Added implementation of the functions in fs_index.h.

Commented system_time() in time.c - it's already implemented in atomic.S (not
that it would belong there).
Fixed linking of rewind.c
Added syscalls for the index functions.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1565 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/libroot/os/Jamfile

@@ -4,6 +4,7 @@ KernelObjects
 	<$(SOURCE_GRIST)>area.c
 	<$(SOURCE_GRIST)>debug.c
 	<$(SOURCE_GRIST)>fs_attr.c
+	<$(SOURCE_GRIST)>fs_index.c
 	<$(SOURCE_GRIST)>port.c
 	<$(SOURCE_GRIST)>sem.c
 	<$(SOURCE_GRIST)>systeminfo.c

src/kernel/libroot/os/fs_index.c

@@ -0,0 +1,122 @@
+/* 
+** Copyright 2002, Axel Dörfler, [email protected]. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include <fs_index.h>
+
+#include <stdlib.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "syscalls.h"
+
+
+#define RETURN_AND_SET_ERRNO(status) \
+	{ \
+		if (status < 0) { \
+			errno = status; \
+			return -1; \
+		} \
+		return status; \
+	}
+
+// for the DIR structure
+#define BUFFER_SIZE 2048
+
+
+int
+fs_create_index(dev_t device, const char *name, uint32 type, uint32 flags)
+{
+	status_t status = sys_create_index(device, name, type, flags);
+
+	RETURN_AND_SET_ERRNO(status);
+}
+
+
+int 
+fs_remove_index(dev_t device, const char *name)
+{
+	status_t status = sys_remove_index(device, name);
+
+	RETURN_AND_SET_ERRNO(status);
+}
+
+
+int 
+fs_stat_index(dev_t device, const char *name, struct index_info *indexInfo)
+{
+	struct stat stat;
+
+	status_t status = sys_read_index_stat(device, name, &stat);
+	if (status == B_OK) {
+		indexInfo->type = stat.st_type;
+		indexInfo->size = stat.st_size;
+		indexInfo->modification_time = stat.st_mtime;
+		indexInfo->creation_time = stat.st_crtime;
+		indexInfo->uid = stat.st_uid;
+		indexInfo->gid = stat.st_gid;
+	}
+
+	RETURN_AND_SET_ERRNO(status);
+}
+
+
+DIR *
+fs_open_index_dir(dev_t device)
+{
+	DIR *dir;
+
+	int fd = sys_open_index_dir(device);
+	if (fd < 0) {
+		errno = fd;
+		return NULL;
+	}
+
+	/* allocate the memory for the DIR structure */
+	if ((dir = (DIR *)malloc(sizeof(DIR) + BUFFER_SIZE)) == NULL) {
+		errno = B_NO_MEMORY;
+		sys_close(fd);
+		return NULL;
+	}
+
+	dir->fd = fd;
+
+	return dir;
+}
+
+
+int 
+fs_close_index_dir(DIR *dir)
+{
+	int status = sys_close(dir->fd);
+
+	free(dir);
+
+	RETURN_AND_SET_ERRNO(status);
+}
+
+
+struct dirent *
+fs_read_index_dir(DIR *dir)
+{
+	ssize_t count = sys_read_dir(dir->fd, &dir->ent, BUFFER_SIZE, 1);
+	if (count <= 0) {
+		if (count < 0)
+			errno = count;
+		return NULL;
+	}
+
+	return &dir->ent;
+}
+
+
+void 
+fs_rewind_index_dir(DIR *dir)
+{
+	int status = sys_rewind_dir(dir->fd);
+	if (status < 0)
+		errno = status;
+}
+

src/kernel/libroot/os/syscalls.S

@@ -72,6 +72,12 @@ SYSCALL3(sys_open_attr, 99)
 SYSCALL2(sys_remove_attr, 101)
 SYSCALL4(sys_rename_attr, 102)
 
+/* VFS index calls */
+SYSCALL1(sys_open_index_dir, 106)
+SYSCALL4(sys_create_index, 107)
+SYSCALL3(sys_read_index_stat, 108)
+SYSCALL2(sys_remove_index, 109)
+
 /* semaphore calls */
 SYSCALL2(sys_create_sem, 18)
 SYSCALL1(sys_delete_sem, 19)

src/kernel/libroot/os/time.c

@@ -39,12 +39,15 @@ set_timezone(char *timezone)
 }
 
 
+/*
+// ToDo: currently defined in atomic.S - but should be in its own file time.S
 bigtime_t
 system_time(void)
 {
-	/* time since booting in microseconds */
+	// time since booting in microseconds
 	return sys_system_time();
 }
+*/
 
 
 bigtime_t

src/kernel/libroot/posix/stdio/rewind.c

@@ -34,18 +34,15 @@
  * SUCH DAMAGE.
  */
 
-#if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$OpenBSD: rewind.c,v 1.2 1996/08/19 08:33:02 tholo Exp $";
-#endif /* LIBC_SCCS and not lint */
-
 #include <errno.h>
 #include <stdio.h>
 
+
 void
 rewind(fp)
 	register FILE *fp;
 {
 	(void) fseek(fp, 0L, SEEK_SET);
-	clearerr(fp);
+	//clearerr(fp);
 	errno = 0;      /* not required, but seems reasonable */
 }