X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Fvfs%2Fmain.c;h=c0c37e1d5feeb4200f931085bd9d9e76a3f02add;hb=ea5bf1c03b31db64014d0aa770fa6c326d729efa;hp=3d1f8e58201aa715afaa38a3e655b58c0f13e4e9;hpb=466eda7c917791866a29c253c6c22197faf41bf7;p=tpg%2Facess2.git

diff --git a/Kernel/vfs/main.c b/Kernel/vfs/main.c
index 3d1f8e58..c0c37e1d 100644
--- a/Kernel/vfs/main.c
+++ b/Kernel/vfs/main.c
@@ -2,7 +2,8 @@
  * Acess 2
  * Virtual File System
  */
-#include <common.h>
+#include <acess.h>
+#include <fs_sysfs.h>
 #include "vfs.h"
 #include "vfs_int.h"
 #include "vfs_ext.h"
@@ -11,23 +12,49 @@
 extern tVFS_Driver	gRootFS_Info;
 extern tVFS_Driver	gDevFS_Info;
 
+// === PROTOTYPES ===
+#if 0
+ int	VFS_Init(void);
+char	*VFS_GetTruePath(const char *Path);
+void	VFS_GetMemPath(char *Dest, void *Base, Uint Length);
+tVFS_Driver	*VFS_GetFSByName(const char *Name);
+ int	VFS_AddDriver(tVFS_Driver *Info);
+#endif
+void	VFS_UpdateDriverFile(void);
+
+// === EXPORTS ===
+EXPORT(VFS_AddDriver);
+
 // === GLOBALS ===
 tVFS_Node	NULLNode = {0};
-static int	siDriverListLock = 0;
+tShortSpinlock	slDriverListLock;
 tVFS_Driver	*gVFS_Drivers = NULL;
+char	*gsVFS_DriverFile = NULL;
+ int	giVFS_DriverFileID = 0;
+
+char	*gsVFS_MountFile = NULL;
+ int	giVFS_MountFileID = 0;
 
 // === CODE ===
 /**
- * \fn int VFS_Init()
+ * \fn int VFS_Init(void)
  * \brief Initialises the VFS for use by the kernel and user
  */
-int VFS_Init()
+int VFS_Init(void)
 {
 	// Core Drivers
 	gVFS_Drivers = &gRootFS_Info;
 	gVFS_Drivers->Next = &gDevFS_Info;
+	VFS_UpdateDriverFile();
 	
-	VFS_Mount("root", "/", "rootfs", "");
+	// Register with SysFS
+	giVFS_MountFileID = SysFS_RegisterFile("VFS/Mounts", NULL, 0);
+	giVFS_DriverFileID = SysFS_RegisterFile("VFS/Drivers", NULL, 0);
+	
+	if( VFS_Mount("root", "/", "rootfs", "") != 0 ) {
+		Panic("Unable to mount root (Where the **** is rootfs?)");
+		return -1;
+	}
 	VFS_MkDir("/Devices");
 	VFS_MkDir("/Mount");
 	VFS_Mount("dev", "/Devices", "devfs", "");
@@ -37,18 +64,20 @@ int VFS_Init()
 }
 
 /**
- * \fn char *VFS_GetTruePath(char *Path)
+ * \fn char *VFS_GetTruePath(const char *Path)
  * \brief Gets the true path (non-symlink) of a file
  */
-char *VFS_GetTruePath(char *Path)
+char *VFS_GetTruePath(const char *Path)
 {
 	tVFS_Node	*node;
 	char	*ret, *tmp;
 	
 	tmp = VFS_GetAbsPath(Path);
 	if(tmp == NULL)	return NULL;
+	//Log(" VFS_GetTruePath: tmp = '%s'", tmp);
 	node = VFS_ParsePath(tmp, &ret);
 	free(tmp);
+	//Log(" VFS_GetTruePath: node=%p, ret='%s'", node, ret);
 	
 	if(!node)	return NULL;
 	if(node->Close)	node->Close(node);
@@ -57,30 +86,29 @@ char *VFS_GetTruePath(char *Path)
 }
 
 /**
- * \fn void VFS_GetMemPath(void *Base, Uint Length, char *Dest)
+ * \fn void VFS_GetMemPath(char *Dest, void *Base, Uint Length)
  * \brief Create a VFS memory pointer path
  */
-void VFS_GetMemPath(void *Base, Uint Length, char *Dest)
+void VFS_GetMemPath(char *Dest, void *Base, Uint Length)
 {
-	Log("VFS_GetMemPath: (Base=%p, Length=0x%x, Dest=%p)", Base, Length, Dest);
 	Dest[0] = '$';
-	itoa( &Dest[1], (Uint)Base, 16, BITS/4, '0' );
+	itoa( &Dest[1], (tVAddr)Base, 16, BITS/4, '0' );
 	Dest[BITS/4+1] = ':';
 	itoa( &Dest[BITS/4+2], Length, 16, BITS/4, '0' );
-	
-	Log("VFS_GetMemPath: Dest = \"%s\"", Dest);
+	Dest[BITS/2+2] = '\0';
 }
 
 /**
- * \fn tVFS_Driver *VFS_GetFSByName(char *Name)
+ * \fn tVFS_Driver *VFS_GetFSByName(const char *Name)
  * \brief Gets a filesystem structure given a name
  */
-tVFS_Driver *VFS_GetFSByName(char *Name)
+tVFS_Driver *VFS_GetFSByName(const char *Name)
 {
 	tVFS_Driver	*drv = gVFS_Drivers;
 	
 	for(;drv;drv=drv->Next)
 	{
+//		Log("strcmp('%s' (%p), '%s') == 0?", drv->Name, drv->Name, Name);
 		if(strcmp(drv->Name, Name) == 0)
 			return drv;
 	}
@@ -94,10 +122,43 @@ int VFS_AddDriver(tVFS_Driver *Info)
 {
 	if(!Info)	return  -1;
 	
-	LOCK( &siDriverListLock );
+	SHORTLOCK( &slDriverListLock );
 	Info->Next = gVFS_Drivers;
 	gVFS_Drivers = Info;
-	RELEASE( &siDriverListLock );
+	SHORTREL( &slDriverListLock );
+	
+	VFS_UpdateDriverFile();
 	
 	return 0;
 }
+
+/**
+ * \fn void VFS_UpdateDriverFile(void)
+ * \brief Updates the driver list file
+ */
+void VFS_UpdateDriverFile(void)
+{
+	tVFS_Driver	*drv;
+	 int	len = 0;
+	char	*buf;
+	
+	// Format:
+	// <name>\n
+	for( drv = gVFS_Drivers; drv; drv = drv->Next )
+	{
+		len += 1 + strlen(drv->Name);
+	}
+	buf = malloc(len+1);
+	len = 0;
+	for( drv = gVFS_Drivers; drv; drv = drv->Next )
+	{
+		strcpy( &buf[len], drv->Name );
+		len += strlen(drv->Name);
+		buf[len++] = '\n';
+	}
+	buf[len] = '\0';
+	
+	SysFS_UpdateFile( giVFS_DriverFileID, buf, len );
+	if(gsVFS_DriverFile)	free(gsVFS_DriverFile);
+	gsVFS_DriverFile = buf;
+}