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nmeter: simple code shrink here and there
function old new delta nmeter_main 709 707 -2 init_cr 15 12 -3 collect_time 141 131 -10 collect_cpu 610 593 -17 init_cpu 82 63 -19 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-51) Total: -51 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
parent
8a26fda98c
commit
a63e2a8cb2
@ -83,8 +83,8 @@ struct globals {
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smallint is26;
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// 1 if sample delay is not an integer fraction of a second
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smallint need_seconds;
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char final_char;
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char *cur_outbuf;
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const char *final_str;
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int delta;
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int deltanz;
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struct timeval tv;
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@ -101,7 +101,6 @@ struct globals {
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#define is26 (G.is26 )
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#define need_seconds (G.need_seconds )
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#define cur_outbuf (G.cur_outbuf )
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#define final_str (G.final_str )
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#define delta (G.delta )
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#define deltanz (G.deltanz )
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#define tv (G.tv )
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@ -114,7 +113,7 @@ struct globals {
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#define INIT_G() do { \
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SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
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cur_outbuf = outbuf; \
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final_str = "\n"; \
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G.final_char = '\n'; \
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deltanz = delta = 1000000; \
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} while (0)
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@ -322,7 +321,6 @@ static void scale(ullong ul)
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put(buf);
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}
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#define S_STAT(a) \
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typedef struct a { \
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struct s_stat *next; \
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@ -354,11 +352,10 @@ static s_stat* init_delay(const char *param)
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static s_stat* init_cr(const char *param UNUSED_PARAM)
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{
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final_str = "\r";
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return (s_stat*)0;
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G.final_char = '\r';
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return NULL;
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}
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// user nice system idle iowait irq softirq (last 3 only in 2.6)
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//cpu 649369 0 341297 4336769 11640 7122 1183
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//cpuN 649369 0 341297 4336769 11640 7122 1183
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@ -366,10 +363,9 @@ enum { CPU_FIELDCNT = 7 };
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S_STAT(cpu_stat)
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ullong old[CPU_FIELDCNT];
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int bar_sz;
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char *bar;
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char bar[1];
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S_STAT_END(cpu_stat)
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static void FAST_FUNC collect_cpu(cpu_stat *s)
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{
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ullong data[CPU_FIELDCNT] = { 0, 0, 0, 0, 0, 0, 0 };
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@ -431,22 +427,20 @@ static void FAST_FUNC collect_cpu(cpu_stat *s)
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put(s->bar);
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}
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static s_stat* init_cpu(const char *param)
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{
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int sz;
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cpu_stat *s = xzalloc(sizeof(*s));
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s->collect = collect_cpu;
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cpu_stat *s;
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sz = strtoul(param, NULL, 0); /* param can be "" */
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if (sz < 10) sz = 10;
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if (sz > 1000) sz = 1000;
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s->bar = xzalloc(sz+1);
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s = xzalloc(sizeof(*s) + sz);
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/*s->bar[sz] = '\0'; - xzalloc did it */
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s->bar_sz = sz;
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s->collect = collect_cpu;
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return (s_stat*)s;
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}
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S_STAT(int_stat)
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ullong old;
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int no;
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@ -481,7 +475,6 @@ static s_stat* init_int(const char *param)
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return (s_stat*)s;
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}
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S_STAT(ctx_stat)
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ullong old;
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S_STAT_END(ctx_stat)
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@ -509,7 +502,6 @@ static s_stat* init_ctx(const char *param UNUSED_PARAM)
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return (s_stat*)s;
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}
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S_STAT(blk_stat)
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const char* lookfor;
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ullong old[2];
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@ -555,7 +547,6 @@ static s_stat* init_blk(const char *param UNUSED_PARAM)
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return (s_stat*)s;
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}
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S_STAT(fork_stat)
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ullong old;
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S_STAT_END(fork_stat)
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@ -598,7 +589,6 @@ static s_stat* init_fork(const char *param)
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return (s_stat*)s;
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}
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S_STAT(if_stat)
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ullong old[4];
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const char *device;
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@ -645,7 +635,6 @@ static s_stat* init_if(const char *device)
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return (s_stat*)s;
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}
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S_STAT(mem_stat)
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char opt;
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S_STAT_END(mem_stat)
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@ -728,7 +717,6 @@ static s_stat* init_mem(const char *param)
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return (s_stat*)s;
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}
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S_STAT(swp_stat)
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S_STAT_END(swp_stat)
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@ -752,7 +740,6 @@ static s_stat* init_swp(const char *param UNUSED_PARAM)
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return (s_stat*)s;
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}
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S_STAT(fd_stat)
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S_STAT_END(fd_stat)
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@ -778,17 +765,16 @@ static s_stat* init_fd(const char *param UNUSED_PARAM)
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return (s_stat*)s;
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}
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S_STAT(time_stat)
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int prec;
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int scale;
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unsigned prec;
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unsigned scale;
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S_STAT_END(time_stat)
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static void FAST_FUNC collect_time(time_stat *s)
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{
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char buf[sizeof("12:34:56.123456")];
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struct tm* tm;
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int us = tv.tv_usec + s->scale/2;
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unsigned us = tv.tv_usec + s->scale/2;
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time_t t = tv.tv_sec;
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if (us >= 1000000) {
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@ -829,7 +815,6 @@ static void FAST_FUNC collect_info(s_stat *s)
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}
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}
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typedef s_stat* init_func(const char *param);
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// Deprecated %NNNd is to be removed, -d MSEC supersedes it
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@ -951,7 +936,7 @@ int nmeter_main(int argc UNUSED_PARAM, char **argv)
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while (1) {
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gettimeofday(&tv, NULL);
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collect_info(first);
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put(final_str);
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put_c(G.final_char);
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print_outbuf();
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// Negative delta -> no usleep at all
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