Syscalls

Enumerations
enum	{   SYSCALL_YIELD, SYSCALL_EXIT_PROCESS, SYSCALL_EXIT_THREAD, SYSCALL_GET_CURRENT_PROCESS,   SYSCALL_GET_CURRENT_THREAD, SYSCALL_GET_MONOTONIC_CLOCK, SYSCALL_GET_PROCESS_INFO, SYSCALL_EXECUTE_PROGRAM,   SYSCALL_GET_THREADLOCAL_STORAGE_BASE = 0x100, SYSCALL_GET_THREADLOCAL_STORAGE_LENGTH, SYSCALL_GET_PROGRAM_ARGUMENTS_BASE, SYSCALL_GET_PROGRAM_ARGUMENTS_LENGTH,   SYSCALL_GET_ENVIRONMENT_VARIABLES_BASE, SYSCALL_GET_ENVIRONMENT_VARIABLES_LENGTH, SYSCALL_ALLOCATE_MEMORY = 0x200, SYSCALL_RELEASE_MEMORY,   SYSCALL_FORK = 0x300, SYSCALL_CREATE_THREAD, SYSCALL_CREATE_EVENT, SYSCALL_CREATE_SEMAPHORE,   SYSCALL_CREATE_PIPE, SYSCALL_CREATE_TIMER, SYSCALL_OBJECT_DUP = 0x400, SYSCALL_OBJECT_DUP2,   SYSCALL_OBJECT_EXISTS, SYSCALL_OBJECT_COMPARE, SYSCALL_OBJECT_CLOSE, SYSCALL_OBJECT_SHUTDOWN,   SYSCALL_OBJECT_GET_STATUS, SYSCALL_OBJECT_WAIT, SYSCALL_OBJECT_SIGNAL, SYSCALL_OBJECT_WRITE,   SYSCALL_OBJECT_READ, SYSCALL_OBJECT_ATTACH_OBJ, SYSCALL_OBJECT_DETACH_OBJ, SYSCALL_CONSOLE_WRITE = 0x500,   SYSCALL_CONSOLE_WRITE_RAW, SYSCALL_CONSOLE_CLEAR, SYSCALL_CONSOLE_GET_SIZE, SYSCALL_CONSOLE_SET_COLOR,   SYSCALL_CONSOLE_GET_COLOR, SYSCALL_CONSOLE_SET_CURSOR, SYSCALL_CONSOLE_GET_CURSOR, SYSCALL_CONSOLE_SET_HARDWARE_CURSOR,   SYSCALL_CONSOLE_GET_HARDWARE_CURSOR, SYSCALL_CONSOLE_SET_FLAGS, SYSCALL_CONSOLE_GET_FLAGS, SYSCALL_FILESYSTEM_SEARCH_FILE = 0x600,   SYSCALL_FILESYSTEM_SEARCH_DIRECTORY, SYSCALL_FILESYSTEM_OPEN }

