48c6bb79f4
SYSLIB CHANGES: - DS calls to publish / retrieve labels consider endpoints instead of u32_t. VFS CHANGES: - mapdriver() only adds an entry in the dmap table in VFS. - dev_up() is only executed upon reception of a driver up event. INET CHANGES: - INET no longer searches for existing drivers instances at startup. - A newtwork driver is (re)initialized upon reception of a driver up event. - Networking startup is now race-free by design. No need to waste 5 seconds at startup any more. DRIVER CHANGES: - Every driver publishes driver up events when starting for the first time or in case of restart when recovery actions must be taken in the upper layers. - Driver up events are published by drivers through DS. - For regular drivers, VFS is normally the only subscriber, but not necessarily. For instance, when the filter driver is in use, it must subscribe to driver up events to initiate recovery. - For network drivers, inet is the only subscriber for now. - Every VFS driver is statically linked with libdriver, every network driver is statically linked with libnetdriver. DRIVER LIBRARIES CHANGES: - Libdriver is extended to provide generic receive() and ds_publish() interfaces for VFS drivers. - driver_receive() is a wrapper for sef_receive() also used in driver_task() to discard spurious messages that were meant to be delivered to a previous version of the driver. - driver_receive_mq() is the same as driver_receive() but integrates support for queued messages. - driver_announce() publishes a driver up event for VFS drivers and marks the driver as initialized and expecting a DEV_OPEN message. - Libnetdriver is introduced to provide similar receive() and ds_publish() interfaces for network drivers (netdriver_announce() and netdriver_receive()). - Network drivers all support live update with no state transfer now. KERNEL CHANGES: - Added kernel call statectl for state management. Used by driver_announce() to unblock eventual callers sendrecing to the driver.
218 lines
6.9 KiB
C
218 lines
6.9 KiB
C
/* Function prototypes for the system library. The prototypes in this file
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* are undefined to do_unused if the kernel call is not enabled in config.h.
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* The implementation is contained in src/kernel/system/.
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*
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* The system library allows to access system services by doing a kernel call.
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* System calls are transformed into request messages to the SYS task that is
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* responsible for handling the call. By convention, sys_call() is transformed
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* into a message with type SYS_CALL that is handled in a function do_call().
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*
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* Changes:
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* Mar 01, 2010 SYS_CLEAR and SYS_EXIT split (Cristiano Giuffrida)
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* Jul 30, 2005 created SYS_INT86 to support BIOS driver (Philip Homburg)
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* Jul 13, 2005 created SYS_PRIVCTL to manage services (Jorrit N. Herder)
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* Jul 09, 2005 updated SYS_KILL to signal services (Jorrit N. Herder)
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* Jun 21, 2005 created SYS_NICE for nice(2) kernel call (Ben J. Gras)
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* Jun 21, 2005 created SYS_MEMSET to speed up exec(2) (Ben J. Gras)
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* Jan 20, 2005 updated SYS_COPY for virtual_copy() (Jorrit N. Herder)
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* Oct 24, 2004 created SYS_GETKSIG to support PM (Jorrit N. Herder)
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* Oct 10, 2004 created handler for unused calls (Jorrit N. Herder)
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* Sep 09, 2004 updated SYS_EXIT to let services exit (Jorrit N. Herder)
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* Aug 25, 2004 rewrote SYS_SETALARM to clean up code (Jorrit N. Herder)
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* Jul 13, 2004 created SYS_SEGCTL to support drivers (Jorrit N. Herder)
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* May 24, 2004 created SYS_SDEVIO to support drivers (Jorrit N. Herder)
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* May 24, 2004 created SYS_GETINFO to retrieve info (Jorrit N. Herder)
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* Apr 18, 2004 created SYS_VDEVIO to support drivers (Jorrit N. Herder)
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* Feb 24, 2004 created SYS_IRQCTL to support drivers (Jorrit N. Herder)
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* Feb 02, 2004 created SYS_DEVIO to support drivers (Jorrit N. Herder)
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*/
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#ifndef SYSTEM_H
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#define SYSTEM_H
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/* Common includes for the system library. */
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#include "debug.h"
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#include "kernel.h"
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#include "proto.h"
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#include "proc.h"
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/* Default handler for unused kernel calls. */
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_PROTOTYPE( int do_unused, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_exec, (struct proc * caller, message *m_ptr) );
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#if ! USE_EXEC
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#define do_exec do_unused
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#endif
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_PROTOTYPE( int do_fork, (struct proc * caller, message *m_ptr) );
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#if ! USE_FORK
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#define do_fork do_unused
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#endif
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_PROTOTYPE( int do_newmap, (struct proc * caller, message *m_ptr) );
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#if ! USE_NEWMAP
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#define do_newmap do_unused
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#endif
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_PROTOTYPE( int do_clear, (struct proc * caller, message *m_ptr) );
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#if ! USE_CLEAR
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#define do_clear do_unused
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#endif
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_PROTOTYPE( int do_trace, (struct proc * caller, message *m_ptr) );
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#if ! USE_TRACE
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#define do_trace do_unused
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#endif
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_PROTOTYPE( int do_runctl, (struct proc * caller, message *m_ptr) );
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#if ! USE_RUNCTL
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#define do_runctl do_unused
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#endif
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_PROTOTYPE( int do_update, (struct proc * caller, message *m_ptr) );
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#if ! USE_UPDATE
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#define do_update do_unused
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#endif
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_PROTOTYPE( int do_exit, (struct proc * caller, message *m_ptr) );
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#if ! USE_EXIT
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#define do_exit do_unused
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#endif
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_PROTOTYPE( int do_copy, (struct proc * caller, message *m_ptr) );
