diff options
| -rw-r--r-- | procps/nmeter.c | 106 |
1 files changed, 54 insertions, 52 deletions
diff --git a/procps/nmeter.c b/procps/nmeter.c index 8fe39c4..d6222af 100644 --- a/procps/nmeter.c +++ b/procps/nmeter.c @@ -208,67 +208,50 @@ static ullong read_after_slash(const char *p) return strtoull(p+1, NULL, 10); } -enum conv_type { conv_decimal, conv_slash }; +enum conv_type { + conv_decimal = 0, + conv_slash = 1 +}; // 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) +// Values are stored in vec[]. +// posbits is a bit lit of positions we are interested in. +// for example: 00100110 - we want 1st, 2nd and 5th value. +// posbits.bit0 encodes conversion type. +static int rdval(const char* p, const char* key, ullong *vec, long posbits) { - int indexline; - int indexnext; + unsigned curpos; p = strstr(p, key); if (!p) return 1; p += strlen(key); - indexline = 1; - indexnext = va_arg(arg_ptr, int); + curpos = 1 << 1; while (1) { while (*p == ' ' || *p == '\t') p++; if (*p == '\n' || *p == '\0') break; - if (indexline == indexnext) { // read this value - *vec++ = conv==conv_decimal ? + if (curpos & posbits) { // read this value + *vec++ = (posbits & 1) == conv_decimal ? strtoull(p, NULL, 10) : read_after_slash(p); - indexnext = va_arg(arg_ptr, int); - if (!indexnext) + posbits -= curpos; + if (posbits <= 1) return 0; } - while (*p > ' ') p++; // skip over value - indexline++; + while (*p > ' ') // skip over the value + p++; + curpos <<= 1; } 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, ...) +static int rdval_loadavg(const char* p, ullong *vec, long posbits) { - va_list arg_ptr; int result; - - va_start(arg_ptr, vec); - result = vrdval(p, "", conv_slash, vec, arg_ptr); - va_end(arg_ptr); - + result = rdval(p, "", vec, posbits | conv_slash); return result; } @@ -397,7 +380,15 @@ static void FAST_FUNC collect_cpu(cpu_stat *s) char *bar = s->bar; int i; - if (rdval(get_file(&proc_stat), "cpu ", data, 1, 2, 3, 4, 5, 6, 7, 0)) { + if (rdval(get_file(&proc_stat), "cpu ", data, 0 + | (1 << 1) + | (1 << 2) + | (1 << 3) + | (1 << 4) + | (1 << 5) + | (1 << 6) + | (1 << 7)) + ) { put_question_marks(bar_sz); return; } @@ -466,7 +457,7 @@ static void FAST_FUNC collect_int(int_stat *s) ullong data[1]; ullong old; - if (rdval(get_file(&proc_stat), "intr", data, s->no, 0)) { + if (rdval(get_file(&proc_stat), "intr", data, 1 << s->no)) { put_question_marks(4); return; } @@ -500,7 +491,7 @@ static void FAST_FUNC collect_ctx(ctx_stat *s) ullong data[1]; ullong old; - if (rdval(get_file(&proc_stat), "ctxt", data, 1, 0)) { + if (rdval(get_file(&proc_stat), "ctxt", data, 1 << 1)) { put_question_marks(4); return; } @@ -532,7 +523,10 @@ static void FAST_FUNC collect_blk(blk_stat *s) if (is26) { i = rdval_diskstats(get_file(&proc_diskstats), data); } else { - i = rdval(get_file(&proc_stat), s->lookfor, data, 1, 2, 0); + i = rdval(get_file(&proc_stat), s->lookfor, data, 0 + | (1 << 1) + | (1 << 2) + ); // Linux 2.4 reports bio in Kbytes, convert to sectors: data[0] *= 2; data[1] *= 2; @@ -570,7 +564,7 @@ static void FAST_FUNC collect_thread_nr(fork_stat *s UNUSED_PARAM) { ullong data[1]; - if (rdval_loadavg(get_file(&proc_loadavg), data, 4, 0)) { + if (rdval_loadavg(get_file(&proc_loadavg), data, 1 << 4)) { put_question_marks(4); return; } @@ -582,7 +576,7 @@ static void FAST_FUNC collect_fork(fork_stat *s) ullong data[1]; ullong old; - if (rdval(get_file(&proc_stat), "processes", data, 1, 0)) { + if (rdval(get_file(&proc_stat), "processes", data, 1 << 1)) { put_question_marks(4); return; } @@ -616,7 +610,12 @@ static void FAST_FUNC 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, 0)) { + if (rdval(get_file(&proc_net_dev), s->device_colon, data, 0 + | (1 << 1) + | (1 << 3) + | (1 << 9) + | (1 << 11)) + ) { put_question_marks(10); return; } @@ -694,7 +693,7 @@ static void FAST_FUNC collect_mem(mem_stat *s) ullong m_cached = 0; ullong m_slab = 0; - if (rdval(get_file(&proc_meminfo), "MemTotal:", &m_total, 1, 0)) { + if (rdval(get_file(&proc_meminfo), "MemTotal:", &m_total, 1 << 1)) { put_question_marks(4); return; } @@ -703,10 +702,10 @@ static void FAST_FUNC collect_mem(mem_stat *s) return; } - if (rdval(proc_meminfo.file, "MemFree:", &m_free , 1, 0) - || rdval(proc_meminfo.file, "Buffers:", &m_bufs , 1, 0) - || rdval(proc_meminfo.file, "Cached:", &m_cached, 1, 0) - || rdval(proc_meminfo.file, "Slab:", &m_slab , 1, 0) + if (rdval(proc_meminfo.file, "MemFree:", &m_free , 1 << 1) + || rdval(proc_meminfo.file, "Buffers:", &m_bufs , 1 << 1) + || rdval(proc_meminfo.file, "Cached:", &m_cached, 1 << 1) + || rdval(proc_meminfo.file, "Slab:", &m_slab , 1 << 1) ) { put_question_marks(4); return; @@ -737,8 +736,8 @@ static void FAST_FUNC collect_swp(swp_stat *s UNUSED_PARAM) { ullong s_total[1]; ullong s_free[1]; - if (rdval(get_file(&proc_meminfo), "SwapTotal:", s_total, 1, 0) - || rdval(proc_meminfo.file, "SwapFree:" , s_free, 1, 0) + if (rdval(get_file(&proc_meminfo), "SwapTotal:", s_total, 1 << 1) + || rdval(proc_meminfo.file, "SwapFree:" , s_free, 1 << 1) ) { put_question_marks(4); return; @@ -761,7 +760,10 @@ static void FAST_FUNC collect_fd(fd_stat *s UNUSED_PARAM) { ullong data[2]; - if (rdval(get_file(&proc_sys_fs_filenr), "", data, 1, 2, 0)) { + if (rdval(get_file(&proc_sys_fs_filenr), "", data, 0 + | (1 << 1) + | (1 << 2)) + ) { put_question_marks(4); return; } |