Detailed Description

Enumeration Type Documentation

anonymous enum

anonymous enum

Syscall table

Enumerator
SYSCALL_YIELD	Schedule another process. Parameters: None Returns: Nothing
SYSCALL_EXIT_PROCESS	Exit current process. Parameters: Exitcode Returns: Nothing (never returns)
SYSCALL_EXIT_THREAD	Exit current thread. Parameters: Exitcode Returns: Nothing (never returns)
SYSCALL_GET_CURRENT_PROCESS	Allocates a new handle which points to the current process. Parameters: None Returns: Handle to the current process
SYSCALL_GET_CURRENT_THREAD	Allocates a new handle which points to the current thread. Parameters: None Returns: Handle to the current thread
SYSCALL_GET_MONOTONIC_CLOCK	Returns the current kernel timestamp (in milliseconds) Parameters: None Returns: Kernel timestamp (lower 32bit)
SYSCALL_GET_PROCESS_INFO	Returns information about all running processes in the system Parameters: Pointer to an array of processInfo structures Number of entries in the array Returns: Number of processes (can also be greater than the number of entries in the array)
SYSCALL_EXECUTE_PROGRAM	Replaces the current process with the one specified by the handle. Parameters: Pointer to a file object Argument buffer Length of argument buffer Returns: Nothing
SYSCALL_GET_THREADLOCAL_STORAGE_BASE	Get thread local storage address. Parameters: None Returns: Pointer to thread local storage
SYSCALL_GET_THREADLOCAL_STORAGE_LENGTH	Get thread local storage length in bytes. Parameters: None Returns: Length in bytes
SYSCALL_GET_PROGRAM_ARGUMENTS_BASE	Get the program argument array. Parameters: None Returns: Pointer to the argument array (if any)
SYSCALL_GET_PROGRAM_ARGUMENTS_LENGTH	Get the length of the memory section reserved for the argument array. Parameters: None Returns: Length in bytes
SYSCALL_GET_ENVIRONMENT_VARIABLES_BASE	Get the program environment variables. Parameters: None Returns: Pointer to the environment variable array (if any)
SYSCALL_GET_ENVIRONMENT_VARIABLES_LENGTH	Get the length of the memory section reserved for the environment variables. Parameters: None Returns: Length in bytes
SYSCALL_ALLOCATE_MEMORY	Allocate virtual pages. Parameters: Number of pages to allocate Returns: Pointer to the first page
SYSCALL_RELEASE_MEMORY	Free virtual pages. Parameters: Pointer to the first page to free Number of pages to free Returns: True on sucess, otherwise false
SYSCALL_FORK	Fork process. Parameters: None Returns: 0: you are the forked process >0: pid of the client process (i.e. you are the parent process) <0: error
SYSCALL_CREATE_THREAD	Create a new thread. Parameters: Pointer to the function which should be started in the new thread. (opt) New value of eax (opt) New value of ebx (opt) New value of ecx (opt) New value of edx Returns: Thread handle
SYSCALL_CREATE_EVENT	Creates a new event object. Parameters: True if all process should be woken up, otherwise only one process will wake up Returns: Event handle
SYSCALL_CREATE_SEMAPHORE	Creates a new semaphore object. Parameters: Initial value of the semaphore Returns: Semaphore handle
SYSCALL_CREATE_PIPE	Creates a new pipe object. Parameters: None Returns: Pipe handle
SYSCALL_CREATE_TIMER	Creates a new timer object. Parameters: True if all process should be woken up, otherwise only one process will wake up Returns: Timer handle
SYSCALL_OBJECT_DUP	Duplicates a handle Parameters: any kernel handle Returns: new kernel handle
SYSCALL_OBJECT_DUP2	Replaces a kernel handle with a new object Parameters: soure kernel handle destination kernel handle Returns: new kernel handle
SYSCALL_OBJECT_EXISTS	Checks if a given handle exists. Parameters: Handle to a kernel object Returns: True if it exists, otherwise false
SYSCALL_OBJECT_COMPARE	Checks if two handles point to the same kernel object. Parameters: Handle 1 Handle 2 Returns: -1 if both handles are invalid True if both handles are equal, otherwise false
SYSCALL_OBJECT_CLOSE	Closes a specific handle. The object can still remain if other handles also point to it. Parameters: Handle to a kernel object Returns: True on success, otherwise false
SYSCALL_OBJECT_SHUTDOWN	Forces shutdown of a specific kernel object (for example thread termination, closing pipes, ...) Parameters: Handle to a kernel object (opt) Mode paramter Returns: True on success, otherwise false
