/* * Copyright 2000, International Business Machines Corporation and others. * All Rights Reserved. * * This software has been released under the terms of the IBM Public * License. For details, see the LICENSE file in the top-level source * directory or online at http://www.openafs.org/dl/license10.html */ /* * Scout: A quick and (semi-)dirty attempt at the old CMU vopcon. *------------------------------------------------------------------------*/ #include #include RCSID ("$Header: /cvs/openafs/src/scout/scout.c,v 1.9.2.4 2007/11/26 21:21:55 shadow Exp $"); #undef IN #ifdef AFS_AIX32_ENV #include #endif #include #undef IN #include /*Generic window package */ #include /*Object definitions */ #include /*Text object interface */ #include /*Light object interface */ #include /*Curses window package */ #include /*Dumb terminal window package */ #include /*X11 window package */ #include /*Frame package */ #include /*Standard I/O stuff */ #include /*Command interpretation library */ #include /*Interface for fsprobe module */ #include extern struct hostent *hostutil_GetHostByName(); extern int gtx_InputServer(); extern int gethostname(); /* * Command line parameter indicies. */ #define P_SERVER 0 #define P_BASE 1 #if 0 #define P_PACKAGE 2 #endif /* 0 */ #define P_FREQ 2 #define P_HOST 3 #define P_ATTENTION 4 #define P_DEBUG 5 /* * Define the width in chars for each light object on the mini-line. */ #define LIGHTOBJ_CONN_WIDTH 5 #define LIGHTOBJ_FETCH_WIDTH 10 #define LIGHTOBJ_STORE_WIDTH 10 #define LIGHTOBJ_WK_WIDTH 5 #define LIGHTOBJ_SRVNAME_WIDTH 13 #define LIGHTOBJ_DISK_WIDTH 12 /* * Define the types of justification we can perform. */ #define SCOUT_RIGHT_JUSTIFY 0 #define SCOUT_LEFT_JUSTIFY 1 #define SCOUT_CENTER 2 /* * Define the types of truncation we can perform. */ #define SCOUT_LEFT_TRUNC 0 #define SCOUT_RIGHT_TRUNC 1 /* * Define whether the value passed is a labeled disk quantity. */ #define SCOUT_ISNT_LDISK 0 #define SCOUT_IS_LDISK 1 /* * We sometimes use index-base pointers, so we need a distinguished * NIL value. */ #define SCOUT_NIL (-1) /* * Structure describing everything you want to know about a FileServer * disk. */ struct scout_disk { int prev; /*Index of previous list entry */ int next; /*Index of next list entry */ int active; /*Is this disk known to exist? */ char *name; /*Single-letter disk name */ struct onode *disk_lp; /*Ptr to disk light object */ }; /* * Structure defining all the objects in the Scout line (or lines) * for each server being watched. Note that scout_disk linked list * for used disks is ordered alphabetically. */ struct mini_line { /* * Information on server location & configuration. */ struct sockaddr_in skt; /*Server's socket info */ int numDisks; /*Number of disks used */ /* * Screen location info. */ int base_line; /*Line number on the screen */ int num_lines; /*Number of lines of info */ /* * Associated light objects. */ struct onode *currConns_lp; /*Number of current connections */ struct onode *fetches_lp; /*Number of data fetches */ struct onode *stores_lp; /*Number of data stores */ struct onode *workstations_lp; /*Workstation info */ struct onode *srvName_lp; /*Server name */ struct scout_disk disks[VOLMAXPARTS]; /*Info on all the disks */ int used_head; /*Index of first used disk struct */ int used_tail; /*Index of last used disk struct */ int free_head; /*Index of first free disk struct */ int free_tail; /*Index of last free disk struct */ }; /* * Structure defining the contents of the Scout screen. */ struct mini_screen { int numServers; /*Number of servers being watched */ int base_line_num; /*Base mini-line number */ struct mini_line *line; /*Array of screen lines */ }; static char pn[] = "scout"; /*Program name */ static int scout_debug = 0; /*Is debugging turned on? */ static FILE *scout_debugfd; /*Debugging file descriptor */ static int scout_gtx_initialized = 0; /*Has gtx been initialized? */ static struct mini_screen scout_screen; /*Mini-screen itself */ static int scout_probefreq; /*Probe frequency in seconds */ static char scout_basename[64]; /*Base server name */ static char scout_hostname[128]; /*Name of machine we're running on */ static int scout_showhostname = 0; /*Show name of machine we're on? */ static char scout_blankline[256]; /*Blank line */ static struct gwin *scout_gwin; /*Window to use */ static struct gtx_frame *scout_frame; /*Frame to use */ static struct onode *scout_banner0_lp; /*Banner light, line 0 */ static struct onode *scout_banner1_lp; /*Banner light, line 1 */ static struct onode *scout_banner2_lp; /*Banner light, line 2 */ static int scout_DiskLightLeftCol = 0; /*Column for leftmost disk light */ static struct gwin_sizeparams scout_frameDims; /*Frame dimensions */ /* * Attention thresholds & modes. */ #define SCOUT_ATTN_NOTUSED (-1) #define SCOUT_DISKM_PCUSED 0 #define SCOUT_DISKM_MINFREE 1 static int scout_attn_conn = SCOUT_ATTN_NOTUSED; static int scout_attn_fetch = SCOUT_ATTN_NOTUSED; static int scout_attn_store = SCOUT_ATTN_NOTUSED; static int scout_attn_workstations = SCOUT_ATTN_NOTUSED; static int scout_attn_disk_mode = SCOUT_DISKM_PCUSED; static int scout_attn_disk_minfree = 1000; static float scout_attn_disk_pcused = 0.95; static char scout_attn_disk_pcusedstr[8] = "95"; /* * Some strings we'll be using over and over again. */ static char scout_Banner[256]; static char scout_LightLabels[] = "Conn Fetch Store Ws Disk attn:"; static char scout_LightLabelUnd[] = "---- -------- -------- ----- ----------"; /*------------------------------------------------------------------------ * scout_CleanExit * * Description: * Exits cleanly from the Scout. If gtx has not yet been initialized, * then we simply call exit() with the value provided. Otherwise, * we call the appropriate gtx routine to exit cleanly from gtx, which * must reset the terminal or window. We also close the debugging * file descriptor, if one has been opened. * * Arguments: * int a_exitval : Value with which to exit the program. * * Returns: * Void. * * Environment: * Actions depend on scout_gtx_initialized. * * Side Effects: * This routine will always exit Scout. *------------------------------------------------------------------------*/ static void scout_CleanExit(a_exitval) int a_exitval; { /*scout_CleanExit */ static char rn[] = "scout_CleanExit"; /*Routine name */ if (scout_debugfd != (FILE *) 0) { fprintf(scout_debugfd, "[%s] Closing debugging file\n", rn); fclose(scout_debugfd); } if (scout_gtx_initialized) { gtxframe_exitValue = a_exitval; gtxframe_ExitCmd((char *)(>xframe_exitValue)); } else exit(a_exitval); } /*scout_CleanExit */ /*------------------------------------------------------------------------ * mini_initLightObject * * Description: * Create and initialize a light onode according to the given * parameters. * * Arguments: * char *a_name : Ptr to the light's string name. * int a_x : X offset. * int a_y : Y offset. * int a_width : Width in chars. * struct gwin *a_win : Ptr to window structure. * * Returns: * Ptr to new light onode on success, * A null pointer otherwise. * * Environment: * See above. * * Side Effects: * As advertised. *------------------------------------------------------------------------*/ static struct onode * mini_initLightObject(a_name, a_x, a_y, a_width, a_win) char *a_name; int a_x; int a_y; int a_width; struct gwin *a_win; { /*mini_initLightObject */ static char rn[] = "mini_initLightObject"; /*Routine name */ struct onode *newlightp; /*Ptr to new light onode */ /*We only support curses right now */ struct gator_light_crparams light_crparams; /*Light creation params */ char *truncname; /*Truncated name, if needed */ int name_len; /*True length of name */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called for name '%s', [%d, %d], %d-char field\n", rn, a_name, a_x, a_y, a_width); fflush(scout_debugfd); } newlightp = NULL; /* * Set up the creation parameters according to the information we've * received. */ light_crparams.onode_params.cr_type = GATOR_OBJ_LIGHT; name_len = strlen(a_name); if (scout_debug) fprintf(scout_debugfd, "[%s] Name '%s' has %d