X-Git-Url: http://git.linux-vserver.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=util-vserver%2Fsrc%2Fvserver-stat.c;h=17425c1d9f7a02106e9753e00f155e4f76c1f041;hb=2c153db573d5648ba62d29ae6f8eed6a87b8c9c4;hp=9436e731691d3b65f68d0043cabe35e845ed1d4a;hpb=9dbaad751b3abd6eddf6f0274fb136fb0d0dbe97;p=util-vserver.git diff --git a/util-vserver/src/vserver-stat.c b/util-vserver/src/vserver-stat.c index 9436e73..17425c1 100644 --- a/util-vserver/src/vserver-stat.c +++ b/util-vserver/src/vserver-stat.c @@ -17,23 +17,16 @@ // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -/* - vserver-stat help you to see all the active context currently in the kernel - with some useful stat - - Changelog: - - 2003-01-08 Jacques Gelinas: Shows vserver description - 2002-02-28 Jacques Gelinas: Use dynamic system call - 2002-06-05 Martial Rioux : fix memory output error - 2002-12-05 Martial Rioux : fix output glitch - 2001-11-29 added uptime/ctx stat - 2001-11-20 added vmsize, rss, stime and utime stat -*/ #ifdef HAVE_CONFIG_H # include #endif +#include "vserver.h" +#include "util.h" +#include "internal.h" + +#include + #include #include #include @@ -46,468 +39,490 @@ #include #include #include +#include +#include + +#define ENSC_WRAPPERS_DIRENT 1 +#define ENSC_WRAPPERS_VSERVER 1 +#define ENSC_WRAPPERS_FCNTL 1 +#define ENSC_WRAPPERS_UNISTD 1 +#include "wrappers.h" #define PROC_DIR_NAME "/proc" #define CTX_DIR_NAME "/var/run/vservers/" #define CTX_NAME_MAX_LEN 50 -int call_new_s_context(int nbctx, int ctxs[], int remove_cap, int flags); +int wrapper_exit_code = 1; +#ifndef AT_CLKTCK +#define AT_CLKTCK 17 /* frequency of times() */ +#endif -struct ctx_list +static unsigned long hertz=0x42; + +struct XidData { - int ctx; - int process_count; - int VmSize_total; - int VmRSS_total; - long start_time_oldest; - long stime_total, utime_total; - char name[CTX_NAME_MAX_LEN]; - struct ctx_list *next; -} *my_ctx_list; + xid_t xid; + int process_count; + int VmSize_total; + int VmRSS_total; + uint64_t start_time_oldest; + uint64_t stime_total, utime_total; +}; struct process_info { - long VmSize; // number of pages of virtual memory - long VmRSS; // resident set size from /proc/#/stat - long start_time; // start time of process -- seconds since 1-1-70 - long stime, utime; // kernel & user-mode CPU time accumulated by process - long cstime, cutime; // cumulative time of process and reaped children - int s_context; + long VmSize; // number of pages of virtual memory + long VmRSS; // resident set size from /proc/#/stat + uint64_t start_time; // start time of process -- milliseconds since 1-1-70 + uint64_t stime, utime; // kernel & user-mode CPU time accumulated by process + uint64_t cstime, cutime; // cumulative time of process and reaped children + xid_t s_context; }; -char *process_name; +struct ArgInfo { + enum { tpUNSET, tpCTX, tpPID } type; + xid_t ctx; + pid_t pid; + unsigned int interval; + bool shutdown; + bool omit_init; + size_t argc; + char * const * argv; +}; -void usage() +static void +showHelp(int fd, char const *cmd, int res) { - fprintf(stderr, "%s: from vserver kit version %s\n", process_name, VERSION); - fprintf(stderr, "(no argument needed)\n\n"); - fprintf(stderr, "Show informations about all the active context.\n\n"); - fprintf(stderr, " CTX# Context number\n"); - fprintf(stderr, " #0 = root context\n"); - fprintf(stderr, " #1 = monitoring context\n"); - fprintf(stderr, " PROC QTY Quantity of processes in each context\n"); - fprintf(stderr, " VSZ Number of pages of virtual memory\n"); - fprintf(stderr, " RSS Resident set size\n"); - fprintf(stderr, " userTIME User-mode CPU time accumulated\n"); - fprintf(stderr, " sysTIME Kernel-mode CPU time accumulated\n"); - fprintf(stderr, " UPTIME Uptime/context\n"); - fprintf(stderr, " NAME Virtual server name\n"); - fprintf(stderr, "\n"); - + WRITE_MSG(fd, "Usage: "); + WRITE_STR(fd, cmd); + WRITE_MSG(fd, + "\n" + "Show informations about all the active context.