SYSCALL_OBJECT_GET_STATUS	Returns an integer representing the internal state of an object. If an object has multiple states the mode parameter can be used to query each one individually. The exact meaning depends on the type of the object. Parameters: Handle to a kernel object (opt) Mode parameter Returns: True on success, otherwise false
SYSCALL_OBJECT_WAIT	Waits for a specific action related to the kernel object (thread or process termination, semaphore). The exact meaning depends on the type of the object. Parameters: Handle to a kernel object (opt) Mode parameter Returns: -1: invalid handle or wakeup because of a critical error (for example object deleted) otherwise: result value (depending on the object)
SYSCALL_OBJECT_SIGNAL	Wakes up a specific kernel object. This is only valid for specific objects like threads, semaphores or events. Parameters: Handle to a kernel object Result Returns: True on success, otherwise false
SYSCALL_OBJECT_WRITE	Writes some data into a kernel object. This is only valid for specific objects like pipes. Parameters: Handle to a kernel object Buffer Length in bytes Returns: >=0: number of bytes written, 0 means that we have to wait for more data <0: invalid handle or pointer
SYSCALL_OBJECT_READ	Reads some data from a kernel object. This is only valid for specific objects like pipes. Parameters: Handle to a kernel object Buffer Length in bytes Returns: >=0: number of bytes read, 0 means that we have to wait for more data <0: invalid handle or pointer
SYSCALL_OBJECT_ATTACH_OBJ	Attaches a second kernel object to the first one. This is only valid for specific objects like events. Parameters: Handle to a kernel object Handle to a second object which should be attached (opt) Mode parameter Identifier Returns: True on sucess, otherwise false
SYSCALL_OBJECT_DETACH_OBJ	Detaches a second kernel object to the first one. This is only valid for specific objects like events. Parameters: Handle to a kernel object Identifier Returns: True on sucess, otherwise false
SYSCALL_CONSOLE_WRITE	Displays a string on the terminal Parameters: Buffer Length in bytes Returns: >=0: number of bytes written <0: invalid handle or pointer
SYSCALL_CONSOLE_WRITE_RAW	Displays raw color and character codes on the terminal Parameters: Buffer (uint16_t) Length in characters (half the size of the memory) Returns: >=0: number of bytes written <0: invalid handle or pointer
SYSCALL_CONSOLE_CLEAR	Clears the terminal, i.e. removes all text Parameters: None Returns: Nothing
SYSCALL_CONSOLE_GET_SIZE	Get she size of the terminal Parameters: None Returns: higher 16 bit contain the height and lower 16 bit the width
SYSCALL_CONSOLE_SET_COLOR	Set color for normal text writes Parameters: Packed color (foreground & background color) Returns: Nothing
SYSCALL_CONSOLE_GET_COLOR	Get the current color of the terminal Parameters: None Returns: Packed color (foreground & background color)
SYSCALL_CONSOLE_SET_CURSOR	Set the position of the text cursor Parameters: X position Y position Returns: Nothing
SYSCALL_CONSOLE_GET_CURSOR	Get the current position of the text cursor Parameters: None Returns: Packed position (X & Y position)
SYSCALL_CONSOLE_SET_HARDWARE_CURSOR	Set the position of the hardware cursor Parameters: X position Y position Returns: Nothing
SYSCALL_CONSOLE_GET_HARDWARE_CURSOR	Get the current position of the hardware cursor Parameters: None Returns: Packed position (X & Y position)
SYSCALL_CONSOLE_SET_FLAGS	Set the flags for the console Parameters: Flags Returns: Nothing
SYSCALL_CONSOLE_GET_FLAGS	Get the current flags for the console Parameters: None Returns: flags
SYSCALL_FILESYSTEM_SEARCH_FILE	Searches for a given file, and returns a pointer to the file object Parameters: Parent directory handle or (-1) Filename buffer Filename length Create nonexistent file Returns: Handle to the file object
SYSCALL_FILESYSTEM_SEARCH_DIRECTORY	Searches for a given directory, and returns a pointer to the directory object Parameters: Parent directory handle or (-1) Directory buffer Directory length Create nonexistent directory Returns: Handle to the directory object
SYSCALL_FILESYSTEM_OPEN	Opens a directory or file. Parameters: Handle to a directory/file object Returns: Handle to a opened directory/file object

Definition at line 39 of file syscall.h.