chars\n", rn, a_name, name_len); if (name_len <= a_width) sprintf(light_crparams.onode_params.cr_name, "%s", a_name); else { /* * We need to truncate the given name, leaving a `*' at the end to * show us it's been truncated. */ truncname = light_crparams.onode_params.cr_name; strncpy(truncname, a_name, a_width - 1); truncname[a_width - 1] = '*'; truncname[a_width] = 0; } light_crparams.onode_params.cr_x = a_x; light_crparams.onode_params.cr_y = a_y; light_crparams.onode_params.cr_width = a_width; light_crparams.onode_params.cr_height = 1; light_crparams.onode_params.cr_window = a_win; light_crparams.onode_params.cr_home_obj = NULL; light_crparams.onode_params.cr_prev_obj = NULL; light_crparams.onode_params.cr_parent_obj = NULL; light_crparams.onode_params.cr_helpstring = NULL; light_crparams.appearance = 0; light_crparams.flashfreq = 0; sprintf(light_crparams.label, "%s", a_name); light_crparams.label_x = 0; light_crparams.label_y = 0; newlightp = gator_objects_create((struct onode_createparams *)(&light_crparams)); /* * Return the news, happy or not. */ return (newlightp); } /*mini_initLightObject */ /*------------------------------------------------------------------------ * scout_initDiskLightObjects * * Description: * Create and initialize all Scout light objects for a server's * disks. * * Arguments: * struct scout_disk *a_line : Ptr to the server object line. * struct gwin *a_win : Ptr to window structure. * * Returns: * 0 on success, * -1 otherwise. * * Environment: * See above. * * Side Effects: * As advertised. *------------------------------------------------------------------------*/ static int scout_initDiskLightObjects(a_line, a_win) struct mini_line *a_line; struct gwin *a_win; { /*scout_initDiskLightObjects */ static char rn[] = "scout_initDiskLightObjects"; /*Routine name */ struct scout_disk *curr_disk; /*Ptr to current disk being set up */ int i; /*Loop variable */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called\n", rn); fflush(scout_debugfd); } /* * Set up the base linked list fields. */ a_line->used_head = SCOUT_NIL; a_line->used_tail = SCOUT_NIL; a_line->free_head = 0; a_line->free_tail = VOLMAXPARTS - 1; /* * Sweep through the disk structures, creating the light objects and * marking them all as free. */ curr_disk = a_line->disks; for (i = 0; i < VOLMAXPARTS; i++) { /* * Create the disk light object. */ if ((curr_disk->disk_lp = mini_initLightObject("Disk", /*Object name */ 0, /*X value */ 0, /*Y value */ LIGHTOBJ_DISK_WIDTH, /*Width */ a_win)) /*Window */ == NULL) { fprintf(stderr, "[%s:%s] Can't create disk %d light object\n", pn, rn, i); return (-1); } /* * Set the other fields in the disk records; Note that in the * fencepost cases, the prev and next pointers will have to be * fixed. */ curr_disk->prev = i - 1; curr_disk->next = i + 1; curr_disk->active = 0; curr_disk->name = '\0'; /* * Bump up to the next disk structure. */ curr_disk++; } /*for each disk structure */ /* * We made it all the way through. Fix the fencepost pointers, set * the overall pointers, then return success. */ a_line->disks[0].prev = SCOUT_NIL; a_line->disks[VOLMAXPARTS - 1].next = SCOUT_NIL; return (0); } /*scout_initDiskLightObjects */ /*------------------------------------------------------------------------ * mini_justify * * Description: * Place the chars in the source buffer into the target buffer * with the desired justification, either centered, left-justified * or right-justified. Also, support inidication of truncation * with a star (*), either on the left or right of the string, * and whether we're justifying a labeled disk quantity. * * Arguments: * char *a_srcbuff : Ptr to source char buffer. * char *a_dstbuff : Ptr to dest char buffer. * int a_dstwidth : Width of dest buffer in chars. * int a_justification : Kind of justification. * int a_rightTrunc : If non-zero, place the truncation char * on the right of the string. Otherwise, * place it on the left. * int a_isLabeledDisk : Is this a labeled disk quantity? * * Returns: * 0 on success, * -1 otherwise. * * Environment: * All it needs to know is exported by the fsprobe module, namely * the data structure where the probe results are stored. * * Side Effects: * As advertised. *------------------------------------------------------------------------*/ int mini_justify(a_srcbuff, a_dstbuff, a_dstwidth, a_justification, a_rightTrunc, a_isLabeledDisk) char *a_srcbuff; char *a_dstbuff; int a_dstwidth; int a_justification; int a_rightTrunc; int a_isLabeledDisk; { /*mini_justify */ static char rn[] = "mini_justify"; /*Routine name */ int leftpad_chars; /*# of chars for left-padding */ int num_src_chars; /*# of chars in source */ int true_num_src_chars; /*# src chars before truncation */ int trunc_needed; /*Is truncation needed? */ char diskChar; /*Disk name prefix */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called with '%s', dest width=%d\n", rn, a_srcbuff, a_dstwidth); fflush(scout_debugfd); } /* * Remember the disk label, if we've been passed such a thing. */ if (a_isLabeledDisk) diskChar = *a_srcbuff; /* * If the destination width will overrun the gtx string storage, * we automatically shorten up. */ if (a_dstwidth > GATOR_LABEL_CHARS) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Dest width (%d) > gtx buflen (%d), shrinking dest width\n", rn, a_dstwidth, GATOR_LABEL_CHARS); fflush(scout_debugfd); } a_dstwidth = GATOR_LABEL_CHARS; } /* * If our source string is too long, prepare for truncation. */ true_num_src_chars = strlen(a_srcbuff); if (true_num_src_chars >= a_dstwidth) { trunc_needed = 1; num_src_chars = a_dstwidth - 1; leftpad_chars = 0; if (!a_rightTrunc) a_srcbuff += (true_num_src_chars - num_src_chars); } else { trunc_needed = 0; num_src_chars = true_num_src_chars; /* * Compute the necessary left-padding. */ switch (a_justification) { case SCOUT_RIGHT_JUSTIFY: leftpad_chars = (a_dstwidth - 1) - num_src_chars; break; case SCOUT_LEFT_JUSTIFY: /* * This is the really easy one. */ leftpad_chars = 0; break; case SCOUT_CENTER: leftpad_chars = ((a_dstwidth - 1) - num_src_chars) / 2; break; default: fprintf(stderr, "[%s] Illegal justification command: %d", rn, a_justification); return (-1); } /*Switch on justification type */ } /* * Clear out the dest buffer, then place the source string at the * appropriate padding location. Remember to place a string * terminator at the end of the dest buffer, plus whatever truncation * may be needed. If we're left-truncating, we've already shifted * the src buffer appropriately. */ strncpy(a_dstbuff, scout_blankline, a_dstwidth); strncpy(a_dstbuff + leftpad_chars, a_srcbuff, num_src_chars); *(a_dstbuff + a_dstwidth - 1) = '\0'; if (trunc_needed) { if (a_rightTrunc) *(a_dstbuff + a_dstwidth - 2) = '*'; /*Truncate on the right */ else { if (a_isLabeledDisk) { *a_dstbuff = diskChar; *(a_dstbuff + 1) = ':'; *(a_dstbuff + 2) = '*'; /*Truncate on the left, disk */ } else *a_dstbuff = '*'; /*Truncate on the left, non-disk */ } } /*Handle truncations */ /* * Return the good news. */ return (0); } /*mini_justify */ /*------------------------------------------------------------------------ * scout_SetNonDiskLightLine * * Description: * Given a mini-line and a line number, place all non-disk lights * on that line. * * Arguments: * struct mini_line *a_srvline : Ptr to server descriptor. * int a_linenum : Line number to move to. * * Returns: * Nothing. * * Environment: * The light's location is stored not only in the onode, but in * the light's rock, so we have to change both sets of value. * * Side Effects: * As described. *------------------------------------------------------------------------*/ static void scout_SetNonDiskLightLine(a_srvline, a_linenum) struct mini_line *a_srvline; int a_linenum; { /*scout_SetNonDiskLightLine */ static char rn[] = "scout_SetNonDiskLightLine"; /*Routine name */ struct gator_lightobj *nondisk_lightdata; /*Non-disk light data field */ struct gwin_strparams *nondisk_strparams; /*Associated string params */ /* * Do the exact same operation for each non-disk light in the record. */ a_srvline->currConns_lp->o_y = a_linenum; nondisk_lightdata = (struct gator_lightobj *)(a_srvline->currConns_lp->o_data); nondisk_strparams = (struct gwin_strparams *)(nondisk_lightdata->llrock); nondisk_strparams->y = a_linenum; a_srvline->fetches_lp->o_y = a_linenum; nondisk_lightdata = (struct gator_lightobj *)(a_srvline->fetches_lp->o_data); nondisk_strparams = (struct gwin_strparams *)(nondisk_lightdata->llrock); nondisk_strparams->y = a_linenum; a_srvline->stores_lp->o_y = a_linenum; nondisk_lightdata = (struct gator_lightobj *)(a_srvline->stores_lp->o_data); nondisk_strparams = (struct gwin_strparams *)(nondisk_lightdata->llrock); nondisk_strparams->y = a_linenum; a_srvline->workstations_lp->o_y = a_linenum; nondisk_lightdata = (struct gator_lightobj *)(a_srvline->workstations_lp->o_data); nondisk_strparams = (struct gwin_strparams *)(nondisk_lightdata->llrock); nondisk_strparams->y = a_linenum; a_srvline->srvName_lp->o_y = a_linenum; nondisk_lightdata = (struct gator_lightobj *)(a_srvline->srvName_lp->o_data); nondisk_strparams = (struct gwin_strparams *)(nondisk_lightdata->llrock); nondisk_strparams->y = a_linenum; } /*scout_SetNonDiskLightLine */ /*------------------------------------------------------------------------ * scout_RecomputeLightLocs * * Description: * Given a pointer to a server record, recompute its disk light * locations (and keep proper track of the number of screen lines * required for the server record). * * Arguments: * struct mini_line *a_srvline : Ptr to server descriptor. * * Returns: * 0 if anything went wrong, * else the number of lines used by this server record. * * Environment: * One or more records have joined or left the used light list * for this server. We're not sure which ones, so we recompute * them all. We may also have had a width change in the gtx * frame. The base_line field in the server record is guaranteed * to be correct at this point. * * Side Effects: * As described. *------------------------------------------------------------------------*/ static int scout_RecomputeLightLocs(a_srvline) struct mini_line *a_srvline; { /*scout_RecomputeLightLocs */ static char rn[] = "scout_RecomputeLightLocs"; /*Routine name */ int lights_per_line; /*# lights/line */ int lights_this_line; /*# lights on cur line */ int curr_idx; /*Current disk light idx */ struct scout_disk *sc_disk; /*Ptr to disk record array */ int lines_for_server; /*Num lines in server record */ int curr_line; /*Current line being filled */ int curr_x; /*Current x value for light */ struct gator_lightobj *disk_lightdata; /*Disk light data field */ struct gwin_strparams *disk_strparams; /*String params for disk light */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called\n", rn); fflush(scout_debugfd); } /* * If we haven't yet computed the column for the leftmost disk light, * do it now. */ if (scout_DiskLightLeftCol == 0) scout_DiskLightLeftCol = LIGHTOBJ_CONN_WIDTH + LIGHTOBJ_FETCH_WIDTH + LIGHTOBJ_STORE_WIDTH + LIGHTOBJ_WK_WIDTH + LIGHTOBJ_SRVNAME_WIDTH + 5; /* * Calculate how many disk light objects can fit in one line. */ lights_per_line = (scout_frameDims.maxx - scout_DiskLightLeftCol) / (LIGHTOBJ_DISK_WIDTH + 1); if (scout_debug) { fprintf(scout_debugfd, "[%s] %d lights per line\n", rn, lights_per_line); fflush(scout_debugfd); } /* * Sweep through the used disk light list, computing the location * for each. */ lights_this_line = 0; curr_idx = a_srvline->used_head; lines_for_server = 1; curr_line = a_srvline->base_line; curr_x = scout_DiskLightLeftCol; while (curr_idx != SCOUT_NIL) { /* * Bump the number of lines for the server if we've already * filled up the current line. */ if (lights_this_line >= lights_per_line) { lights_this_line = 0; lines_for_server++; curr_line++; curr_x = scout_DiskLightLeftCol; } /*Current line filled up */ /* * Set the current disk light's location. */ sc_disk = a_srvline->disks; sc_disk[curr_idx].disk_lp->o_x = curr_x; sc_disk[curr_idx].disk_lp->o_y = curr_line; disk_lightdata = (struct gator_lightobj *)(sc_disk[curr_idx].disk_lp->o_data); disk_strparams = (struct gwin_strparams *)(disk_lightdata->llrock); disk_strparams->x = curr_x; disk_strparams->y = curr_line; if (scout_debug) { fprintf(scout_debugfd, "[%s] Disk light at index %d located at [%d, %d]\n", rn, curr_idx, curr_x, curr_line); fflush(scout_debugfd); } /* * Record the inclusion of the light and move on to the next * light, if any. */ lights_this_line++; curr_x += LIGHTOBJ_DISK_WIDTH + 1; curr_idx = sc_disk[curr_idx].next; } /*Update each used disk light */ /* * Remember to record the (possibly new) number of lines in the * server record before returning the value of that field. */ if (a_srvline->num_lines != lines_for_server) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Server previously had %d screen lines; now changed\n", rn, a_srvline->num_lines); fflush(scout_debugfd); } a_srvline->num_lines = lines_for_server; } if (scout_debug) { fprintf(scout_debugfd, "[%s] Server has %d screen lines\n", rn, a_srvline->num_lines); fflush(scout_debugfd); } return (a_srvline->num_lines); } /*scout_RecomputeLightLocs */ /*------------------------------------------------------------------------ * scout_FindUsedDisk * * Description: * Given a single-letter disk name and a pointer to the current server * record, look for a used disk record with that name within the server. * If we can't find one, we create and incorporate one, and return that * fact to our caller. * * Arguments: * char a_diskname : Single-char disk name. * struct mini_line *a_srvline : Ptr to server descriptor. * int *a_record_added : Was a new record added? * * Returns: * Index of matching used disk record, * SCOUT_NIL otherwise. * * Return via parameter: * a_record_added set to 1 iff record was added to the used disk list. * * Environment: * Used disk records are kept in alphabetical order by the single-char * disk name. Should a matching used disk record not be found, one is * pulled from the free pool. * * Side Effects: * An entry may be pulled off the free list and inserted into the * used list. This entry is placed in the update list for the * current gtx frame (at least not by this routine). *------------------------------------------------------------------------*/ static int scout_FindUsedDisk(a_diskname, a_srvline, a_record_added) char *a_diskname; struct mini_line *a_srvline; int *a_record_added; { /*scout_FindUsedDisk */ static char rn[] = "scout_FindUsedDisk"; /*Routine name */ int curr_idx; /*Disk record index */ int append_idx; /*Index to append after */ int new_idx; /*Index of new used record */ struct scout_disk *sc_disk; /*Ptr to disk record */ int code; /*Function return value */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called\n", rn); fflush(scout_debugfd); } /* * Sweep through the used disk records, looking for a match. */ curr_idx = a_srvline->used_head; append_idx = SCOUT_NIL; sc_disk = a_srvline->disks; if (scout_debug) { fprintf(scout_debugfd, "[%s] Scanning existing used disk entries for disk '%s'\n", rn, a_diskname); fflush(scout_debugfd); } while (curr_idx != SCOUT_NIL) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Disk %d is named '%s'\n", rn, curr_idx, sc_disk[curr_idx].name); fflush(scout_debugfd); } if (strcmp(sc_disk[curr_idx].name, a_diskname) == 0) { /* * We found it! Bug out. */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Match found\n", rn); fflush(scout_debugfd); } return (curr_idx); } /* * If we are alphabetically past the given disk name, we * know that we won't find it in the used disk list; we * also have the append index set correctly. */ if (strcmp(a_diskname, sc_disk[curr_idx].name) < 0) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Disk '%s' can't be here\n", rn, a_diskname); fflush(scout_debugfd); } break; } /* * There's still hope we'll find it. Move on to the next used * disk record, keeping this index as the best candidate so far * for appending a missing entry. */ append_idx = curr_idx; curr_idx = sc_disk[curr_idx].next; } /*Look for match */ /* * We didn't find the record we wanted, which means we'll pull a * record out of the free pool for it. If we didn't