Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 60 insertions, 0 deletions

diff --git a/mpg123_artsplugin/mpg123/xfermem.h b/mpg123_artsplugin/mpg123/xfermem.h
new file mode 100644
index 00000000..ae7e5afd
--- /dev/null
+++ b/mpg123_artsplugin/mpg123/xfermem.h
@@ -0,0 +1,60 @@
+/*
+ *   xfermem.h
+ *
+ *   Oliver Fromme  <oliver.fromme@heim3.tu-clausthal.de>
+ *   Sat Mar 29 04:41:34 MET 1997
+ *
+ *   This is a stand-alone module which implements a unidirectional,
+ *   fast pipe using mmap().  Its primary use is to transfer large
+ *   amounts of data from a parent process to its child process,
+ *   with a buffer in between which decouples blocking conditions
+ *   on both sides.  Control information is transferred between the
+ *   processes through a socketpair.  See xftest.c for an example on
+ *   how to use this module.
+ */
+
+#ifndef TRUE
+#define FALSE 0
+#define TRUE  1
+#endif
+
+typedef struct {
+	int freeindex;	/* [W] next free index */
+	int readindex;	/* [R] next index to read */
+	int fd[2];
+	int wakeme[2];
+	byte *data;
+	byte *metadata;
+	int size;
+	int metasize;
+	int buf[3];
+} txfermem;
+/*
+ *   [W] -- May be written to by the writing process only!
+ *   [R] -- May be written to by the reading process only!
+ *   All other entries are initialized once.
+ */
+
+void xfermem_init (txfermem **xf, int bufsize, int msize,int skipbuf);
+void xfermem_init_writer (txfermem *xf);
+void xfermem_init_reader (txfermem *xf);
+
+int  xfermem_write (txfermem *xf, byte *data, int count);
+int  xfermem_read  (txfermem *xf, byte *data, int count);
+
+int xfermem_get_freespace (txfermem *xf);
+int xfermem_get_usedspace (txfermem *xf);
+#define XF_CMD_WAKEUP_INFO  0x04
+#define XF_CMD_WAKEUP    0x02
+#define XF_CMD_TERMINATE 0x03
+#define XF_WRITER 0
+#define XF_READER 1
+int xfermem_getcmd (int fd, int block);
+int xfermem_putcmd (int fd, byte cmd);
+int xfermem_block (int fd, txfermem *xf);
+
+void xfermem_done (txfermem *xf);
+#define xfermem_done_writer xfermem_init_reader
+#define xfermem_done_reader xfermem_init_writer
+
+/* EOF */