c0718054e9
- fixed bug that caused IDLE to panic (irq hook inconsistency); - kprintf() now accepts multiple arguments; moved to utility.c; - prepare_shutdown() signals system processes with SIGKSTOP; - phys_fill() renamed to phys_memset(), argument order changed; - kmemset() removed in favor of phys_kmemset(); - kstrncpy() removed in favor of phys_copy(); - katoi, kstrncmp replaced by normal library procedure again; - rm_irq_handler() interface changed (simply pass hook pointer);
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/* The system call implemented in this file:
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* m_type: SYS_EXIT
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*
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* The parameters for this system call are:
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* m1_i1: PR_PROC_NR (slot number of exiting process)
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*/
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#include "../system.h"
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#if USE_EXIT
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/*===========================================================================*
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* do_exit *
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*===========================================================================*/
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PUBLIC int do_exit(m_ptr)
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message *m_ptr; /* pointer to request message */
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{
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/* Handle sys_exit. A user process has exited or a system process requests
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* to exit. Only the PM can request other process slots to be cleared.
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* The routine to clean up a process table slot cancels outstanding timers,
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* possibly removes the process from the message queues, and resets certain
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* process table fields to the default values.
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*/
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int exit_proc_nr;
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/* Determine what process exited. User processes are handled here. */
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if (PM_PROC_NR == m_ptr->m_source) {
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exit_proc_nr = m_ptr->PR_PROC_NR; /* get exiting process */
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if (exit_proc_nr != SELF) { /* PM tries to exit self */
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if (! isokprocn(exit_proc_nr)) return(EINVAL);
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clear_proc(proc_addr(exit_proc_nr)); /* exit a user process */
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return(OK); /* report back to PM */
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}
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}
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/* The PM or some other system process requested to be exited. */
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clear_proc(proc_addr(m_ptr->m_source));
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return(EDONTREPLY);
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}
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#endif /* USE_EXIT */
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