syscalls: poll

src/include/kernel/devman.h

@@ -2,6 +2,7 @@
 #define _DEVMAN_H_INCLUDE
 
 #include <sys/stat.h>
+#include <poll.h>
 
 #define MAJOR_CONSOLE 1
 #define MAJOR_ZERO 2
@@ -16,6 +17,7 @@ typedef struct{
 	int (*isatty)(int minor);
 	int (*isseekable)(int minor, size_t* seekmax);
 	int (*ioctl)(int minor, unsigned long request, void* arg, int* result);
+	int (*poll)(int minor, pollfd* fd);
 } devcalls;
 
 int devman_read(int *error, int dev, void* buff, size_t count, size_t offset);
@@ -24,6 +26,7 @@ int devman_newdevice(char* name, int type, int major, int minor, devcalls* calls
 int devman_isatty(int dev);
 int devman_isseekable(int dev, size_t* seekmax);
 int devman_ioctl(int dev, unsigned long request, void* arg, int* result);
+int devman_poll(int dev, pollfd* fd);
 void devman_init();
 
 #endif

src/include/kernel/vfs.h

@@ -5,6 +5,7 @@
 #include <hashtable.h>
 #include <errno.h>
 #include <dirent.h>
+#include <poll.h>
 
 struct _vnode_t;
 struct _fscalls_t;
@@ -74,6 +75,7 @@ int vfs_read(int* error, vnode_t* node, void* buff, size_t count, size_t offset)
 int vfs_isatty(vnode_t* node);
 int vfs_getdirent(dirnode_t* node, dent_t* buff, size_t count, uintmax_t offset, size_t* readcount);
 int vfs_ioctl(vnode_t* node, unsigned long request, void* arg, int* result);
+int vfs_poll(vnode_t* node, pollfd* fd);
 
 void vfs_init();
 dirnode_t* vfs_root();

src/include/poll.h

@@ -0,0 +1,21 @@
+#ifndef _POLL_H_INCLUDE
+#define _POLL_H_INCLUDE
+
+typedef struct{
+	int   fd;
+	short events;
+	short revents;
+} pollfd;
+
+#define POLLIN 0x0001
+#define POLLPRI 0x0002
+#define POLLOUT 0x0004
+#define POLLERR 0x0008
+#define POLLHUP 0x0010
+#define POLLNVAL 0x0020
+#define POLLRDNORM 0x0040
+#define POLLRDBAND 0x0080
+#define POLLWRNORM 0x0100
+#define POLLRDHUP 0x2000
+
+#endif