minix/servers/is/dmp.c
Ben Gras 3512a86b44 . DS understands publishing and subscribing where keys are in string
form. Subscriptions are regular expressions.
 . different types are stored per key; currently u32 and/or string.
   the same key can be referenced (publish, subscribe, check) as any type.
 . notify()s are sent when subscriptions are triggered (publishing or
   updating of matching keys); optionally, a subscribe flag sends
   updates for all matching keys at subscription time, instead of only
   after updates after subscribing
 . all interfacing to ds is in /usr/src/lib/syslib/ds.c.
 . subscribe is ds_subscribe
   publish functions are ds_publish_<type>
   retrieve functions are ds_retrieve_<type> (one-time retrieval of a value)
   check functions are ds_check_<type> (check for updated key caller
      subscribes to not yet checked for, or ESRCH for none)
 . ramdisk driver updated with new ds interface
2006-07-13 14:50:23 +00:00

102 lines
3.3 KiB
C

/* This file contains information dump procedures. During the initialization
* of the Information Service 'known' function keys are registered at the TTY
* server in order to receive a notification if one is pressed. Here, the
* corresponding dump procedure is called.
*
* The entry points into this file are
* handle_fkey: handle a function key pressed notification
*/
#include "inc.h"
/* Define hooks for the debugging dumps. This table maps function keys
* onto a specific dump and provides a description for it.
*/
#define NHOOKS 18
struct hook_entry {
int key;
void (*function)(void);
char *name;
} hooks[NHOOKS] = {
{ F1, proctab_dmp, "Kernel process table" },
{ F2, memmap_dmp, "Process memory maps" },
{ F3, image_dmp, "System image" },
{ F4, privileges_dmp, "Process privileges" },
{ F5, monparams_dmp, "Boot monitor parameters" },
{ F6, irqtab_dmp, "IRQ hooks and policies" },
{ F7, kmessages_dmp, "Kernel messages" },
{ F9, sched_dmp, "Scheduling queues" },
{ F10, kenv_dmp, "Kernel parameters" },
{ F11, timing_dmp, "Timing details (if enabled)" },
{ SF1, mproc_dmp, "Process manager process table" },
{ SF2, sigaction_dmp, "Signals" },
{ SF3, fproc_dmp, "Filesystem process table" },
{ SF4, dtab_dmp, "Device/Driver mapping" },
{ SF5, mapping_dmp, "Print key mappings" },
{ SF6, rproc_dmp, "Reincarnation server process table" },
{ SF7, holes_dmp, "Memory free list" },
{ SF8, data_store_dmp, "Data store contents" },
};
/*===========================================================================*
* handle_fkey *
*===========================================================================*/
#define pressed(k) ((F1<=(k)&&(k)<=F12 && bit_isset(m->FKEY_FKEYS,((k)-F1+1)))\
|| (SF1<=(k) && (k)<=SF12 && bit_isset(m->FKEY_SFKEYS, ((k)-SF1+1))))
PUBLIC int do_fkey_pressed(m)
message *m; /* notification message */
{
int s, h;
/* The notification message does not convey any information, other
* than that some function keys have been pressed. Ask TTY for details.
*/
m->m_type = FKEY_CONTROL;
m->FKEY_REQUEST = FKEY_EVENTS;
if (OK != (s=sendrec(TTY_PROC_NR, m)))
report("IS", "warning, sendrec to TTY failed", s);
/* Now check which keys were pressed: F1-F12, SF1-SF12. */
for(h=0; h < NHOOKS; h++)
if(pressed(hooks[h].key))
hooks[h].function();
/* Don't send a reply message. */
return(EDONTREPLY);
}
/*===========================================================================*
* key_name *
*===========================================================================*/
PRIVATE char *key_name(int key)
{
static char name[15];
if(key >= F1 && key <= F12)
sprintf(name, " F%d", key - F1 + 1);
else if(key >= SF1 && key <= SF12)
sprintf(name, "Shift+F%d", key - SF1 + 1);
else
sprintf(name, "?");
return name;
}
/*===========================================================================*
* mapping_dmp *
*===========================================================================*/
PUBLIC void mapping_dmp(void)
{
int h;
printf("Function key mappings for debug dumps in IS server.\n");
printf(" Key Description\n");
printf("-------------------------------------");
printf("------------------------------------\n");
for(h=0; h < NHOOKS; h++)
printf(" %10s. %s\n", key_name(hooks[h].key), hooks[h].name);
printf("\n");
}