find a place * to append it, we then insert it at the beginning of the queue. */ if (a_srvline->free_head == SCOUT_NIL) return (SCOUT_NIL); *a_record_added = 1; new_idx = a_srvline->free_head; if (scout_debug) { fprintf(scout_debugfd, "[%s] Choosing free index %d for new entry\n", rn, new_idx); fflush(scout_debugfd); } a_srvline->free_head = sc_disk[new_idx].next; if (a_srvline->free_head == SCOUT_NIL) a_srvline->free_tail = SCOUT_NIL; /* * Fill in the new record. */ sc_disk[new_idx].active = 0; sc_disk[new_idx].name = a_diskname; /* * Insert the new record where it belongs on the used disk list. */ if (append_idx == SCOUT_NIL) { /* * It belongs at the beginning of the list. */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Inserted at used disk head\n", rn); fflush(scout_debugfd); } sc_disk[new_idx].next = a_srvline->used_head; sc_disk[new_idx].prev = SCOUT_NIL; a_srvline->used_head = new_idx; if (a_srvline->used_tail == SCOUT_NIL) a_srvline->used_tail = new_idx; } else { if (scout_debug) { fprintf(scout_debugfd, "[%s] Entry appended after index %d\n", rn, append_idx); fflush(scout_debugfd); } sc_disk[new_idx].prev = append_idx; sc_disk[new_idx].next = sc_disk[append_idx].next; sc_disk[append_idx].next = new_idx; if (sc_disk[new_idx].next == SCOUT_NIL) a_srvline->used_tail = new_idx; else sc_disk[sc_disk[new_idx].next].prev = new_idx; }; /* * Add the new used disk light object to the display list for * the scout frame. */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Adding disk light at index %d to display list\n", rn, new_idx); fflush(scout_debugfd); } code = gtxframe_AddToList(scout_frame, sc_disk[new_idx].disk_lp); if (code) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Can't add to display list, code is %d\n", rn, code); fflush(scout_debugfd); } } return (new_idx); } /*scout_FindUsedDisk */ /*------------------------------------------------------------------------ * scout_RemoveInactiveDisk * * Description: * Given a server record and a used disk index, remove the disk * record from the used list, put it on the free list, and remove * it from the gtx frame update list. * * Arguments: * struct mini_line *a_srvline : Ptr to server descriptor. * int a_used_idx : Index of used disk record. * * Returns: * Nothing. * * Environment: * Formerly-used disk records are returned to the free pool. * * Side Effects: * Free and used disk record lists are modified for this server. * The disk record in question is pulled off the gtx update list * for the frame. *------------------------------------------------------------------------*/ static void scout_RemoveInactiveDisk(a_srvline, a_used_idx) struct mini_line *a_srvline; int a_used_idx; { /*scout_RemoveInactiveDisk */ static char rn[] = "scout_RemoveInactiveDisk"; /*Routine name */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called\n", rn); fflush(scout_debugfd); } /*code = gtxframe_RemoveFromList(scout_frame->window, lightobj); */ } /*scout_RemoveInactiveDisk */ /*------------------------------------------------------------------------ * mini_PrintDiskStats * * Description: * Given server indexing and light object information, a pointer * to a set of statistics, and whether the probe that produced these * stats succeeded or not, print out the stats in a nice way. * * Arguments: * struct mini_line *a_srvline : Ptr to server descriptor. * struct ProbeViceStatistics *a_stats : Ptr to current stats. * int a_probeOK : Was the probe OK? * int a_width_changed : Has the frame width changed? * int a_fix_line_num : Is the line number wrong? * int a_delta_line_num : Change in line number. * * Returns: * 0 if something went wrong, * else the number of lines taken up by this server record. * * Environment: * Nothing interesting. * * Side Effects: * As advertised. *------------------------------------------------------------------------*/ static int mini_PrintDiskStats(a_srvline, a_stats, a_probeOK, a_width_changed, a_fix_line_num, a_delta_line_num) struct mini_line *a_srvline; struct ProbeViceStatistics *a_stats; int a_probeOK; int a_fix_line_num; int a_delta_line_num; { /*mini_PrintDiskStats */ static char rn[] = "mini_PrintDiskStats"; /*Routine name */ int code; /*Return code */ char s[128]; /*String buffer */ struct onode *curr_disklight; /*Ptr to current disk light */ struct onode *srvname_light; /*Ptr to server name light */ ViceDisk *curr_diskstat; /*Ptr to current disk stat */ int curr_disk; /*Current disk stat number */ int used_disk_idx; /*Used disk index */ int next_used_idx; /*Ditto */ int pastthreshold; /*Was disk past threshold? */ struct gator_lightobj *diskdata; /*Private light data */ struct gwin_strparams *disk_strparams; /*String params for disk light */ char *diskname = 0; /*Name of disk */ int found_idx; /*Idx of matching disk */ char *srv_name; /*Server name */ struct scout_disk *sc_disk; /*Ptr to scout disk desc */ int fix_light_locs; /*Recompute disk light locs? */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called\n", rn); fflush(scout_debugfd); } /* * Remember the current server's print name, don't recompute light * locations yet. */ srvname_light = a_srvline->srvName_lp; srv_name = ((struct gator_lightobj *)(srvname_light->o_data))->label; fix_light_locs = 0; if (scout_debug) { fprintf(scout_debugfd, "[%s] Value of a_delta_line_num is %d\n", rn, a_delta_line_num); fflush(scout_debugfd); } /* * If the probe failed, we simply blank out all the used disk * objects. Note: a NON-ZERO value of a_probeOK implies failure. */ if (a_probeOK) { used_disk_idx = a_srvline->used_head; while (used_disk_idx != SCOUT_NIL) { /* * Point to the current used disk's light, blank out its * contents, and make sure highlighting is turned off. We * also take this opportunity to fix the line numbers if * needed. */ curr_disklight = a_srvline->disks[used_disk_idx].disk_lp; diskdata = (struct gator_lightobj *)(curr_disklight->o_data); if (scout_debug) { fprintf(scout_debugfd, "[%s] Prev value of disk light %d: '%s'\n", rn, used_disk_idx, diskdata->label); fflush(scout_debugfd); } code = mini_justify(" ", /*Src buffer */ diskdata->label, /*Dest buffer */ LIGHTOBJ_DISK_WIDTH, /*Dest's width */ SCOUT_RIGHT_JUSTIFY, /*Right-justify */ SCOUT_LEFT_TRUNC, /*Left-truncate */ SCOUT_ISNT_LDISK); /*Not a labeled disk */ code = gator_light_set(curr_disklight, 0); if (a_fix_line_num) { curr_disklight->o_y += a_delta_line_num; disk_strparams = (struct gwin_strparams *)(diskdata->llrock); disk_strparams->y += a_delta_line_num; } /* * Advance to next used disk, if any. */ used_disk_idx = a_srvline->disks[used_disk_idx].next; } /*Blank out disk name field */ /* * If the frame width has changed, we have to recompute all disk * light locations. After that, the number of lines in the server * record will be accurate, and we return them. */ if (a_width_changed) scout_RecomputeLightLocs(a_srvline); return (a_srvline->num_lines); } /*Probe failed for the server */ /* * Probe was successful. Sweep through the statistics records, * and put up all values having to do with AFS partitions. First, * mark all used disk objects for this server as inactive and fix * their line numbers if needed. */ sc_disk = a_srvline->disks; used_disk_idx = a_srvline->used_head; while (used_disk_idx != SCOUT_NIL) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Marking used disk %d inactive\n", rn, used_disk_idx); fflush(scout_debugfd); } sc_disk = (a_srvline->disks) + used_disk_idx; sc_disk->active = 0; used_disk_idx = sc_disk->next; if (a_fix_line_num) { sc_disk->disk_lp->o_y += a_delta_line_num; diskdata = (struct gator_lightobj *)(sc_disk->disk_lp->o_data); disk_strparams = (struct gwin_strparams *)(diskdata->llrock); disk_strparams->y += a_delta_line_num; } } /*Mark used disks inactive */ curr_diskstat = (ViceDisk *) a_stats->Disk; for (curr_disk = 0; curr_disk < VOLMAXPARTS; curr_disk++) { /* * An AFS partition name must be prefixed by `/vicep`. */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Disk stats at 0x%x for disk '%s'\n", rn, curr_diskstat, curr_diskstat->Name); fflush(scout_debugfd); } if (strncmp("/vice", curr_diskstat->Name, 5) == 0) { /* * Pull out the single-letter name (actually, abbreviation) * of the disk and look for such an entry in the used disks. */ diskname = &curr_diskstat->Name[6]; found_idx = scout_FindUsedDisk(diskname, /*1-char name */ a_srvline, /*Server record */ &fix_light_locs); /*Recompute? */ if (found_idx == SCOUT_NIL) { fprintf(stderr, "[%s] Can't display /vicep%s on server '%s'\n", rn, diskname, srv_name); } else { /* * Found (or created) record for this disk. Fill in the single- * letter name of the disk followed by the number of free blocks. * Turn the disk light on if the number of free blocks exceeds * the threshold the user set, either % used or min free blocks. */ sprintf(s, "%s:%d", diskname, curr_diskstat->BlocksAvailable); if (scout_attn_disk_mode == SCOUT_DISKM_PCUSED) { if ((float) (curr_diskstat->TotalBlocks - curr_diskstat->BlocksAvailable) / (float)(curr_diskstat->TotalBlocks) > scout_attn_disk_pcused) pastthreshold = 1; else pastthreshold = 0; } else pastthreshold = (curr_diskstat->BlocksAvailable < scout_attn_disk_minfree) ? 