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authorLinus Torvalds <torvalds@athlon.transmeta.com>2002-02-04 20:33:15 -0800
committerLinus Torvalds <torvalds@athlon.transmeta.com>2002-02-04 20:33:15 -0800
commitd40d1af9f0aebf7e108f1dfb66ac5af671bc9719 (patch)
tree7a2518e82986a8eb5b4eb76553df04d8ba6e4642 /include/linux/seq_file.h
parenta8a2069f432c5597bdf9c83ab3045b9ef32ab5e3 (diff)
v2.4.14.2 -> v2.4.14.3
- Alan Cox: more driver merging - Al Viro: make ext2 group allocation more readable
Diffstat (limited to 'include/linux/seq_file.h')
-rw-r--r--include/linux/seq_file.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
new file mode 100644
index 000000000000..1cf66cd69e6c
--- /dev/null
+++ b/include/linux/seq_file.h
@@ -0,0 +1,55 @@
+#ifndef _LINUX_SEQ_FILE_H
+#define _LINUX_SEQ_FILE_H
+#ifdef __KERNEL__
+
+struct seq_operations;
+
+struct seq_file {
+ char *buf;
+ size_t size;
+ size_t from;
+ size_t count;
+ loff_t index;
+ struct semaphore sem;
+ struct seq_operations *op;
+};
+
+struct seq_operations {
+ void * (*start) (struct seq_file *m, loff_t *pos);
+ void (*stop) (struct seq_file *m, void *v);
+ void * (*next) (struct seq_file *m, void *v, loff_t *pos);
+ int (*show) (struct seq_file *m, void *v);
+};
+
+int seq_open(struct file *, struct seq_operations *);
+ssize_t seq_read(struct file *, char *, size_t, loff_t *);
+loff_t seq_lseek(struct file *, loff_t, int);
+int seq_release(struct inode *, struct file *);
+int seq_escape(struct seq_file *, const char *, const char *);
+
+static inline int seq_putc(struct seq_file *m, char c)
+{
+ if (m->count < m->size) {
+ m->buf[m->count++] = c;
+ return 0;
+ }
+ return -1;
+}
+
+static inline int seq_puts(struct seq_file *m, const char *s)
+{
+ int len = strlen(s);
+ if (m->count + len < m->size) {
+ memcpy(m->buf + m->count, s, len);
+ m->count += len;
+ return 0;
+ }
+ m->count = m->size;
+ return -1;
+}
+
+int seq_printf(struct seq_file *, const char *, ...)
+ __attribute__ ((format (printf,2,3)));
+
+#endif
+#endif