\n\n" + " CTX# Context number\n" + " #0 = root context\n" + " #1 = monitoring context\n" + " PROC QTY Quantity of processes in each context\n" + " VSZ Number of pages of virtual memory\n" + " RSS Resident set size\n" + " userTIME User-mode CPU time accumulated\n" + " sysTIME Kernel-mode CPU time accumulated\n" + " UPTIME Uptime/context\n" + " NAME Virtual server name\n" + "\n"); + exit(res); } -// return uptime (in ms) from /proc/uptime -long get_uptime() +static void +showVersion() { - int fd; - double up; - char buffer[64]; - - // open the /proc/uptime file - if ((fd = open("/proc/uptime", O_RDONLY, 0)) == -1) - return 0; - - if (read(fd, buffer, sizeof(buffer)) < 1) - return 0; - - close(fd); - - if (sscanf(buffer, "%lf", &up) < 1) - { - fprintf(stderr, "%s: bad data in /proc/uptime\n", process_name); - return 0; - } - - return up * 100; + WRITE_MSG(1, + "vserver-stat " VERSION " -- show virtual context statistics\n" + "This program is part of " PACKAGE_STRING "\n\n" + "Copyright (C) 2003 Enrico Scholz\n" + VERSION_COPYRIGHT_DISCLAIMER); + exit(0); } -// insert a new record to the list -struct ctx_list *insert_ctx(int ctx, struct ctx_list *next) + +// return uptime (in ms) from /proc/uptime +static uint64_t +getUptime() { - struct ctx_list *new; - - new = (struct ctx_list *)malloc(sizeof(struct ctx_list)); - new->ctx = ctx; - new->process_count = 0; - new->VmSize_total = 0; - new->VmRSS_total = 0; - new->utime_total = 0; - new->stime_total = 0; - new->start_time_oldest = 0; - new->next = next; - new->name[0] = '\0'; - - return new; + int fd; + char buffer[64]; + char * errptr; + size_t len; + uint64_t secs; + uint32_t msecs=0; + + // open the /proc/uptime file + fd = EopenD("/proc/uptime", O_RDONLY, 0); + len = Eread(fd, buffer, sizeof buffer); + + if (len==sizeof(buffer)) { + WRITE_MSG(2, "Too much data in /proc/uptime; aborting...\n"); + exit(1); + } + Eclose(fd); + + while (len>0 && buffer[len-1]=='\n') --len; + buffer[len] = '\0'; + + secs = strtol(buffer, &errptr, 10); + if (*errptr!='.') errptr = buffer; + else { + unsigned int mult; + switch (strlen(errptr+1)) { + case 0 : mult = 1000; break; + case 1 : mult = 100; break; + case 2 : mult = 10; break; + case 3 : mult = 1; break; + default : mult = 0; break; + } + msecs = strtol(errptr+1, &errptr, 10) * mult; + } + + if ((*errptr!='\0' && *errptr!=' ') || errptr==buffer) { + WRITE_MSG(2, "Bad data in /proc/uptime\n"); + exit(1); + } + + return secs*1000 + msecs; } -// find the ctx record with the ctx number -struct ctx_list *find_ctx(struct ctx_list *list, int ctx) +static int +cmpData(void const *xid_v, void const *map_v) { - // very simple search engine... - while(list != NULL) - { - // find - if (list->ctx == ctx) - { - return list; - } - list = list->next; - } - return NULL; + xid_t const * const xid = xid_v; + struct XidData const * const map = map_v; + int res = *xid - map->xid; + + return res; } -// compute the process info into the list -void add_ctx(struct ctx_list *list, struct process_info *process) +static void +registerXid(struct Vector *vec, struct process_info *process) { - list->process_count ++; - list->VmSize_total += process->VmSize; - list->VmRSS_total += process->VmRSS; - list->utime_total += process->utime + process->cutime; - list->stime_total += process->stime + process->cstime; - - if (list->start_time_oldest == 0) // first entry - list->start_time_oldest = process->start_time; - else - if (list->start_time_oldest > process->start_time) - list->start_time_oldest = process->start_time; + struct XidData *res; + + res = Vector_search(vec, &process->s_context, cmpData); + if (res==0) { + res = Vector_insert(vec, &process->s_context, cmpData); + res->xid = process->s_context; + res->process_count = 0; + res->VmSize_total = 0; + res->VmRSS_total = 0; + res->utime_total = 0; + res->stime_total = 0; + res->start_time_oldest = process->start_time; + } + + ++res->process_count; + res->VmSize_total += process->VmSize; + res->VmRSS_total += process->VmRSS; + res->utime_total += process->utime + process->cutime; + res->stime_total += process->stime + process->cstime; + + res->start_time_oldest = MIN(res->start_time_oldest, process->start_time); } -// increment the count number in the ctx record using ctx number -void count_ctx(struct ctx_list *list, struct process_info *process) +static inline uint64_t +toMsec(uint64_t v) { - struct ctx_list *prev = list; - - if (process == NULL) return; - - // search - while(list != NULL) - { - // find - if (list->ctx == process->s_context) - { - add_ctx(list, process); - return; - } - // insert between - if (list->ctx > process->s_context) - { - prev->next = insert_ctx(process->s_context, list); - add_ctx(prev->next, process); - return; - } - // ++ - prev = list; - list = list->next; - } - // add at the end - prev->next = insert_ctx(process->s_context, NULL); - add_ctx(prev->next, process); + return v*1000llu/hertz; } -// free mem -void free_ctx(struct ctx_list *list) -{ - struct ctx_list *prev; - for(;list != NULL; list = prev) - { - prev = list->next; - free(list); - } +// shamelessly stolen from procps... +static unsigned long +find_elf_note(unsigned long findme){ + unsigned long *ep = (unsigned long *)environ; + while(*ep++); + while(*ep){ + if(ep[0]==findme) return ep[1]; + ep+=2; + } + return (unsigned long)(-1); } -/* - Read the vserver description -*/ -static void read_description( - const char *name, // Vserver name - char descrip[1000]) +static void initHertz() __attribute__((__constructor__)); + +static void +initHertz() { - char conf[PATH_MAX]; - FILE *fin; - descrip[0] = '\0'; - snprintf (conf,sizeof(conf)-1,"/etc/vservers/%s.conf",name); - fin = fopen (conf,"r"); - if (fin != NULL){ - char line[1000]; - while (fgets(line,sizeof(line)-1,fin)!=NULL){ - if (line[0] == '#'){ - char *pt = line+1; - while (isspace(*pt)) pt++; - if (strncmp(pt,"Description:",12)==0){ - int last; - pt += 12; - while (isspace(*pt)) pt++; - strcpy (descrip,pt); - last = strlen(descrip)-1; - if (last >=0 && descrip[last] == '\n'){ - descrip[last] = '\0'; - } - } - } - } - fclose (fin); - } + hertz = find_elf_note(AT_CLKTCK); + if (hertz==(unsigned long)(-1)) + hertz = sysconf(_SC_CLK_TCK); } -// show the ctx_list with name from /var/run/servers/*.ctx -void show_ctx(struct ctx_list *list) +// open the process's status file to get the ctx number, and other stat +struct process_info * +get_process_info(char *pid) { - // fill the ctx_list using the /var/run/servers/*.ctx file(s) - __extension__ int bind_ctx_name(struct ctx_list *list) - { - // fetch the context number in /var/run/vservers/'filename' - int fetch_ctx_number(char *filename) - { - int fd; - int ctx; - char buf[25]; - - // open file - if ((fd = open(filename, O_RDONLY, 0)) == -1) - return -1; - // put the file in a small buffer - if (read(fd, buf, sizeof(buf)) < 1) - return -1; - - close(fd); - - sscanf(buf, "S_CONTEXT=%d", &ctx); - return ctx; - } - - /* begin bind_ctx_name */ - - DIR *ctx_dir; - struct dirent *dir_entry; - char *p; - char ctx_name[CTX_NAME_MAX_LEN]; - struct ctx_list *ctx; - int ctx_number; - - // open the /var/run/vservers directory - if ((ctx_dir = opendir(CTX_DIR_NAME)) == NULL) - { - fprintf(stderr, "%s: in openning %s: %s\n", process_name, CTX_DIR_NAME, strerror(errno)); - return -1; - } + int fd; + char buffer[1024]; + char *p; + size_t idx, l=strlen(pid); + static struct process_info process; + +#if 1 + process.s_context = vc_get_task_xid(atoi(pid)); +#else +# warning Compiling in debug-code + process.s_context = random()%6; +#endif + + if (process.s_context==VC_NOCTX) { + int err=errno; + WRITE_MSG(2, "vc_get_task_xid("); + WRITE_STR(2, pid); + WRITE_MSG(2, "): "); + WRITE_STR(2, strerror(err)); + WRITE_MSG(2, "\n"); + + return 0; + } + + memcpy(buffer, "/proc/", 6); idx = 6; + memcpy(buffer+idx, pid, l); idx += l; + memcpy(buffer+idx, "/stat", 6); - chdir(CTX_DIR_NAME); - while ((dir_entry = readdir(ctx_dir)) != NULL) - { - strncpy(ctx_name, dir_entry->d_name, sizeof(ctx_name)); - p = strstr(ctx_name, ".ctx"); - if (p != NULL) // make sure that it is a .ctx file.. - { - *p = '\0'; // remove the .ctx in the file name - if ((ctx_number = fetch_ctx_number(dir_entry->d_name)) > 1) - { - if ((ctx = find_ctx(list, ctx_number)) != NULL) - strncpy(ctx->name, ctx_name, CTX_NAME_MAX_LEN); - } - } - // else fprintf(stderr, "invalid file %s in %s\n", dir_entry->d_name, CTX_DIR_NAME); - } - closedir(ctx_dir); - return 0; - } + // open the /proc/#/stat file + if ((fd = open(buffer, O_RDONLY, 0)) == -1) + return NULL; + // put the file in a buffer + if (read(fd, buffer, sizeof(buffer)) < 1) + return NULL; - __extension__ char *convert_time(unsigned t, char *str) - { - unsigned hh, mm, ss, ms; - - ms = t % 100; - t /= 100; - - ss = t%60; - t /= 60; - mm = t%60; - t /= 60; - hh = t%60; - t /= 24; - - if (t > 0) // day > 0 - { - snprintf(str, 25, "%3.ud%02uh%02u", t, (hh%12) ? hh%12 : 12, mm); - } - else - { - if (hh > 0) // hour > 0 - snprintf(str, 25, " %2.uh%02um%02u", hh, mm, ss); - else - { - snprintf(str, 25, " %2.um%02u.%02u", mm, ss, ms); - } - } - return str; - } + close(fd); - __extension__ char *convert_mem(unsigned long total, char *str) - { - // Byte - if (total < 1024) - { - snprintf(str, 25, "%luB", total); - return str; - } - - total >>= 10; // kByte - if (total < 1024) - { - snprintf(str, 25, "%lukB", total); - return str; - } - - total >>= 10; // MByte - if (total < 1024) - { - snprintf(str, 25, "%luMB", total); - return str; - } - - total >>= 10; // GByte - if (total < 1024) - { - snprintf(str, 25, "%luGB", total); - return str; - } - total >>= 10; // TByte - snprintf(str, 25, "%luTB", total); - return str; - } + p = strchr(buffer, ')'); // go after the PID (process_name) + for (idx = 0; idx<12 && *p!='\0'; ++p) + if ((*p)==' ') ++idx; - /* begin show_ctx */ - char utime[25], stime[25], ctx_uptime[25]; - char vmsize[25], vmrss[25]; - long uptime = get_uptime(); - - // now we have all the active context, fetch the name - // from /var/run/vservers/*.ctx - bind_ctx_name(list); - - printf("CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME DESCRIPTION\n"); - while(list != NULL) - { - char descrip[1000]; - if (list->ctx == 1) - strncpy(list->name, "monitoring server", CTX_NAME_MAX_LEN); - - read_description (list->name,descrip); - - printf("%-4d %4d %6s %6s %9s %9s %9s %-8s %s\n", list->ctx, list->process_count, - convert_mem(list->VmSize_total, vmsize), convert_mem(list->VmRSS_total, vmrss), - convert_time(list->utime_total, utime), convert_time(list->stime_total, stime), convert_time(uptime - list->start_time_oldest, ctx_uptime) - , list->name,descrip); - list = list->next; - } + process.utime = toMsec(strtol(p, &p, 10)); + process.stime = toMsec(strtol(p+1, &p, 10)); + process.cutime = toMsec(strtol(p+1, &p, 10)); + process.cstime = toMsec(strtol(p+1, &p, 10)); + + for (idx = 0; idx<5 && *p!