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-rw-r--r--procps/nmeter.c106
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;
}
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