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LibCore: Add helpers to create block and character device files

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Liav A 2023-06-25 13:07:58 +03:00 • committed by Andrew Kaster
parent 39c93f63c8
commit 41db527369
2 changed files with 19 additions and 0 deletions
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14
Userland/Libraries/LibCore/System.cpp
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@ -21,6 +21,7 @@
#include <sys/ioctl.h> #include <sys/ioctl.h>
#include <sys/mman.h> #include <sys/mman.h>
#include <sys/time.h> #include <sys/time.h>
#include <sys/types.h>
#include <termios.h> #include <termios.h>
#include <unistd.h> #include <unistd.h>
@ -30,6 +31,7 @@
# include <LibSystem/syscall.h> # include <LibSystem/syscall.h>
# include <serenity.h> # include <serenity.h>
# include <sys/ptrace.h> # include <sys/ptrace.h>
# include <sys/sysmacros.h>
#endif #endif
#if defined(AK_OS_LINUX) && !defined(MFD_CLOEXEC) #if defined(AK_OS_LINUX) && !defined(MFD_CLOEXEC)
@ -445,6 +447,18 @@ ErrorOr<int> fcntl(int fd, int command, ...)
return rc; return rc;
} }
#ifdef AK_OS_SERENITY
ErrorOr<void> create_block_device(StringView name, mode_t mode, unsigned major, unsigned minor)
{
return Core::System::mknod(name, mode | S_IFBLK, makedev(major, minor));
}
ErrorOr<void> create_char_device(StringView name, mode_t mode, unsigned major, unsigned minor)
{
return Core::System::mknod(name, mode | S_IFCHR, makedev(major, minor));
}
#endif
ErrorOr<void*> mmap(void* address, size_t size, int protection, int flags, int fd, off_t offset, [[maybe_unused]] size_t alignment, [[maybe_unused]] StringView name) ErrorOr<void*> mmap(void* address, size_t size, int protection, int flags, int fd, off_t offset, [[maybe_unused]] size_t alignment, [[maybe_unused]] StringView name)
{ {
#ifdef AK_OS_SERENITY #ifdef AK_OS_SERENITY

5
Userland/Libraries/LibCore/System.h
View file

@ -237,6 +237,11 @@ ErrorOr<void> access(StringView pathname, int mode, int flags = 0);
ErrorOr<DeprecatedString> readlink(StringView pathname); ErrorOr<DeprecatedString> readlink(StringView pathname);
ErrorOr<int> poll(Span<struct pollfd>, int timeout); ErrorOr<int> poll(Span<struct pollfd>, int timeout);
#ifdef AK_OS_SERENITY
ErrorOr<void> create_block_device(StringView name, mode_t mode, unsigned major, unsigned minor);
ErrorOr<void> create_char_device(StringView name, mode_t mode, unsigned major, unsigned minor);
#endif
class AddressInfoVector { class AddressInfoVector {
AK_MAKE_NONCOPYABLE(AddressInfoVector); AK_MAKE_NONCOPYABLE(AddressInfoVector);
AK_MAKE_DEFAULT_MOVABLE(AddressInfoVector); AK_MAKE_DEFAULT_MOVABLE(AddressInfoVector);