diff options
author | Denis Vlasenko | 2007-06-12 08:12:33 +0000 |
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committer | Denis Vlasenko | 2007-06-12 08:12:33 +0000 |
commit | cc5e090f12fb4e3834fb1a55bc91d7618af8ce78 (patch) | |
tree | 34813e8836287c21cb893ab7d3aee666db415d62 /miscutils | |
parent | aa198dd39cad6cb41fbf6c8b64301b581a9ba206 (diff) | |
download | busybox-cc5e090f12fb4e3834fb1a55bc91d7618af8ce78.zip busybox-cc5e090f12fb4e3834fb1a55bc91d7618af8ce78.tar.gz |
move several applets to more correct ex-project. No code changes.
Diffstat (limited to 'miscutils')
-rw-r--r-- | miscutils/Config.in | 6 | ||||
-rw-r--r-- | miscutils/Kbuild | 1 | ||||
-rw-r--r-- | miscutils/nmeter.c | 889 |
3 files changed, 0 insertions, 896 deletions
diff --git a/miscutils/Config.in b/miscutils/Config.in index a1ed243..170310f 100644 --- a/miscutils/Config.in +++ b/miscutils/Config.in @@ -290,12 +290,6 @@ config MT to advance or rewind a tape past a specified number of archive files on the tape. -config NMETER - bool "nmeter" - default n - help - nmeter prints various system parameters continuously. - config RAIDAUTORUN bool "raidautorun" default n diff --git a/miscutils/Kbuild b/miscutils/Kbuild index 4551137..22b4564 100644 --- a/miscutils/Kbuild +++ b/miscutils/Kbuild @@ -19,7 +19,6 @@ lib-$(CONFIG_LESS) += less.o lib-$(CONFIG_MAKEDEVS) += makedevs.o lib-$(CONFIG_MOUNTPOINT) += mountpoint.o lib-$(CONFIG_MT) += mt.o -lib-$(CONFIG_NMETER) += nmeter.o lib-$(CONFIG_RAIDAUTORUN) += raidautorun.o lib-$(CONFIG_READAHEAD) += readahead.o lib-$(CONFIG_RUNLEVEL) += runlevel.o diff --git a/miscutils/nmeter.c b/miscutils/nmeter.c deleted file mode 100644 index 1d58eb2..0000000 --- a/miscutils/nmeter.c +++ /dev/null @@ -1,889 +0,0 @@ -/* -** Licensed under the GPL v2, see the file LICENSE in this tarball -** -** Based on nanotop.c from floppyfw project -** -** Contact me: vda.linux@googlemail.com */ - -//TODO: -// simplify code -// /proc/locks -// /proc/stat: -// disk_io: (3,0):(22272,17897,410702,4375,54750) -// btime 1059401962 - -#include "libbb.h" -#include <time.h> - -typedef unsigned long long ullong; - -enum { PROC_FILE_SIZE = 4096 }; - -typedef struct proc_file { - char *file; - //const char *name; - smallint last_gen; -} proc_file; - -static const char *const proc_name[] = { - "stat", // Must match the order of proc_file's! - "loadavg", - "net/dev", - "meminfo", - "diskstats", - "sys/fs/file-nr", -}; - -struct globals { - // Sample generation flip-flop - smallint gen; - // Linux 2.6? (otherwise assumes 2.4) - smallint is26; - // 1 if sample delay is not an integer fraction of a second - smallint need_seconds; - char *cur_outbuf; - const char *final_str; - int delta; - int deltanz; - struct timeval tv; -#define first_proc_file proc_stat - proc_file proc_stat; // Must match the order of proc_name's! - proc_file proc_loadavg; - proc_file proc_net_dev; - proc_file proc_meminfo; - proc_file proc_diskstats; - proc_file proc_sys_fs_filenr; -}; -#define G (*ptr_to_globals) -#define gen (G.gen ) -#define is26 (G.is26 ) -#define need_seconds (G.need_seconds ) -#define cur_outbuf (G.cur_outbuf ) -#define final_str (G.final_str ) -#define delta (G.delta ) -#define deltanz (G.deltanz ) -#define tv (G.tv ) -#define proc_stat (G.proc_stat ) -#define proc_loadavg (G.proc_loadavg ) -#define proc_net_dev (G.proc_net_dev ) -#define proc_meminfo (G.proc_meminfo ) -#define proc_diskstats (G.proc_diskstats ) -#define proc_sys_fs_filenr (G.proc_sys_fs_filenr) -#define INIT_G() do { \ - PTR_TO_GLOBALS = xzalloc(sizeof(G)); \ - cur_outbuf = outbuf; \ - final_str = "\n"; \ - deltanz = delta = 1000000; \ - } while (0) - -// We depend on this being a char[], not char* - we take sizeof() of it -#define outbuf bb_common_bufsiz1 - -static inline void reset_outbuf(void) -{ - cur_outbuf = outbuf; -} - -static inline int outbuf_count(void) -{ - return cur_outbuf - outbuf; -} - -static void print_outbuf(void) -{ - int sz = cur_outbuf - outbuf; - if (sz > 0) { - xwrite(1, outbuf, sz); - cur_outbuf = outbuf; - } -} - -static void put(const char *s) -{ - int sz = strlen(s); - if (sz > outbuf + sizeof(outbuf) - cur_outbuf) - sz = outbuf + sizeof(outbuf) - cur_outbuf; - memcpy(cur_outbuf, s, sz); - cur_outbuf += sz; -} - -static void put_c(char c) -{ - if (cur_outbuf < outbuf + sizeof(outbuf)) - *cur_outbuf++ = c; -} - -static void put_question_marks(int count) -{ - while (count--) - put_c('?'); -} - -static void readfile_z(char *buf, int sz, const char* fname) -{ -// open_read_close() will do two reads in order to be sure we are at EOF, -// and we don't need/want that. -// sz = open_read_close(fname, buf, sz-1); - - int fd = xopen(fname, O_RDONLY); - buf[0] = '\0'; - if (fd >= 0) { - sz = read(fd, buf, sz-1); - if (sz > 0) buf[sz] = '\0'; - close(fd); - } -} - -static const char* get_file(proc_file *pf) -{ - if (pf->last_gen != gen) { - pf->last_gen = gen; - // We allocate PROC_FILE_SIZE bytes. This wastes memory, - // but allows us to allocate only once (at first sample) - // per proc file, and reuse buffer for each sample - if (!pf->file) - pf->file = xmalloc(PROC_FILE_SIZE); - readfile_z(pf->file, PROC_FILE_SIZE, proc_name[pf - &first_proc_file]); - } - return pf->file; -} - -static inline ullong read_after_slash(const char *p) -{ - p = strchr(p, '/'); - if (!p) return 0; - return strtoull(p+1, NULL, 10); -} - -enum conv_type { conv_decimal, conv_slash }; - -// Reads decimal values from line. Values start after key, for example: -// "cpu 649369 0 341297 4336769..." - key is "cpu" here. -// Values are stored in vec[]. arg_ptr has list of positions -// we are interested in: for example: 1,2,5 - we want 1st, 2nd and 5th value. -static int vrdval(const char* p, const char* key, - enum conv_type conv, ullong *vec, va_list arg_ptr) -{ - int indexline; - int indexnext; - - p = strstr(p, key); - if (!p) return 1; - - p += strlen(key); - indexline = 1; - indexnext = va_arg(arg_ptr, int); - while (1) { - while (*p == ' ' || *p == '\t') p++; - if (*p == '\n' || *p == '\0') break; - - if (indexline == indexnext) { // read this value - *vec++ = conv==conv_decimal ? - strtoull(p, NULL, 10) : - read_after_slash(p); - indexnext = va_arg(arg_ptr, int); - } - while (*p > ' ') p++; // skip over value - indexline++; - } - return 0; -} - -// Parses files with lines like "cpu0 21727 0 15718 1813856 9461 10485 0 0": -// rdval(file_contents, "string_to_find", result_vector, value#, value#...) -// value# start with 1 -static int rdval(const char* p, const char* key, ullong *vec, ...) -{ - va_list arg_ptr; - int result; - - va_start(arg_ptr, vec); - result = vrdval(p, key, conv_decimal, vec, arg_ptr); - va_end(arg_ptr); - - return result; -} - -// Parses files with lines like "... ... ... 