribe to '%s': %s.", (const char*) dirpath, strerror( errno ) ); | 126 | qWarning( "OFileNotification::start(): Can't subscribe to '%s': %s.", (const char*) dirpath, strerror( errno ) ); |
127 | return -1; | 127 | return -1; |
128 | } | 128 | } |
129 | qDebug( "OFileNotification::start(): Subscribed for changes to %s (fd = %d, mask = 0x%0x)", (const char*) dirpath, fd, type ); | 129 | qDebug( "OFileNotification::start(): Subscribed for changes to %s (fd = %d, mask = 0x%0x)", (const char*) dirpath, fd, type ); |
130 | notification_list.insert( fd, this ); | 130 | notification_list.insert( fd, this ); |
@@ -157,101 +157,108 @@ void OFileNotification::stop() | |||
157 | ::close( _fd ); | 157 | ::close( _fd ); |
158 | _type = Single; | 158 | _type = Single; |
159 | _path = QString::null; | 159 | _path = QString::null; |
160 | _fd = 0; | 160 | _fd = 0; |
161 | _active = false; | 161 | _active = false; |
162 | } | 162 | } |
163 | } | 163 | } |
164 | 164 | ||
165 | 165 | ||
166 | OFileNotificationType OFileNotification::type() const | 166 | OFileNotificationType OFileNotification::type() const |
167 | { | 167 | { |
168 | return _type; | 168 | return _type; |
169 | } | 169 | } |
170 | 170 | ||
171 | 171 | ||
172 | QString OFileNotification::path() const | 172 | QString OFileNotification::path() const |
173 | { | 173 | { |
174 | return _path; | 174 | return _path; |
175 | } | 175 | } |
176 | 176 | ||
177 | 177 | ||
178 | int OFileNotification::fileno() const | 178 | int OFileNotification::fileno() const |
179 | { | 179 | { |
180 | return _fd; | 180 | return _fd; |
181 | } | 181 | } |
182 | 182 | ||
183 | 183 | ||
184 | bool OFileNotification::activate() | 184 | bool OFileNotification::activate() |
185 | { | 185 | { |
186 | if ( hasChanged() ) | 186 | if ( hasChanged() ) |
187 | { | 187 | { |
188 | emit triggered(); | 188 | emit triggered(); |
189 | _signal.activate(); | 189 | _signal.activate(); |
190 | return true; | 190 | return true; |
191 | } | 191 | } |
192 | else | 192 | else |
193 | return false; | 193 | return false; |
194 | } | 194 | } |
195 | 195 | ||
196 | 196 | ||
197 | bool OFileNotification::hasChanged() | 197 | bool OFileNotification::hasChanged() |
198 | { | 198 | { |
199 | bool c = false; | 199 | bool c = false; |
200 | 200 | ||
201 | struct stat newstat; | 201 | struct stat newstat; |
202 | ::memset( &newstat, 0, sizeof newstat ); | 202 | ::memset( &newstat, 0, sizeof newstat ); |
203 | int result = ::stat( _path, &newstat ); // may fail if file has been renamed or deleted. that doesn't matter :) | 203 | int result = ::stat( _path, &newstat ); // may fail if file has been renamed or deleted. that doesn't matter :) |
204 | 204 | ||
205 | qDebug( "result of newstat call is %d (%s=%d)", result, strerror( errno ), errno ); | 205 | qDebug( "result of newstat call is %d (%s=%d)", result, result == -1 ? strerror( errno ) : "success", errno ); |
206 | qDebug( "stat.atime = %0lx, newstat.atime = %0lx", (long)_stat.st_atime, (long)newstat.st_atime ); | 206 | qDebug( "stat.atime = %0lx, newstat.atime = %0lx", (long)_stat.st_atime, (long)newstat.st_atime ); |
207 | qDebug( "stat.mtime = %0lx, newstat.mtime = %0lx", (long)_stat.st_mtime, (long)newstat.st_mtime ); | 207 | qDebug( "stat.mtime = %0lx, newstat.mtime = %0lx", (long)_stat.st_mtime, (long)newstat.st_mtime ); |
208 | qDebug( "stat.ctime = %0lx, newstat.ctime = %0lx", (long)_stat.st_ctime, (long)newstat.st_ctime ); | 208 | qDebug( "stat.ctime = %0lx, newstat.ctime = %0lx", (long)_stat.st_ctime, (long)newstat.st_ctime ); |
209 | 209 | ||
210 | if ( !c && (_type & Create) && | ||
211 | (long)_stat.st_atime == 0 && (long)_stat.st_mtime == 0 && (long)_stat.st_ctime == 0 && | ||
212 | (long)newstat.st_atime > 0 && (long)newstat.st_mtime > 0 && (long)newstat.st_ctime > 0) | ||
213 | { | ||