1 : 0; sc_disk = (a_srvline->disks) + found_idx; sc_disk->active = 1; diskdata = (struct gator_lightobj *)(sc_disk->disk_lp->o_data); if (scout_debug) { fprintf(scout_debugfd, "[%s] Justifying %s for disk idx %d (prev value: '%s')\n", rn, s, found_idx, diskdata->label); fflush(scout_debugfd); } code = mini_justify(s, /*Src buffer */ diskdata->label, /*Dest buffer */ LIGHTOBJ_DISK_WIDTH, /*Dest's width */ SCOUT_LEFT_JUSTIFY, /*Left-justify */ SCOUT_LEFT_TRUNC, /*Left-truncate */ SCOUT_IS_LDISK); /*Labeled disk */ code = gator_light_set(sc_disk->disk_lp, pastthreshold); } /*Found disk record */ } /*Found AFS disk name */ /* * Advance to the next disk statistics record. */ curr_diskstat++; } /*For each statistics record */ /* * We've now pulled out all the disk statistics from the probe. * See if any used disks that were there from the last time are * now gone. If so, we remove them. */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Scanning used disk records for inactive entries\n", rn); fflush(scout_debugfd); } used_disk_idx = a_srvline->used_head; while (used_disk_idx != SCOUT_NIL) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Examining entry at index %d\n", rn, used_disk_idx); fflush(scout_debugfd); } sc_disk = (a_srvline->disks) + used_disk_idx; next_used_idx = sc_disk->next; if (!(sc_disk->active)) { scout_RemoveInactiveDisk(a_srvline, /*Server record */ used_disk_idx); /*Disk index to nuke */ fix_light_locs = 1; } used_disk_idx = next_used_idx; } /*Remove inactive used disks */ /* * If we've had to add or remove disks to/from the used list, * or if the frame width has changed, we recompute the light * locations before returning. */ if (fix_light_locs || a_width_changed) scout_RecomputeLightLocs(a_srvline); /* * Return the (possibly new) size of the current server record. */ return (a_srvline->num_lines); } /*mini_PrintDiskStats */ /*------------------------------------------------------------------------ * FS_Handler * * Description: * Handler routine passed to the fsprobe module. This handler is * called immediately after a poll of all the FileServers has taken * place. Its job is to write out selected data to the scout * screen. * * Arguments: * None. * * Returns: * 0 on success, * -1 otherwise. * * Environment: * All it needs to know is exported by the fsprobe module, namely * the data structure where the probe results are stored. * * Side Effects: * Recomputes disk light locations in response to reshaping the * scout window or from adding/deleting disk lights to/from * individual servers. *------------------------------------------------------------------------*/ int FS_Handler() { /*FS_Handler */ static char rn[] = "FS_Handler"; /*Routine name */ int code; /*Return code */ struct ProbeViceStatistics *curr_stats; /*Ptr to current stats */ int *curr_probeOK; /*Ptr to current probeOK field */ int curr_srvidx; /*Current server index */ char s[128]; /*String buffer */ static char sblank[] = " "; /*Blank string buffer */ char *sp; /*Ptr to string buffer */ struct mini_line *curr_line; /*Current mini-line */ int curr_line_num; /*Current line number */ struct gator_lightobj *lightdata; /*Private light data */ int setting; /*Light setting (on or off) */ int old_width; /*Keep the old width value */ int width_changed; /*Has the frame width changed? */ int fix_line_num; /*Line number needs fixing */ int delta_line_num; /*Change in line number */ /* * See if the size of the scout frame has changed since the last * time. */ old_width = scout_frameDims.maxx; if (scout_debug) { fprintf(scout_debugfd, "[%s] Calling wop_getdimensions\n", rn); fflush(scout_debugfd); } WOP_GETDIMENSIONS(scout_frame->window, &scout_frameDims); width_changed = (old_width == scout_frameDims.maxx) ? 0 : 1; if (scout_debug) { fprintf(scout_debugfd, "[%s] Frame dimensions are %d rows, %d columns\n", rn, scout_frameDims.maxy, scout_frameDims.maxx); if (width_changed) fprintf(scout_debugfd, "[%s] Width has changed from %d columns\n", rn, old_width); fflush(scout_debugfd); } /* * Print out the selected fields for each server. We actually change * the light's label to the new data. */ curr_line = scout_screen.line; curr_stats = fsprobe_Results.stats; curr_probeOK = fsprobe_Results.probeOK; curr_line_num = curr_line->base_line; setting = 0; for (curr_srvidx = 0; curr_srvidx < scout_screen.numServers; curr_srvidx++) { /* * If the current server record is set up on the wrong line, fix * the non-disk light objects directly, and remember to fix the * disk light objects later on. */ if (curr_line->base_line != curr_line_num) { fix_line_num = 1; delta_line_num = curr_line_num - curr_line->base_line; curr_line->base_line = curr_line_num; scout_SetNonDiskLightLine(curr_line, curr_line_num); } else { fix_line_num = 0; delta_line_num = 0; } lightdata = (struct gator_lightobj *)(curr_line->currConns_lp->o_data); if (*curr_probeOK == 0) { sp = s; sprintf(sp, "%d", curr_stats->CurrentConnections); } else sp = sblank; code = mini_justify(sp, /*Src buffer */ lightdata->label, /*Dest buffer */ LIGHTOBJ_CONN_WIDTH, /*Dest's width */ SCOUT_RIGHT_JUSTIFY, /*Right-justify */ SCOUT_LEFT_TRUNC, /*Left-truncate */ SCOUT_ISNT_LDISK); /*Not a labeled disk */ if (scout_attn_conn != SCOUT_ATTN_NOTUSED && curr_stats->CurrentConnections >= scout_attn_conn) setting = 1; else setting = 0; code = gator_light_set(curr_line->currConns_lp, setting); lightdata = (struct gator_lightobj *)(curr_line->fetches_lp->o_data); if (*curr_probeOK == 0) { sp = s; sprintf(sp, "%d", curr_stats->TotalFetchs); } else sp = sblank; code = mini_justify(sp, /*Src buffer */ lightdata->label, /*Dest buffer */ LIGHTOBJ_FETCH_WIDTH, /*Dest's width */ SCOUT_RIGHT_JUSTIFY, /*Right-justify */ SCOUT_LEFT_TRUNC, /*Left-truncate */ SCOUT_ISNT_LDISK); /*Not a labeled disk */ if (scout_attn_fetch != SCOUT_ATTN_NOTUSED && curr_stats->TotalFetchs >= scout_attn_fetch) setting = 1; else setting = 0; code = gator_light_set(curr_line->fetches_lp, setting); lightdata = (struct gator_lightobj *)(curr_line->stores_lp->o_data); if (*curr_probeOK == 0) { sp = s; sprintf(sp, "%d", curr_stats->TotalStores); } else sp = sblank; code = mini_justify(sp, /*Src buffer */ lightdata->label, /*Dest buffer */ LIGHTOBJ_STORE_WIDTH, /*Dest's width */ SCOUT_RIGHT_JUSTIFY, /*Right-justify */ SCOUT_LEFT_TRUNC, /*Left-truncate */ SCOUT_ISNT_LDISK); /*Not a labeled disk */ if (scout_attn_store != SCOUT_ATTN_NOTUSED && curr_stats->TotalStores >= scout_attn_store) setting = 1; else setting = 0; code = gator_light_set(curr_line->stores_lp, setting); lightdata = (struct gator_lightobj *)(curr_line->workstations_lp->o_data); if (*curr_probeOK == 0) { sp = s; sprintf(sp, "%d", curr_stats->WorkStations); } else sp = sblank; code = mini_justify(sp, /*Src buffer */ lightdata->label, /*Dest buffer */ LIGHTOBJ_WK_WIDTH, /*Dest's width */ SCOUT_RIGHT_JUSTIFY, /*Right-justify */ SCOUT_LEFT_TRUNC, /*Left-truncate */ SCOUT_ISNT_LDISK); /*Not a labeled disk */ if (scout_attn_workstations != SCOUT_ATTN_NOTUSED && curr_stats->WorkStations >= scout_attn_workstations) setting = 1; else setting = 0; code = gator_light_set(curr_line->workstations_lp, setting); /* * We turn the server light on if there was an error in the * current probe (e.g., if the curr_probeOK field is non-zero. * (Don't forget to fix the light's line if it needs it). */ setting = (*curr_probeOK) ? 