file decriptors

src/include/kernel/fd.h

@@ -0,0 +1,36 @@
+#ifndef _FD_H_INCLUDE
+#define _FD_H_INCLUDE
+
+
+#define O_RDONLY 00
+#define O_WRONLY 01
+#define O_RDWR 02
+#define O_ACCMODE 001000003
+
+#define O_CREAT	0100
+#define O_EXCL 0200
+#define O_NOCTTY 0400
+#define O_TRUNC	01000
+#define O_APPEND 02000
+#define O_NONBLOCK 04000
+#define O_DSYNC 010000
+#define O_ASYNC 020000
+#define O_LARGEFILE 0100000
+#define O_DIRECTORY 0200000
+#define O_NOFOLLOW 0400000
+#define O_NOATIME 01000000
+#define O_CLOEXEC 02000000
+#define O_SYNC 04010000
+#define O_RSYNC 04010000
+#define O_TMPFILE 020000000
+
+
+
+typedef struct {
+        vnode_t* node;
+        off_t offset;
+        int flags;
+} fd_t;
+
+
+#endif

src/include/kernel/sched.h

@@ -5,6 +5,7 @@
 #include <arch/regs.h>
 #include <kernel/vfs.h>
 #include <kernel/vmm.h>
+#include <kernel/fd.h>
 
 #define THREAD_PRIORITY_INTERRUPT 0
 #define THREAD_PRIORITY_KERNEL 1
@@ -39,6 +40,9 @@ typedef struct _proc_t{
 	pid_t pid;
 	gid_t gid;
 	uid_t uid;
+	fd_t* fds;
+	size_t fdcount;
+	off_t  firstfreefd;
 	vmm_context* context;
 	thread_t** threads;
 	size_t threadcount;

src/sys/sched/scheduler.c

@@ -9,6 +9,7 @@
 #include <string.h>
 #include <kernel/elf.h>
 
+#define PROC_START_FD_COUNT 3
 #define THREAD_QUANTUM 10000
 
 // queue 0: interrupt threads
@@ -34,6 +35,17 @@ static proc_t* allocproc(size_t threadcount){
 		return NULL;
 	}
 
+	proc->fds = alloc(sizeof(fd_t) * PROC_START_FD_COUNT);
+
+	if(!proc->fds){
+		free(proc->threads);
+		free(proc);
+		return NULL;
+	}
+
+	proc->fdcount = PROC_START_FD_COUNT;
+	proc->firstfreefd = PROC_START_FD_COUNT;
+
 	proc->context = vmm_newcontext();
 
 	if(!proc->context){
@@ -277,8 +289,47 @@ void sched_runinit(){
 	proc->cwd  = vfs_root();
 	proc->pid  = 1;
 
+	fd_t* stdinfd = &proc->fds[0];
+	fd_t* stdoutfd = &proc->fds[1];
+	fd_t* stderrfd = &proc->fds[2];
+	
+	// dummy file before console actually gets implemented and a devfs node
+	
+	#define CONSOLE_DUMMY "etc/consoledummy"
+
+	size_t ret = vfs_create(vfs_root(), CONSOLE_DUMMY, 0777);
+
+	if(ret){
+		printf("Create failed: %s\n", strerror(ret));
+		_panic("Failed to create dummy console", 0);
+	}
+	ret = vfs_open(&stdinfd->node, vfs_root(), CONSOLE_DUMMY);
+
+	if(ret){
+		printf("Open failed: %s\n", strerror(ret));
+		_panic("Could not open stdin for init", 0);
+	}
+
+	ret = vfs_open(&stdoutfd->node, vfs_root(), CONSOLE_DUMMY);
+
+	if(ret){
+		printf("Open failed: %s\n", strerror(ret));
+		_panic("Could not open stdout for init", 0);
+	}
+
+	ret = vfs_open(&stderrfd->node, vfs_root(), CONSOLE_DUMMY);
+
+	if(ret){
+		printf("Open failed: %s\n", strerror(ret));
+		_panic("Could not open stderr for init", 0);
+	}
+	
+	stdinfd->offset = stdoutfd->offset = stderrfd->offset = 0;
+	stdinfd->flags = O_RDONLY;
+	stdoutfd->flags = stderrfd->flags = O_WRONLY;
+
 	vnode_t* node;
-	size_t ret = vfs_open(&node, vfs_root(), "sbin/init");
+	ret = vfs_open(&node, vfs_root(), "sbin/init");
 
 	if(ret){
 		printf("Open failed: %s\n", strerror(ret));
@@ -293,8 +344,6 @@ void sched_runinit(){
 		printf("ELF load error: %s\n", strerror(ret));
 		_panic("Could not load init", 0);
 	}
-	
-	thread->extraregs.gsbase = 0xFFFFFFFFDEADBEEF;
 
 	switch_thread(thread);