3/148 ...." -static int rdval_loadavg(const char* p, ullong *vec, ...) -{ - va_list arg_ptr; - int result; - - va_start(arg_ptr, vec); - result = vrdval(p, "", conv_slash, vec, arg_ptr); - va_end(arg_ptr); - - return result; -} - -// Parses /proc/diskstats -// 1 2 3 4 5 6(rd) 7 8 9 10(wr) 11 12 13 14 -// 3 0 hda 51292 14441 841783 926052 25717 79650 843256 3029804 0 148459 3956933 -// 3 1 hda1 0 0 0 0 <- ignore if only 4 fields -static int rdval_diskstats(const char* p, ullong *vec) -{ - ullong rd = 0; // to avoid "warning: 'rd' might be used uninitialized" - int indexline = 0; - vec[0] = 0; - vec[1] = 0; - while (1) { - indexline++; - while (*p == ' ' || *p == '\t') p++; - if (*p == '\0') break; - if (*p == '\n') { - indexline = 0; - p++; - continue; - } - if (indexline == 6) { - rd = strtoull(p, NULL, 10); - } else if (indexline == 10) { - vec[0] += rd; // TODO: *sectorsize (don't know how to find out sectorsize) - vec[1] += strtoull(p, NULL, 10); - while (*p != '\n' && *p != '\0') p++; - continue; - } - while (*p > ' ') p++; // skip over value - } - return 0; -} - -static void scale(ullong ul) -{ - char buf[5]; - smart_ulltoa5(ul, buf); - put(buf); -} - - -#define S_STAT(a) \ -typedef struct a { \ - struct s_stat *next; \ - void (*collect)(struct a *s); \ - const char *label; -#define S_STAT_END(a) } a; - -S_STAT(s_stat) -S_STAT_END(s_stat) - -static void collect_literal(s_stat *s) -{ -} - -static s_stat* init_literal(void) -{ - s_stat *s = xmalloc(sizeof(s_stat)); - s->collect = collect_literal; - return (s_stat*)s; -} - -static s_stat* init_delay(const char *param) -{ - delta = bb_strtoi(param, NULL, 0) * 1000; - deltanz = delta > 0 ? delta : 1; - need_seconds = (1000000%deltanz) != 0; - return NULL; -} - -static s_stat* init_cr(const char *param) -{ - final_str = "\r"; - return (s_stat*)0; -} - - -// user nice system idle iowait irq softirq (last 3 only in 2.6) -//cpu 649369 0 341297 4336769 11640 7122 1183 -//cpuN 649369 0 341297 4336769 11640 7122 1183 -enum { CPU_FIELDCNT = 7 }; -S_STAT(cpu_stat) - ullong old[CPU_FIELDCNT]; - int bar_sz; - char *bar; -S_STAT_END(cpu_stat) - - -static void collect_cpu(cpu_stat *s) -{ - ullong data[CPU_FIELDCNT] = { 0, 0, 0, 0, 0, 0, 0 }; - unsigned frac[CPU_FIELDCNT] = { 0, 0, 0, 0, 0, 0, 0 }; - ullong all = 0; - int norm_all = 0; - int bar_sz = s->bar_sz; - char *bar = s->bar; - int i; - - if (rdval(get_file(&proc_stat), "cpu ", data, 1, 2, 3, 4, 5, 6, 7)) { - put_question_marks(bar_sz); - return; - } - - for (i = 0; i < CPU_FIELDCNT; i++) { - ullong old = s->old[i]; - if (data[i] < old) old = data[i]; //sanitize - s->old[i] = data[i]; - all += (data[i] -= old); - } - - if (all) { - for (i = 0; i < CPU_FIELDCNT; i++) { - ullong t = bar_sz * data[i]; - norm_all += data[i] = t / all; - frac[i] = t % all; - } - - while (norm_all < bar_sz) { - unsigned max = frac[0]; - int pos = 0; - for (i = 1; i < CPU_FIELDCNT; i++) { - if (frac[i] > max) max = frac[i], pos = i; - } - frac[pos] = 0; //avoid bumping up same value twice - data[pos]++; - norm_all++; - } - - memset(bar, '.', bar_sz); - memset(bar, 'S', data[2]); bar += data[2]; //sys - memset(bar, 'U', data[0]); bar += data[0]; //usr - memset(bar, 'N', data[1]); bar += data[1]; //nice - memset(bar, 'D', data[4]); bar += data[4]; //iowait - memset(bar, 'I', data[5]); bar += data[5]; //irq - memset(bar, 'i', data[6]); bar += data[6]; //softirq - } else { - memset(bar, '?', bar_sz); - } - put(s->bar); -} - - -static s_stat* init_cpu(const char *param) -{ - int sz; - cpu_stat *s = xmalloc(sizeof(cpu_stat)); - s->collect = collect_cpu; - sz = strtol(param, NULL, 0); - if (sz < 10) sz = 10; - if (sz > 1000) sz = 1000; - s->bar = xmalloc(sz+1); - s->bar[sz] = '\0'; - s->bar_sz = sz; - return (s_stat*)s; -} - - -S_STAT(int_stat) - ullong old; - int no; -S_STAT_END(int_stat) - -static void collect_int(int_stat *s) -{ - ullong data[1]; - ullong old; - - if (rdval(get_file(&proc_stat), "intr", data, s->no)) { - put_question_marks(4); - return; - } - - old = s->old; - if (data[0] < old) old = data[0]; //sanitize - s->old = data[0]; - scale(data[0] - old); -} - -static s_stat* init_int(const char *param) -{ - int_stat *s = xmalloc(sizeof(int_stat)); - s->collect = collect_int; - if (param[0]=='\0') { - s->no = 1; - } else { - int n = strtoul(param, NULL, 0); - s->no = n+2; - } - return (s_stat*)s; -} - - -S_STAT(ctx_stat) - ullong old; -S_STAT_END(ctx_stat) - -static void collect_ctx(ctx_stat *s) -{ - ullong data[1]; - ullong old; - - if (rdval(get_file(&proc_stat), "ctxt", data, 1)) { - put_question_marks(4); - return; - } - - old = s->old; - if (data[0] < old) old = data[0]; //sanitize - s->old = data[0]; - scale(data[0] - old); -} - -static s_stat* init_ctx(const char *param) -{ - ctx_stat *s = xmalloc(sizeof(ctx_stat)); - s->collect = collect_ctx; - return (s_stat*)s; -} - - -S_STAT(blk_stat) - const char* lookfor; - ullong old[2]; -S_STAT_END(blk_stat) - -static void collect_blk(blk_stat *s) -{ - ullong data[2]; - int i; - - if (is26) { - i = rdval_diskstats(get_file(&proc_diskstats), data); - } else { - i = rdval(get_file(&proc_stat), s->lookfor, data, 1, 2); - // Linux 2.4 reports bio in Kbytes, convert to sectors: - data[0] *= 2; - data[1] *= 2; - } - if (i) { - put_question_marks(9); - return; - } - - for (i=0; i<2; i++) { - ullong old = s->old[i]; - if (data[i] < old) old = data[i]; //sanitize - s->old[i] = data[i]; - data[i] -= old; - } - scale(data[0]*512); // TODO: *sectorsize - put_c(' '); - scale(data[1]*512); -} - -static s_stat* init_blk(const char *param) -{ - blk_stat *s = xmalloc(sizeof(blk_stat)); - s->collect = collect_blk; - s->lookfor = "page"; - return (s_stat*)s; -} - - -S_STAT(fork_stat) - ullong old; -S_STAT_END(fork_stat) - -static void collect_thread_nr(fork_stat *s) -{ - ullong data[1]; - - if (rdval_loadavg(get_file(&proc_loadavg), data, 4)) { - put_question_marks(4); - return; - } - scale(data[0]); -} - -static void collect_fork(fork_stat *s) -{ - ullong data[1]; - ullong old; - - if (rdval(get_file(&proc_stat), "processes", data, 1)) { - put_question_marks(4); - return; - } - - old = s->old; - if (data[0] < old) old = data[0]; //sanitize - s->old = data[0]; - scale(data[0] - old); -} - -static s_stat* init_fork(const char *param) -{ - fork_stat *s = xmalloc(sizeof(fork_stat)); - if (*param == 'n') { - s->collect = collect_thread_nr; - } else { - s->collect = collect_fork; - } - return (s_stat*)s; -} - - -S_STAT(if_stat) - ullong old[4]; - const char *device; - char *device_colon; -S_STAT_END(if_stat) - -static void collect_if(if_stat *s) -{ - ullong data[4]; - int i; - - if (rdval(get_file(&proc_net_dev), s->device_colon, data, 1, 3, 9, 11)) { - put_question_marks(10); - return; - } - - for (i=0; i<4; i++) { - ullong old = s->old[i]; - if (data[i] < old) old = data[i]; //sanitize - s->old[i] = data[i]; - data[i] -= old; - } - put_c(data[1] ? '*' : ' '); - scale(data[0]); - put_c(data[3] ? '*' : ' '); - scale(data[2]); -} - -static s_stat* init_if(const char *device) -{ - if_stat *s = xmalloc(sizeof(if_stat)); - - if (!device || !device[0]) - bb_show_usage(); - s->collect = collect_if; - - s->device = device; - s->device_colon = xmalloc(strlen(device)+2); - strcpy(s->device_colon, device); - strcat(s->device_colon, ":"); - return (s_stat*)s; -} - - -S_STAT(mem_stat) - char opt; -S_STAT_END(mem_stat) - -// "Memory" value should not include any caches. -// IOW: neither "ls -laR /" nor heavy read/write activity -// should affect it. We'd like to also include any -// long-term allocated kernel-side mem, but it is hard -// to figure out. For now, bufs, cached & slab are -// counted as "free" memory -//2.6.16: -//MemTotal: 773280 kB -//MemFree: 25912 kB - genuinely free -//Buffers: 320672 kB - cache -//Cached: 146396 kB - cache -//SwapCached: 0 kB -//Active: 183064 kB -//Inactive: 356892 kB -//HighTotal: 0 kB -//HighFree: 0 kB -//LowTotal: 773280 kB -//LowFree: 25912 kB -//SwapTotal: 131064 kB -//SwapFree: 131064 kB -//Dirty: 48 kB -//Writeback: 0 kB -//Mapped: 96620 kB -//Slab: 200668 kB - takes 7 Mb on my box fresh after boot, -// but includes dentries and inodes -// (== can take arbitrary amount of mem) -//CommitLimit: 517704 kB -//Committed_AS: 236776 kB -//PageTables: 1248 kB -//VmallocTotal: 516052 kB -//VmallocUsed: 3852 kB -//VmallocChunk: 512096 kB -//HugePages_Total: 0 -//HugePages_Free: 0 -//Hugepagesize: 4096 kB -static void collect_mem(mem_stat *s) -{ - ullong m_total = 0; - ullong m_free = 0; - ullong m_bufs = 0; - ullong m_cached = 0; - ullong m_slab = 0; - - if (rdval(get_file(&proc_meminfo), "MemTotal:", &m_total, 1)) { - put_question_marks(4); - return; - } - if (s->opt == 'f') { - scale(m_total << 10); - return; - } - - if (rdval(proc_meminfo.file, "MemFree:", &m_free , 1) - || rdval(proc_meminfo.file, "Buffers:", &m_bufs , 1) - || rdval(proc_meminfo.file, "Cached:", &m_cached, 1) - || rdval(proc_meminfo.file, "Slab:", &m_slab , 1) - ) { - put_question_marks(4); - return; - } - - m_free += m_bufs + m_cached + m_slab; - switch (s->opt) { - case 'f': - scale(m_free << 10); break; - default: - scale((m_total - m_free) << 10); break; - } -} - -static s_stat* init_mem(const char *param) -{ - mem_stat *s = xmalloc(sizeof(mem_stat)); - s->collect = collect_mem; - s->opt = param[0]; - return (s_stat*)s; -} - - -S_STAT(swp_stat) -S_STAT_END(swp_stat) - -static void collect_swp(swp_stat *s) -{ - ullong s_total[1]; - ullong s_free[1]; - if (rdval(get_file(&proc_meminfo), "SwapTotal:", s_total, 1) - || rdval(proc_meminfo.file, "SwapFree:" , s_free, 1) - ) { - put_question_marks(4); - return; - } - scale((s_total[0]-s_free[0]) << 10); -} - -static s_stat* init_swp(const char *param) -{ - swp_stat *s = xmalloc(sizeof(swp_stat)); - s->collect = collect_swp; - return (s_stat*)s; -} - - -S_STAT(fd_stat) -S_STAT_END(fd_stat) - -static void collect_fd(fd_stat *s) -{ - ullong data[2]; - - if (rdval(get_file(&proc_sys_fs_filenr), "", data, 1, 2)) { - put_question_marks(4); - return; - } - - scale(data[0] - data[1]); -} - -static s_stat* init_fd(const char *param) -{ - fd_stat *s = xmalloc(sizeof(fd_stat)); - s->collect = collect_fd; - return (s_stat*)s; -} - - -S_STAT(time_stat) - int prec; - int scale; -S_STAT_END(time_stat) - -static void collect_time(time_stat *s) -{ - char buf[sizeof("12:34:56.123456")]; - struct tm* tm; - int us = tv.tv_usec + s->scale/2; - time_t t = tv.tv_sec; - - if (us >= 1000000) { - t++; - us -= 1000000; - } - tm = localtime(&t); - - sprintf(buf, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, tm->tm_sec); - if (s->prec) - sprintf(buf+8, ".