1 : 0; code = gator_light_set(curr_line->srvName_lp, setting); /* * Print out the disk statistics. The value returned is the * number of lines taken up by the server record (or 0 if * something went wrong). */ code = mini_PrintDiskStats(curr_line, /*Ptr to server line */ curr_stats, /*Fresh disk stats */ *curr_probeOK, /*Was probe OK? */ width_changed, /*Has the width changed? */ fix_line_num, /*Fix the line number? */ delta_line_num); /*Change in line number */ if (code == 0) { fprintf(stderr, "[%s] Error in printing out disk statistics\n", rn); return (-1); } else curr_line_num += code; /* * Advance the current mini_line, stats source, and probe success * indication. */ curr_line++; curr_stats++; curr_probeOK++; } /*for each server probed */ /* * Display the scout frame. */ sprintf(s, "Probe %d results", fsprobe_Results.probeNum); gtxframe_DisplayString(scout_frame, s); WOP_DISPLAY(scout_gwin); /* * Return the happy news. */ return (0); } /*FS_Handler */ /*------------------------------------------------------------------------ * init_mini_line * * Description: * Initialize each line in the mini_screen. * * Arguments: * struct sockaddr_in *a_skt : Ptr to server socket info. * int a_lineNum; : Line number being created. * struct mini_line *a_line : Ptr to mini_line to set up. * char *a_srvname : Printable server name. * * Returns: * 0 on success, * Error value otherwise. * * Environment: * Nothing interesting. * * Side Effects: * As advertised. *------------------------------------------------------------------------*/ static int init_mini_line(a_skt, a_lineNum, a_line, a_srvname) struct sockaddr_in *a_skt; int a_lineNum; struct mini_line *a_line; char *a_srvname; { /*init_mini_line */ static char rn[] = "init_mini_line"; /*Routine name */ int curr_x; /*Current X position */ int curr_y; /*Current Y position */ char s[128]; /*Scratch buffer */ int code; /*Return code */ struct gator_lightobj *lightdata; /*Private light data */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called for base line %d\n", rn, a_lineNum); fflush(scout_debugfd); } /* * Fill in the top fields (except the disk fields, which will be * done elsewhere), then create the light onodes. */ memcpy((char *)&(a_line->skt), (char *)a_skt, sizeof(struct sockaddr_in)); a_line->numDisks = 0; a_line->base_line = a_lineNum + scout_screen.base_line_num; a_line->num_lines = 1; curr_x = 0; curr_y = a_line->base_line; if ((a_line->currConns_lp = mini_initLightObject("Conns", curr_x, curr_y, LIGHTOBJ_CONN_WIDTH, scout_gwin)) == NULL) { fprintf(stderr, "[%s:%s] Can't create currConns light object\n", pn, rn); return (-1); } curr_x += LIGHTOBJ_CONN_WIDTH + 1; if ((a_line->fetches_lp = mini_initLightObject("Fetches", curr_x, curr_y, LIGHTOBJ_FETCH_WIDTH, scout_frame->window)) == NULL) { fprintf(stderr, "[%s:%s] Can't create fetches light object\n", pn, rn); return (-1); } curr_x += LIGHTOBJ_FETCH_WIDTH + 1; if ((a_line->stores_lp = mini_initLightObject("Stores", curr_x, curr_y, LIGHTOBJ_STORE_WIDTH, scout_frame->window)) == NULL) { fprintf(stderr, "[%s:%s] Can't create stores light object\n", pn, rn); return (-1); } curr_x += LIGHTOBJ_STORE_WIDTH + 1; if ((a_line->workstations_lp = mini_initLightObject("WrkStn", curr_x, curr_y, LIGHTOBJ_WK_WIDTH, scout_frame->window)) == NULL) { fprintf(stderr, "[%s:%s] Can't create workstations light object\n", pn, rn); return (-1); } curr_x += LIGHTOBJ_WK_WIDTH + 1; if ((a_line->srvName_lp = mini_initLightObject(a_srvname, curr_x, curr_y, LIGHTOBJ_SRVNAME_WIDTH, scout_frame->window)) == NULL) { fprintf(stderr, "[%s:%s] Can't create server name light object\n", pn, rn); return (-1); } sprintf(s, "%s", a_srvname); lightdata = (struct gator_lightobj *)(a_line->srvName_lp->o_data); code = mini_justify(s, /*Src buffer */ lightdata->label, /*Dest buffer */ LIGHTOBJ_SRVNAME_WIDTH, /*Dest's width */ SCOUT_CENTER, /*Centered */ SCOUT_RIGHT_TRUNC, /*Right-truncate */ SCOUT_ISNT_LDISK); /*Not a labeled disk */ if (code) { fprintf(stderr, "[%s] Can't center server name inside of light object\n", rn); return (code); } curr_x += LIGHTOBJ_SRVNAME_WIDTH + 1; if (scout_initDiskLightObjects(a_line, scout_frame->window)) { fprintf(stderr, "[%s:%s] Can't create disk light objects\n", pn, rn); return (-1); } /* * Finally, return the happy news. */ return (0); } /*init_mini_line */ /*------------------------------------------------------------------------ * execute_scout * * Description: * Workhorse routine that starts up the FileServer probe. * * Arguments: * int a_numservers : Length of above list. * struct cmd_item *a_srvname : List of FileServer machines to * monitor. * int a_pkg : Window package to use. * * Returns: * 0 on success, * Error value otherwise. * * Environment: * Nothing interesting. * * Side Effects: * As advertised. *------------------------------------------------------------------------*/ static int execute_scout(a_numservers, a_srvname, a_pkg) int a_numservers; struct cmd_item *a_srvname; int a_pkg; { /*execute_scout */ static char rn[] = "execute_scout"; /*Routine name */ static char fullsrvname[128]; /*Full server name */ register int code; /*Return code */ struct sockaddr_in *FSSktArray; /*Server socket array */ int sktbytes; /*Num bytes in above */ struct sockaddr_in *curr_skt; /*Ptr to current socket */ struct cmd_item *curr_item; /*Ptr to current cmd item */ struct hostent *he; /*Host entry */ struct mini_line *mini_lines; /*Ptr to all mini-lines */ struct mini_line *curr_line; /*Ptr to current line */ int i; /*Generic loop variable */ int mini_line_bytes; /*Num bytes in mini_lines */ struct timeval tv; /*Time structure */ int linenum; /*Current mini-line number */ #if 0 PROCESS pid; /*Main LWP process ID */ PROCESS gxlistener_ID; /*Input Server LWP process ID */ #endif /* 0 */ struct gator_lightobj *lightdata; /*Private light data */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called\n", rn); fflush(scout_debugfd); } /* * We have to initialize LWP support before we start up any of * our packages. */ #if 0 code = LWP_InitializeProcessSupport(LWP_NORMAL_PRIORITY, &pid); if (code) { fprintf(stderr, "[%s:%s] Can't initialize LWP\n", pn, rn); scout_CleanExit(code); } #endif /* 0 */ /* * Initialize the gtx package. */ #if 0 fprintf(stderr, "[%s:%s] Starting up gtx package\n", pn, rn); #endif /* 0 */ scout_gwin = gtx_Init(0, /*Don't start up InputServer yet */ -1); /*Type of window package */ if (scout_gwin == NULL) { fprintf(stderr, "[%s:%s] Call to gtx_Init() failed!\n", pn, rn); return (-1); } /* * Remember we've set up gtx so we can exit cleanly from now on. */ scout_gtx_initialized = 1; /* * Create the frame everything will go into, set it up as our only * frame for this window. */ scout_frame = gtxframe_Create(); if (scout_frame == (struct gtx_frame *)0) { fprintf(stderr, "[%s:%s] Call to gtxframe_Create() failed!\n", pn, rn); return (-1); } gtxframe_SetFrame(scout_gwin, scout_frame); WOP_GETDIMENSIONS(scout_frame->window, &scout_frameDims); /* * Allocate an array of sockets to describe each FileServer we'll be * watching. */ sktbytes = a_numservers * sizeof(struct sockaddr_in); FSSktArray = (struct sockaddr_in *)malloc(sktbytes); if (FSSktArray == (struct sockaddr_in *)0) { fprintf(stderr, "[%s] Can't malloc() %d sockaddrs (%d bytes) for the given servers\n", rn, a_numservers, sktbytes); scout_CleanExit(-1); } memset(FSSktArray, 0, sktbytes); /* * Sweep through the server names provided, filling in the socket * info for each. Take into account the fact that we may have a * base name associated for each. */ curr_item = a_srvname; curr_skt = FSSktArray; while (curr_item) { if (*scout_basename == '\0') sprintf(fullsrvname, "%s", curr_item->data); else sprintf(fullsrvname, "%s.