some header files to be R5 compatible

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1617 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-10-23 13:54:44 +00:00
parent 16fe4511e7
commit d734a8ce5a
39 changed files with 4652 additions and 0 deletions
@@ -0,0 +1,44 @@
+/*******************************************************************************
+/
+/	File:		fs_query.h
+/
+/	Description:	C interface to the BeOS file system query mechanism.
+/
+/	Copyright 1993-98, Be Incorporated, All Rights Reserved.
+/
+*******************************************************************************/
+
+#ifndef _FS_QUERY_H
+#define _FS_QUERY_H
+
+#include <BeBuild.h>
+#include <OS.h>
+#include <dirent.h>
+
+
+/* flags for fs_open_query() */
+
+#define		B_LIVE_QUERY		0x00000001
+
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+
+_IMPEXP_ROOT DIR   	       *fs_open_query(dev_t device, const char *query, uint32 flags);
+_IMPEXP_ROOT DIR           *fs_open_live_query(dev_t device, const char *query,
+								  uint32 flags, port_id port, int32 token);
+_IMPEXP_ROOT int            fs_close_query(DIR *d);
+_IMPEXP_ROOT struct dirent *fs_read_query(DIR *d);
+
+_IMPEXP_ROOT status_t		get_path_for_dirent(struct dirent *dent, char *buf,
+												size_t len);
+
+
+#ifdef  __cplusplus
+}
+#endif
+
+
+#endif /* _FS_QUERY_H */
@@ -0,0 +1,54 @@
+/*****************************************************************************
+
+        File:           scheduler.h
+
+		Description:    Scheduling inquiry functions
+
+        Copyright 1998-, Be Incorporated, All Rights Reserved.
+
+*****************************************************************************/
+
+
+#if !defined(SCHEDULER_H)
+#define SCHEDULER_H
+
+#include <SupportDefs.h>
+#include <OS.h>
+
+/* To get a good thread priority, call suggest_thread_priority() with the following information: */
+/* 'what' is a bit mask describing what you're doing in the thread. */
+/* 'period' is how many times a second your thread needs to run (-1 if you're running continuously.) */
+/* 'jitter' is an estimate (in us) of how much that period can vary, as long as it stays centered on the average. */
+/* 'length' is how long (in us) you expect to run for each invocation. */
+/* "invocation" means, typically, receiving a message, dispatching it, and then returning to reading a message. */
+/* MANIPULATION means both filtering and compression/decompression. */
+/* PLAYBACK and RECORDING means threads feeding/reading ACTUAL HARDWARE ONLY. */
+/* 0 means don't care */
+enum be_task_flags { /* bitmasks for "what" */
+	B_DEFAULT_MEDIA_PRIORITY = 0,
+	B_OFFLINE_PROCESSING = 0x1,
+	B_STATUS_RENDERING = 0x2,		/* can also use this for "preview" type things */
+	B_USER_INPUT_HANDLING = 0x4,
+	B_LIVE_VIDEO_MANIPULATION = 0x8,	/* non-live processing is OFFLINE_PROCESSING */
+	B_VIDEO_PLAYBACK = 0x10,	/* feeding hardware */
+	B_VIDEO_RECORDING = 0x20,	/* grabbing from hardware */
+	B_LIVE_AUDIO_MANIPULATION = 0x40,	/* non-live processing is OFFLINE_PROCESSING */
+	B_AUDIO_PLAYBACK = 0x80,	/* feeding hardware */
+	B_AUDIO_RECORDING = 0x100,	/* grabbing from hardware */
+	B_LIVE_3D_RENDERING = 0x200,		/* non-live rendering is OFFLINE_PROCESSING */
+	B_NUMBER_CRUNCHING = 0x400,
+	B_MIDI_PROCESSING = 0x800
+};
+#if defined(__cplusplus)
+extern "C" {
+_IMPEXP_ROOT int32 suggest_thread_priority(uint32 task_flags = B_DEFAULT_MEDIA_PRIORITY, 
+	int32 period = 0, bigtime_t jitter = 0, bigtime_t length = 0);
+_IMPEXP_ROOT bigtime_t estimate_max_scheduling_latency(thread_id th = -1);	/* default is current thread */
+}
+#else
+_IMPEXP_ROOT int32 suggest_thread_priority(uint32 what, int32 period, bigtime_t jitter, bigtime_t length);
+_IMPEXP_ROOT bigtime_t estimate_max_scheduling_latency(thread_id th);	/* default is current thread */
+#endif
+
+#endif /* SCHEDULER_H */
+