These functions take the raw number and a unit and automatically print it out "scaled down" to a proper SI-prefix, for powers of 2 and 10 respectively. Apply them to the 2-power cases and keep the 10-power for a later commit.master
@@ -16,7 +16,7 @@ disk_free(const char *mnt) | |||
return NULL; | |||
} | |||
return fmt_scaled(fs.f_frsize * fs.f_bavail); | |||
return fmt_human_2(fs.f_frsize * fs.f_bavail, "B"); | |||
} | |||
const char * | |||
@@ -43,7 +43,7 @@ disk_total(const char *mnt) | |||
return NULL; | |||
} | |||
return fmt_scaled(fs.f_frsize * fs.f_blocks); | |||
return fmt_human_2(fs.f_frsize * fs.f_blocks, "B"); | |||
} | |||
const char * | |||
@@ -56,5 +56,5 @@ disk_used(const char *mnt) | |||
return NULL; | |||
} | |||
return fmt_scaled(fs.f_frsize * (fs.f_blocks - fs.f_bfree)); | |||
return fmt_human_2(fs.f_frsize * (fs.f_blocks - fs.f_bfree), "B"); | |||
} |
@@ -25,9 +25,12 @@ | |||
if (pscanf(path, "%llu", &rxbytes) != 1) { | |||
return NULL; | |||
} | |||
if (oldrxbytes == 0) { | |||
return NULL; | |||
} | |||
return oldrxbytes ? fmt_scaled((rxbytes - oldrxbytes) * | |||
1000 / interval) : NULL; | |||
return fmt_human_2((rxbytes - oldrxbytes) * | |||
1000 / interval, "B/s"); | |||
} | |||
const char * | |||
@@ -48,9 +51,12 @@ | |||
if (pscanf(path, "%llu", &txbytes) != 1) { | |||
return NULL; | |||
} | |||
if (oldtxbytes == 0) { | |||
return NULL; | |||
} | |||
return oldtxbytes ? fmt_scaled((txbytes - oldtxbytes) * | |||
1000 / interval) : NULL; | |||
return fmt_human_2((txbytes - oldtxbytes) * | |||
1000 / interval, "B/s"); | |||
} | |||
#elif defined(__OpenBSD__) | |||
#include <string.h> | |||
@@ -87,9 +93,12 @@ | |||
warn("reading 'if_data' failed"); | |||
return NULL; | |||
} | |||
if (oldrxbytes == 0) { | |||
return NULL; | |||
} | |||
return oldrxbytes ? fmt_scaled((rxbytes - oldrxbytes) * | |||
1000 / interval) : NULL; | |||
return fmt_human_2((rxbytes - oldrxbytes) * | |||
1000 / interval, "B/s"); | |||
} | |||
const char * | |||
@@ -120,8 +129,11 @@ | |||
warn("reading 'if_data' failed"); | |||
return NULL; | |||
} | |||
if (oldtxbytes == 0) { | |||
return NULL; | |||
} | |||
return oldtxbytes ? fmt_scaled((txbytes - oldtxbytes) * | |||
1000 / interval) : NULL; | |||
return fmt_human_2((txbytes - oldtxbytes) * | |||
1000 / interval, "B/s"); | |||
} | |||
#endif |
@@ -14,7 +14,7 @@ | |||
"MemFree: %ld kB\n" | |||
"MemAvailable: %ld kB\n", | |||
&free, &free, &free) == 3) ? | |||
fmt_scaled(free * 1024) : NULL; | |||
fmt_human_2(free * 1024, "B") : NULL; | |||
} | |||
const char * | |||
@@ -39,7 +39,7 @@ | |||
long total; | |||
return (pscanf("/proc/meminfo", "MemTotal: %ld kB\n", &total) == 1) ? | |||
fmt_scaled(total * 1024) : NULL; | |||
fmt_human_2(total * 1024, "B") : NULL; | |||
} | |||
const char * | |||
@@ -53,7 +53,7 @@ | |||
"MemAvailable: %ld kB\nBuffers: %ld kB\n" | |||
"Cached: %ld kB\n", | |||
&total, &free, &buffers, &buffers, &cached) == 5) ? | |||
fmt_scaled((total - free - buffers - cached) * 1024) : NULL; | |||
fmt_human_2((total - free - buffers - cached) * 1024, "B") : NULL; | |||
} | |||
#elif defined(__OpenBSD__) | |||
#include <stdlib.h> | |||
@@ -83,7 +83,7 @@ | |||
if (load_uvmexp(&uvmexp)) { | |||
free_pages = uvmexp.npages - uvmexp.active; | |||
return fmt_scaled(pagetok(free_pages, uvmexp.pageshift) * 1024); | |||