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#define do_vircopy do_copy
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#if ! (USE_VIRCOPY || USE_PHYSCOPY)
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#define do_copy do_unused
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#endif
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_PROTOTYPE( int do_umap, (struct proc * caller, message *m_ptr) );
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#if ! USE_UMAP
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#define do_umap do_unused
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#endif
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_PROTOTYPE( int do_memset, (struct proc * caller, message *m_ptr) );
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#if ! USE_MEMSET
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#define do_memset do_unused
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#endif
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_PROTOTYPE( int do_abort, (struct proc * caller, message *m_ptr) );
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#if ! USE_ABORT
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#define do_abort do_unused
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#endif
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_PROTOTYPE( int do_getinfo, (struct proc * caller, message *m_ptr) );
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#if ! USE_GETINFO
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#define do_getinfo do_unused
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#endif
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_PROTOTYPE( int do_privctl, (struct proc * caller, message *m_ptr) );
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#if ! USE_PRIVCTL
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#define do_privctl do_unused
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#endif
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_PROTOTYPE( int do_segctl, (struct proc * caller, message *m_ptr) );
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#if ! USE_SEGCTL
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#define do_segctl do_unused
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#endif
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_PROTOTYPE( int do_irqctl, (struct proc * caller, message *m_ptr) );
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#if ! USE_IRQCTL
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#define do_irqctl do_unused
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#endif
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_PROTOTYPE( int do_devio, (struct proc * caller, message *m_ptr) );
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#if ! USE_DEVIO
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#define do_devio do_unused
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#endif
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_PROTOTYPE( int do_vdevio, (struct proc * caller, message *m_ptr) );
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#if ! USE_VDEVIO
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#define do_vdevio do_unused
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#endif
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_PROTOTYPE( int do_int86, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_sdevio, (struct proc * caller, message *m_ptr) );
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#if ! USE_SDEVIO
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#define do_sdevio do_unused
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#endif
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_PROTOTYPE( int do_kill, (struct proc * caller, message *m_ptr) );
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#if ! USE_KILL
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#define do_kill do_unused
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#endif
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_PROTOTYPE( int do_getksig, (struct proc * caller, message *m_ptr) );
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#if ! USE_GETKSIG
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#define do_getksig do_unused
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#endif
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_PROTOTYPE( int do_endksig, (struct proc * caller, message *m_ptr) );
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#if ! USE_ENDKSIG
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#define do_endksig do_unused
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#endif
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_PROTOTYPE( int do_sigsend, (struct proc * caller, message *m_ptr) );
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#if ! USE_SIGSEND
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#define do_sigsend do_unused
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#endif
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_PROTOTYPE( int do_sigreturn, (struct proc * caller, message *m_ptr) );
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#if ! USE_SIGRETURN
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#define do_sigreturn do_unused
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#endif
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_PROTOTYPE( int do_times, (struct proc * caller, message *m_ptr) );
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#if ! USE_TIMES
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#define do_times do_unused
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#endif
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_PROTOTYPE( int do_setalarm, (struct proc * caller, message *m_ptr) );
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#if ! USE_SETALARM
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#define do_setalarm do_unused
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#endif
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_PROTOTYPE( int do_stime, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_vtimer, (struct proc * caller, message *m_ptr) );
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#if ! USE_VTIMER
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#define do_vtimer do_unused
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#endif
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_PROTOTYPE( int do_safecopy, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_vsafecopy, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_iopenable, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_vmctl, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_setgrant, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_readbios, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_safemap, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_saferevmap, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_safeunmap, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_sprofile, (struct proc * caller, message *m_ptr) );
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#if ! SPROFILE
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#define do_sprofile do_unused
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#endif
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_PROTOTYPE( int do_cprofile, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_profbuf, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_getmcontext, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_setmcontext, (struct proc * caller, message *m_ptr) );
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#if ! USE_MCONTEXT
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#define do_getmcontext do_unused
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#define do_setmcontext do_unused
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#endif
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_PROTOTYPE( int do_schedule, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_schedctl, (struct proc * caller, message *m_ptr) );
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_PROTOTYPE( int do_statectl, (struct proc * caller, message *m_ptr) );
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#if ! USE_STATECTL
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#define do_statectl do_unused
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#endif
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#endif /* SYSTEM_H */
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