%s", curr_item->data, scout_basename); he = hostutil_GetHostByName(fullsrvname); if (he == NULL) { fprintf(stderr, "[%s] Can't get host info for '%s'\n", rn, fullsrvname); return (-1); } memcpy(&(curr_skt->sin_addr.s_addr), he->h_addr, 4); #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV) curr_skt->sin_family = AF_INET; /*Internet family */ #else curr_skt->sin_family = htons(AF_INET); /*Internet family */ #endif curr_skt->sin_port = htons(7000); /*FileServer port */ /* * Bump our pointers. */ curr_item = curr_item->next; curr_skt++; } /*Build socket entry for each server */ /* * Create the set of mini-lines, one per server. */ mini_line_bytes = a_numservers * sizeof(struct mini_line); mini_lines = (struct mini_line *)malloc(mini_line_bytes); if (mini_lines == (struct mini_line *)0) { fprintf(stderr, "[%s] Can't malloc() %d bytes for %d screen lines\n", rn, mini_line_bytes, a_numservers); return (-1); } memset(mini_lines, 0, mini_line_bytes); /* * Set up each line in the mini_lines, creating and initializing * its light objects. */ scout_screen.base_line_num = 4; curr_line = mini_lines; curr_skt = FSSktArray; linenum = 0; curr_item = a_srvname; gtxframe_ClearList(scout_frame); /* * Create the light objects that server as banner lines. Remember * to take into account the server basename, if any, and the name * of the host that scout if running on, if that's wanted. */ if (scout_showhostname) { if (*scout_basename == '\0') sprintf(scout_Banner, "[%s] %s", scout_hostname, "Scout"); else sprintf(scout_Banner, "[%s] Scout for %s", scout_hostname, scout_basename); } else { if (*scout_basename == '\0') sprintf(scout_Banner, "%s", " Scout"); else sprintf(scout_Banner, " Scout for %s", scout_basename); } scout_banner0_lp = mini_initLightObject("Banner 0", /*Light name */ 0, /*X*/ 0, /*Y*/ scout_frameDims.maxx, /*Width */ scout_gwin); /*Window */ if (scout_banner0_lp != NULL) { lightdata = (struct gator_lightobj *)(scout_banner0_lp->o_data); code = mini_justify(scout_Banner, lightdata->label, scout_frameDims.maxx, SCOUT_CENTER, SCOUT_RIGHT_TRUNC, SCOUT_ISNT_LDISK); code = gator_light_set(scout_banner0_lp, 1); code = gtxframe_AddToList(scout_frame, scout_banner0_lp); /*Debugging */ if (scout_debug) fprintf(scout_debugfd, "[%s] Scout label is '%s', %d chars\n", rn, lightdata->label, strlen(lightdata->label)); } scout_banner1_lp = mini_initLightObject("Banner 1", /*Light name */ 0, /*X*/ 2, /*Y*/ scout_frameDims.maxx, /*Width */ scout_gwin); /*Window */ if (scout_banner1_lp != NULL) { if (scout_attn_disk_mode == SCOUT_DISKM_PCUSED) { sprintf(scout_Banner, "%s > %s%% used", scout_LightLabels, scout_attn_disk_pcusedstr); } else { sprintf(scout_Banner, "%s < %d blocks free", scout_LightLabels, scout_attn_disk_minfree); } lightdata = (struct gator_lightobj *)(scout_banner1_lp->o_data); code = mini_justify(scout_Banner, lightdata->label, scout_frameDims.maxx, SCOUT_LEFT_JUSTIFY, SCOUT_RIGHT_TRUNC, SCOUT_ISNT_LDISK); code = gtxframe_AddToList(scout_frame, scout_banner1_lp); } scout_banner2_lp = mini_initLightObject("Banner 2", /*Light name */ 0, /*X*/ 3, /*Y*/ scout_frameDims.maxx, /*Width */ scout_gwin); /*Window */ if (scout_banner2_lp != NULL) { lightdata = (struct gator_lightobj *)(scout_banner2_lp->o_data); code = mini_justify(scout_LightLabelUnd, lightdata->label, scout_frameDims.maxx, SCOUT_LEFT_JUSTIFY, SCOUT_RIGHT_TRUNC, SCOUT_ISNT_LDISK); code = gtxframe_AddToList(scout_frame, scout_banner2_lp); } for (i = 0; i < a_numservers; i++) { code = init_mini_line(curr_skt, linenum, curr_line, curr_item->data); if (code) { fprintf(stderr, "[%s] Can't initialize line for server %d\n", rn, i); return (-1); } curr_skt++; curr_line++; linenum++; curr_item = curr_item->next; } /* * Now that all lines have been set up, we feed in the light items * created. Note: the disk lights are entered at a later time, * as they enter the used disk list for each server. */ curr_line = mini_lines; for (i = 0; i < a_numservers; i++) { code = gtxframe_AddToList(scout_frame, curr_line->currConns_lp); if (code) { fprintf(stderr, "[%s] Can't add client connections light to display list\n", rn); return (code); } code = gtxframe_AddToList(scout_frame, curr_line->fetches_lp); if (code) { fprintf(stderr, "[%s] Can't add fetches light to frame display list\n", rn); return (code); } code = gtxframe_AddToList(scout_frame, curr_line->stores_lp); if (code) { fprintf(stderr, "[%s] Can't add stores light to frame display list\n", rn); return (code); } code = gtxframe_AddToList(scout_frame, curr_line->workstations_lp); if (code) { fprintf(stderr, "[%s] Can't add workstation light to display list\n", rn); return (code); } code = gtxframe_AddToList(scout_frame, curr_line->srvName_lp); if (code) { fprintf(stderr, "[%s] Can't add server name light to display list\n", rn); return (code); } /* * Move down to the next server record. */ curr_line++; } /*Add lights in server records to display list */ #if 0 /* * Set up the minimal keymap. */ code = keymap_BindToString(scout_frame->keymap, /*Ptr to keymap */ "e", /*Key to bind */ ExitCmd, /*Cmd to execute */ NULL, /*Name */ NULL); /*Ptr to rock */ if (code) { fprintf(stderr, "[%s] Can't bind key `e', code is %d\n", rn, code); return (code); } #endif /* 0 */ /* * Finish setting up the overall mini_screen structure. */ scout_screen.numServers = a_numservers; scout_screen.line = mini_lines; WOP_GETDIMENSIONS(scout_frame->window, &scout_frameDims); /* * Start up the fsprobe package, which will gather FileServer * statistics for us on a regular basis. */ gtxframe_DisplayString(scout_frame, "Establishing File Server connection(s)..."); code = fsprobe_Init(a_numservers, /*Num FileServers to probe */ FSSktArray, /*FileServer socket array */ scout_probefreq, /*Probe frequency */ FS_Handler, /*Handler routine */ 0); /*Turn debugging output off */ #if 0 scout_debug); /*Turn debugging output off */ #endif /* 0 */ if (code) { fprintf(stderr, "[%s] Error returned by fsprobe_Init: %d\n", rn, code); return (-1); } /* * Start up the input server LWP for our window. */ #if 0 code = LWP_CreateProcess(gtx_InputServer, /*Fcn to start up */ 8192, /*Stack size in bytes */ LWP_NORMAL_PRIORITY, /*Priority */ (void *)scout_gwin, /*Params: Ptr to window */ "gx-listener", /*Name to use */ &gxlistener_ID); /*Returned LWP process ID */ #endif /* 0 */ code = gtx_InputServer(scout_gwin); if (code) { fprintf(stderr, "[%s] Error exit from gtx_InputServer(), error is %d\n", rn, code); scout_CleanExit(code); } /* * We fall into a loop, sleeping forever. */ while (1) { tv.tv_sec = 60 * 60; /*Sleep for an hour at a time */ tv.tv_usec = 0; code = select(0, /*Num fds */ 0, /*Descriptors ready for reading */ 0, /*Descriptors ready for writing */ 0, /*Descriptors with exceptional conditions */ &tv); /*Timeout structure */ } /*Sleep forever */ #if 0 /* * How did we get here? Oh, well, clean up our windows and * return sweetness and light anyway. */ WOP_CLEANUP(&scout_gwin); return (0); #endif /* 0 */ } /*execute_scout */ /*------------------------------------------------------------------------ * countServers * * Description: * Given a pointer to the list of servers we'll be polling, * compute the length of the list. * * Arguments: * struct cmd_item *a_firstItem : Ptr to first item in list. * * Returns: * Length of the above list. * * Environment: * Nothing interesting. * * Side Effects: * As advertised. *------------------------------------------------------------------------*/ static int countServers(a_firstItem) struct cmd_item *a_firstItem; { /*countServers */ int list_len; /*List length */ struct cmd_item *curr_item; /*Ptr to current item */ list_len = 0; curr_item = a_firstItem; /* * Count 'em up. */ while (curr_item) { list_len++; curr_item = curr_item->next; } /* * Return our tally. */ return (list_len); } /*countServers */ /*------------------------------------------------------------------------ * scout_AdoptThresholds * * Description: * Parse and adopt one or more threshold values, as read off the * command line. * * Arguments: * struct cmd_item *a_thresh_item : Ptr to item on command-line * threshold list. * * Returns: * Nothing (but may exit the entire program