return fmt_human_2(pagetok(free_pages, uvmexp.pageshift) * 1024, "B"); | |||
} | |||
return NULL; | |||
@@ -109,7 +109,7 @@ | |||
struct uvmexp uvmexp; | |||
if (load_uvmexp(&uvmexp)) { | |||
return fmt_scaled(pagetok(uvmexp.npages, uvmexp.pageshift) * 1024); | |||
return fmt_human_2(pagetok(uvmexp.npages, uvmexp.pageshift) * 1024, "B"); | |||
} | |||
return NULL; | |||
@@ -121,7 +121,7 @@ | |||
struct uvmexp uvmexp; | |||
if (load_uvmexp(&uvmexp)) { | |||
return fmt_scaled(pagetok(uvmexp.active, uvmexp.pageshift) * 1024); | |||
return fmt_human_2(pagetok(uvmexp.active, uvmexp.pageshift) * 1024, "B"); | |||
} | |||
return NULL; | |||
@@ -48,7 +48,7 @@ | |||
} | |||
sscanf(match, "SwapFree: %ld kB\n", &free); | |||
return fmt_scaled(free * 1024); | |||
return fmt_human_2(free * 1024, "B"); | |||
} | |||
const char * | |||
@@ -94,7 +94,7 @@ | |||
} | |||
sscanf(match, "SwapTotal: %ld kB\n", &total); | |||
return fmt_scaled(total * 1024); | |||
return fmt_human_2(total * 1024, "B"); | |||
} | |||
const char * | |||
@@ -122,7 +122,7 @@ | |||
} | |||
sscanf(match, "SwapFree: %ld kB\n", &free); | |||
return fmt_scaled((total - free - cached) * 1024); | |||
return fmt_human_2((total - free - cached) * 1024, "B"); | |||
} | |||
#elif defined(__OpenBSD__) | |||
#include <stdlib.h> | |||
@@ -174,7 +174,7 @@ | |||
getstats(&total, &used); | |||
return fmt_scaled((total - used) * 1024); | |||
return fmt_human_2((total - used) * 1024, "B"); | |||
} | |||
const char * | |||
@@ -194,7 +194,7 @@ | |||
getstats(&total, &used); | |||
return fmt_scaled(total * 1024); | |||
return fmt_human_2(total * 1024, "B"); | |||
} | |||
const char * | |||
@@ -204,6 +204,6 @@ | |||
getstats(&total, &used); | |||
return fmt_scaled(used * 1024); | |||
return fmt_human_2(used * 1024, "B"); | |||
} | |||
#endif |
@@ -87,19 +87,35 @@ bprintf(const char *fmt, ...) | |||
} | |||
const char * | |||
fmt_scaled(size_t bytes) | |||
fmt_human_2(size_t num, char *unit) | |||
{ | |||
unsigned int i; | |||
float scaled; | |||
const char *units[] = { "B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", | |||
"ZiB", "YiB" }; | |||
size_t i; | |||
double scaled; | |||
const char *prefix[] = { "", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", | |||
"Zi", "Yi" }; | |||
scaled = bytes; | |||
for (i = 0; i < LEN(units) && scaled >= 1024; i++) { | |||
scaled = num; | |||
for (i = 0; i < LEN(prefix) && scaled >= 1024; i++) { | |||
scaled /= 1024.0; | |||
} | |||
return bprintf("%.1f%s", scaled, units[i]); | |||
return bprintf("%.1f%s%s", scaled, prefix[i], unit); | |||
} | |||
const char * | |||
fmt_human_10(size_t num, char *unit) | |||
{ | |||
size_t i; | |||
double scaled; | |||
const char *prefix[] = { "", "K", "M", "G", "T", "P", "E", | |||
"Z", "Y" }; | |||
scaled = num; | |||
for (i = 0; i < LEN(prefix) && scaled >= 1000; i++) { | |||
scaled /= 1000.0; | |||
} | |||
return bprintf("%.1f%s%s", scaled, prefix[i], unit); | |||
} | |||
int | |||
@@ -10,5 +10,6 @@ void die(const char *, ...); | |||
int esnprintf(char *str, size_t size, const char *fmt, ...); | |||
const char *bprintf(const char *fmt, ...); | |||
const char *fmt_scaled(size_t); | |||
const char *fmt_human_2(size_t num, char *unit); | |||
const char *fmt_human_10(size_t num, char *unit); | |||
int pscanf(const char *path, const char *fmt, ...); |