214 | qDebug( "OFileNotification::hasChanged(): file has been created" ); | ||
215 | c = true; | ||
216 | } | ||
210 | if ( !c && (_type & (Delete|Rename)) && (long)newstat.st_atime == 0 && (long)newstat.st_mtime == 0 && (long)newstat.st_ctime == 0) | 217 | if ( !c && (_type & (Delete|Rename)) && (long)newstat.st_atime == 0 && (long)newstat.st_mtime == 0 && (long)newstat.st_ctime == 0) |
211 | { | 218 | { |
212 | qDebug( "OFileNotification::hasChanged(): file has been deleted or renamed" ); | 219 | qDebug( "OFileNotification::hasChanged(): file has been deleted or renamed" ); |
213 | c = true; | 220 | c = true; |
214 | } | 221 | } |
215 | if ( !c && (_type & Access) && (long)_stat.st_atime < (long)newstat.st_atime ) | 222 | if ( !c && (_type & Access) && (long)_stat.st_atime < (long)newstat.st_atime ) |
216 | { | 223 | { |
217 | qDebug( "OFileNotification::hasChanged(): atime changed" ); | 224 | qDebug( "OFileNotification::hasChanged(): atime changed" ); |
218 | c = true; | 225 | c = true; |
219 | } | 226 | } |
220 | if ( !c && (_type & Modify) && (long)_stat.st_mtime < (long)newstat.st_mtime ) | 227 | if ( !c && (_type & Modify) && (long)_stat.st_mtime < (long)newstat.st_mtime ) |
221 | { | 228 | { |
222 | qDebug( "OFileNotification::hasChanged(): mtime changed" ); | 229 | qDebug( "OFileNotification::hasChanged(): mtime changed" ); |
223 | c = true; | 230 | c = true; |
224 | } | 231 | } |
225 | if ( !c && (_type & Attrib) && (long)_stat.st_ctime < (long)newstat.st_ctime ) | 232 | if ( !c && (_type & Attrib) && (long)_stat.st_ctime < (long)newstat.st_ctime ) |
226 | { | 233 | { |
227 | qDebug( "OFileNotification::hasChanged(): ctime changed" ); | 234 | qDebug( "OFileNotification::hasChanged(): ctime changed" ); |
228 | c = true; | 235 | c = true; |
229 | } | 236 | } |
230 | 237 | ||
231 | return c; | 238 | return c; |
232 | } | 239 | } |
233 | 240 | ||
234 | 241 | ||
235 | void OFileNotification::singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type ) | 242 | void OFileNotification::singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type ) |
236 | { | 243 | { |
237 | OFileNotification* ofn = new OFileNotification(); | 244 | OFileNotification* ofn = new OFileNotification(); |
238 | ofn->_signal.connect( receiver, member ); | 245 | ofn->_signal.connect( receiver, member ); |
239 | ofn->start( path, true, type ); | 246 | ofn->start( path, true, type ); |
240 | } | 247 | } |
241 | 248 | ||
242 | 249 | ||
243 | void OFileNotification::__signalHandler( int sig, siginfo_t *si, void *data ) | 250 | void OFileNotification::__signalHandler( int sig, siginfo_t *si, void *data ) |
244 | { | 251 | { |
245 | qWarning( "OFileNotification::__signalHandler(): reached." ); | 252 | qWarning( "OFileNotification::__signalHandler(): reached." ); |
246 | int fd = si->si_fd; | 253 | int fd = si->si_fd; |
247 | OFileNotification* fn = notification_list[fd]; | 254 | OFileNotification* fn = notification_list[fd]; |
248 | if ( fn ) | 255 | if ( fn ) |
249 | { | 256 | { |
250 | // check if it really was the file (dnotify triggers on directory granularity, not file granularity) | 257 | // check if it really was the file (dnotify triggers on directory granularity, not file granularity) |
251 | if ( !fn->activate() ) | 258 | if ( !fn->activate() ) |
252 | { | 259 | { |
253 | qDebug( "OFileNotification::__signalHandler(): false alarm ;) Restarting the trigger (if it was single)..." ); | 260 | qDebug( "OFileNotification::__signalHandler(): false alarm ;) Restarting the trigger (if it was single)..." ); |
254 | if ( !(fn->type() & Multi ) ) | 261 | if ( !(fn->type() & Multi ) ) |
255 | { | 262 | { |
256 | int result = ::fcntl( fn->fileno(), F_NOTIFY, fn->type() ); | 263 | int result = ::fcntl( fn->fileno(), F_NOTIFY, fn->type() ); |
257 | if ( result == -1 ) | 264 | if ( result == -1 ) |