='\0'; ++p) + if ((*p)==' ') ++idx; + + process.start_time = toMsec(strtol(p, &p, 10)); + process.VmSize = strtol(p+1, &p, 10); + process.VmRSS = strtol(p+1, &p, 10); + + //printf("pid=%s, start_time=%llu\n", pid, process.start_time); + return &process; } -// open the process's status file to get the ctx number, and other stat -struct process_info *get_process_info(char *pid) +static size_t +fillUintZero(char *buf, unsigned long val, size_t cnt) { - int fd; - char buffer[1024]; - char *p; - static struct process_info process; - - // open the proc/#/status file - snprintf(buffer, sizeof(buffer), "/proc/%s/status", pid); - if ((fd = open(buffer, O_RDONLY, 0)) == -1) - return NULL; - // put the file in a buffer - if (read(fd, buffer, sizeof(buffer)) < 1) - return NULL; - - close(fd); - - // find the s_context entry - if ((p = strstr(buffer, "s_context:")) == NULL) - return NULL; - - sscanf(p, "s_context: %d", &process.s_context); - - // open the /proc/#/stat file - snprintf(buffer, sizeof(buffer), "/proc/%s/stat", pid); - if ((fd = open(buffer, O_RDONLY, 0)) == -1) - return NULL; - // put the file in a buffer - if (read(fd, buffer, sizeof(buffer)) < 1) - return NULL; - - close(fd); - - p = strchr(buffer, ')'); // go after the PID (process_name) - sscanf(p + 2, - "%*s " - "%*s %*s %*s %*s %*s " - "%*s %*s %*s %*s %*s %ld %ld " - "%ld %ld %*s %*s %*s %*s " - "%ld %ld " - "%ld ", &process.utime, &process.stime, - &process.cutime, &process.cstime, - &process.start_time, - &process.VmSize, &process.VmRSS); - - return &process; + size_t l; + + l = utilvserver_fmt_ulong(buf, val); + if (l 1) - { - usage(); - return 0; - } - - // do not include own stat - my_pid = getpid(); - - // try to switch in context 1 - if (call_new_s_context(1,ctx1, 0, 0) < 0) - { - fprintf(stderr, "%s: unable to switch in context security #1\n", process_name); - return -1; - } + char const * SUFFIXES[] = { " ", "K", "M", "G", "T", "+" }; + char tmp[16]; + char const * suffix = "+"; + size_t i, l; + unsigned int mod = 0; + + for (i=0; i<6; ++i) { + if (val<1000) { + suffix = SUFFIXES[i]; + break; + } + mod = 10*(val & 1023)/1024; + val >>= 10; + } + + if (val >9999) val=9999; + if (val>=1000) mod=0; + + l = utilvserver_fmt_ulong(tmp, val); + if (mod!=0) { + tmp[l++] = '.'; + l += utilvserver_fmt_ulong(tmp+l, mod); + } + i = 7-l-strlen(suffix); + + memcpy(buf+i, tmp, l); + memcpy(buf+i+l, suffix, strlen(suffix)); +} - // create the fist... - my_ctx_list = insert_ctx(0, NULL); - // init with the default name for the context 0 - strncpy(my_ctx_list->name, "root server", CTX_NAME_MAX_LEN); +static void +shortenTime(char *buf, uint64_t t) +{ + char tmp[32]; + char *ptr = tmp; + + unsigned long hh, mm, ss, ms; + + ms = t % 1000; + t /= 1000; + + ss = t%60; + t /= 60; + mm = t%60; + t /= 60; + hh = t%60; + t /= 24; + + if (t>999*999) { + memcpy(ptr, "INVALID", 7); + ptr += 7; + } + else if (t>999) { + ptr += utilvserver_fmt_ulong(ptr, t/365); + *ptr++ = 'y'; + ptr += fillUintZero(ptr, t%365, 2); + *ptr++ = 'd'; + ptr += fillUintZero(ptr, hh, 2); + } + else if (t>0) { + ptr += utilvserver_fmt_ulong(ptr, t); + *ptr++ = 'd'; + ptr += fillUintZero(ptr, hh, 2); + *ptr++ = 'h'; + ptr += fillUintZero(ptr, mm, 2); + } + else if (hh>0) { + ptr += utilvserver_fmt_ulong(ptr, hh); + *ptr++ = 'h'; + ptr += fillUintZero(ptr, mm, 2); + *ptr++ = 'm'; + ptr += fillUintZero(ptr, ss, 