diff options
Diffstat (limited to 'inotail.c')
| -rw-r--r-- | inotail.c | 39 |
1 files changed, 24 insertions, 15 deletions
@@ -47,6 +47,9 @@ static char verbose = 0; /* Tailing relative to begin or end of file */ static char from_begin = 0; +/* Number of ignored files */ +static int n_ignored = 0; + /* Command line options */ static const struct option long_opts[] = { {"bytes", required_argument, NULL, 'c'}, @@ -82,10 +85,10 @@ static void setup_file(struct file_struct *f) f->i_watch = -1; } -static int ignore_file(struct file_struct *f, int n_ignored) +static void ignore_file(struct file_struct *f) { f->ignore = 1; - return ++n_ignored; + n_ignored++; } static inline char *pretty_name(char *filename) @@ -184,7 +187,7 @@ static off_t lines_to_offset(struct file_struct *f, unsigned int n_lines) return lines_to_offset_from_end(f, n_lines); } -static inline off_t bytes_to_offset(struct file_struct *f, unsigned int n_bytes) +static off_t bytes_to_offset(struct file_struct *f, unsigned int n_bytes) { /* tail everything for 'inotail -c +0' */ if (from_begin && n_bytes == 0) @@ -274,8 +277,10 @@ err: return ret; } -static int handle_inotify_event(struct inotify_event *inev, struct file_struct *f, int n_ignored) +static int handle_inotify_event(struct inotify_event *inev, struct file_struct *f) { + int ret = 0; + if (inev->mask & IN_MODIFY) { int rc; off_t offset; @@ -291,6 +296,7 @@ static int handle_inotify_event(struct inotify_event *inev, struct file_struct * #endif if (fstat(f->fd, &finfo) < 0) { fprintf(stderr, "Error: Could not stat file '%s' (%s)\n", f->name, strerror(errno)); + ret = -1; goto ignore; } @@ -307,26 +313,30 @@ static int handle_inotify_event(struct inotify_event *inev, struct file_struct * #if 0 close(f->fd); #endif - return n_ignored; + return ret; } else if (inev->mask & IN_DELETE_SELF) { fprintf(stderr, "File '%s' deleted.\n", f->name); } else if (inev->mask & IN_MOVE_SELF) { fprintf(stderr, "File '%s' moved.\n", f->name); - return n_ignored; + return 0; } else if (inev->mask & IN_UNMOUNT) { fprintf(stderr, "Device containing file '%s' unmounted.\n", f->name); } ignore: - if (close(f->fd) < 0) + if (close(f->fd) < 0) { fprintf(stderr, "Error: Could not close file '%s' (%s)\n", f->name, strerror(errno)); + ret = -1; + } + + ignore_file(f); - return ignore_file(f, n_ignored); + return ret; } static int watch_files(struct file_struct *files, int n_files) { - int ifd, i, n_ignored = 0; + int ifd, i; unsigned buflen = 2 * n_files * sizeof(struct inotify_event); struct inotify_event *inev; char *buf; @@ -344,10 +354,9 @@ static int watch_files(struct file_struct *files, int n_files) if (files[i].i_watch < 0) { fprintf(stderr, "Error: Could not create inotify watch on file '%s' (%s)\n", files[i].name, strerror(errno)); - n_ignored = ignore_file(&files[i], n_ignored); + ignore_file(&files[i]); } - } else - n_ignored++; + } } buf = malloc(buflen); @@ -373,7 +382,7 @@ static int watch_files(struct file_struct *files, int n_files) if (unlikely(!f)) break; - n_ignored = handle_inotify_event(inev, f, n_ignored); + handle_inotify_event(inev, f); len -= sizeof(struct inotify_event) + inev->len; inev = (struct inotify_event *) ((char *) inev + sizeof(struct inotify_event) + inev->len); } @@ -382,7 +391,7 @@ static int watch_files(struct file_struct *files, int n_files) free(buf); close(ifd); - return n_ignored; + return -1; } int main(int argc, char **argv) @@ -455,7 +464,7 @@ int main(int argc, char **argv) setup_file(&files[i]); ret = tail_file(&files[i], n_units, mode, forever); if (ret < 0) - ignore_file(&files[i], 0); + ignore_file(&files[i]); } if (forever) |