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syscalls: ioctl

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Matheus
2023-07-05 20:19:36 -03:00
parent 50597114d1
commit f76046a56b
8 changed files with 51 additions and 8 deletions
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kernel-src/include/kernel/devfs.h
+1
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@@ -17,6 +17,7 @@ typedef struct {
int (*mmap)(int minor, void *addr, uintmax_t offset, int flags);
int (*munmap)(int minor, void *addr, uintmax_t offset, int flags);
int (*isatty)(int minor);
int (*ioctl)(int minor, unsigned long request, void *arg, int *result);
} devops_t;
typedef struct devnode_t {
kernel-src/include/kernel/vfs.h
+2
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@@ -92,6 +92,7 @@ typedef struct vops_t {
int (*munmap)(vnode_t *node, void *addr, uintmax_t offset, int flags, cred_t *cred);
int (*getdents)(vnode_t *node, dent_t *buffer, size_t count, uintmax_t offset, size_t *readcount);
int (*isatty)(vnode_t *node);
int (*ioctl)(vnode_t *node, unsigned long request, void *arg, int *result);
} vops_t;
#define VFS_MOUNT(vfs, mp, b, d) (vfs)->ops->mount(vfs, mp, b, d)
@@ -120,6 +121,7 @@ typedef struct vops_t {
#define VOP_GETDENTS(v, b, c, o, rc) (v)->ops->getdents(v, b, c, o, rc)
#define VOP_POLL(v, p) (v)->ops->poll(v, p)
#define VOP_ISATTY(v) ((v)->ops->isatty ? (v)->ops->isatty(v) : ENOTTY)
#define VOP_IOCTL(v, r, a, rp) ((v)->ops->ioctl ? (v)->ops->ioctl(v, r, a, rp) : ENOTTY)
#define VOP_HOLD(v) __atomic_add_fetch(&(v)->refcount, 1, __ATOMIC_SEQ_CST)
#define VOP_RELEASE(v) {\
if (__atomic_sub_fetch(&(v)->refcount, 1, __ATOMIC_SEQ_CST) == 0) {\