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-rw-r--r--solenv/lockfile/lockfile.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/solenv/lockfile/lockfile.h b/solenv/lockfile/lockfile.h
new file mode 100644
index 000000000..f2f72022f
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+++ b/solenv/lockfile/lockfile.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 1999 Miquel van Smoorenburg
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * On Debian GNU/Linux systems, the complete text of the GNU Library
+ * General Public License can be found in `/usr/doc/copyright/LGPL'.
+ * You can also find a copy on the GNU website at http://www.gnu.org/
+ */
+#ifndef LOCKFILE_H_
+#define LOCKFILE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Prototypes.
+ */
+int lockfile_create(const char *lockfile, int retries, int flags);
+int lockfile_remove(const char *lockfile);
+int lockfile_touch(const char *lockfile);
+int lockfile_check(const char *lockfile, int flags);
+
+/*
+ * Return values for lockfile_create()
+ */
+#define L_SUCCESS 0 /* Lockfile created */
+#define L_NAMELEN 1 /* Recipient name too long */
+#define L_TMPLOCK 2 /* Error creating temp lockfile */
+#define L_TMPWRITE 3 /* Can't write pid into temp lockfile */
+#define L_MAXTRYS 4 /* Failed after max. number of attempts */
+#define L_ERROR 5 /* Unknown error; check errno */
+#define L_MANLOCK 6 /* Cannot set mandatory lock on tempfile */
+#define L_ORPHANED 7 /* Called with L_PPID but parent is gone */
+#define L_RMSTALE 8 /* Failed to remove stale lockfile */
+
+/*
+ * Flag values for lockfile_create()
+ */
+#define L_PID 16 /* Put PID in lockfile */
+#define L_PPID 32 /* Put PPID in lockfile */
+
+/*
+ * Experimental.
+ */
+struct lockargs_s_ {
+ int interval; /* Static interval between retries */
+};
+#define L_INTERVAL_D_ 64 /* Specify consistent retry interval */
+#ifdef LOCKFILE_EXPERIMENTAL
+#define lockargs lockargs_s_
+#define L_INTERVAL L_INTERVAL_D_
+int lockfile_create2(const char *lockfile, int retries,
+ int flags, struct lockargs *args, int args_sz);
+#endif
+
+#ifndef LIB
+int check_sleep(int, int);
+#endif
+int is_maillock(const char *lockfile);
+int lockfile_create_set_tmplock(const char *lockfile, volatile char **tmplock,
+ int retries, int flags, const struct lockargs_s_ *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LOCKFILE_H */