pipes do not work :(

2 files changed, 29 insertions, 6 deletions

diff --git a/kernel/syscalls.c b/kernel/syscalls.c
index 3b599c0..b5dd6df 100644
--- a/kernel/syscalls.c
+++ b/kernel/syscalls.c
@@ -21,6 +21,7 @@
 #include "reent.h"
 #include "errno.h"
 
+/** errno helper */
 void set_errno(int no)
 {
     struct _reent *impure_ptr=VMEM_USER_NEWLIB;
@@ -85,9 +86,9 @@ char* syscall_get_name(uint32_t num)
 	case 73:
 	    return "SYSCALL_KILL"; 
 	case 80:
-	    return "SYSCALL_POLL"; 
-	case 83:
 	    return "SYSCALL_CLONE"; 
+	case 84:
+	    return "SYSCALL_PIPE"; 
     }
     return "UNKNOWN SYSCALL NUM";
 }
@@ -392,6 +393,27 @@ uint32_t syscall_generic_test(uint32_t nr,uint32_t p1, uint32_t p2, uint32_t p3,
     return 1;
 }
 
+uint32_t syscall_pipe(uint32_t *addr)
+{
+    if( next_fifo>=MAX_FIFOS || next_fd>=MAX_FD)kpanic("we ran out of fd's or fifo's");
+    fd pipfds[2];
+    int ret=fds_from_pipe(pipfds);
+
+    fds[next_fd]=pipfds[0] ;
+    *addr=next_fd;
+    addr++;
+
+    next_fd++;
+    if( next_fifo>=MAX_FIFOS || next_fd>=MAX_FD)kpanic("we ran out of fd's or fifo's");
+
+    fds[next_fd]=pipfds[1] ;
+    *addr=next_fd;
+    next_fd++;
+
+    return ret;
+
+}
+
 uint32_t syscall_generic(uint32_t nr,uint32_t p1, uint32_t p2, uint32_t p3, uint32_t pid)
 {
     switch(nr){
@@ -444,8 +466,8 @@ uint32_t syscall_generic(uint32_t nr,uint32_t p1, uint32_t p2, uint32_t p3, uint
 	case  SYSCALL_KILL        :
     //	return task_kill(p1,p2,p3);
 	    return -1;
-	case  SYSCALL_POLL        :
-	    return syscall_poll(p1);
+	case  SYSCALL_PIPE :
+	    return syscall_pipe(p1);
     }
-    return -1;
+    kpanic("unknown syscall");
 }
diff --git a/kernel/syscalls.h b/kernel/syscalls.h
index b736519..b7422af 100644
--- a/kernel/syscalls.h
+++ b/kernel/syscalls.h
@@ -23,7 +23,8 @@
 #define SYSCALL_KILL         73
 #define SYSCALL_POLL         80 //shit!?
 #define SYSCALL_CLONE        83
-#define SYSCALL_PIPE         84 // TODO! unnamed and named pipes (fifos) SYSCALL_MKNOD
+#define SYSCALL_PIPE         84 
+// TODO!  SYSCALL_MKNOD?
 
 char* syscall_get_name(uint32_t num);
 uint32_t syscall_generic(uint32_t nr,uint32_t p1, uint32_t p2, uint32_t p3, uint32_t pid);