2); + } + else { + ptr += utilvserver_fmt_ulong(ptr, mm); + *ptr++ = 'm'; + ptr += fillUintZero(ptr, ss, 2); + *ptr++ = 's'; + ptr += fillUintZero(ptr, ms, 2); + } + + *ptr = ' '; + memcpy(buf+10-(ptr-tmp), tmp, ptr-tmp); +} - // open the /proc dir - if ((proc_dir = opendir(PROC_DIR_NAME)) == NULL) - { - fprintf(stderr, "%s: %s\n", process_name, strerror(errno)); - return -1; +static void +showContexts(struct Vector *vec) +{ + uint64_t uptime = getUptime(); + struct XidData const * ptr = Vector_begin_const(vec); + struct XidData const * const end_ptr = Vector_end_const(vec); + + + WRITE_MSG(1, "CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME\n"); + for (; ptrxid); + l = utilvserver_fmt_long(tmp, ptr->process_count); + memcpy(buf+10-l, tmp, l); + + shortenMem (buf+10, ptr->VmSize_total); + shortenMem (buf+17, ptr->VmRSS_total); + shortenTime(buf+24, ptr->utime_total); + shortenTime(buf+34, ptr->stime_total); + //printf("%llu, %llu\n", uptime, ptr->start_time_oldest); + shortenTime(buf+44, uptime - ptr->start_time_oldest); + + switch (ptr->xid) { + case 0 : strcpy(buf+55, "root server" ); break; + case 1 : strcpy(buf+55, "monitoring server"); break; + default : { + char * name = 0; + char * cfgpath = 0; + vcCfgStyle cfgstyle = vcCFG_AUTO; + + if ((cfgpath = vc_getVserverByCtx(ptr->xid, &cfgstyle, 0))==0 || + (name = vc_getVserverName(cfgpath, cfgstyle))==0) { + name = strdup(""); + cfgstyle = vcCFG_NONE; } - chdir(PROC_DIR_NAME); - while ((dir_entry = readdir(proc_dir)) != NULL) - { - // select only process file - if (!isdigit(*dir_entry->d_name)) - continue; - - if (atoi(dir_entry->d_name) != my_pid) - count_ctx(my_ctx_list, get_process_info(dir_entry->d_name)); - + switch (cfgstyle) { + case vcCFG_LEGACY : { + size_t len = MIN(strlen(name), 18); + buf[55] = '['; + memcpy(buf+56, name, len); + memcpy(buf+56+len, "]", 2); + break; + } + default : { + size_t len = MIN(strlen(name), 20); + memcpy(buf+55, name, len); + buf[55+len] = '\0'; + break; + } } - closedir(proc_dir); - - // output the ctx_list - show_ctx(my_ctx_list); - - // free the ctx_list - free_ctx(my_ctx_list); + + free(name); + free(cfgpath); + } + } + + write(1, buf, strlen(buf)); + write(1, "\n", 1); + } +} - return 0; +int main(int argc, char **argv) +{ + DIR * proc_dir; + struct dirent* dir_entry; + pid_t my_pid; + struct Vector xid_data; + char const * errptr; + + if (argc==2) { + if (strcmp(argv[1], "--help") ==0) showHelp(1, argv[0], 0); + if (strcmp(argv[1], "--version")==0) showVersion(); + } + if (argc!=1) { + WRITE_MSG(2, "Unknown parameter, use '--help' for more information\n"); + return EXIT_FAILURE; + } + + if (hertz==0x42) initHertz(); + + //printf("hertz=%lu\n", hertz); + // do not include own stat + my_pid = getpid(); + + if (!switchToWatchXid(&errptr)) { + perror(errptr); + exit(1); + } + + if (access("/proc/uptime",R_OK)==-1 && errno==ENOENT) + WRITE_MSG(2, + "WARNING: can not access /proc/uptime. Usually, this is caused by\n" + " procfs-security. Please read the FAQ for more details\n" + " http://www.linux-vserver.org/index.php?page=Linux-Vserver+FAQ\n"); + + Vector_init(&xid_data, sizeof(struct XidData)); + + Echdir(PROC_DIR_NAME); + proc_dir = Eopendir("."); + while ((dir_entry = readdir(proc_dir)) != NULL) + { + // select only process file + if (!isdigit(*dir_entry->d_name)) + continue; + + if (atoi(dir_entry->d_name) != my_pid) { + struct process_info * info = get_process_info(dir_entry->d_name); + if (info) + registerXid(&xid_data, info); + } + } + closedir(proc_dir); + + // output the ctx_list + showContexts(&xid_data); + +#ifndef NDEBUG + Vector_free(&xid_data); +#endif + + return 0; }