on error!) * * Environment: * Valid keywords are: * conn, disk, fetch, store, ws * The disk value, if it has a % sign, signifies that attention * will be triggered when the disk is more than that percentage * full; otherwise, it will specify the minimum number of free * blocks. * * Side Effects: * As specified. *------------------------------------------------------------------------*/ static void scout_AdoptThresholds(a_thresh_item) struct cmd_item *a_thresh_item; { /*scout_AdoptThresholds */ static char rn[] = "scout_AdoptThresholds"; /*Routine name */ struct cmd_item *curr_item; /*Current item */ char *curr_name; /*Current name half of pair */ char *curr_value; /*Current value half of pair */ int diskval_len; /*Length of disk attn value */ curr_item = a_thresh_item; while (curr_item) { /* * If there isn't a corresponding value for the current * attention field, bitch & die. */ if (curr_item->next == (struct cmd_item *)0) { printf("[%s] No threshold value given for '%s'\n", rn, curr_item->data); scout_CleanExit(-1); } curr_name = curr_item->data; curr_value = curr_item->next->data; if (strcmp(curr_name, "conn") == 0) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Setting conn attn value to %d (default %d)\n", rn, curr_value, scout_attn_conn); fflush(scout_debugfd); } scout_attn_conn = atoi(curr_value); } else if (strcmp(curr_name, "disk") == 0) { /* * If there's a '%' as the last character in the value, * we use percentage mode. */ diskval_len = strlen(curr_value); if (curr_value[diskval_len - 1] == '%') { curr_value[diskval_len - 1] = '\0'; if (scout_debug) { fprintf(scout_debugfd, "[%s] New disk attn value: 0.%s used (default %f)\n", rn, curr_value, scout_attn_disk_pcused); fflush(scout_debugfd); } sprintf(scout_attn_disk_pcusedstr, "%s", curr_value); scout_attn_disk_pcused = ((float)(atoi(curr_value))) / ((float)(100)); } /*Percentage mode */ else { if (scout_debug) { fprintf(scout_debugfd, "[%s] New disk attn value: %s min free (default %d)\n", rn, atoi(curr_value), scout_attn_disk_pcused); fflush(scout_debugfd); } scout_attn_disk_mode = SCOUT_DISKM_MINFREE; scout_attn_disk_minfree = atoi(curr_value); } /*Min free blocks mode */ } else if (strcmp(curr_name, "fetch") == 0) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Setting fetch attn value to %d (default %d)\n", rn, curr_value, scout_attn_fetch); fflush(scout_debugfd); } scout_attn_fetch = atoi(curr_value); } else if (strcmp(curr_name, "store") == 0) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Setting store attn value to %d (default %d)\n", rn, curr_value, scout_attn_store); fflush(scout_debugfd); } scout_attn_store = atoi(curr_value); } else if (strcmp(curr_name, "ws") == 0) { if (scout_debug) { fprintf(scout_debugfd, "[%s] Setting workstation attn value to %d (default %d)\n", rn, curr_value, scout_attn_workstations); fflush(scout_debugfd); } scout_attn_workstations = atoi(curr_value); } else { printf("[%s] Unknown attention item: '%s'\n", rn, curr_item->data); scout_CleanExit(-1); } /* * Advance past the just-processed pair. */ curr_item = curr_item->next->next; } /*Interpret each name-value pair */ } /*scout_AdoptThresholds */ /*------------------------------------------------------------------------ * scoutInit * * Description: * Routine called when Scout is invoked, responsible for basic * initialization, command line parsing, and calling the * routine that does all the work. * * Arguments: * as : Command syntax descriptor. * arock : Associated rock (not used here). * * Returns: * Zero (but may exit the entire program on error!) * * Environment: * Nothing interesting. * * Side Effects: * Initializes this program. *------------------------------------------------------------------------*/ static int scoutInit(struct cmd_syndesc *as, void *arock) { /*scoutInit */ static char rn[] = "scoutInit"; /*Routine name */ int code; /*Return code */ int wpkg_to_use; /*Window package to use */ int server_count; /*Number of servers to watch */ char *debug_filename; /*Name of debugging output file */ if (scout_debug) { fprintf(scout_debugfd, "[%s] Called\n", rn); fflush(scout_debugfd); } if (as->parms[P_DEBUG].items != 0) { scout_debug = 1; debug_filename = as->parms[P_DEBUG].items->data; scout_debugfd = fopen(debug_filename, "w"); if (scout_debugfd == (FILE *) 0) { printf("[%s] Can't open debugging file '%s'!\n", rn, debug_filename); scout_CleanExit(-1); } fprintf(scout_debugfd, "[%s] Writing to Scout debugging file '%s'\n", rn, debug_filename); } #if 0 wpkg_to_use = atoi(as->parms[P_PACKAGE].items->data); #endif /* 0 */ wpkg_to_use = 2; /*Always use curses for now */ #if 0 fprintf(stderr, "[%s:%s] Using graphics package %d: ", pn, rn, wpkg_to_use); switch (wpkg_to_use) { case GATOR_WIN_CURSES: fprintf(stderr, "curses\n"); break; case GATOR_WIN_DUMB: fprintf(stderr, "dumb terminal\n"); break; case GATOR_WIN_X11: fprintf(stderr, "X11\n"); break; default: fprintf(stderr, "Illegal graphics package: %d\n", wpkg_to_use); scout_CleanExit(-1); } /*end switch (wpkg_to_use) */ #endif /* 0 */ if (as->parms[P_FREQ].items != 0) scout_probefreq = atoi(as->parms[P_FREQ].items->data); else scout_probefreq = 60; /* * See if we've been fed a base server name. */ if (as->parms[P_BASE].items != 0) sprintf(scout_basename, "%s", as->parms[P_BASE].items->data); else *scout_basename = '\0'; /* * Count the number of servers we've been asked to monitor. */ server_count = countServers(as->parms[P_SERVER].items); /* * Create a line of blanks, a generally-useful thing. */ sprintf(scout_blankline, "%255s", " "); /* * Pull in the name of the host we're executing on if we've been * asked to. If we can't get the name, we provide a default. */ if (as->parms[P_HOST].items != 0) { scout_showhostname = 1; *scout_hostname = '\0'; code = gethostname(scout_hostname, 128); if (code) sprintf(scout_hostname, "%s", "*No Hostname*"); } /* * Pull in any and all attention/highlighting thresholds. */ if (as->parms[P_ATTENTION].items != 0) scout_AdoptThresholds(as->parms[P_ATTENTION].items); /* * Now, drive the sucker. */ code = execute_scout(server_count, /*Num servers */ as->parms[P_SERVER].items, /*Ptr to srv names */ wpkg_to_use); /*Graphics pkg */ if (code) { fprintf(stderr, "[%s] Error executing scout: %d\n", rn, code); scout_CleanExit(-1); } /* * We initialized (and ran) correctly, so return the good news. */ return (0); } /*scoutInit */ #include "AFS_component_version_number.c" main(argc, argv) int argc; char **argv; { /*main */ register afs_int32 code; /*Return code */ register struct cmd_syndesc *ts; /*Ptr to cmd line syntax descriptor */ #ifdef AFS_AIX32_ENV /* * The following signal action for AIX is necessary so that in case of a * crash (i.e. core is generated) we can include the user's data section * in the core dump. Unfortunately, by default, only a partial core is * generated which, in many cases, isn't too useful. */ struct sigaction nsa; sigemptyset(&nsa.sa_mask); nsa.sa_handler = SIG_DFL; nsa.sa_flags = SA_FULLDUMP; sigaction(SIGSEGV, &nsa, NULL); #endif /* * Set up the commands we understand. */ ts = cmd_CreateSyntax("initcmd", scoutInit, NULL, "initialize the program"); cmd_AddParm(ts, "-server", CMD_LIST, CMD_REQUIRED, "FileServer name(s) to monitor"); cmd_AddParm(ts, "-basename", CMD_SINGLE, CMD_OPTIONAL, "base server name"); #if 0 cmd_AddParm(ts, "-package", CMD_SINGLE, CMD_REQUIRED, "Graphics package to use"); #endif /* 0 */ cmd_AddParm(ts, "-frequency", CMD_SINGLE, CMD_OPTIONAL, "poll frequency, in seconds"); cmd_AddParm(ts, "-host", CMD_FLAG, CMD_OPTIONAL, "show name of host you're running on"); cmd_AddParm(ts, "-attention", CMD_LIST, CMD_OPTIONAL, "specify attention (highlighting) level"); cmd_AddParm(ts, "-debug", CMD_SINGLE, CMD_OPTIONAL, "turn debugging output on to the named file"); /* * Parse command-line switches & execute the test, then get the heck * out of here. */ code = cmd_Dispatch(argc, argv); if (code) { #if 0 fprintf(stderr, "[%s:%s] Call to cmd_Dispatch() failed; code is %d\n", pn, rn, code); #endif /* 0 */ scout_CleanExit(1); } else scout_CleanExit(0); return 0; /* not reachable */ } /*main */