%0*d", s->prec, us / s->scale); - put(buf); -} - -static s_stat* init_time(const char *param) -{ - int prec; - time_stat *s = xmalloc(sizeof(time_stat)); - - s->collect = collect_time; - prec = param[0]-'0'; - if (prec < 0) prec = 0; - else if (prec > 6) prec = 6; - s->prec = prec; - s->scale = 1; - while (prec++ < 6) - s->scale *= 10; - return (s_stat*)s; -} - -static void collect_info(s_stat *s) -{ - gen ^= 1; - while (s) { - put(s->label); - s->collect(s); - s = s->next; - } -} - - -typedef s_stat* init_func(const char *param); - -static const char options[] = "ncmsfixptbdr"; -static init_func *const init_functions[] = { - init_if, - init_cpu, - init_mem, - init_swp, - init_fd, - init_int, - init_ctx, - init_fork, - init_time, - init_blk, - init_delay, - init_cr, -}; - -int nmeter_main(int argc, char **argv); -int nmeter_main(int argc, char **argv) -{ - char buf[32]; - s_stat *first = NULL; - s_stat *last = NULL; - s_stat *s; - char *cur, *prev; - - INIT_G(); - - xchdir("/proc"); - - if (argc != 2) - bb_show_usage(); - - if (open_read_close("version", buf, sizeof(buf)) > 0) - is26 = (strstr(buf, " 2.4.")==NULL); - - // Can use argv[1] directly, but this will mess up - // parameters as seen by e.g. ps. Making a copy... - cur = xstrdup(argv[1]); - while (1) { - char *param, *p; - prev = cur; - again: - cur = strchr(cur, '%'); - if (!cur) - break; - if (cur[1] == '%') { // %% - strcpy(cur, cur+1); - cur++; - goto again; - } - *cur++ = '\0'; // overwrite % - if (cur[0] == '[') { - // format: %[foptstring] - cur++; - p = strchr(options, cur[0]); - param = cur+1; - while (cur[0] != ']') { - if (!cur[0]) - bb_show_usage(); - cur++; - } - *cur++ = '\0'; // overwrite [ - } else { - // format: %NNNNNNf - param = cur; - while (cur[0] >= '0' && cur[0] <= '9') - cur++; - if (!cur[0]) - bb_show_usage(); - p = strchr(options, cur[0]); - *cur++ = '\0'; // overwrite format char - } - if (!p) - bb_show_usage(); - s = init_functions[p-options](param); - if (s) { - s->label = prev; - s->next = 0; - if (!first) - first = s; - else - last->next = s; - last = s; - } else { - // %NNNNd or %r option. remove it from string - strcpy(prev + strlen(prev), cur); - cur = prev; - } - } - if (prev[0]) { - s = init_literal(); - s->label = prev; - s->next = 0; - if (!first) - first = s; - else - last->next = s; - last = s; - } - - // Generate first samples but do not print them, they're bogus - collect_info(first); - reset_outbuf(); - if (delta >= 0) { - gettimeofday(&tv, NULL); - usleep(delta > 1000000 ? 1000000 : delta - tv.tv_usec%deltanz); - } - - while (1) { - gettimeofday(&tv, NULL); - collect_info(first); - put(final_str); - print_outbuf(); - - // Negative delta -> no usleep at all - // This will hog the CPU but you can have REALLY GOOD - // time resolution ;) - // TODO: detect and avoid useless updates - // (like: nothing happens except time) - if (delta >= 0) { - int rem; - // can be commented out, will sacrifice sleep time precision a bit - gettimeofday(&tv, NULL); - if (need_seconds) - rem = delta - ((ullong)tv.tv_sec*1000000 + tv.tv_usec) % deltanz; - else - rem = delta - tv.tv_usec%deltanz; - // Sometimes kernel wakes us up just a tiny bit earlier than asked - // Do not go to very short sleep in this case - if (rem < delta/128) { - rem += delta; - } - usleep(rem); - } - } - - /*return 0;*/ -} |